76 results on '"auxina"'
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2. Produtividade de minicepas e enraizamento de miniestacas de sapucaia (Lecythis lanceolata).
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Tomaz Sant'Ana, Bruna, Christo Berude, Marciana, Arão Feletti, Thaís, Winckler Caldeira, Marcos Vinicius, and de Oliveira Gonçalves, Elzimar
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VEGETATIVE propagation , *AUXIN , *FORESTS & forestry - Abstract
The objective of this work was to evaluate the minicutting as a vegetative propagation technique and the effect of the application of different doses of indolebutyric acid (AIB) on the rooting of minicuttings of Lecythis lanceolata. The treatments consisted of two collections of shoots, at doses of 0, 2,000, 4,000 and 8,000 mg L-1 of IBA, (factorial 2 x 4), with four replications, in a completely randomized design. The seminal mini garden of Lecythis lanceolata has the potential for the supply of minicuttings. However, adventitious rooting is low, regardless of the application of auxin. [ABSTRACT FROM AUTHOR]
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- 2023
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3. BIOSTIMULANTS AND INDOLEBUTYRIC ACID IMPROVE ROOTING OF WOOD CUTTINGS FROM DIFFERENT GRAPEVINE ROOTSTOCKS.
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Fontanella Brighenti, Alberto, Ribeiro de Freitas, Fábio, Coelho Malohlava, Isadora Teixeira, Graciano Votre, Thainá Carolina, Afonso Voltolini, José, Lima da Silva, Aparecido, Pires Feldberg, Nelson, and André Würz, Douglas
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ROOTSTOCKS ,WOOD ,VEGETATIVE propagation ,ROOT development ,GRAPES ,PLANT hormones ,PLANT growth - Abstract
Copyright of Journal of Viticulture & Enology / Ciência e Técnica Vitivinícola is the property of EDP Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
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- View/download PDF
4. PROPAGACIÓN VEGETATIVA DE Retrophyllum rospigliosii (Pilg.) C.N. Page "ULCUMANO" EN CÁMARA DE SUBIRRIGACIÓN EN CHANCHAMAYO / PERÚ.
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More, Pablo, Cuellar, José, and Salazar, Evelin
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VEGETATIVE propagation , *PLANT cuttings , *FACTORIAL experiment designs , *AGING in plants , *SUBIRRIGATION , *CONIFERS - Abstract
The ulcumano (Retrophyllum rospigliosii) is an important native conifer of Peru, which is currently disappearing from the areas where it was dominant, due to its excessive use and problems in its regeneration. Also, there is limited information on its vegetative propagation. For this reason, the objective was to determine the efficiency of the vegetative propagation of the ulcumano in the sub-irrigation chamber. Four concentrations of IBA were used (0, 1 000, 3 000 and 5 000 ppm), two ages of mother plants (two and eight years) and two types of cuttings (apical and middle); under a completely random factorial design. The results indicate that, at the end of 17 weeks, the T7 treatment (corresponding to medium type cuttings, from two-year-old mother plants and treated with 3 000 ppm IBA) obtained the highest rooting (40%), root length (7 mm) and number of roots per cutting (2.2). Auxin AIB didn't influence rooting. Type cuttings influenced survival, rooting, and sprouting. The interaction between the cuttings mother plant and type of s had a significant influence on rooting success, two-year-old trees and medium-type cuttings obtained higher survival (76.85%), rooting (32.5%) and sprouting (70%). It is concluded that it is possible to propagate ulcumano using middle cuttings of two-year-old trees. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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5. Influencia de sustratos y concentraciones de ácido indol butírico en la propagación vegetativa de Cinchona officinalis L. (quina) en Amazonas, Perú.
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Sánchez Santillán, Tito, Silva Valqui, Gelver, Chichipe Puscan, Ariel Kedy, Trigoso Pinedo, Marcial, Bobadilla Rivera, Leidy Gheraldinne, and Jiménez Yoplac, Geidy Yecenia
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VEGETATIVE propagation , *CLOUD forests , *BUTYRIC acid , *FACTORIAL experiment designs , *SEA level , *FUNGICIDES - Abstract
The research aims to evaluate the influence of substrates and concentrations of indol butyric acid (AIB) on the vegetative propagation of Cinchona officinalis L. (quina) in Amazonas, Peru. A complete randomized factorial design of 3A x 4B was used, where factor A: substrates (sand, sand 50% + peat 50% and peat) and factor B: AIB concentration (0, 1, 2, 3 g.L'1). The study was developed in two phases. In the field, juvenile orthotropic branches of plus trees were collected from the San Jerónimo cloud forest in Peru, located at 2616 meters above sea level. The nursery phase was developed in the experimental center of the National University Toribio Rodriguez of Mendoza-Amazon. The juvenile branches collected from the field were uniformed to 7 cm, leaving two leaves with 50% of area, were disinfected with Propineb 70% fungicide 3 g.L'1 of water. It was found that substrates influenced significantly, standing out the sand substrate in the survival and sand + peat showed superiority in rooting, number and length of roots. Concentrations of 2 and 3 g.L'1 of AIB, stimulated root emission and increased the number and size of roots. Substrates and AIB concentrations positively influenced the rooting of young branches of C. officinalis under controlled environmental conditions. [ABSTRACT FROM AUTHOR]
- Published
- 2020
6. Effects of the phenological stage, cutting type and plant growth regulators on propagation with stem cuttings of Poiretia latifolia Vogel, a Brazilian native medicinal plant.
- Author
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VERDI, ROVIER, BETTONI, JEAN CARLOS, WERNER, SIMONE SILMARA, CARISSIMI BOFF, MARI INÊS, and BOFF, PEDRO
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PLANT regulators ,MEDICINAL plants ,ANTIBIOTICS ,DOMESTICATION of plants ,VEGETATIVE propagation - Abstract
Copyright of Revista Colombiana de Ciencias Hortícolas is the property of Revista Colombiana de Ciencias Horticolas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
7. Etiolation and indolbutyric acid in the Olea europaea cv. Maria da Fé minicuttings.
- Author
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Brum Frölech, Dianini, Fernandes de Lopes, Maria Inez Barros, de Assis, Adriane Marinho, and Wulff Schuch, Márcia
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OLIVE , *PLANT regulators , *CALLUS - Abstract
This study aims to evaluate the effect of etiolation and the usage of indolbutyric acid (IBA) in the propagation of Olea europaea cv. Maria da Fé minicuttings. The experimental outline is a completely randomized design, with a 2 x 3 bifactorial scheme [minicuttings from plants with and without etiolation and three concentrations of indolbutyric acid (0, 1,000, and 2,000 mg L-1)]. After 110 days, the following has been evaluated: percentage of survival, foliar retention and rooting, number of roots, length of the largest root, root dry matter mass and percentage of unrooted minicuttings with calluses. For the percentage of survival, foliar retention and rooting, number of roots and root dry matter mass, there has only been significance for IBA concentrations, and in general, the IBA 1,000 mg L-1 concentration provided the highest scores. For the length of the largest root and minicuttings with non-rooted callus, there has been interaction between treatments, with the lowest scores for callus formation in the minicuttings with etiolation and without IBA. It can be concluded that the minicutting of Olea europaea cv. Maria da Fé can be carried out without etiolation in the mother plants, using 1,000 mg L-1 of IBA. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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8. EFEITO DO ÁCIDO INDOLBUTÍRICO NO ENRAIZAMENTO DE ESTACAS FOLIARES E CAULINARES DE PARIPAROBA (Piper umbellatum L.).
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Nunes Gomes, Erik and Krinski, Diones
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PLANT propagation , *VEGETATIVE propagation , *SPROUTS , *EXPERIMENTAL design , *RESOURCE exploitation , *FACTORIALS - Abstract
Piper umbellatum L. is a Brazilian native species whose medicinal properties confer it with potential for economic exploitation. The study of propagation methods for this species is fundamental to avoid its exploitation from being restricted to extractivism. The objective of the present research was to evaluate the propagation of P. umbellatum by leaf and stem cuttings and the effect of indolebutyric acid (IBA) on their rooting. The experimental design consisted of a 2x3 factorial scheme, with two types of cuttings (leaf and stem) and three IBA treatments (0, 2000, 4000 mg. L-1). Leafless stem cuttings were prepared at a length of 15 cm. Leaf cuttings comprised leaf petiolo and limbo, reduced to a fifth of its original area. After 50 days from planting, in treatment without AIB, leaf cuttings had the greatest rooting percentage (22.5%) when compared to stem cuttings (7.5%). At the concentration of 2000 mg.L-1, there was an increase in rooting percentages for both types of cuttings, with higher rates for leaf cuttings (40%). At the concentration of 4000 mg.L-1, stem cuttings had a better rooting performance, whilst rates of leaf cuttings decreased. On average, leaf cuttings had a greater number and length of roots than stem cuttings. Leaf cuttings demonstrated little developed and small-sized sprouts at all treatments. The use of this type of propagule should be restricted to conditions where there is a limitation in the availability of stem cuttings for the propagation of P. umbellatum. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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9. Indolebutyric acid in "pulse" treatment on the rooting of Luehea divaricata minicuttings.
- Author
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da Silva, Karol Buuron, Reiniger, Lia Rejane Silveira, dos Santos Rabaiolli, Silvia Machado, Stefanel, Charlene Moro, and da Silva, Leandro Dutra
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ROOT formation , *VEGETATIVE propagation , *ACIDS - Abstract
The objective of the present research was to evaluate the effect of different concentrations of indolebutyric acid (IBA) on the rooting of Luehea divaricata minicuttings under two different cultivation periods in a greenhouse environment. The minicuttings were immersed in a hydroethanolic solution containing IBA. All minicuttings survived after 30 and 60 days of cultivation. Root formation at 30 days of cultivation with 1000 mg L-1 of IBA was 91.7%, the same rate as that observed with 4000 mg L-1. At the 1000 mg L-1 concentration, the number of roots was the greatest among all treatments, with 8.42 roots per minicutting after 30 days of cultivation. After 30 days of cultivation, the formation and number of roots with the use of 1000 mg L-1 of IBA in the "pulse" treatment produced the best outcome results, allowing the plants to spend less time in a greenhouse at a reduced concentration of auxin when compared with other treatments. However, to obtain higher averages of secondary root formation, root length, and number of leaves, it is necessary to increase the cultivation period to 60 days. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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10. INDUÇÃO DO ENRAIZAMENTO DE REBENTOS DE AMORA -- PRETA (Rubus ulmifolius) TRATADOS COM ÁCIDO INDOLILBUTÍRICO.
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PINTO, Calistene Aparecida and CARVALHO, Tereza Cristina
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VEGETATIVE propagation , *BLOCK designs , *BLACKBERRIES , *SURFACE area , *PLANT shoots , *EXPERIMENTAL design , *DEAD trees - Abstract
The objective of the present work was to evaluate the rooting potential of blackberry shoots, influenced by indolylbutyric acid. For the test, blackberry shoots of approximately 10 cm in length with different diameters, obtained in the second fortnigh to February 2018 wereused. The experimental design was a randomized block design, with the blackberry saplings were treated with AIB (indolylbutyricacid) atfive concentrations, which correspondto 0, 10, 20, 50 and 100 mg L-1. Each treatment contained four replicates, and each replicate was composed of 20 sprouts of blackberry. At theend of 87 day sof cultivation, shoots were evaluated for percentage of live and rooted shoots, dead and not rooted live, root volume (mm³), specific surface area (mm²), total root length (mm), weighted diameter of roots (mm) and, fresh and dry root pasta (g). It was concluded that there was no effect of indolylbutyric acid concentrations on percentage of viable, non -- viableanddead blackberry shoots for total root lengthand for fresh mass and drymass, and with the increase of IBA concentrations the decrease for the variables of volume, specific surface area and weighted root diameter. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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11. Vegetative rescue and ex vitro system production of Tibouchina sellowiana clonal plants by cutting and mini-cutting.
- Author
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de Oliveira Fragoso, Rosimeri, Stuepp, Carlos André, de Sá, Francielen Paola, Kratz, Dagma, Zuffellato-Ribas, Katia Christina, and Wendling, Ivar
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TIBOUCHINA , *PLANT shoots , *CULTIVARS , *PLANT cuttings , *PLANT species - Abstract
We aimed to evaluate the rooting potential of Tibouchina sellowiana through the experiments: I - Cuttings from current-year shoots and epicormic shoots were submitted to IBA concentrations: 0, 500, 1000, 1500 and 2000mg L-1, in a factorial arrangement 2 x 5 (two types of cuttings x five IBA concentrations), with four replicates and 20 cuttings each; II - mini-stumps of Tibouchina sellowiana were submitted to successive shoots collecting during the four seasons, in a split-plot design, with five replications of ten mini-stumps per experimental unit. From the shoots of mini-stumps, mini-cuttings were produced, which were initially kept in greenhouse and later transferred to full sun, in a 4 x 5 factorial arrangement (four seasons x five collections per season), with four replicates of 12 mini-cuttings. Superiority of epicormic shoots cuttings was reported when compared to the current-year shoots, which showed the highest rooting and leaves maintenance (42.50% and 55.00%, respectively), eliminating the use of IBA. High survival of mini-stumps (over 80%) and the mini-cuttings production (170mini-cuttings m-2 month-1) in clonal mini-garden and the mini-cuttings survival (above 80%) in the greenhouse demonstrated the technical feasibility, with summer as the most appropriate time to collect mini-cuttings. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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12. Enraizamiento de esquejes de Caña Agria (Cheilocostus speciosus. J. Koenig).
- Author
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Durango Ballesteros, Eder and Humanez Alvarez, Alicia
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- 2017
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13. Efecto de tratamientos auxínicos en el enraizamiento de dos especies de Malpighia mediante la técnica de acodo aéreo.
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Ramírez-Villalobos, Maribel del Carmen, Segundo-Urdaneta-Fernández, Aly, Urdaneta-Ramírez, Verónica Chinquinquirá, and García-Marrero, Danny Eugenio
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MALPIGHIA , *AUXIN , *AIR layering , *PLANT propagation , *PLANT roots - Abstract
A study was conducted in order to determine the effect of auxin treatments on the rooting of two Malpighia species (semeruco), through the air layering technique. Air layers were made on branches of M. glabra and M. emarginata and then eight auxin treatments were applied (AT): 0, 2 000, 4 000 and 6 000 mg kg-1 of naphthalene acetic acid (NAA) and of indole butyric acid (IBA). A completely randomized design was used, with factorial arrangement and six repetitions. After seven weeks the percentage of rooted layers (PRL), percentage of live layers (PLL), number of roots per layer (NR) and length of the longest root (RL), were evaluated. No interaction of the studied factors (species by AT) was found. There were no significant differences either between the species in the evaluated variables. With the doses of 4 000 and 6 000 mg kg-1 the highest PRL were found (85,2 and 87,5 %, respectively), as well as the highest NR and RL, without differing significantly between them. Good rooting was also obtained (62,5-64,0 %) with the AT of 0 mg kg-1 (control), which differed significantly from the other treatments. The propagation of the two species through the air layering technique was achieved by the application of 4 000 and 6 000 mg kg-1 of NAA and IBA, which produced the best rooting. [ABSTRACT FROM AUTHOR]
- Published
- 2017
14. Enraizamento de estacas de erva-baleeira em função de diferentes concentrações de ácido indol butírico e número de folhas.
