10 results on '"potencial fisiológico de sementes"'
Search Results
2. Low-cost system for multispectral image acquisition and its applicability to analysis of the physiological potential of soybean seeds
- Author
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Júlia Martins Soares, André Dantas de Medeiros, Daniel Teixeira Pinheiro, Jorge Tadeu Fim Rosas, Laércio Junio da Silva, Daniel Lucas Magalhães Machado, and Denise Cunha Fernandes dos Santos Dias
- Subjects
Glycine max L. ,potencial fisiológico de sementes ,ImageJ ,Processamento de imagens ,Agriculture (General) ,S1-972 - Abstract
The use of multispectral images has great potential to assess seed quality and represents a significant technological advance in the search for fast and non-destructive analysis techniques. However, the devices currently available are expensive. Thus, this study aimed to propose a low-cost method for acquisition and processing of multispectral images of soybean seeds and to evaluate their potential for rapid determination of seed physiological potential. The study was conducted in three steps: implementation of the multispectral image acquisition system, development of an algorithm for automatic image processing, and evaluation of the relationship between the data obtained through image analysis and the results of standard tests used to evaluate seed physiological potential. A total of 43 variables were assessed, eight related to seed physiological potential (germination and vigor) and 35 obtained from the analysis of the multispectral images. Of the variables obtained from multispectral images, 21 were related to pixel values in the images in the different bands evaluated (green, red, and infrared) and 14 associated with seed morphometric characteristics. The proposed system is efficient in obtaining multispectral images and the algorithm developed was efficient to extract morphometric characteristics and pixel information from the images. The parameters obtained from the NIR spectrum region showed a good relationship with the physiological potential of soybean seeds.
- Published
- 2022
- Full Text
- View/download PDF
3. SEED AND SEEDLINGS QUALITY OF Anadenanthera colubrina (Vell.) Brenan HARVESTED IN PARANÁ STATE, BRAZIL.
- Author
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Fortado Vera Cruz, Maria Soraia, de Matos Malavasi, Marlene, Pinguelli Ristau, Ana Carolina, Contro Malavasi, Ubirajara, Lopes Dranski, João Alexandre, and Braz, Hannah
- Subjects
- *
SEEDLING quality , *SEED quality , *HARVESTING , *ANADENANTHERA , *SEED harvesting , *SEEDLINGS - Abstract
The place of harvest influences the quality of the seeds and, consequently, the quality of the seedlings formed. Thus, the work aimed to quantify the influence of harvesting place on the physiological potential of seeds and on the quality of A. colubrina seedlings. The lots refer to the seed harvesting locations, Marechal Cândido Rondon (MCR), Diamante D’Oeste (DO) and Santa Helena (SH). The design was completely randomized. For seed quality, the thousand weight, percentage, average germination time (AGT) and germination speed index (GSI), dry seedling mass (DSM) and respiration rate (RESP) were evaluated. For seedling quality, height, stem diameter, shoot, root and total dry biomass, Dickson quality index, and root electrolyte loss were evaluated. For the DO+SH, the unfolding of the correlations indicated the AGT as the most influential characteristic, both with a direct and indirect effect on the basic variables, that is, seedling quality. Additionally, it is noteworthy that the characteristics evaluated stem diameter, total dry mass of the plant and root electrolyte loss, proved to be good indicators of the quality of seedlings of A. colubrina, presenting themselves quite responsive in the correlation analysis. The place of harvest influenced the quality of seeds and seedlings of Anadenanthera colubrina, with the distinction of origins into two groups: seed lot from MCR and DO+SH. Germination attributes contributed to explain the effects of seed lot quality on seedling quality and can be used to select better quality seeds and seedlings. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
4. Low-cost system for multispectral image acquisition and its applicability to analysis of the physiological potential of soybean seeds
- Author
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Júlia Martins Soares, André Dantas de Medeiros, Daniel Teixeira Pinheiro, Jorge Tadeu Fim Rosas, Laércio Junio da Silva, Daniel Lucas Magalhães Machado, and Denise Cunha Fernandes dos Santos Dias
- Subjects
Glycine max L ,seed physiological potential ,Glycine max ,potencial fisiológico de sementes ,Processamento de imagens ,Agronomy and Crop Science ,ImageJ ,image processing - Abstract