- Author
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Bischoff, Adélia Maria, Vendramim, Daniel William, Nunes Gomes, Erik, Zuffellato Ribas, Katia Christina, Engel, Mara Luana, and de Almeida Maggioni, Renata
- Abstract
Varronia curassavica Jacq., black sage, is a medicinal plant with commercial interest due its anti-inflammatory properties. This species can be propagated by seeds, via vegetative propagation enabling the achievement of more uniform crops in relation to the agronomic and phytochemicals aspects. Thus, the present study aimed to evaluate the effect of different concentrations of indole butyric acid (IBA) and different leaf numbers in softwood stem cuttings of black sage plants. The experiment was conducted in august (winter season) in a factorial arrangement 3x2, with three different concentrations of IBA (0, 1500 and 3000 mg L-1) and two numbers of leaves (two leaves or one leaf). The experiment was conducted in a greenhouse under intermittent mist conditions. At 60 days after planting, the rooting percentage, number of roots per cutting, length of the three longest roots, percentage of cuttings with callus, percentage of live cuttings without roots nor callus, percentage of dead cuttings and percentage of cuttings with shoots were evaluated. There were significant differences for number of roots per cutting, which was higher at a concentration of 3000 mg L-1 compared to treatment without application of IBA (32.5%), and for percentage of cuttings with callus (15.0%), also higher were cuttings with two leaves at a concentration of 3000 mg L-1 IBA. For other factors there were no statistical differences between treatments. We conclude that the different number of leaves and IBA concentrations had little influence on the adventitious roots, mainly due to the winter season. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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15. Estaquia de mirtilo nas estações do ano com ácido indolbutírico e aquecimento do substrato Cutting propagation of blueberry in seasons of the year with indolebutyric acid and bottom heat
- Author
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Marcos Aurélio Marangon and Luiz Antonio Biasi
- Subjects
Vaccinium ashei ,auxina ,enraizamento ,propagação vegetativa ,auxin ,rooting ,vegetative propagation ,Agriculture (General) ,S1-972 - Abstract
O objetivo deste trabalho foi avaliar os efeitos da aplicação de concentrações do ácido indolbutírico (AIB) e do aquecimento do substrato sobre o enraizamento de estacas caulinares das cultivares de mirtilo Bluebelle, Bluegem e Powderblue, nas quatro estações do ano. Utilizou-se o delineamento experimental inteiramente casualizado, com arranjo fatorial 4x5x2 (estações x concentrações de AIB x com e sem aquecimento do substrato), com 4 repetições e 20 estacas como unidade experimental. Foram avaliadas as percentagens de estacas enraizadas, mortas, vivas e com calo, e o número e o comprimento médio de raízes. As maiores percentagens de enraizamento foram 57,1% na 'Bluegem', no verão, 30% na 'Bluebelle', na primavera, com aquecimento, e 63% na 'Powderblue', no verão, com aquecimento. O AIB na concentração de 2.000 mg L-1 aumentou o enraizamento de estacas das cultivares Bluegem e Powderblue. O aquecimento do substrato melhora o enraizamento das estacas coletadas no outono e no inverno, em todas as cultivares e, também, das estacas coletadas no verão e na primavera, na cultivar Bluebelle.The objective of this work was to evaluate the effects of the application of concentrations of indolebutyric acid (IBA) and of bottom heat on rooting of stem cuttings of the blueberry cultivars Bluebelle, Bluegem, and Powderblue in the four seasons of the year. A completely randomized design was used, with a 4x5x2 factorial arrangement (seasons x concentrations of IBA x with and without heat), with 4 replicates and 20 stem cuttings as an experimental unit. The percentage of rooted cuttings, dead, alive and with callus, and the number and average length of the roots were evaluated. The highest rooting percentages were 57.1% for 'Bluegem' in summer, 30% for 'Bluebelle' in spring, with heating, and 63% for 'Powderblue' in summer with heating. IBA at the concentration of 2,000 mg L-1 increased the rooting of cuttings of the cultivars Bluegem and 'Powderblue'. Bottom heat increases the rooting of the cuttings harvested during autumn and winter in all cultivars, and also the cuttings harvested during summer and spring in the Bluebelle cultivar.
- Published
- 2013
16. Estaquia de Croton zehntneri Pax et Hoffm. com diferentes concentrações de ácido indol butírico Cuttings of Croton zehntneri Pax et Hoffm. At different concentrations of indole butyric acid
- Author
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Cleyton Saialy Medeiros Cunha, Sandra Sely Silveira Maia, and Maria de Fatima Barbosa Coelho
- Subjects
propagação vegetativa ,enraizamento ,auxina ,canelinha ,caatinga ,vegetative propagation ,rooting ,auxin ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
Croton zehntneri Pax et Hoffm. (canela de cunhã) é nativa do nordeste do Brasil, tem efeito antioxidante e atividade antinociceptiva e antidepressiva. O estudo da propagação vegetativa é importante por causa da baixa produção de sementes e existência de diferentes quimiotipos da espécie. O objetivo do presente trabalho foi verificar o efeito de ácido indolbutirico (AIB) na produção de mudas por estacas de C. zehntneri. Os tratamentos foram as concentrações zero, 1.000, 2.000, 3.000, 4.000 e 5.000mg L-1 de AIB. O delineamento experimental foi em blocos ao acaso, com seis tratamentos e quatro repetições de 10 estacas por parcela. Foram analisadas aos 40 dias as seguintes características: porcentagem de enraizamento, número e comprimento das raízes por estaca, número de brotações, número de folhas, massa seca foliar e de raízes. A porcentagem de enraizamento foi maior nas maiores concentrações de AIB 3.000, 4.000 e 5.000mg L-1 (80, 90 e 100%). A porcentagem de enraizamento, o número e comprimento das raízes e o número de folhas apresentaram comportamento linear em relação às concentrações de AIB, quanto maior a concentração maior o valor da característica. O número de brotações diminuiu com a maior concentração de AIB. A massa seca das raízes foi maior nos pré-tratamentos com 4.000 e 5.000mg L-1 AIB (0,35g). O pré-tratamento das estacas de C. zehntneri com solução de AIB na concentração de 4.000mg L-1 por 10 segundos é recomendado para a propagação vegetativa.Croton zehntneri Pax et Hoffm. (canela de cunhã) is native to northeastern Brazil, has antioxidant, antinociceptive and antidepressant properties. The study of vegetative propagation is important because of the low seeds production and the existence of different chemotypes in the species. The aim of this study was to assess the effect of indole butyric acid (IBA) in plant propagation by cuttings of C. zehntneri. The experimental design was randomized blocks with six treatments and four replications of 10 cuttings. The treatments were zero concentrations, 1,000, 2,000, 3,000, 4,000 and 5,000mg L-1 IBA. It was analyzed the following characteristics: rooting percentage, root number per cutting, root length, shoot number, number of leaves, leaf dry mass and roots dry mass. The rooting percentage was higher for higher concentrations of IBA 3,000, 4,000 and 5,000mg L-1 (80, 90 and 100%). The percentage of rooting, root number, root length and number of leaves showed linear behavior in relation to concentrations of IBA, the higher the concentration the greater the value of the variable. The number of shoots decreased at higher concentration. The dry mass of roots was higher in pre-treatment with 4,000 and 5,000mg L-1 IBA (0.35g). Pre-treatment of cuttings of C. zehntneri with a solution of IBA at a concentration of 4,000mg L-1 for 10 seconds is recommended for vegetative propagation of the species.
- Published
- 2012
- Full Text
- View/download PDF
17. Substratos, concentrações de ácido indolbutírico e tipos de miniestacas no enraizamento de melaleuca (Melaleuca alternifolia Cheel) Substrates, indolebutyric acid levels and types of minicuttings on the rooting of tea tree (Melaleuca alternifolia Cheel)
- Author
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Y. Oliveira, G.B. Alcantara, I. Guedes, F. Pinto, M. Quoirin, and L.A. Biasi
- Subjects
Myrtaceae ,auxina ,óleo essencial ,plantas medicinais ,propagação vegetativa ,auxin ,essential oil ,medicinal plants ,vegetative propagation ,Pharmacy and materia medica ,RS1-441 ,Botany ,QK1-989 - Abstract
Melaleuca alternifolia tem como produto principal o óleo essencial extraído das folhas devido às propriedades antifúngicas e antibacterianas. Pouco se tem relatado sobre a propagação desta espécie, sendo a miniestaquia uma alternativa para a propagação vegetativa de clones superiores visando à implantação de campo de produção. Este trabalho teve como objetivo avaliar o efeito de diferentes substratos, concentrações de AIB, e tipo de miniestaca, no enraizamento de Melaleuca alternifolia. No primeiro experimento foram testados os substratos, areia de granulometria média, Plantmax HT®, Golden-Mix® e vermiculita. No segundo experimento foram avaliadas diferentes concentrações de AIB (0, 500, 1000 e 2000 mg L-1), em dois tipos de miniestacas (apical e mediana). As miniestacas foram confeccionadas com 5 cm de comprimento, mantidas em casa de vegetação com nebulização intermitente, e, após 45 dias do plantio, foram avaliadas as porcentagens de miniestacas enraizadas, com calos e não responsivas, o número de raízes formadas por miniestaca e o comprimento das três maiores raízes (cm). O substrato Golden-Mix® e as miniestacas coletadas da porção apical do ramo submetidas ao tratamento com 500 mg L-1 de AIB apresentaram maior porcentagem de enraizamento e melhor qualidade do sistema radicial.Melaleuca alternifolia has as major product the essential oil extracted from its leaves due to its antifungal and antibacterial properties. There are scarce reports about the propagation of this species, and minicutting is an alternative for vegetative propagation of superior clones in order to establish a production field. This study aimed to evaluate the effect of different substrates, IBA levels and types of minicuttings on the rooting of Melaleuca alternifolia. In the first experiment, the following substrates were tested: medium sand, Plantmax HT®, Golden-Mix® and vermiculite. In the second experiment, different IBA levels (0, 500, 1000 and 2000 mg L-1) were tested for two minicutting types (apical and medium). Minicuttings were prepared with 5 cm length and were kept in a greenhouse with intermittent mist; then, at 45 days after planting, we evaluated: the percentages of rooted minicuttings, with callus and non-responsive, the number of roots per minicutting and the length of the three longest roots. The substrate Golden-Mix® and the minicuttings collected from the apical part of the branch and treated with 500 mg L-1 IBA presented the largest rooting percentage and the best root system quality.
- Published
- 2012
18. Enraizamento e germinação na propagação de Pfaffia glomerata (Spreng.) Pedersen (ginseng-brasileiro) Rooting and germination in propagation of Pfaffia glomerata (Spreng.) Pedersen (ginseng-brasileiro)
- Author
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Silvana de Paula Quintão Scalon, Rosilda Mara Mussury, Geovana Thereza Silva da Rosa, Kácila Caetano Moraes, and Homero Scalon Filho
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ginseng-brasileiro ,giberelina ,fotoblastismo ,auxina ,propagação vegetativa ,estaquia ,Brazilian Ginseng ,gibberelin ,photoblastism ,auxin ,vegetative propagation ,cutting ,Agriculture (General) ,S1-972 - Abstract
Conduziu-se este trabalho, com o objetivo de avaliar a propagação sexuada e assexuada de Pfaffia glomerata (ginseng brasileiro). As sementes foram pré-embebidas por 24 horas em KNO3 1%; ácido giberélico 50, 100 e 200 mg L-1 ; emágua e as sementes que não receberam tratamento serviram como testemunha. A semeadura foi em placas de petri sobre duas folhas de papel de filtro e a incubação a 25ºC, sob iluminação constante e na ausência de luz. As estacas com º15 cm foram imersas durante 6 horas em IAA 250 e IBA 500 mg L-1, ácido bórico 1% e em água e plantadas em embalagem plástica, contendo terra+areia (1:1). O primeiro experimento foi conduzido em delineamento inteiramente casualizado em esquema fatorial 2 (níveis de luz) x 6 (tratamento de pré-embebição) em 4 repetições de 20 sementes. O segundo em DIC com 5 tratamentos, 4 repetições de 15 estacas por repetição. As sementes de ginseng brasileiro necessitam de tratamento de pré-embebição para acelerar a germinação, sendo a imersão em KNO3 o método mais eficiente, proporcionando 63% de germinação. Apresentam fotoblastismo neutro, com germinação média de 45%. As estacas de ginseng brasileiro imersas apenas em água apresentaram 100% de enraizamento, maior número de brotos (2,5) e maior comprimento de raiz (8,6 cm). A espécie apresenta potencial para ambos os métodos de propagação.The objective of this study was to evaluate sexual and asexual propagation of Pfaffia glomerata (Brazilian Ginseng). The seeds were pre-soaked for 24 hours in KNO3 1% , gibberellic acid 50, 100, 200 mg L-1 , and in water. Untreated seeds served as control. Sowing was accomplished in petri dishes on 2 sheets of filter paper, at 25ºC incubation, under constant illumination, and in the absence of light. The cuttings with º1,5 cm were immersed for 6 hours in IAA 250 and 500mg L-1, boric acid1% ,and in water. Soon after they were planted in plastic containers with soil + sand (1:1). The first experiment was in factorial design 2 (light levels) x 6 (pre-soak treatment) in 4 repetitions of 20 seeds per repetition. The second in ERD in 5 treatments, 4 repetitions of 15 cuttings per repetition. Brazilian Ginseng seeds need pre-soak treatment to accelerate germination. We found immersion in KNO3 the most efficient method, providing 63% germination. They presented neuter photoblastism with an average germination of 45%. The Brazilian Ginseng cuttings immersed in water presented 100% rooting, a higher number of sprouts (2,5), and greater length (8,6 cm). The species presents potential for both propagation methods.
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- 2009
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19. Effects of Indole-3-Butyric Acid (IBA) and rooting media on rooting and survival of air layered wax apple (Syzygium samarangense) CV Jambu Madu
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M. M. Khandaker, A. Saidi, N. A. Badaluddin, N. Yusoff, A. Majrashi, M. M. Alenazi, M. Saifuddin, Md. A. Alam, and K. S. Mohd
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Indoles ,vegetative propagation ,survivability ,Syzygium ,auxina ,fruit ,meio de enraizamento ,propagação vegetativa ,Plant Roots ,sobrevivência ,Culture Media ,rooting media ,wax apple ,maçã de cera ,fruto ,auxin ,General Agricultural and Biological Sciences - Abstract
The wax apple or jambu madu, is a non-climacteric tropical fruit from Myrtaceae family and widely cultivated in South East Asia. The limited availability of good quality seedlings of wax apple is the main problem to development of flourish it’s market share in the current fruit industry. Therefore, in order to produce good quality planting materials, a study aimed at optimizing propagation and adventitious rooting technique and survivability of wax apple air layer was conducted. In this study, four different levels of Indole-3-Butyric Acid (IBA) concentration (0, 1000, 1500 and 2000 mg L-1) and three rooting media (sphagnum moss, vermicompost and garden soil) were applied after removal of bark (phloem) on the shoot to determine the effect on rooting and survivability of the wax apple air layer under field conditions. The results showed that the wax apple shoots treated with 2000 mg L-1 IBA produced the significantly higher number of roots, increased length of root, diameter of branch, length of branch, number of leaf and leaf area of air layers. In addition, the highest chlorophyll content and stomatal aperture were recorded in 2000 mg L-1 IBA treatment compared to other treatments including control. Vermicompost medium was better than garden soil and sphagnum moss in respect of rooting and survivability of air layers. The results showed that the combination of 2000 mg L-1 IBA and vermicompost as rooting media give the best combination to root initiation, root number, root length and survival rate (100%) of wax apple air layers. From this study, it can be concluded that 2000 mg L-1 IBA and vermicompost treatment enhance the root initiation, early establishment and survivability of wax apple air layered under field conditions. Resumo A maçã de cera, ou jambu madu, é uma fruta tropical não climatérica da família Myrtaceae e amplamente cultivada no Sudeste Asiático. A disponibilidade limitada de mudas de macieira de boa qualidade é o principal problema para o desenvolvimento de sua participação de mercado na fruticultura atual. Portanto, com o objetivo de produzir materiais de plantio de boa qualidade, foi realizado um estudo visando otimizar a técnica de propagação e enraizamento adventício e a sobrevivência da camada aérea da cera de macieira. Neste estudo, quatro diferentes níveis de concentração de ácido indol-3-butírico (AIB) (0, 1000, 1500 e 2000 mg L-1) e três meios de enraizamento (musgo esfagno, vermicomposto e solo de jardim) foram aplicados após a remoção da casca (floema) na parte aérea para determinar o efeito no enraizamento e capacidade de sobrevivência da camada de ar da macieira em condições de campo. Os resultados mostraram que os brotos de macieira tratados com 2000 mg L-1 de AIB produziram significativamente maior número de raízes, maior comprimento de raiz, diâmetro de galho, comprimento de galho, número de folhas e área foliar das camadas aéreas. Além disso, o maior teor de clorofila e abertura estomática foram registrados no tratamento 2000 mg L-1 IBA em comparação com outros tratamentos, incluindo o controle. O meio de vermicomposto foi melhor do que o solo de jardim e o musgo esfagno em relação ao enraizamento e capacidade de sobrevivência das camadas aéreas. Os resultados mostraram que a combinação de 2000 mg L-1 de AIB e vermicomposto como meio de enraizamento proporciona a melhor combinação para iniciação radicular, número de raízes, comprimento radicular e taxa de sobrevivência (100%) das camadas aéreas de macieira. A partir deste estudo, pode-se concluir que 2.000 mg L-1 de AIB e tratamento com vermicomposto melhoram a iniciação radicular, o estabelecimento precoce e a capacidade de sobrevivência de macieiras em camadas de ar em condições de campo.
- Published
- 2021
20. Enraizamento de estacas herbáceas do abacateiro ‘Fuerte’ com diferentes períodos de imersão em solução de ácido indolbutírico = Rooting of herbaceous cuttings of ‘Fuerte’ avocado in solution of indol-butiric acid with different times of immersion
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Ubirajara Ribeiro Mindêllo Neto, Charles Allan Telles, Luiz Antonio Biasi, and Eduardo Peters
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Persea americana ,auxina ,propagação vegetativa ,auxin ,vegetative propagation ,Agriculture (General) ,S1-972 - Abstract
Este trabalho foi realizado na Embrapa, Canoinhas, Estado de Santa Catarina, com o objetivo de verificar o efeito de diferentes tempos de imersão em solução de ácido indolbutírico (AIB) no enraizamento de estacas herbáceas do abacateiro ‘Fuerte’. As estacas foram coletadas em 25/5/04 de plantas com um ano de idade e preparadas com diâmetroentre 4 a 6 mm e 10 cm de comprimento, permanecendo no terço superior duas folhas cortadas ao meio. Os tratamentos foram os seguintes: 5 e 30 segundos; 5 minutos; 1, 4, 8 e 12 horas em solução de 1000 mg L-1 de AIB. O delineamento experimental foi inteiramente casualizado, com sete tratamentos, quatro repetições e doze estacas por parcela. Após aaplicação do AIB, as estacas foram colocadas em bandejas de poliestireno expandido com 72 células, contendo turfa como substrato e levadas para enraizar em casa-de-vegetação com nebulização intermitente. Após 185 dias, foi realizada a avaliação do experimento. Os períodos de imersão rápida, por 5 e 30 segundos na solução de 1000 mg L-1 de AIB apresentaram-se mais favoráveis ao enraizamento das estacas, sendo superiores estatisticamente aos demais tempos de imersão. Os tempos de imersão superiores a uma hora apresentaram efeito fitotóxico. Recomenda-se para a estaquia herbácea de plantas juvenis do abacateiro ‘Fuerte’ a imersão por 30 segundos em solução de 1000 mg L-1 de AIB.This study was carried out at Embrapa, Canoinhas, state of Santa Catarina, Brazil, aiming to verify the effect of different times of immersion in solution of indol-butiric acid (IBA) in the rooting of herbaceous cuttings of ‘Fuerte’ avocado. The cuttings were collected on May 25th, 2004, from one-yearold plants and prepared with a 4-6mm diameter and 10cm long, with 2 remaining leaves cut in the middle, in the upper third part. The treatments were the following: 5 and 30seconds; 5 minutes; 1, 4, 8 and 12 hours in solution of 1000 mg L-1 of IBA. The experimental design was entirely randomized, with seven treatments, four replications and 12 cuttings for parcel. After the application of the IBA, the cuttings were placed in expanded polystyrene trays with 72 cells, with turf as substratum, and taken root in a greenhouse with intermittent mist. After 185 days the evaluation of the experiment was carried out. The fast immersion, for a period of 5 and 30 seconds in solution of 1000 mg L-1 of AIB, was statistically more favorable to the rooting of the cuttings, being statistically superior to the other times of immersion. The times of immersion longer than one hour presented phytotoxic effect. The 30-second immersion in a solution of 1000 mg L-1 of IBA is recommended for the herbaceous cuttings of young plants of the ‘Fuerte’ avocado.
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- 2007
21. Enraizamento de estacas de Pau-Brasil (Caesalpinia echinata Lam.) tratadas com ácido indol butírico e ácido naftaleno acético Rooting cuttings of Pau-Brasil (Caesalpinia echinata Lam.) treated with indole butyric acid and naphthalene acetic acid
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Laurício Endres, Paula Maria Guimarães Marroquim, Claudiana Moura dos Santos, and Neirevane Nunes Ferreira de Souza
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propagação vegetativa ,auxina ,Caesalpiniaceae ,vegetative propagation ,auxin ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
O pau-brasil (Caesalpinia echinata Lam.) tem grande valor cultural no Brasil e a sua propagação por sementes é dificultada pela rápida perda do poder germinativo delas. A estaquia pode ser usada para a produção de mudas de espécies florestais, principalmente quando existem algumas dificuldades de propagação por sementes. Este trabalho teve como objetivo caracterizar o efeito de concentrações e fontes de auxinas sobre o enraizamento de estacas de pau-brasil. Estacas com cerca de 12cm de comprimento e de um a dois pares de folhas foram tratadas na base com ácido indol butírico (AIB), ácido naftaleno acético (ANA) na forma líquida ou na forma de pó nas concentrações de 0, 1.250, 2.500, 5.000, 10.000mg L-1 ou mg Kg-1, respectivamente. As estacas foram transferidas para substrato contendo areia e mantidas sob nebulização (90-95% UR). Aos 120 dias de estaquia, foram avaliados a mortalidade, a retenção foliar, a formação de calo e a percentagem de estacas enraizadas. As estacas apresentaram índices de sobrevivência de até 70%. A formação de calos não foi relacionada com a concentração de auxinas utilizadas. O maior índice de enraizamento de estacas de pau-brasil, em torno de 16%, foi resgistrada com a utilização do ácido indolbutírico (AIB) e do ácido naftalenoacético (ANA) na concentração 2.500mg L-1. Os altos índices de sobrevivência e os baixos índices de enraizamento sugerem que as estacas devem permanecer por mais tempo sob nebulização, a fim de induzir o seu processo de enraizamento.The 'pau-brasil' tree (Caesalpinia echinata Lam.) have a high cultural value in Brazil and its seed propagation is very difficult because of its rapid losses of germination potential. Cuttings propagation has been considered as alternative method to propagate forest species that seed propagation is poor. The objectives of this study were to determine the effects of indole-3-butyric acid (IBA) and naphthalene acetic (NAA) acid on the adventitious root formation on stem cuttings of "pau-brasil". Cuttings with around 12cm length, with two pars of leaves, received a basal treatment of 0; 6,25; 12,50; 25 and 50mM IBA and NAA as solution form or 0, 1,250, 2,500, 5,000, 10,000mg Kg-1 as powder form. All cuttings were planted in cell trays containing sand and placed under greenhouse mist (90-95% relative humidity). After 120 days, cuttings were assessed for survival, foliar retention, callus formation and roots formation. There were high survival rate (up to 70%) of the cuttings. Callus formation was not correlated to auxin concentration. The utilization of liquid 25mM of IBA and NAA promoted the highest percentage of root formation, around 16%. The high survival rate associate with low percentage of root formation suggests that the cuttings may need longer time in greenhouse in order to stimulate root formation.
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- 2007
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22. Propagação de Dovyalis sp. pelo processo de mergulhia aérea Dovyalis sp propagation by air-layering process
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Eduardo José de Almeida, Natanael de Jesus, Rita Maria Devós Ganga, Antonio Carlos Benassi, Erivaldo José Scaloppi Junior, and Antonio Baldo Geraldo Martins
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Dovyalis ,alporquia ,auxina ,propagação vegetativa ,marcottage ,auxin ,vegetative propagation ,Plant culture ,SB1-1110 - Abstract
Com objetivo de avaliar a capacidade de propagação vegetativa de Dovyalis sp. pelo método da alporquia, realizou-se o presente trabalho. Foram utilizados ramos com cerca de 50 centímetros, os quais receberam os tratamentos: 0; 1.000; 3.000; 5.000 e 7.000 mg/kg de ácido indolbutírico (AIB) diluídos em lanolina, em duas épocas do ano: outono e primavera. No outono, considerou-se como subparcelas as localizações dos alporques por toda a planta, analisando-as como alporques da parte superior e inferior da copa e das faces norte e sul da planta. Na primavera, por insuficiência de ramos, apenas foram consideradas as doses com AIB. Nas épocas estudadas, o outono foi a que demonstrou maior percentagem de enraizamento e número de raízes (93,93 e 10,26 %, respectivamente). Obteve-se que o enraizamento independe da posição do ramo na planta, para esta época. O maior comprimento de raízes foi obtido na primavera.Aiming to stud the capacity of vegetative propagation of Dovyalis sp. by layering method, this work was developed. It was used branches of 50 cm length, which received the following treatments: 0; 1,000; 3,000; 5,000 and 7,000 mg/kg of indolbutiric acid (IBA) diluted in lanolina, in two periods: autumn and spring. In autumn the layering was distributed in superior and inferior part of the canopy and north and south sides of the plant. In spring, due to few branches it was just considered treatments with IBA. The autumn period demonstrated the highest percentage of root formation (93.93 %) and number of roots (10.26 %), and the root formation do not depend on branch position on the plant. The highest length of root was obtained in spring.
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- 2004
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23. Enraizamento de estacas de Tibouchina moricandiana var. vinacea em função da forma de aplicação e concentrações de AIB.
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de Oliveira Pereira, Mariane, Grabias, Jeniffer, Zuffelatto-Ribas, Katia Christina, and Navroski, Marcio Carlos
- Abstract
Tibouchina moricandiana Baill. var. vinacea Handro is a woody shrub, native to Brazil with ornamental potential. The objective of this study was to evaluate the feasibility of cutting the vegetative propagation of the species according to the application form and different concentrations of indole butyric acid (IBA). Softwood cuttings were treated with 0, 1,000 and 2,000 mg kg-1/mg L-1 of IBA in powder and solution form. After 56 days the treatments were evaluated for rooting, cuttings with callus, survival, mortality, leaf retention, new shoots, number of roots per cutting and root length. The rooting of stem cuttings of T. moricandiana was negatively influenced by the concentrations of IBA or by way of application. The species has a high strike rate (90.8%), demonstrating a species with potential for vegetative propagation through cuttings. The form of application and concentration of IBA influenced other variables. The use of 2,000 mg kg-1 IBA applied by talc demonstrated a decrease in the number of roots and provided the greatest number of and unrooted live cuttings. The length of the three longest roots per cutting was higher with the use of 1,000 mg L-1 or mg kg-1 of IBA. The use of IBA for the rooting of cuttings can be dispensed with, but can be used at a concentration of 1,000 mg-1 or mg kg-1 to increase the length and number of roots. [ABSTRACT FROM AUTHOR]
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- 2015
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24. Miniestaquia a partir de minicepas originadas por enxertia de pitangueira adulta.
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Lucía Peña, Martha, Zanette, Flávio, and Antonio Biasi, Luiz
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The aim of this study was to evaluate the viability of the minicutting technique in the vegetative propagation of Surinam cherry (Eugenia uniflora L.), through productivity and survival of ministumps, and rooting of minicuttings originating from grafting and treated with different concentrations of indolebutyric acid (IBA) in the successive collections. The ministumps were obtained through grafting (cleft graft) of scions collected from the selected tree onto rootstock formed by seeds collected from the same tree. To create the minigarden, the grafted seedlings were grown in root plugs and their sprouts were pruned, maintaining one pair of leaves on each sprout. From these ministumps, successive collections of sprouts (minicuttings) were made. A completely randomized experimental design was used in a 4 x 4 factorial arrangement (four periods of collection of minicuttings x four concentrations of IBA), with four replications and 20 minicuttings as an experimental unit. The survival rate of the ministumps was 100% after four successive collections of sprouts. In the higher temperature period was possible to carry out two collections of shoots. Mean yield was 2.4 minicuttings/ministump, 598.9 minicuttings/m2 in the first collection time, and 2.7 minicuttings/ministump, 681.1 minicuttings/ m2 in the second collection time. Mean yield was 384.4 minicuttings/m2 /month. It was adventitious rooting of less than 1.9%. The rooting of minicuttings from grafting of the Surinam cherry is not favored with the use of IBA. [ABSTRACT FROM AUTHOR]
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- 2015
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25. Presença de folhas e ácido indol butírico no enraizamento de estacas de quiri.
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Stuepp, Carlos André, Zuffellato-Ribas, Katia C., Wendling, Ivar, Koehler, Henrique S., and Bona, Cleusa
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Paulownia fortunei (Scrophulariaceae), native to East Asia, has a wide geographical distribution. In this work was studied the rooting of Paulownia fortunei cuttings, with and without leaves, collected in three seasons and treated with the application of indolebutyric acid (IBA). Cuttings were also compared for possible anatomical differences between seasons. Originated from current year shoots in autumn/2011, spring/2011 and summer/2012, two types of cuttings were prepared : one about 10-12 cm long, with bevel cut on the base and straight at the apex, with two leaves reduced to an area of 78.5 cm2; the other with the same specifications, with leaves completely removed. After disinfection, base of the cuttings was treated with IBA (0, 500, 1.000, 1.500 and 2.000 mg L-1). Planting was made in tubes of 110 cm3, with medium size vermiculite particles and carbonized rice hull (1:1) and installed in a greenhouse with intermittent mist. After 60 days it was verified that the absence of leaves favored the adventitious rooting in all the seasons, with the highest rooting percentage in autumn (12.75%). The application of IBA did not have influence on rooting of any type of cuttings. No anatomical differences were observed between the bases of cuttings collected in the studied seasons. [ABSTRACT FROM AUTHOR]
- Published
- 2015
26. Enraizamento de estacas de Chamaecyparis lawsoniana Parl. em cinco substratos com uso de ácido indolbutírico Rooting of Chamaecyparis lawsoniana Parl. cuttings with indolbutyric acid in five media
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Elisabeth Regina Tempel Stumpf, Paulo Roberto Grolli, and José Antônio Gonzales da Silva
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propagação vegetativa ,conífera ,auxina ,sistema radicular ,vegetative propagation ,conifer ,auxin ,root system ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
Com o objetivo de determinar o melhor substrato disponível na região para o enraizamento de estacas de Chamaecyparis lawsoniana Parl., utilizaram-se os substratos vermiculita fina, casca de arroz carbonizada, areia e as misturas casca de arroz carbonizada + vermiculita fina e areia + vermiculita fina (1:1 v/v). O experimento foi realizado em estufa do Departamento de Fitotecnia da Faculdade de Agronomia Eliseu Maciel/Universidade Federal de Pelotas, no período de maio a setembro de 1997, sob nebulização intermitente. Foram empregadas estacas apicais com 15cm de comprimento, submetidas ao tratamento com ácido indolbutírico (AIB) na concentração de 10.000ppm. Foram efetuadas as seguintes avaliações: número de raízes por estaca, peso da matéria seca das raízes, comprimento da maior raiz por estaca e percentual de estacas enraizadas. Os resultados mostraram que dos substratos testados e com a concentração de AIB utilizada, a vermiculita fina apresentou os melhores resultados, com 99% das estacas enraizadas, maior número raízes por estaca (15), maior comprimento de raiz (12cm) e maior peso da matéria seca das raízes (0,04g).To determine the best medium available in Pelotas, RS, for rooting of Chamaecyparis lawsoniana Parl. cuttings, the media fine vermiculite, carbonized rice hull, sand, carbonized rice hull + fine vermiculite and sand + fine vermiculite (1:1 v/v) were used. This experiment was carried out in a glass greenhouse with intermitent mist at the Plant Science Department of Faculdade de Agronomia Eliseu Maciel/Universidade Federal de Pelotas, from May to September 1997. Apical cuttings 15cm long were treated with indolbutyric acid (IBA) at 10.000ppm. The following evaluations were made: number of roots per cutting, weight of root dry matter, length of the longest root per cutting, and rooted cutting percentage. The results show that the vermiculite medium, with the IBA concentration utilized, is the most suitable for the rooting of C. lawsoniana cuttings, with 99% of rooting, greater number of roots per cutting (15), greater length of roots (12cm) and greater weight of root dry matter (0.04g).