The use of multispectral images has great potential to assess seed quality and represents a significant technological advance in the search for fast and non-destructive analysis techniques. However, the devices currently available are expensive. Thus, this study aimed to propose a low-cost method for acquisition and processing of multispectral images of soybean seeds and to evaluate their potential for rapid determination of seed physiological potential. The study was conducted in three steps: implementation of the multispectral image acquisition system, development of an algorithm for automatic image processing, and evaluation of the relationship between the data obtained through image analysis and the results of standard tests used to evaluate seed physiological potential. A total of 43 variables were assessed, eight related to seed physiological potential (germination and vigor) and 35 obtained from the analysis of the multispectral images. Of the variables obtained from multispectral images, 21 were related to pixel values in the images in the different bands evaluated (green, red, and infrared) and 14 associated with seed morphometric characteristics. The proposed system is efficient in obtaining multispectral images and the algorithm developed was efficient to extract morphometric characteristics and pixel information from the images. The parameters obtained from the NIR spectrum region showed a good relationship with the physiological potential of soybean seeds. The use of multispectral images has great potential to assess seed quality and represents a significant technological advance in the search for fast and non-destructive analysis techniques. However, the devices currently available are expensive. Thus, this study aimed to propose a low-cost method for acquisition and processing of multispectral images of soybean seeds and to evaluate their potential for rapid determination of seed physiological potential. The study was conducted in three steps: implementation of the multispectral image acquisition system, development of an algorithm for automatic image processing, and evaluation of the relationship between the data obtained through image analysis and the results of standard tests used to evaluate seed physiological potential. A total of 43 variables were assessed, eight related to seed physiological potential (germination and vigor) and 35 obtained from the analysis of the multispectral images. Of the variables obtained from multispectral images, 21 were related to pixel values in the images in the different bands evaluated (green, red, and infrared) and 14 associated with seed morphometric characteristics. The proposed system is efficient in obtaining multispectral images and the algorithm developed was efficient to extract morphometric characteristics and pixel information from the images. The parameters obtained from the NIR spectrum region showed a good relationship with the physiological potential of soybean seeds.
- Published
- 2023
5. Digital images of seedling for evaluating coffee seed vigor.
- Author
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Trujillo, Heiber Andres, Gomes-Junior, Francisco Guilhien, and Cicero, Silvio Moure
- Subjects
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DIGITAL images , *COFFEE beans , *VITALITY , *SEEDS , *SEEDLINGS , *IMAGE analysis - Abstract
The digital image analysis of seedlings has become largely employed in seed quality-control programs due to its feasibility, objectivity and fast results. Despite these advantages, no studies have yet demonstrated the efficiency of this technique for analyzing coffee seed vigor. The present study aimed at evaluating the efficiency of the Seed Vigor Imaging System (SVIS®) in determining the vigor of coffee seeds (Coffea arabica L.) from digital images of seedlings. Also, the results of these analyses were contrasted with conventional vigor tests. Six seed lots from each cultivar, Bourbon and Catucaí 20/15, were used. The research was conducted in two experimental times, and the seed vigor was determined by the tests of first germination count, accelerated aging, electrical conductivity, primary root protrusion speed, as well as by the analysis of scanned images of seedlings, made possible by the SVIS® software. For the Bourbon and Catucaí 20/15 cultivars, the SVIS® analysis was able to discriminate lots of both high and low vigor (vigor indexes of 317 to 752, and 181 to 703, respectively). A similar outcome was obtained from the conventional tests appraised in this research. Eventually, it was possible to conclude that the digital analysis of 20-day-old seedlings by SVIS® is an efficient method to evaluate coffee seed vigor. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
6. Producción y calidad fisiológica de semillas de linaje de maíz em función de las dosis de nitrógeno y la humedad em la cosecha
- Author
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Guedes, Thâmara de Mendonça, Melo, Hyrandir Cabral de, Kran, Cássio da Silva, Vale, Luís Sérgio Rodrigues, Santos, Wanderson Moreira dos, and Oliviera, Eliaby José de
- Subjects
Adubação nitrogenada ,Seed moisture degree ,Fertilización nitrogenada ,Linhagens ,Strains ,Potencial fisiológico de sementes ,Zea mays ,Nitrogen fertilization ,Grau de umidade de sementes ,Contenido de humedad de la semilla ,Cepas ,Potencial fisiológico de la semilla ,Seed physiological potential - Abstract