- Published
- 1999
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27. Propagación clonal rápida de la mora 'Xingu' mediante mini esquejes
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Joaquini, Felipe Asprino, Biasi, Luiz Antonio, and Tofanelli, Mauro Brasil Dias
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Rubus sp ,Vegetative propagation ,Cutting ,Auxin ,Propagación vegetativa ,Auxina ,Propagação vegetativa ,Corte ,Estaquia - Abstract
Mini-cuttings have been used for several woody species, showing greater efficiency than propagation by conventional cuttings, due to their high yield of propagating material and higher percentage of rooting of mini-cuttings. This work was carried out to evaluate the efficiency of the mini-cutting technique for blackberry ‘Xingu’. The mini-garden was installed in pots from root cuttings. Four mini-cutting collections were carried out from 10/24/2019 to 12/03/2020, that received the following treatments: apical cuttings without IBA, median cuttings without IBA, median cuttings + 500 mg L-1 of IBA and median cuttings + 1000 mg L-1 of IBA. Mini-cutting was performed in a nebulization chamber and evaluated after 35 days. The yield of mini-cuttings increased from the first to the third collection, decreasing in the fourth collection, when the plants started to go into dormancy. The accumulated quantity of blackberry mini-cuttings 'Xingu' reached 916 m-2, in a period less than 5 months. The percentage of rooted cuttings was generally above 80%, with a significant difference among treatments only in the second collection. The median cuttings showed a greater number and length of roots than the apical ones and the application of IBA had little and varied effect on rooting. It is concluded that the mini-cutting is an efficient technique for the rapid and large-scale propagation of the blackberry 'Xingu' and can be carried out with all portions of the sprouts of the mini-tumps without the need for auxin. Se han utilizado mini-esquejes para varias especies leñosas, mostrando mayor eficiencia que la propagación por esquejes convencionales, debido a su alto rendimiento de material de propagación y mayor porcentaje de enraizamiento de los mini-esquejes. Este trabajo se llevó a cabo para evaluar la eficacia de la técnica de minicorte de mora 'Xingu'. El mini jardín se instaló en macetas a partir de esquejes de raíces. Entre el 24/10/2019 y el 03/12/2020, que recibió los siguientes tratamientos: esquejes apicales sin IBA, esquejes medianos sin IBA, esquejes medianos + 500 mg L-1 de IBA y esquejes medianos + 1000 mg L-1 de IBA. Se realizó un mini-corte en una cámara de nebulización y se evaluó después de 35 días. El rendimiento de mini-esquejes aumentó de la primera a la tercera colección, disminuyendo en la cuarta colección, cuando las plantas comenzaron a entrar en letargo. La cantidad acumulada de minicortes de mora 'Xingu' alcanzó los 916 m-2, en un período inferior a 5 meses. El porcentaje de esquejes enraizados fue generalmente superior al 80%, con una diferencia significativa entre tratamientos solo en la segunda colección. Las estacas medianas mostraron mayor número y longitud de raíces que las apicales y la aplicación de IBA tuvo poco y variado efecto sobre el enraizamiento. Se concluye que el minicorte es una técnica eficaz para la propagación rápida y a gran escala de la mora 'Xingu' y se puede realizar con todas las porciones de los brotes de las minicrafts sin necesidad de aplicación de auxinas. A miniestaquia tem sido utilizada para diversas espécies lenhosas, apresentando maior eficiência do que a propagação por estaquia convencional, devido seu elevado rendimento de material propagativo e maior porcentagem de enraizamento das miniestacas. Este trabalho foi realizado para avaliar a eficiência da técnica de miniestaquia para amoreira preta ‘Xingu’. O minijardim foi instalado em vasos a partir de estacas de raízes. Foram realizadas 4 coletas de miniestacas entre 24/10/2019 a 12/03/2020, as quais receberam os seguintes tratamentos: estacas apicais sem AIB, estacas medianas sem AIB, estacas medianas + 500 mg L-1 de AIB e estacas medianas + 1000 mg L-1 de AIB. A miniestaquia foi realizada em câmara de nebulização e avaliada após 35 dias. O rendimento de miniestacas aumento da primeira até a terceira coleta, diminuindo na quarta coleta, quando as plantas iniciaram a entrada em dormência. A quantidade acumulada de miniestacas de amoreira preta ‘Xingu’ atingiu 916 m-2, num período inferir a 5 meses. A porcentagem de estacas enraizadas foi em geral acima de 80%, ocorrendo diferença significativa entre os tratamentos apenas na segunda coleta. As estacas medianas apresentaram maior número e comprimento de raízes do que as apicais e a aplicação de AIB apresentou pouco e variado efeito sobre o enraizamento. Conclui-se que a miniestaquia é uma técnica eficiente para a propagação rápida e em larga escala da amoreira preta ‘Xingu’ e pode ser realizada com todas as porções das brotações das minicepas sem necessidade de aplicação de auxina.
- Published
- 2021
28. Enraizamento de estacas de lichieira tratadas com ácido indolbutírico e substratos.
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Koyama, Renata, de Assis, Adriane M., Cardoso, Carina, Moritz, Aline, Ortiz, Thiago A., and Roberto, Sérgio R.
- Abstract
The seedling production of lychee (Litchi chinensis Soon.) by cuttings, is a promising alternative because it allows the reduction of the period of juvenility and maintenance of the desirable characteristics of the stock plant. The aim of this study was to evaluate the rooting of semihard cuttings of litchi cv. Bengal treated with indole butyric acid (IBA) on different substrates. The experimental design was completely randomized arranged in a factorial 3 × 2 (three substrates: rice hulls, coconut fiber and vermiculite, and two IBA concentrations: 0 and 1,000 mg L-1), with five replicates of 10 cuttings per plot. It was found that there was no influence of the substrate and the concentration of IBA on the survival of cuttings. The rooted cuttings on coconut fiber showed higher leaf retention. The application of IBA on cuttings in carbonized rice husk and vermiculite resulted in the best average of rooting. For the dry mass of roots, the highest average has observed with vermiculite and IBA application. The use of rice hulls and vermiculite as substrates and the application of 1,000 mg L-1 IBA is the most appropriate for rooting of litchi 'Bengal' cuttings. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
29. Enraizamiento de esquejes de tallo Bacuri (Platonia insignis Mart.) tratados con Ácido Indolbutírico (AIB)
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Melo, Messias Euzébio de, Souza, Filipe Bittencourt Machado de, Freire, Ana Izabella, Barbosa, Ivan de Paiva, Cruz, Renata Ranielly Pedroza, Pereira, Ariana Mota, Melo, Carlos Cicinato Vieira, Pimentel , Róberson Machado, and Souza, Adriano Junio Moreira de
- Subjects
Vegetative propagation ,Woody branches ,Ramos lenhosos ,Ramas leñosas ,Propagación vegetativa ,Semi-woody branches ,Auxin ,Auxina ,Propagação vegetativa ,Ramos semilenhosos ,Ramas semi-leñosas - Abstract
Bacurizeiro (Platonia insignis Mart.) It is a species native to Africa, derived from the extraction of statistics from the Northeast of Pará and great regional interest. The experiment was carried out in a causalized open block design. Woody and semi-woody and standardized stem cuttings were collected, 15 cm long and 8 mm in diameter, without leaves, with horizontal cut without bevel and bevel at the base in the dosages. As they were treated with two AIB concentrations (3000 and 6000 mg L-1), in addition to the control where it used water. After the procedures, cuttings were buried at 2/3 of their length in an upright position. The cuttings were moistened daily, for 120 days, and those that were tested every 30 days. The following variables were evaluated: Average percentage of sprouts (PEST), average percentage of bud sprouts (PGB) and average number of roots (NR). As semi-hardwood cuttings are more indicated in relation to woody to be used in the propagation process of bacurizeiros. Rooting via propagation of cuttings occurred in greater proportion in the semi-hardwood branches and at the dosage of 6000 mg of L-¹, however the dosage of 3000 mg of L-¹ has already favored or rooted. Thus, the better the capacity to absorb water, nutrients, quantity of reserves, more balanced hormonal balance and, consequently, greater production of bacurizeiro. The objective of this work was to verify the potential of triggering cuttings caused by bacuri (woody and semi-hardwood) treated with different dosages of IBA (3000 and 6000 mg L-1) in addition to the control. Bacurizeiro (Platonia insignis Mart.) Es una especie nativa de África, derivada de la extracción de estadísticas del noreste de Pará y de gran interés regional. El experimento se realizó en un diseño de bloque abierto causalizado. Se recogieron esquejes leñosos y semi-leñosos y estandarizados de tallo, de 15 cm de largo y 8 mm de diámetro, sin hojas, con corte horizontal sin bisel y bisel en la base en las dosificaciones. Como fueron tratados con dos concentraciones AIB (3000 y 6000 mg L-1), además del control donde usaba agua. Después de los procedimientos, los esquejes fueron enterrados a 2/3 de su longitud en posición vertical. Los esquejes se humedecieron diariamente, durante 120 días, y los que se probaron cada 30 días. Se evaluaron las siguientes variables: porcentaje promedio de brotes (PEST), porcentaje promedio de brotes de brotes (PGB) y número promedio de raíces (NR). Como los esquejes de madera semidura están más indicados en relación con la madera para ser utilizados en el proceso de propagación de bacurizeiros. El enraizamiento a través de la propagación de esquejes se produjo en mayor proporción en las ramas de madera semidura y a la dosis de 6000 mg de L-¹, sin embargo, la dosis de 3000 mg de L-¹ ya ha favorecido o enraizado. Por lo tanto, mejor será la capacidad de absorber agua, nutrientes, cantidad de reservas, un equilibrio hormonal más equilibrado y, en consecuencia, una mayor producción de bacurizeiro. El objetivo de este trabajo fue verificar el potencial de desencadenar esquejes causados por bacuri (madera y madera semidura) tratados con diferentes dosis de IBA (3000 y 6000 mg L-1) además del control. O Bacurizeiro (Platonia insignis Mart.) é uma espécie frutífera nativa, oriundo do extrativismo das populações do Nordeste Paraense e desperta grande interesse regional. O experimento foi realizado em delineamento em blocos inteiramente causalizados. Foram coletadas estacas caulinares lenhosas e semilenhosas e padronizadas com 15 cm de comprimento e 8 mm de diâmetro, sem folhas, com corte horizontal no ápice e em bisel na base nas dosagens. As estacas foram tratadas com duas concentrações de AIB (3000 e 6000 mg L-1), além da testemunha onde utilizou-se água. Após os tratamentos, as estacas foram enterradas a 2/3 de seu comprimento em posição vertical. As estacas foram diariamente umedecidas, durante 120 dias, e as avaliações realizadas a cada 30 dias. As variáveis respostas avaliadas foram: Porcentagem média do número de estacas brotadas (PEST), porcentagem média de gemas brotadas (PGB) e o número médio de raízes (NR). As estacas semilenhosas são mais indicadas em relação lenhosas para serem utilizados no processo de propagação do bacurizeiro. O enraizamento via propagação de estacas ocorreu em maior proporção nos ramos semilenhosos e na dosagem de 6000 mg L-¹, porém a dosagem de 3000 mg L-¹ já favoreceu o enraizamento. Assim, melhor será a capacidade de absorção de água, nutrientes, acúmulo de reservas, balanço hormonal mais equilibrado e consequentemente, maior a produção do bacurizeiro. O objetivo do trabalho foi verificar o potencial de enraizamento de estacas caulinares de bacuri (lenhosa e semilenhosa) tratadas com diferentes dosagens de AIB (3000 e 6000 mg L-1) além da testemunha.
- Published
- 2020
30. Estaquia de Croton zehntneri Pax et Hoffm. com diferentes concentrações de ácido indol butírico.
- Author
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Medeiros Cunha, Cleyton Saialy, Silveira Maia, Sandra Sely, and Barbosa Coelho, Maria de Fatima
- Subjects
- *
EXPERIMENTAL design , *BUTYRIC acid , *VEGETATIVE propagation , *ROOTING of plant cuttings - Abstract
Croton zehntneri Pax et Hoffm. (canela de cunhã) is native to northeastern Brazil, has antioxidant, antinociceptive and antidepressant properties. The study of vegetative propagation is important because of the low seeds production and the existence of different chemotypes in the species. The aim of this study was to assess the effect of indole butyric acid (IBA) in plant propagation by cuttings of C. zehntneri. The experimental design was randomized blocks with six treatments and four replications of 10 cuttings. The treatments were zero concentrations, 1,000, 2,000, 3,000, 4,000 and 5,000mg L-1 IBA. It was analyzed the following characteristics: rooting percentage, root number per cutting, root length, shoot number, number of leaves, leaf dry mass and roots dry mass. The rooting percentage was higher for higher concentrations of IBA 3,000, 4,000 and 5,000mg L-1 (80, 90 and 100%). The percentage of rooting, root number, root length and number of leaves showed linear behavior in relation to concentrations of IBA, the higher the concentration the greater the value of the variable. The number of shoots decreased at higher concentration. The dry mass of roots was higher in pre-treatment with 4,000 and 5,000mg L-1 IBA (0.35g). Pre-treatment of cuttings of C. zehntneri with a solution of IBA at a concentration of 4,000mg L-1 for 10 seconds is recommended for vegetative propagation of the species. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
31. Enraizamiento de esquejes de Caña Agria (Cheilocostus speciosus. J. Koenig)
- Author
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Alicia Del Carmen Humanez Álvarez and Eder Dadner Durango Ballesteros
- Subjects
0106 biological sciences ,0301 basic medicine ,vegetative propagation ,lcsh:Biotechnology ,030106 microbiology ,01 natural sciences ,Cana agria ,03 medical and health sciences ,Cutting ,66 Ingeniería química y Tecnologías relacionadas/ Chemical engineering ,fiber bleaching ,010608 biotechnology ,lcsh:TP248.13-248.65 ,propagación vegetativa ,Cane ,Gynerium sagittatum ,Root formation ,brotes ,biology ,auxina ,enraizador ,General Medicine ,buds ,biology.organism_classification ,root ,blanqueo de fibras ,Horticulture ,6 Tecnología (ciencias aplicadas) / Technology ,auxin - Abstract
La Caña Agria (Cheilocostus speciosus. J. Koenig) es una planta floral decorativa, usada en la producción de artesanías derivadas de la Caña Flecha (Gynerium sagittatum. Aubl.), en los municipios de San Andrés de Sotavento y Tuchín, del departamento de Córdoba en Colombia, por sus propiedades para el blanqueamiento de fibras de Caña Flecha. Debido a la escasa presencia de plantas de Caña Agria en los resguardos indígenas de Túchin y San Andrés de Sotavento, se consideró necesario investigar nuevos métodos de propagación con el objetivo de conformar bancos de semillas que permitan aumentar la disponibilidad de material vegetal. Para ello, se seleccionaron esquejes de tallo de aproximadamente 11 cm de longitud, y se evaluó el efecto de tres concentraciones (0,0; 500 y 1000 mg·L-1 de ANA), sobre el enraizamiento. Los esquejes se colocaron en cada concentración por 10 días, y transcurrido el tiempo, se pasaron a bandejas con tierra en condiciones semicontroladas de temperatura y humedad. 30 días posteriores al trasplante, se establecieron los porcentajes de sobrevivencia y de enraizamiento de los esquejes. Como resultado, se encontró que los tratamientos con ANA aumentan la formación de raíces. El mejor tratamiento para enraizar esquejes fue el de 500 mg·L-1, con un porcentaje de enraizamiento del 96% a los 10 días después de la inducción. Por otra parte, Los tratamientos correspondientes a 0,0 mg·L-1 y 1000 mg·L-1 generaron porcentajes de enraizamiento del 24% y 70% respectivamente. El mayor número de raíces por planta con promedio de 8,76, se obtuvo en la solución 500 mg·L-1 de ANA. The Caña Agria (Cheilocostus speciosus, J. Koenig) is a decorative floral plant, used in the production of handicrafts derived from the Cane Flecha (Gynerium sagittatum, Aubl.), in the municipalities of San Andrés de Sotavento and Túchin, department of Córdoba in Colombia, for its properties for the fiber whitening of Caña Flecha. Due to the scarce presence of Caña Agria plants in the indigenous reserves of Túchin and San Andrés de Sotavento, it was considered necessary to investigate new methods of propagation with the objective of forming seed banks that allow to increase the availability of plant material. To do this, stem cuttings of approximately 11 cm in length were selected, and the effect of three concentrations (0.0, 500 and 1000 mg • L-1 of ANA) was evaluated on the rooting. The cuttings were placed in each concentration for 10 days, and after the time, they were transferred to trays with soil under semicontrolled conditions of temperature and humidity. 30 days after the transplant, the percentage of survival and rooting of the cuttings were established. As a result, it was found that ANA treatments increase root formation. The best treatment to root cuttings was the 500 mg • L-1, with a percentage of rooting of 96% at 10 days after induction. On the other hand, the treatments corresponding to 0.0 mg • L-1 and 1000 mg • L-1 generated percentages of rooting of 24% and 70% respectively. The highest number of roots per plant with an average of 8.76 was obtained in the 500 mg • L-1 ANA solution.
- Published
- 2017
32. Ácido indolbutírico na propagação de buxinho a partir de estacas caulinares
- Author
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Leandro Marcolino Vieira, Katia Christina Zuffellato-Ribas, Erik Nunes Gomes, and Silvano Kruchelski
- Subjects
0106 biological sciences ,rooting ,Callus formation ,Vegetative reproduction ,vegetative propagation ,ved/biology.organism_classification_rank.species ,Plant Science ,lcsh:Plant culture ,Horticulture ,Biology ,01 natural sciences ,Shrub ,Cutting ,Auxin ,lcsh:SB1-1110 ,040101 forestry ,chemistry.chemical_classification ,Buxus sempervirens L ,ved/biology ,auxina ,Sowing ,04 agricultural and veterinary sciences ,propagação vegetativa ,chemistry ,Shoot ,0401 agriculture, forestry, and fisheries ,Auxin, Buxus sempervirens L., rooting, vegetative propagation ,enraizamento ,auxin ,010606 plant biology & botany ,Sprouting - Abstract
Buxus sempervirens L., popularly known as boxwood, is a woody shrub widely used in gardening and landscaping. One of the most important factors for B. sempervirens commercial production is its propagation. The objective of this study was to evaluate the effect of indolebutyric acid (IBA) concentrations on the adventitious rooting of semihardwood stem cuttings of the species. Branches with new shoots were collected from stock plants with approximately 17 years of growth. Stem cuttings of six centimeters in length with two leaves in the upper region were made with a straight cut at the apex and a bevel cut at the base. Cuttings bases were immersed for 10 seconds in hydroalcoholic solutions (50% v v-1) with IBA at 0, 1500, 3,000 or 6,000 mg L-1. The cuttings were evaluated at 64 and 116 days after planting. Rooting, mortality, callus formation and sprouting percentages as well as root number and root length were measured. At 64 days, no significant percentage of rooting was observed in B. sempervirens stem cuttings and sprouting and callus formation were not significantly affected by the treatments. Keeping the cuttings in the greenhouse for 116 days led to rooting rates up to a 97.5%, with no statistical difference among treatments. Root lengths and root numbers did not differ as a function of treatments. The required period for B. sempervirens stem cuttings rooting is around 116 days; IBA application does not affect rooting, survival or sprouting of B. sempervirens stem cuttings. RESUMO Buxus sempervirens L., popularmente conhecido como buxinho, é um arbusto lenhoso amplamente utilizado na jardinagem e paisagismo. Um dos fatores mais importantes para a produção comercial de B. sempervirens é a sua propagação. O objetivo deste trabalho foi avaliar o efeito das concentrações de ácido indolbutírico (AIB) no enraizamento adventício de estacas semilenhosas da espécie. Ramos com brotações do ano foram coletados de plantas com aproximadamente 17 anos de idade. As estacas foram confeccionadas com 6 cm de comprimento, contendo 2 folhas na região apical, com corte reto no ápice e corte em bisel na base. A base das estacas foi imersa por 10 segundos em soluções hidroalcoólicas (50% v v-1) com AIB nas concentrações de 0, 1.500, 3.000 e 6.000 mg L-1. As estacas foram avaliadas aos: 64 e 116 dias após o plantio. Foram avaliadas as porcentagens de enraizamento, mortalidade, formação de calos e brotação, número de raízes e comprimento médio das raízes. Na primeira avaliação, aos 64 dias, não se observou porcentagem significativa de enraizamento nas estacas de B. sempervirens, e a formação de calos e brotações não foi significativamente afetada pelos tratamentos. A manutenção das estacas na casa de vegetação por 116 dias proporcionou uma taxa de enraizamento de até 97,5%, não havendo diferença estatística entre os tratamentos. O comprimento das raízes e o número de raízes não diferiram em função dos tratamentos. O período requerido para o enraizamento de estacas de B. sempervirens é de aproximadamente 116 dias. A aplicação de AIB não afeta o enraizamento, sobrevivência e brotação em estacas de B. sempervirens.
- Published
- 2018
33. Resgate vegetativo e sistema ex vitro de produção de mudas de Tibouchina sellowiana por estaquia e miniestaquia
- Author
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Rosimeri de Oliveira Fragoso, Dagma Kratz, Ivar Wendling, Carlos André Stuepp, Katia Christina Zuffellato-Ribas, and Francielen Paola de Sá
- Subjects
0106 biological sciences ,Vegetative reproduction ,vegetative propagation ,rejuvenation ,Biology ,01 natural sciences ,espécie ornamental ,rejuvenescimento ,lcsh:Agriculture ,Cutting ,Ornamental plant ,Botany ,lcsh:Agriculture (General) ,clonal mini-garden ,General Veterinary ,lcsh:S ,auxina ,04 agricultural and veterinary sciences ,lcsh:S1-972 ,ornamental species ,propagação vegetativa ,Shoot ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Animal Science and Zoology ,minijardim clonal ,auxin ,Agronomy and Crop Science ,010606 plant biology & botany ,Tibouchina sellowiana - Abstract
EnglishWe aimed to evaluate the rooting potential of Tibouchina sellowiana through the experiments: I - Cuttings from current-year shoots and epicormic shoots were submitted to IBA concentrations: 0, 500, 1000, 1500 and 2000mg L-1, in a factorial arrangement 2 x 5 (two types of cuttings x five IBA concentrations), with four replicates and 20 cuttings each; II - mini-stumps of Tibouchina sellowiana were submitted to successive shoots collecting during the four seasons, in a split-plot design, with five replications of ten mini-stumps per experimental unit. From the shoots of mini-stumps, mini-cuttings were produced, which were initially kept in greenhouse and later transferred to full sun, in a 4 x 5 factorial arrangement (four seasons x five collections per season), with four replicates of 12 mini-cuttings. Superiority of epicormic shoots cuttings was reported when compared to the current-year shoots, which showed the highest rooting and leaves maintenance (42.50% and 55.00%, respectively), eliminating the use of IBA. High survival of mini-stumps (over 80%) and the mini-cuttings production (170mini-cuttings m-2 month-1) in clonal mini-garden and the mini-cuttings survival (above 80%) in the greenhouse demonstrated the technical feasibility, with summer as the most appropriate time to collect mini-cuttings. Key words: auxin; clonal mini-garden; ornamental species; rejuvenation; vegetative propagation portuguesObjetivou-se avaliar o potencial de enraizamento de Tibouchina sellowiana por meio dos experimentos: I - Estacas provenientes de brotacoes do ano e epicormicas foram submetidas as concentracoes de IBA: 0, 500, 1000, 1500 e 2000mg L-1, em arranjo fatorial 2 x 5 (dois tipos de estacas x cinco concentracoes de IBA), com quatro repeticoes de 20 estacas cada; II - Minicepas de Tibouchina sellowiana foram submetidas a coletas sucessivas de suas brotacoes durante as quatro estacoes do ano, em modelo de parcelas subdivididas no tempo, com cinco repeticoes de dez minicepas por unidade experimental. A partir das brotacoes das minicepas foram produzidas miniestacas, as quais foram inicialmente mantidas em casa de vegetacao e posteriormente transferidas para pleno sol, em arranjo fatorial 4 x 5 (quatro estacoes do ano x cinco coletas por estacao), com quatro repeticoes de 12 miniestacas. Verificou-se superioridade das estacas de brotacoes epicormicas em comparacao as brotacoes do ano, as quais apresentaram o maior enraizamento e retencao foliar (42,50% e 55,00%, respectivamente), dispensando o uso de IBA. A elevada sobrevivencia das minicepas (superior a 80%) e producao de miniestacas (170 miniestacas m-2 mes-1) em minijardim clonal e sobrevivencia (acima de 80%) de miniestacas em casa de vegetacao demonstram a viabilidade da tecnica, sendo o verao a epoca mais adequada para coleta de miniestacas. Palavras-chave: auxina; minijardim clonal; especie ornamental; rejuvenescimento; propagacao vegetativa
- Published
- 2017
34. Rooting cuttings of sugar apple (Annona squamosa L.) with indolebutyric acid
- Author
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Tatiana de Lima Salvador, Péricles Gabriel Barros, Eurico Eduardo Pinto de Lemos, Taciana de Lima Salvador, and Rousseau da Silva Campos
- Subjects
vegetative propagation ,Vegetative reproduction ,Plant Science ,lcsh:Plant culture ,Cutting ,food ,Auxin ,AIB ,Botany ,tropical fruit ,lcsh:SB1-1110 ,Primordium ,chemistry.chemical_classification ,biology ,fungi ,fruteira tropical ,food and beverages ,Auxina ,Annona squamosa ,biology.organism_classification ,propagação vegetativa ,food.food ,chemistry ,Callus ,IBA ,Indolebutyric Acid ,Sugar-apple ,Agronomy and Crop Science ,Food Science - Abstract
A pinheira (Annona squamosa L.) apresenta boas perspectivas econômicas para a fruticultura brasileira, e sua propagação tem sido realizada comumente de forma seminífera; todavia, a propagação vegetativa de plantas selecionadas é o método mais indicado para a formação de pomares uniformes e produtivos. A estaquia apresenta vantagens que incluem a facilidade da técnica e seu baixo custo. A aplicação de auxinas sintéticas, como o ácido indolbutírico (AIB) na base da estaca, garante o suprimento exógeno, auxiliando no processo do enraizamento. Este trabalho objetivou estabelecer a concentração e o método de aplicação do AIB, visando ao estímulo ao enraizamento em estacas de pinheira, e estudar os tecidos que as formaram. Independentemente da concentração, a aplicação do AIB via pó foi significativamente mais eficiente para a formação das raízes do que na forma líquida. Os estudos anatômicos revelam que as raízes surgem de forma indireta, a partir do tecido caloso, formado na base das estacas. Sugar apple (Annona squamosa L.) presents good economic perspectives for the Brazilian fruit market and its propagation has been held commonly by seeds, however, the vegetative propagation of selected plants is the most appropriate method for the formation of uniform and productive orchards. The use of stem cuttings has advantages including ease of technique and its low cost. The application of synthetic auxins like indolebutyric acid (IBA) at the base of the cuttings ensures its exogenous supply, assisting in the process of rooting. The importance of knowledge of the internal structure of the stem cuttings can reveal the success or failure of rooting that, in some cases, occurs by the presence of anatomical barriers to the emergence of root primordia. This work aimed to establish the best concentration and the method of application of IBA, aimed at stimulate rooting in sugar apple cuttings, and to identify the tissues that they emerged. Independent of the concentration, application of the IBA via powder was significantly more efficient for the formation of roots than liquid form. Anatomical studies reveal that the roots arise indirectly from the callus tissue formed at the base of cuttings.
- Published
- 2014
35. Ácido indolbutírico no enraizamento de estacas de Langerstroemia indica em diferentes substratos
- Author
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de Lima, Daniela Macedo, Klein, Anderson Wiliam, Salla, Vanessa Padilha, Cardoso Moura, Amanda Pacheco, and Danner, Moeses Andrigo
- Subjects
Espécie ornamental ,Vegetative propagation ,Ornamental species ,Auxina ,Propagação vegetativa - Abstract
The objective of this work was to evaluate the effect of indolebutyric acid (IBA) on rooting of Langerstroemia indica cuttings in different substrates. Semi-hardwood cuttings with 7-8 cm were treated in alcoholic solutions of IBA (0, 1,000, 2,000 and 3,000 mg L-1) for 10 s and staked in plastic tubes containing commercial organic substrate or vermiculite. A completely randomized design in factorial arrangement 4 x 2 (4 concentrations x 2 substrates) was used. After 75 days we evaluated percentages of rooted cuttings, with shoots and necrosis, number and length of roots and number of shoots per cutting. IBA in concentration 1,000 mg L-1 promoted best rooting (65.63%) in vermiculite substrate (73.43%). O objetivo desse trabalho foi avaliar o efeito do ácido indolbutírico (AIB) no enraizamento de estacas de resedá (Langerstroemia indica) em diferentes substratos. Estacas semi-lenhosas de 7-8 cm foram tratadas em soluções de AIB (0, 1.000, 2.000 e 3.000 mg L-1) por 10 s e estaqueadas em tubetes contendo substrato orgânico comercial ou vermiculita. Utilizou-se delineamento experimental inteiramente casualizado, em arranjo fatorial 4 x 2 (4 concentrações x 2 substratos). Aos 75 dias avaliaram-se porcentagens de estacas enraizadas, com brotações e mortas, número e comprimento de raízes e número de brotações por estaca. O AIB na concentração 1.000 mg L-1 promoveu a melhor resposta de enraizamento (65,63%) em substrato vermiculita (73,43%).
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- 2016
36. Different propagules and auxin concentration on rooting of passionflower sandbank
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João Antonio Dutra Giles, Lívia Giro Mayrinck, Kristhiano Chagas, Edilson Romais Schmildt, Poliana Rangel Costa, and Rodrigo Sobreira Alexandre
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0106 biological sciences ,Vegetative reproduction ,Passifloraceae ,vegetative propagation ,lcsh:Biotechnology ,01 natural sciences ,Passiflora ,Cutting ,estaquia ,Dry weight ,Auxin ,lcsh:TP248.13-248.65 ,Botany ,lcsh:Agriculture (General) ,cutting ,Passiflora mucronata Lam ,chemistry.chemical_classification ,General Veterinary ,biology ,auxina ,04 agricultural and veterinary sciences ,biology.organism_classification ,lcsh:S1-972 ,propagação vegetativa ,Horticulture ,chemistry ,Shoot ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,General Agricultural and Biological Sciences ,Rootstock ,auxin ,010606 plant biology & botany - Abstract
Passiflora mucronata Lam. is resistant to Fusarim oxysporum f. passifloraceae and therefore can be used as rootstock for the species Passiflora edulis Sims. f. flavicarpa. The rootstocks in this case can be vegetatively propagated through cuttings. The objective of this study was to evaluate the effect of different types of cuttings and different concentrations of indole-3-butyric acid (IBA) on the adventitious rooting of P. mucronata. The experiments were arranged in a completely randomized design with four replications of 16 cuttings each. In Experiment 1, the treatments consisted of the different types of cuttings from mother plants grown in protected environment: shoot tips; two leaves and two nodes; one leaf and one node; leafless with two nodes; leafless with one node. In Experiment 2, the cuttings were taken from field plants and treated with the following IBA concentrations: 0; 1000 mg kg-1 (0.0036456 mol L-1); 1500 mg kg-1 (0.0054684 mol L-1) and 2000 mg kg-1 (0.0072912 mol L-1). The characteristics evaluated in the experiments 1 and 2 were: survival (1 and 2); budding (1 and 2); shoot number (2), shoot length (2), number of shoot leaves (2);shoot dry mass (2); callusing (1); rooting (1 and 2); root number (1 and 2), largest root length (1 and 2), root volume (1 and 2), and root dry mass (1 and 2). We found that, instead the shoot tips, the cuttings of the type leafless with two nodes are the best for P. mucronata rooting. Neither the cuttings from greenhouse plants nor the cuttings from field plants require growth regulators for rooting of P. mucronata cuttings of the type leafless with two nodes. RESUMO A espécie Passiflora mucronata Lam. é identificada como resistente ao Fusarim oxysporum f. passifloraceae e, portanto, pode ser utilizada como porta-enxerto para a espécie Passiflora edulis Sims. f. flavicarpa Deg., e a obtenção desses porta-enxertos pode dar-se por propagação vegetativa por estaquia. Objetivou-se, com este trabalho, avaliar diferentes tipos de estacas e diferentes concentrações do ácido indol-3-butírico (AIB), no enraizamento adventício de P. mucronata. Os experimentos foram realizados em delineamento inteiramente casualizado, com quatro repetições, de 16 estacas cada. No primeiro experimento, os tratamentos foram os diferentes tipos de estacas de plantas-matrizes de ambiente protegido: apical; de duas folhas e dois nós; de uma folha e um nó; sem folhas e dois nós; sem folhas e um nó. No segundo experimento, as estacas foram retiradas de campo e os tratamentos foram as concentrações de AIB: 0; 1000 (0,0036456 mol L-1); 1500 (0,0054684 mol L-1) e 2000 mg kg-1 (0,0072912 mol L-1). As características avaliadas no primeiro (1º) e no segundo (2º) experimentos foram: sobrevivência (1º e 2º); brotação (1º e 2º); número (2º), comprimento (2º), número de folhas (2º) e massa seca do broto (2º); calejamento (1º); enraizamento (1º e 2º); número (1º e 2º), comprimento (1º e 2º), volume (1º e 2º) e massa seca de raiz (1º e 2º). Recomenda-se usar estacas sem folhas e com dois nós, e não as apicais, para o processo de enraizamento de P. mucronata. O enraizamento das estacas sem folhas e com dois nós de P. mucronata dispensa o uso de reguladores de crescimento, tanto para as estacas provenientes de casa de vegetação quanto para as de campo.
- Published
- 2016
37. Época de coleta e tratamento com auxina na propagação de híbridos de tangerineira por estaquia
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Andrés Iván Prato Sarmiento, Paulo Vitor Dutra de Souza, and Sergio Francisco Schwarz
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0106 biological sciences ,Vegetative reproduction ,vegetative propagation ,fitorregulador ,plant growth regulator ,Colheita ,Biology ,01 natural sciences ,Mandarin Chinese ,Tangerina ,Cutting ,Auxin ,Botany ,Citrus spp ,lcsh:Agriculture (General) ,Hybrid ,chemistry.chemical_classification ,Regulador de crescimento ,Propagação vegetativa ,Auxina ,04 agricultural and veterinary sciences ,Grafting ,lcsh:S1-972 ,language.human_language ,Horticulture ,chemistry ,040103 agronomy & agriculture ,language ,0401 agriculture, forestry, and fisheries ,Indolebutyric Acid ,Rootstock ,Agronomy and Crop Science ,010606 plant biology & botany - Abstract
Época de coleta e tratamento com auxina na propagação de híbridos de tangerineira por estaquia A propagação por estaquia é uma alternativa para a obtenção de porta-enxertos de citros. A aplicação exógena de ácido indolbutírico (AIB), época de coleta das estacas e genótipos utilizados exercem efeito sobre o enraizamento e desenvolvimento de estacas de porta-enxertos de citros. Para estudar o efeito desses fatores, dois experimentos foram realizados. No primeiro, estacas semilenhosas dos híbridos de tangerineira ‘Sunki’ H49 e H77 foram coletadas no outono e final da primavera de 2013, sendo tratadas com AIB (0 mg L-1, 1.500 mg L-1 e 3.000 mg L-1). Em cada época de coleta, utilizou-se o esquema fatorial 2 x 3 (dois genótipos x três concentrações de AIB), sob delineamento em blocos casualizados. No segundo experimento, avaliou-se o desenvolvimento das estacas que enraizaram na primavera, até atingirem o ponto de enxertia. Neste caso, adotou-se o delineamento experimental inteiramente casualizado, com os híbridos H49 e H77. Os tratamentos com AIB influenciaram positivamente no enraizamento e número de raízes somente na coleta de outono, alcançando índice máximo de 23,3 % de estacas enraizadas. Na coleta do final da primavera, o enraizamento ficou próximo a 100 %, sendo desnecessário o uso de AIB. Cerca de 50 % das estacas dos híbridos de tangerineira ‘Sunki’ atingiram o ponto de enxertia 14 meses após a estaquia. Propagation by cuttings is an alternative for obtaining citrus rootstocks. The exogenous application of indolebutyric acid (IBA), cutting collection season and genotypes used may affect the rooting and vegetative growth of citrus rootstocks cuttings. Two experiments were conducted to study the influence of these factors. In the first one, semi-hardwood cuttings from the ‘Sunki’ mandarin hybrids H49 and H77 were collected in the fall and late spring of 2013 and treated with IBA (0 mg L-1, 1,500 mg L-1 and 3,000 mg L-1). For each collection season, a 2 x 3 (two genotypes x three IBA concentrations) factorial scheme was adopted, in a randomized blocks design. In the second experiment, the development of cuttings that rooted in the late spring was evaluated until grafting. In this case, a completely randomized experimental design was adopted, with the hybrids H49 and H77. The IBA treatments positively influenced rooting and number of roots only in the fall collection, peaking at 23.3 % of rooted cuttings. In the late spring collection, rooting was close to 100 %, with the IBA treatment being unnecessary. Around 50 % of cuttings from the ‘Sunki’ mandarin hybrids were ready for grafting at 14 months after cutting.
- Published
- 2016
38. Enraizamento de estacas de genótipos de Camellia sinensis L. em meio ácido, presença de alumínio e ácido indolbutírico
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LIMA, J.D., MORAES, W. da S., and SILVA, S.H. MODENESE-GORLA DA
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acidification ,tea plant ,vegetative propagation ,planta de chá ,auxina ,acidificação ,auxin ,propagação vegetativa - Abstract
RESUMO Experimentos foram conduzidos para avaliar o efeito do meio ácido e do alumínio, assim como para determinar a concentração mais apropriada de ácido indolbutírico (AIB) para o enraizamento de estacas de diferentes genótipos de Camellia sinensis L (planta de chá). Para tal, foram coletados ramos de plantas-matrizes em Pariquera-Açu-SP, Brasil, no inverno de 2012 e preparadas estacas semi-lenhosas, contendo uma gema e uma folha, que foram mantidas em viveiro com 70% de sombreamento. A irrigação do substrato foi feita com água e soluções contendo ácido fosfórico e sulfato de alumínio a pH 5,5, 4,5; 3,5. No primeiro experimento, o delineamento experimental foi o inteiramente casualizado em esquema fatorial 3 x 7, três genótipos (F 15, IAC 259 e Comum) e sete condições diferentes de enraizamento (vermiculita a pH 6,5, vermiculita acidificada com ácido fosfórico a pH 3,5; 4,5 e 5,5 ou vermiculita acidificada com sulfato de alumínio a pH 3,5; 4,5 e 5,5). No segundo experimento, o tratamento que promoveu o maior enraizamento no primeiro experimento (vermiculita acidificada com sulfato de alumínio a pH 3,5) foi combinado ao tratamento com AIB. O delineamento experimental utilizado foi o inteiramente casualizado em esquema fatorial 3 x 6, sendo três genótipos e seis concentrações de AIB (0, 2000, 4000, 6000, 8000 e 1000 mg L-1). A vermiculita acidificada com sulfato de alumínio a pH 3,5, combinada a aplicação de 10000 mg L-1 de AIB por 30 segundos, foi o tratamento mais adequado para o enraizamento de estacas semi-lenhosas dos genótipos F15, IAC 259 e Comum. ABSTRACT The experiments were carried out to evaluate the effect of medium acidic and aluminum, as well as determine the most suitable concentration of indolebutyric acid (IBA) for rooting cuttings of different genotypes of Camellia sinensis L (tea plant). Such, stems were collected from mother plants in Pariquera-Açu, São Paulo state, Brazil, in winter 2012 and prepared semi-hardwood cuttings, with one bud and one leaf, which were kept in a nursery with 70% of shading. Irrigation substrate was taken with water and solutions containing phosphoric acid and aluminum sulfate at pH 5.5, 4.5; 3,5. In the first experiment, the experimental design was completely randomized in a factorial scheme 3x7, three genotypes (F 15, IAC 259 and Comum) and seven different conditions of rooting (vermiculite at pH 6.5, acidified with phosphoric acid or aluminum sulfate vermiculite at pH 3.5, 4.5 and 5.5). In the second experiment, the treatment that promoted the highest rooting in the first experiment (vermiculite acidified with aluminum sulfate at pH 3.5) was combined with treatment with IBA The experimental design was completely randomized in a factorial scheme 3x6, three genotypes and six concentrations of IBA (0, 2.000, 4.000, 6.000, 8.000 and 10.000 mg L-1). Vermiculite acidified with aluminum sulphate to pH 3.5, combined application of 10.000 mg L-1 IBA for 30 seconds was the most appropriate treatment for cutting propagation of genotypes F15, IAC 259 and Comum. Vermiculite acidified with aluminum sulfate at pH 3.5, combined treatment with 10,000 mg L-1 IBA for 30 seconds, was the most suitable conditions for the rooting of cuttings Camellia sinensis L.
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- 2016
39. Rooting of Camellia sinensis L. in acid medium, the presence of aluminum and indolebutyric acid
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W. da S. Moraes, Jéssica Santos de Lima, S.H. Modenese-Gorla Da Silva, Universidade Estadual Paulista (Unesp), and Regional Vale do Ribeira
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Vegetative reproduction ,planta de chá ,lcsh:RS1-441 ,Aluminium sulfate ,Vermiculite ,lcsh:Pharmacy and materia medica ,Acidification ,chemistry.chemical_compound ,Cutting ,Vegetative propagation ,Auxin ,lcsh:Botany ,Camellia sinensis ,acidificação ,Sulfate ,Phosphoric acid ,Pharmacology ,chemistry.chemical_classification ,Tea plant ,Chemistry ,auxina ,propagação vegetativa ,lcsh:QK1-989 ,Horticulture ,Complementary and alternative medicine - Abstract
Made available in DSpace on 2018-12-11T17:02:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01. Added 1 bitstream(s) on 2021-07-15T15:02:51Z : No. of bitstreams: 1 S1516-05722016000100074.pdf: 713967 bytes, checksum: 96a8513d4c05a8e1cf31926dd7a6945c (MD5) The experiments were carried out to evaluate the effect of medium acidic and aluminum, as well as determine the most suitable concentration of indolebutyric acid (IBA) for rooting cuttings of different genotypes of Camellia sinensis L (tea plant). Such, stems were collected from mother plants in Pariquera-Açu, São Paulo state, Brazil, in winter 2012 and prepared semi-hardwood cuttings, with one bud and one leaf, which were kept in a nursery with 70% of shading. Irrigation substrate was taken with water and solutions containing phosphoric acid and aluminum sulfate at pH 5.5, 4.5; 3,5. In the first experiment, the experimental design was completely randomized in a factorial scheme 3×7, three genotypes (F 15, IAC 259 and Comum) and seven different conditions of rooting (vermiculite at pH 6.5, acidified with phosphoric acid or aluminum sulfate vermiculite at pH 3.5, 4.5 and 5.5). In the second experiment, the treatment that promoted the highest rooting in the first experiment (vermiculite acidified with aluminum sulfate at pH 3.5) was combined with treatment with IBA The experimental design was completely randomized in a factorial scheme 3×6, three genotypes and six concentrations of IBA (0, 2.000, 4.000, 6.000, 8.000 and 10.000 mg L-1). Vermiculite acidified with aluminum sulphate to pH 3.5, combined application of 10.000 mg L-1 IBA for 30 seconds was the most appropriate treatment for cutting propagation of genotypes F15, IAC 259 and Comum. Vermiculite acidified with aluminum sulfate at pH 3.5, combined treatment with 10,000 mg L-1 IBA for 30 seconds, was the most suitable conditions for the rooting of cuttings Camellia sinensis L. Universidade Estadual Paulista UNESP Câmpus Experimental de Registro, Rua Nélson Brihi Badur, n.430, Vila Tupy Agência Paulista de Tecnologia dos Agronegócios (APTA) Regional Vale do Ribeira, Rod. Regis Bittencourt, BR-116, Km 460, CP 122 Universidade Estadual Paulista UNESP Câmpus Experimental de Registro, Rua Nélson Brihi Badur, n.430, Vila Tupy
- Published
- 2016
40. Miniestaquia a partir de minicepas originadas por enxertia de pitangueira adulta
- Author
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Peña Peña, Martha Lucía, Zanette, Flávio, and Biasi, Luiz Antonio
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clonagem ,vegetative propagation ,cloning ,auxina ,collections ,Eugenia uniflora L ,auxin ,propagação vegetativa ,coletas - Abstract
The aim of this study was to evaluate the viability of the minicutting technique in the vegetative propagation of Surinam cherry (Eugenia uniflora L.), through productivity and survival of ministumps, and rooting of minicuttings originating from grafting and treated with different concentrations of indolebutyric acid (IBA) in the successive collections. The ministumps were obtained through grafting (cleft graft) of scions collected from the selected tree onto rootstock formed by seeds collected from the same tree. To create the minigarden, the grafted seedlings were grown in root plugs and their sprouts were pruned, maintaining one pair of leaves on each sprout. From these ministumps, successive collections of sprouts (minicuttings) were made. A completely randomized experimental design was used in a 4 x 4 factorial arrangement (four periods of collection of minicuttings x four concentrations of IBA), with four replications and 20 minicuttings as an experimental unit. The survival rate of the ministumps was 100% after four successive collections of sprouts. In the higher temperature period was possible to carry out two collections of shoots. Mean yield was 2.4 minicuttings/ministump, 598.9 minicuttings/m2 in the first collection time, and 2.7 minicuttings/ministump, 681.1 minicuttings/m2 in the second collection time. Mean yield was 384.4 minicuttings/m2 /month. It was adventitious rooting of less than 1.9%. The rooting of minicuttings from grafting of the Surinam cherry is not favored with the use of IBA., ResumoO objetivo deste trabalho foi avaliar os efeitos das épocas de coleta de miniestacas e da aplicação de concentrações do ácido indolbutírico (AIB) sobre o enraizamento das miniestacas de pitangueira (Eugenia uniflora L.). As minicepas foram obtidas usando a enxertia de garfos coletados da árvore selecionada sobre porta-enxertos formados por sementes coletadas da mesma árvore. Para formação do minijardim, as mudas enxertadas foram cultivadas em tubetes, tiveram suas brotações podadas, mantendo-se um par de folhas em cada brotação. Destas minicepas se promoveram coletas sucessivas de brotações (miniestacas). O delineamento experimental foi inteiramente casualizado, em arranjo fatorial 4 x 4 (quatro épocas de coleta de miniestacas x quatro concentrações de AIB), com quatro repetições e 20 miniestacas como unidade experimental. Obteve-se 100% de sobrevivência das minicepas após quatro coletas sucessivas de brotações. A produtividade média foi de 3,1 miniestacas/minicepa/coleta. Verificou-se enraizamento adventício inferior a 1,9% no verão e outono, e ausência de enraizamento na primavera. Observou-se menor índice de mortalidade (57,8%) sem uso de AIB. O verão é a época de coleta de maior produtividade das minicepas. Miniestacas provenientes das quatro coletas apresentam índices de enraizamento muito baixos quando não é nulo. O enraizamento de miniestacas de pitangueira não é favorecido com o uso de AIB.
- Published
- 2015
- Full Text
- View/download PDF
41. Growth regulators and substrates on rooting of Varronia curassavica Jacq
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A. D. R. Mendes, S.M.G. Rocha, T.H.S. Lacerda, and Ernane Ronie Martins
- Subjects
Pharmacology ,vegetative propagation ,Botany ,auxina ,lcsh:RS1-441 ,cuttings ,plantas medicinais ,propagação vegetativa ,lcsh:QK1-989 ,RS1-441 ,lcsh:Pharmacy and materia medica ,Pharmacy and materia medica ,estaquia ,Complementary and alternative medicine ,QK1-989 ,lcsh:Botany ,auxin ,medicinal plants - Abstract
A erva-baleeira, espécie medicinal anti-inflamatória, pode ser propagada por sementes, no entanto, o desenvolvimento de métodos eficientes para a propagação vegetativa possibilitará a uniformidade nas populações e a clonagem de plantas de interesse quanto aos aspectos agronômico e de composição química. O presente trabalho objetivou avaliar os efeitos do ácido naftaleno acético (NAA) e do ácido indolbutírico (IBA) e de diferentes substratos no enraizamento de estacas semi-lenhosas de erva-baleeira. Os experimentos foram conduzidos em casa de vegetação em Montes Claros em delineamento inteiramente casualizados. Para o experimento teste da influência das auxinas, as estacas foram submetidas a tratamentos com NAA e IBA nas concentrações de 0, 500, 1000, 2000, 3000 e 4000 mg L-1, e para o experimento dos substratos, cinco substratos foram avaliados (vermiculita expandida + casca de arroz parcialmente carbonizada (proporção de 1:1); vermiculita expandida; substrato orgânico comercial para hortaliça (Tropstrato HT ®); areia; solo + compostagem (proporção de 1:1)). Após 90 dias, para ambos os experimentos, foram avaliadas porcentagem de estacas enraizadas, de estacas mortas, de estacas vivas com calos, de estacas mortas com calos, número de raízes formadas por estaca e comprimento das três maiores raízes (cm). O regulador vegetal ideal para o enraizamento da espécie é o IBA, na concentração de 2.000 mg L-1, sendo que o NAA não é recomendado para a indução radicial em estacas erva-baleeira. O substrato vermiculita com casca de arroz carbonizada na proporção de 1:1 proporcionou maior porcentagem de enraizamento nas estacas da erva-baleira que o substrato solo + compostagem (1:1), os demais substratos não diferenciaram entre si. The Varronia curassavica Jacq., black sage, is an anti-inflammatory medicinal species that can be propagated by seed; however, the development of efficient methods for vegetative propagation will enable uniformity in the populations and cloning of plants of interest regarding the agronomic aspects and chemical composition. The aim of this study was to assess the effects of the naphthalene acetic acid (NAA) and indole butyric acid (IBA) and different substrates on the rooting of semi-hardwood cuttings of black sage. The experiments were conducted in a greenhouse at Montes Claros, in the State of Minas Gerais, Brazil, as a randomized complete design. For the experiment to test the influence of auxin, the cuttings were subjected to treatments with NAA and IBA at the concentrations of 0, 500, 1000, 2000, 3000 and 4000 mg L-1, and for the experiment with substrates, five substrates were evaluated (expanded vermiculite + carbonized rice husk (1:1); expanded vermiculite; commercial organic substrate for vegetable (Tropstrato ® HT); sand; soil + compost (1:1)). After 90 days, in both experiments, we evaluated the rooting percentage of cuttings, dead cuttings, live cuttings with callus, dead cuttings with callus, number of roots per cutting and length of the three longest roots (cm). The best plant growth regulator for the rooting of the species is the IBA at a concentration of 2.000 mg L-1, and the NAA is not recommended for the induction of roots in cuttings of black sage. Vermiculite with carbonized rice husk in the ratio of 1:1 showed greater percentage of rooting in cuttings of black sage than soil + composting (1:1); other substrates did not differ among themselves.
- Published
- 2014
42. Produção de mudas de penicilina (Alternanthera brasiliana (L.) Kuntze) via estaquia
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Tracz, V., Cruz-Silva, C.T.A., and Luz, M. Z.
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medicinal plant ,vegetative propagation ,Enraizamento ,auxina ,planta medicinal ,Rooting ,auxin ,propagação vegetativa - Abstract
A penicilina (Alternanthera brasiliana (L.) Kuntze), pertence à família Amaranthaceae e tem sido reconhecida por suas propriedades anti-inflamatória, analgésica, e antiviral. O trabalho teve como objetivo avaliar a concentração de ácido indolbutírico (AIB) mais adequada para a indução do enraizamento de estacas da penicilina. Foram selecionados ramos herbáceos de plantas matrizes, coletadas em novembro de 2010, para confecção de estacas com 6 cm de comprimento e 2 folhas apicais. As estacas foram desinfestadas através de solução de hipoclorito de sódio (0,5%) por 15 minutos. Em seguida, as estacas da penicilina tiveram suas bases imersas por 10 segundos em soluções de AIB nas concentrações de 0, 250, 500, 750 ou 1000 mg L-1, e foram plantadas em tubetes, sob irrigação em casa de vegetação. O delineamento experimental foi inteiramente casualizado, com 80 estacas por tratamento. Após 30 dias não foram observados resultados com diferenças significativas entre os tratamentos utilizados quanto ao enraizamento, crescimento das raízes, mortalidade, massa fresca e seca. No entanto, houve aumento do número de raízes das estacas tratadas nas concentrações mais altas de AIB (750 e 1000 mg L-1) quando comparadas ao controle e aos demais tratamentos. As porcentagens de enraizamento foram acima de 94% para essa espécie, podendo concluir que a propagação via estaquia é viável sem o uso de reguladores para induzir a formação de raízes dessa espécie, a qual pode ser considerada de fácil enraizamento. Penicillin (Alternanthera brasiliana (L.) Kuntze) belongs to the Amaranthaceae and has been recognized for its anti-inflammatory, analgesic and antiviral properties. This study aimed to evaluate the most appropriate concentration of indole butyric acid (IBA) to induce rooting of penicillin cuttings. We selected herbaceous branches, collected in November of 2010, to prepare 6 cm long cuttings with two apical leaves and disinfected them in solution of sodium hypochlorite (0.5%) for 15 minutes. Then, the penicillin cuttings had their bases immersed for 10 seconds in IBA at the concentrations of 0, 250, 500, 750 or 1000 mg L-1, planted in small plastic tubes, irrigated and maintained in a greenhouse. The experimental design was completely randomized, with 80 cuttings per treatment. After 30 days, we observed no significant different results among treatments on rooting, root growth, mortality, fresh and dry mass. There was an increase in the number of roots in the cuttings immersed in higher concentrations (750 and 1000 mg L-1) of IBA compared to the control and other treatments. The rooting percentages were above 94% for this species, and we could conclude that the propagation by cuttings is feasible without the use of regulators to induce root formation in this species, which can be considered as easy to root.
- Published
- 2014
43. Cutting propagation of blueberry in seasons of the year with indolebutyric acid and bottom heat
- Author
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Luiz Antonio Biasi and Marcos Aurélio Marangon
- Subjects
chemistry.chemical_classification ,rooting ,vegetative propagation ,Vegetative reproduction ,auxina ,Biology ,lcsh:S1-972 ,propagação vegetativa ,Cutting ,Horticulture ,Vaccinium ashei ,chemistry ,Auxin ,Callus ,Botany ,Animal Science and Zoology ,Cultivar ,lcsh:Agriculture (General) ,Indolebutyric Acid ,enraizamento ,auxin ,Agronomy and Crop Science ,Completely randomized design - Abstract
O objetivo deste trabalho foi avaliar os efeitos da aplicação de concentrações do ácido indolbutírico (AIB) e do aquecimento do substrato sobre o enraizamento de estacas caulinares das cultivares de mirtilo Bluebelle, Bluegem e Powderblue, nas quatro estações do ano. Utilizou-se o delineamento experimental inteiramente casualizado, com arranjo fatorial 4x5x2 (estações x concentrações de AIB x com e sem aquecimento do substrato), com 4 repetições e 20 estacas como unidade experimental. Foram avaliadas as percentagens de estacas enraizadas, mortas, vivas e com calo, e o número e o comprimento médio de raízes. As maiores percentagens de enraizamento foram 57,1% na 'Bluegem', no verão, 30% na 'Bluebelle', na primavera, com aquecimento, e 63% na 'Powderblue', no verão, com aquecimento. O AIB na concentração de 2.000 mg L-1 aumentou o enraizamento de estacas das cultivares Bluegem e Powderblue. O aquecimento do substrato melhora o enraizamento das estacas coletadas no outono e no inverno, em todas as cultivares e, também, das estacas coletadas no verão e na primavera, na cultivar Bluebelle. The objective of this work was to evaluate the effects of the application of concentrations of indolebutyric acid (IBA) and of bottom heat on rooting of stem cuttings of the blueberry cultivars Bluebelle, Bluegem, and Powderblue in the four seasons of the year. A completely randomized design was used, with a 4x5x2 factorial arrangement (seasons x concentrations of IBA x with and without heat), with 4 replicates and 20 stem cuttings as an experimental unit. The percentage of rooted cuttings, dead, alive and with callus, and the number and average length of the roots were evaluated. The highest rooting percentages were 57.1% for 'Bluegem' in summer, 30% for 'Bluebelle' in spring, with heating, and 63% for 'Powderblue' in summer with heating. IBA at the concentration of 2,000 mg L-1 increased the rooting of cuttings of the cultivars Bluegem and 'Powderblue'. Bottom heat increases the rooting of the cuttings harvested during autumn and winter in all cultivars, and also the cuttings harvested during summer and spring in the Bluebelle cultivar.
- Published
- 2013
44. Enraizamento de estacas de cafeeiro imersas em extrato aquoso de tiririca
- Author
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Dias, Jairo Rafael Machado, Silva, Edilaine D'Avila da, Gonçalves, Gerlandio Suassuna, Silva, Jose Ferreira da, Souza, Emanuel Fernando Maia de, Ferreira, Elvino, and Stachiw, Rosalvo
- Subjects
Cyperus rotundus L ,vegetative propagation ,Auxin ,Auxina ,Crescimento vegetativo ,Cofeea canephora ,coffee growing - Abstract
The cultivation of coffee trees plays an important role in Brazilian agriculture and economy. However, toincrease productivity healthy plants and vigorous seedlings are needed. Vegetative propagation is an excellent optionbecause the new plant maintains the genetic characteristics of the parent plant. To improve rooting the use of exogenoushormones is a technique widely used in this type of propagation. In this case, the hormones used are indole-butyric acid (IBA)and indole acetic acid (IAA). The purple nutsedge, a weed of difficult control, has high levels of IBA and IAA. The aim of thisstudy was to evaluate different concentrations and immersion times of aqueous extract of purple nutsedge roots in coffeeseedlings. The experimental design was completely randomized with four replicates and 10 cuttings per plot in a factorialscheme, which included four concentrations (0, 400, 800 and 1200 g L-1) of purple nutsedge extracts and two exposure times(20 and 120 seconds). After 100 days of the planting the following characteristics were analyzed: volume and number ofroots, plant height, number of leaves, and dry matter yield. The aqueous extract of C. rotundus showed no effect on thenumber and volume of roots. However the other evaluated characteristics were stimulated or inhibited by concentrations ofthe extract. The immersion time of the cuttings can induce roots growth of the cuttings, but 120 seconds of immersion showedsymptoms of toxicity. A cultura do cafeeiro ocupa papel de elevada importância na agricultura e economia brasileira. Entretanto, paraaumentar a produtividade recomenda-se a utilização de mudas sadias e de elevado vigor, sendo a propagação vegetativa umaexcelente opção, pois a nova planta mantém as características genéticas da planta-mãe. O uso de reguladores de crescimento éuma técnica necessária na propagação vegetativa. Nesse caso, os reguladores de crescimento usados são os ácidos indol-3-butírico (AIB) e indol-3-acético (AIA), que podem ser obtidos também de plantas que apresentam tais hormônios em suacomposição. A tiririca (Cyperus rotundus L.), espécie daninha de difícil controle, apresenta níveis elevados de AIB e de AIA.Objetivou-se, neste trabalho, avaliar quatro concentrações de extrato aquoso de tiririca e dois tempos de imersão no enraizamentode estacas de cafeeiro. Adotou-se o delineamento experimental inteiramente ao acaso, com quatro repetições e 10 estacas porparcela, em esquema fatorial 4 x 2. As concentrações do extrato utilizadas foram: 0; 400; 800 e 1200 g dm-3, nos tempos deimersão: 20 e 120 segundos. Após 100 dias do plantio das estacas foram analisados: volume de raízes, número de raízes, alturade plantas, número de folhas emitidas e matéria seca total. O extrato aquoso de tiririca não mostrou efeito sobre o número evolume de raízes, entretanto, as demais características avaliadas foram estimuladas ou inibidas pelas concentrações do extrato.O tempo de imersão das estacas pode induzir o crescimento de raízes, porém com 120 segundos de imersão apareceramsintomas de toxicidade.
- Published
- 2012
45. Estaquia de Croton zehntneri Pax et Hoffm. com diferentes concentrações de ácido indol butírico
- Author
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Sandra Sely Silveira Maia, Maria de Fatima Barbosa Coelho, and Cleyton Saialy Medeiros Departamento de Ciências Vegetais Cunha
- Subjects
chemistry.chemical_classification ,General Veterinary ,Plant propagation ,rooting ,Vegetative reproduction ,vegetative propagation ,caatinga ,auxina ,canelinha ,Biology ,biology.organism_classification ,Croton ,propagação vegetativa ,Cutting ,chemistry ,Micropropagation ,Dry weight ,Auxin ,Botany ,Shoot ,Animal Science and Zoology ,enraizamento ,auxin ,Agronomy and Crop Science - Abstract
Croton zehntneri Pax et Hoffm. (canela de cunhã) é nativa do nordeste do Brasil, tem efeito antioxidante e atividade antinociceptiva e antidepressiva. O estudo da propagação vegetativa é importante por causa da baixa produção de sementes e existência de diferentes quimiotipos da espécie. O objetivo do presente trabalho foi verificar o efeito de ácido indolbutirico (AIB) na produção de mudas por estacas de C. zehntneri. Os tratamentos foram as concentrações zero, 1.000, 2.000, 3.000, 4.000 e 5.000mg L-1 de AIB. O delineamento experimental foi em blocos ao acaso, com seis tratamentos e quatro repetições de 10 estacas por parcela. Foram analisadas aos 40 dias as seguintes características: porcentagem de enraizamento, número e comprimento das raízes por estaca, número de brotações, número de folhas, massa seca foliar e de raízes. A porcentagem de enraizamento foi maior nas maiores concentrações de AIB 3.000, 4.000 e 5.000mg L-1 (80, 90 e 100%). A porcentagem de enraizamento, o número e comprimento das raízes e o número de folhas apresentaram comportamento linear em relação às concentrações de AIB, quanto maior a concentração maior o valor da característica. O número de brotações diminuiu com a maior concentração de AIB. A massa seca das raízes foi maior nos pré-tratamentos com 4.000 e 5.000mg L-1 AIB (0,35g). O pré-tratamento das estacas de C. zehntneri com solução de AIB na concentração de 4.000mg L-1 por 10 segundos é recomendado para a propagação vegetativa. Croton zehntneri Pax et Hoffm. (canela de cunhã) is native to northeastern Brazil, has antioxidant, antinociceptive and antidepressant properties. The study of vegetative propagation is important because of the low seeds production and the existence of different chemotypes in the species. The aim of this study was to assess the effect of indole butyric acid (IBA) in plant propagation by cuttings of C. zehntneri. The experimental design was randomized blocks with six treatments and four replications of 10 cuttings. The treatments were zero concentrations, 1,000, 2,000, 3,000, 4,000 and 5,000mg L-1 IBA. It was analyzed the following characteristics: rooting percentage, root number per cutting, root length, shoot number, number of leaves, leaf dry mass and roots dry mass. The rooting percentage was higher for higher concentrations of IBA 3,000, 4,000 and 5,000mg L-1 (80, 90 and 100%). The percentage of rooting, root number, root length and number of leaves showed linear behavior in relation to concentrations of IBA, the higher the concentration the greater the value of the variable. The number of shoots decreased at higher concentration. The dry mass of roots was higher in pre-treatment with 4,000 and 5,000mg L-1 IBA (0.35g). Pre-treatment of cuttings of C. zehntneri with a solution of IBA at a concentration of 4,000mg L-1 for 10 seconds is recommended for vegetative propagation of the species.
- Published
- 2012
46. Substrates, indolebutyric acid levels and types of minicuttings on the rooting of tea tree (Melaleuca alternifolia Cheel)
- Author
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Giovana Bomfim de Alcantara, Fernanda Pinto, Luiz Antonio Biasi, Yohana de Oliveira, Marguerite Quoirin, and I. Guedes
- Subjects
Pharmacology ,Complementary and alternative medicine ,vegetative propagation ,Myrtaceae ,auxina ,auxin ,plantas medicinais ,óleo essencial ,propagação vegetativa ,essential oil ,medicinal plants - Abstract
Melaleuca alternifolia tem como produto principal o óleo essencial extraído das folhas devido às propriedades antifúngicas e antibacterianas. Pouco se tem relatado sobre a propagação desta espécie, sendo a miniestaquia uma alternativa para a propagação vegetativa de clones superiores visando à implantação de campo de produção. Este trabalho teve como objetivo avaliar o efeito de diferentes substratos, concentrações de AIB, e tipo de miniestaca, no enraizamento de Melaleuca alternifolia. No primeiro experimento foram testados os substratos, areia de granulometria média, Plantmax HT®, Golden-Mix® e vermiculita. No segundo experimento foram avaliadas diferentes concentrações de AIB (0, 500, 1000 e 2000 mg L-1), em dois tipos de miniestacas (apical e mediana). As miniestacas foram confeccionadas com 5 cm de comprimento, mantidas em casa de vegetação com nebulização intermitente, e, após 45 dias do plantio, foram avaliadas as porcentagens de miniestacas enraizadas, com calos e não responsivas, o número de raízes formadas por miniestaca e o comprimento das três maiores raízes (cm). O substrato Golden-Mix® e as miniestacas coletadas da porção apical do ramo submetidas ao tratamento com 500 mg L-1 de AIB apresentaram maior porcentagem de enraizamento e melhor qualidade do sistema radicial. Melaleuca alternifolia has as major product the essential oil extracted from its leaves due to its antifungal and antibacterial properties. There are scarce reports about the propagation of this species, and minicutting is an alternative for vegetative propagation of superior clones in order to establish a production field. This study aimed to evaluate the effect of different substrates, IBA levels and types of minicuttings on the rooting of Melaleuca alternifolia. In the first experiment, the following substrates were tested: medium sand, Plantmax HT®, Golden-Mix® and vermiculite. In the second experiment, different IBA levels (0, 500, 1000 and 2000 mg L-1) were tested for two minicutting types (apical and medium). Minicuttings were prepared with 5 cm length and were kept in a greenhouse with intermittent mist; then, at 45 days after planting, we evaluated: the percentages of rooted minicuttings, with callus and non-responsive, the number of roots per minicutting and the length of the three longest roots. The substrate Golden-Mix® and the minicuttings collected from the apical part of the branch and treated with 500 mg L-1 IBA presented the largest rooting percentage and the best root system quality.
- Published
- 2012
47. IBA e carboidratos no enraizamento de brotações procedentes de estacas radiciais de Rubus Spp
- Author
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João Paulo Tadeu Dias, João Domingos Rodrigues, Elizabeth Orika Ono, and Universidade Estadual Paulista (Unesp)
- Subjects
plant propagation ,vegetative propagation ,auxina ,Plant Science ,lcsh:Plant culture ,propagação vegetativa ,Amoreira-preta ,Blackberry ,propagação ,lcsh:SB1-1110 ,auxin ,Agronomy and Crop Science ,Food Science - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:48:15Z No. of bitstreams: 1 S0100-29452011000500093.pdf: 386740 bytes, checksum: 328269effd5ca768c1d86c229d2dcd4a (MD5) Made available in DSpace on 2013-08-22T18:48:15Z (GMT). No. of bitstreams: 1 S0100-29452011000500093.pdf: 386740 bytes, checksum: 328269effd5ca768c1d86c229d2dcd4a (MD5) Previous issue date: 2011-10-01 Made available in DSpace on 2013-09-30T19:38:03Z (GMT). No. of bitstreams: 2 S0100-29452011000500093.pdf: 386740 bytes, checksum: 328269effd5ca768c1d86c229d2dcd4a (MD5) S0100-29452011000500093.pdf.txt: 20689 bytes, checksum: e584a84de4f2c13192a97c86342e2309 (MD5) Previous issue date: 2011-10-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:10:13Z No. of bitstreams: 2 S0100-29452011000500093.pdf: 386740 bytes, checksum: 328269effd5ca768c1d86c229d2dcd4a (MD5) S0100-29452011000500093.pdf.txt: 20689 bytes, checksum: e584a84de4f2c13192a97c86342e2309 (MD5) Made available in DSpace on 2014-05-20T15:10:13Z (GMT). No. of bitstreams: 2 S0100-29452011000500093.pdf: 386740 bytes, checksum: 328269effd5ca768c1d86c229d2dcd4a (MD5) S0100-29452011000500093.pdf.txt: 20689 bytes, checksum: e584a84de4f2c13192a97c86342e2309 (MD5) Previous issue date: 2011-10-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Este trabalho objetivou verificar o efeito do ácido indol-3-butírico (IBA) e o teor de carboidratos na promoção do enraizamento em estacas de brotações de amoreira-preta. O experimento foi conduzido de junho a agosto de 2010, na UNESP de Botucatu - SP, sendo o delineamento em blocos casualizados, com seis concentrações de IBA e seis repetições, com a parcela constituída por 12 brotações. Os tratamentos constaram de seis concentrações de IBA, na forma de solução: T1= 0 mg L-1; T2= 250 mg L-1; T3= 500 mg L-1; T4= 1.000 mg L-1; T5= 2.000 mg L-1, e T6= 4.000 mg L-1 aplicados na base das brotações, durante dez segundos. Após 60 dias, foram avaliados: a porcentagem de enraizamento e o teor de carboidratos solúveis. As maiores concentrações de IBA inibiram o enraizamento das estacas de brotações. O aumento nos teores de açúcares da parte aérea com relação às raízes pode indicar que a parte aérea atuou como fonte de fotoassimilados e, dentre eles, açúcares solúveis, para promover o enraizamento das brotações. This study aimed to evaluate the effect of indolyl-3-butyric acid (IBA) and carbohydrates in promoting the rooting of blackberry shoot cuttings. This work was conducted from June to August 2010, at UNESP, Botucatu, São Paulo state, Brazil, under the randomized block design, with six concentrations of IBA and six replications of 12 shoot cuttings per plot. The treatments consisted of six concentrations of IBA, as a solution: T1= 0 mg L-1, T2= 250 mg L-1, T3= 500 mg L-1, T4=1000 mg L-1, T5 = 2000 mg L-1 and T6= 4000 mg L-1 applied on the basis of shoot cuttings for ten seconds. After 60 days,: the percentage of rooting and the soluble carbohydrates levels were evaluated. The highest concentrations of IBA inhibited root development and characteristics of the shoots cuttings. The higher sugar levels in shoot than in the roots may indicate that the shoot functioned as a source of assimilates, among them,soluble sugars, to promote the rooting of shoots. Universidade Estadual Paulista Universidade Estadual Paulista Instituto de Biociências Universidade Estadual Paulista Universidade Estadual Paulista Instituto de Biociências
- Published
- 2011
48. Substratos e concentrações de ácido indolibutírico no enraizamento de estacas de Passiflora cincinnata Mast
- Author
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ARAUJO, F. P. de, MOUCO, M. A. do C., ONO, E. O., RODRIGUES, J. D., FRANCISCO PINHEIRO DE ARAUJO, CPATSA, MARIA APARECIDA DO CARMO MOUCO, CPATSA, ELIZABETH ORIKA ONO, UNESP - INSTITUTO DE BIOCIÊNCIAS - BOTUCATU, and JOÃO DOMINGOS RODRIGUES, UNESP - INSTITUTO DE BIOCIÊNCIAS - BOTUCATU.
- Subjects
Fibra de coco ,Passiflora ,Plant cuttings ,Fibra ,Auxina ,Mistura de solo ,Ácido indolibutírico ,Porta-enxerto ,Vegetative propagation ,Melhoramento Vegetal ,Húmus de minhoca ,Propagação Vegetativa ,Maracujá-do-mato ,Substrato de Cultura - Abstract
O maracujá-do-mato ( Mast.) é uma espécie de ocorrência espontânea no semiárido, sendo uma importante alternativa em programas de melhoramento genético, ou usada como portaenxerto para espécies cultivadas, na solução dos problemas de ordem fitossanitária. Essa espécie vem sendo multiplicada por sementes, contudo, tem apresentado sérios problemas de dormência e segregação genética, o que torna desejável o uso da propagação assexuada. Procurou-se, neste trabalho, avaliar o potencial de enraizamento de estacas medianas de O experimento foi conduzido em câmara de nebulização com luminosidade de 50 %. O delineamento experimental utilizado foi o esquema fatorial 4 x 3 em blocos casualizados, com quatro concentrações de ácido indolibutírico (AIB) e três tipos de substrato, com 12 estacas por parcela e quatro repetições. As concentrações de AIB foram: 0; 500; 1000 e 1500 mg L e os substratos utilizados foram: Plantmax Hortaliças®; fibra de coco natural e a mistura de solo + fibra de coco + húmus de minhoca (proporção de 3:1:1 v/v). Aos 90 dias, foram avaliados em percentagem, as folhas persistentes, estacas vivas, estacas com “calos”, estacas com brotos, estacas enraizadas e comprimento dos brotos e da maior raiz.Omaracujá-do-mato pode ser propagado por estacas sem a utilização doAIBemsubstrato composto da mistura de solo + fibra de coco + húmus de minhoca. Made available in DSpace on 2018-10-18T01:01:17Z (GMT). No. of bitstreams: 1 Pinheiro2010.pdf: 86462 bytes, checksum: 36f87d62e522b07c48f0977ac7f9f188 (MD5) Previous issue date: 2011-04-13
- Published
- 2010
49. Enraizamento e germinação na propagação de Pfaffia glomerata (Spreng.) Pedersen (ginseng-brasileiro)
- Author
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Silvana de Paula Quintão Scalon, Kácila Caetano Moraes, Homero Scalon Filho, Geovana Thereza Silva da Rosa, and Rosilda Mara Mussury
- Subjects
General Veterinary ,vegetative propagation ,Chemistry ,fotoblastismo ,auxina ,Soil Science ,photoblastism ,propagação vegetativa ,Horticulture ,ginseng-brasileiro ,estaquia ,Brazilian Ginseng ,Animal Science and Zoology ,gibberelin ,auxin ,cutting ,Agronomy and Crop Science ,giberelina ,Food Science - Abstract
Conduziu-se este trabalho, com o objetivo de avaliar a propagação sexuada e assexuada de Pfaffia glomerata (ginseng brasileiro). As sementes foram pré-embebidas por 24 horas em KNO3 1%; ácido giberélico 50, 100 e 200 mg L-1 ; emágua e as sementes que não receberam tratamento serviram como testemunha. A semeadura foi em placas de petri sobre duas folhas de papel de filtro e a incubação a 25ºC, sob iluminação constante e na ausência de luz. As estacas com º15 cm foram imersas durante 6 horas em IAA 250 e IBA 500 mg L-1, ácido bórico 1% e em água e plantadas em embalagem plástica, contendo terra+areia (1:1). O primeiro experimento foi conduzido em delineamento inteiramente casualizado em esquema fatorial 2 (níveis de luz) x 6 (tratamento de pré-embebição) em 4 repetições de 20 sementes. O segundo em DIC com 5 tratamentos, 4 repetições de 15 estacas por repetição. As sementes de ginseng brasileiro necessitam de tratamento de pré-embebição para acelerar a germinação, sendo a imersão em KNO3 o método mais eficiente, proporcionando 63% de germinação. Apresentam fotoblastismo neutro, com germinação média de 45%. As estacas de ginseng brasileiro imersas apenas em água apresentaram 100% de enraizamento, maior número de brotos (2,5) e maior comprimento de raiz (8,6 cm). A espécie apresenta potencial para ambos os métodos de propagação. The objective of this study was to evaluate sexual and asexual propagation of Pfaffia glomerata (Brazilian Ginseng). The seeds were pre-soaked for 24 hours in KNO3 1% , gibberellic acid 50, 100, 200 mg L-1 , and in water. Untreated seeds served as control. Sowing was accomplished in petri dishes on 2 sheets of filter paper, at 25ºC incubation, under constant illumination, and in the absence of light. The cuttings with º1,5 cm were immersed for 6 hours in IAA 250 and 500mg L-1, boric acid1% ,and in water. Soon after they were planted in plastic containers with soil + sand (1:1). The first experiment was in factorial design 2 (light levels) x 6 (pre-soak treatment) in 4 repetitions of 20 seeds per repetition. The second in ERD in 5 treatments, 4 repetitions of 15 cuttings per repetition. Brazilian Ginseng seeds need pre-soak treatment to accelerate germination. We found immersion in KNO3 the most efficient method, providing 63% germination. They presented neuter photoblastism with an average germination of 45%. The Brazilian Ginseng cuttings immersed in water presented 100% rooting, a higher number of sprouts (2,5), and greater length (8,6 cm). The species presents potential for both propagation methods.
- Published
- 2009
50. Enraizamento de estacas de Pau-Brasil (Caesalpinia echinata Lam.) tratadas com ácido indol butírico e ácido naftaleno acético
- Author
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Claudiana Moura dos Santos, Laurício Endres, Paula Maria Guimarães Marroquim, and Neirevane Nunes Ferreira de Souza
- Subjects
Alternative methods ,chemistry.chemical_classification ,Root formation ,High survival rate ,General Veterinary ,biology ,vegetative propagation ,Callus formation ,auxina ,Caesalpiniaceae ,biology.organism_classification ,propagação vegetativa ,Cutting ,chemistry ,Germination ,Auxin ,Botany ,Animal Science and Zoology ,Caesalpinia ,auxin ,Agronomy and Crop Science - Abstract
O pau-brasil (Caesalpinia echinata Lam.) tem grande valor cultural no Brasil e a sua propagação por sementes é dificultada pela rápida perda do poder germinativo delas. A estaquia pode ser usada para a produção de mudas de espécies florestais, principalmente quando existem algumas dificuldades de propagação por sementes. Este trabalho teve como objetivo caracterizar o efeito de concentrações e fontes de auxinas sobre o enraizamento de estacas de pau-brasil. Estacas com cerca de 12cm de comprimento e de um a dois pares de folhas foram tratadas na base com ácido indol butírico (AIB), ácido naftaleno acético (ANA) na forma líquida ou na forma de pó nas concentrações de 0, 1.250, 2.500, 5.000, 10.000mg L-1 ou mg Kg-1, respectivamente. As estacas foram transferidas para substrato contendo areia e mantidas sob nebulização (90-95% UR). Aos 120 dias de estaquia, foram avaliados a mortalidade, a retenção foliar, a formação de calo e a percentagem de estacas enraizadas. As estacas apresentaram índices de sobrevivência de até 70%. A formação de calos não foi relacionada com a concentração de auxinas utilizadas. O maior índice de enraizamento de estacas de pau-brasil, em torno de 16%, foi resgistrada com a utilização do ácido indolbutírico (AIB) e do ácido naftalenoacético (ANA) na concentração 2.500mg L-1. Os altos índices de sobrevivência e os baixos índices de enraizamento sugerem que as estacas devem permanecer por mais tempo sob nebulização, a fim de induzir o seu processo de enraizamento. The 'pau-brasil' tree (Caesalpinia echinata Lam.) have a high cultural value in Brazil and its seed propagation is very difficult because of its rapid losses of germination potential. Cuttings propagation has been considered as alternative method to propagate forest species that seed propagation is poor. The objectives of this study were to determine the effects of indole-3-butyric acid (IBA) and naphthalene acetic (NAA) acid on the adventitious root formation on stem cuttings of "pau-brasil". Cuttings with around 12cm length, with two pars of leaves, received a basal treatment of 0; 6,25; 12,50; 25 and 50mM IBA and NAA as solution form or 0, 1,250, 2,500, 5,000, 10,000mg Kg-1 as powder form. All cuttings were planted in cell trays containing sand and placed under greenhouse mist (90-95% relative humidity). After 120 days, cuttings were assessed for survival, foliar retention, callus formation and roots formation. There were high survival rate (up to 70%) of the cuttings. Callus formation was not correlated to auxin concentration. The utilization of liquid 25mM of IBA and NAA promoted the highest percentage of root formation, around 16%. The high survival rate associate with low percentage of root formation suggests that the cuttings may need longer time in greenhouse in order to stimulate root formation.
- Published
- 2007
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