An initial study on maize lines is essential to obtain hybrids. In the selection of strains, several parameters are observed to reach the crossing and commercialization. Some authors state that adequate nitrogen fertilization is needed to increase the corn economic productivity, considering N is the most required macronutrient by the crop. This nutrient performs diverse metabolic functions in seeds, contributing to their formation and nutritional reserve. Therefore, this paper aimed to evaluate the production and quality of irrigated corn lineage seeds under nitrogen doses and moisture levels at harvest time. The experiment was carried in the experimental area of the Goiano Federal Institute, Ceres Campus, Goiás State (GO), Brazil, and in its SAL. The experimental design was in randomized block, split plots, twenty treatments with five nitrogen rates (50, 110, 170, 230, and 290 Kg ha-1), and harvest took place with four moisture degrees (15%, 25%, 35%, and 45%). A maize line the PGAG10051L. Field and laboratory tests were carried out. The studied strain tolerates low nitrogen availability and has high efficiency in its use. The strain responds positively to the nitrogen increase in relation to germination percentage with better results above 170 Kg of N ha-1. The strain has high capacity to accumulate biomass in caryopsis even with low moisture content. Seeds harvested with 25% moisture showed satisfactory results for germination and vigor. It is recommended to apply 170 Kg de N ha-1 nitrogen dose split in four times for topdressing the corn lineage studied in this paper. Para obtener híbrido es fundamental um estúdio inicial realizado em líneas de máiz. Em la selección de cepas se observan vários parâmetros para llegar al cruce y comercialización. Para aumentar la productividad del máiz, algunos autores afirman que es necessária uma adecuada fertilización com nitrógeno, siendo el N el macronutriente más requerido por el cultivo. Realiza varias funciones metabólicas em las semillas, contribuyendo a su formación y reserva nutricional. Este trabajo tuvo como objetivo evaluar la producción y calidad de semillas de linaje de máiz irrigadas em función de las tasas de nitrógeno y los nivelesde humedad en la cosecha. El experimento se llevó a cabo en el área experimento se llevó a cabo em el área experimental del IF Goiano – Campus Ceres y en el LAS. El diseño experimental fue em bloques al azar, com cinco dosis de nitrógeno (50, 110, 179, 230 y 290 Kg ha-1) y cosecha com cuatro grados de humedad (15, 25, 35 y 45%). Se utilizo la cepa de maíz PGAG10051L. Se realizaron pruebas de campo y de laboratório. La cepa estudiada tolera baja disponibilidad de nitrógeno, presenta alta eficiência en su uso y responde positivamente al aumento de nitrógeno em términos de porcentaje de germinación, com mejores resultados por encima de 170 Kg N ha-1. La cepa tiene uma alta capacidad para acumular biomasa en cariópside incluso con bajo contenido de humedad. Las semillas cosechadas con um 25% de humedad mostraron resultados satisfactorios en cuanto a germinación y vigor. Se recomenda aplicar la dosis de 170 Kg N ha-1 de nitrógeno dividido en cuatro veces para el topdressing del linaje de maíz estudiado. Para a obtenção de híbridos, um estudo inicial feito em linhagens de milho é primordial. Na seleção das linhagens, são observados diversos parâmetros para se chegar ao cruzamento e comercialização. Para aumentar a produtividade do milho, alguns autores afirmam ser necessária uma adubação nitrogenada adequada, sendo o N o macronutriente mais requerido pela cultura. Desempenha várias funções metabólicos nas sementes, contribuindo para sua formação e para sua reserva nutricional. Este trabalho teve como objetivo avaliar a produção e a qualidade de sementes de linhagem de milho irrigado em função de doses de nitrogênio e graus de umidade na colheita. O experimento foi conduzido na área experimental do IF Goiano - Campus Ceres e no LAS. Utilizou-se o delineamento experimental em blocos casualizados, sendo cinco doses de nitrogênio (50, 110, 170, 230 e 290 kg ha -1) e colheita com quatro graus de umidade (15, 25, 35 e 45%). Foi utilizada a linhagem de milho PGAG10051L. Realizaram-se testes de campo e laboratório. A linhagem estudada tolera baixa disponibilidade de nitrogênio, tendo alta eficiência no seu uso e responde positivamente ao aumento de nitrogênio quanto ao percentual de germinação, com melhores resultados acima de 170 kg N ha-1. A linhagem tem alta capacidade de acúmulo de biomassa nas cariopses mesmo com baixo teor de umidade. Sementes colhidas com 25% de umidade apresentaram resultados satisfatórios de germinação e vigor. Recomenda-se aplicar a dose 170 kg ha-1 de nitrogênio parcelada em quatro vezes para adubação em cobertura da linhagem de milho estudada.
- Published
- 2021
7. ENVELHECIMENTO ACELERADO DE SEMENTES DE PINHÃO-MANSO.
- Author
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Pereira, Márcio Dias, Filho, Sebastião Martins, and Laviola, Bruno Galvêas
- Subjects
JATROPHA ,SEED aging ,GERMINATION ,SEED viability ,SEED stratification - Abstract
Copyright of Agricultural Research in the Tropics / Pesquisa Agropecuária Tropical is the property of Pesquisa Agropecuaria Tropical 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
- 2012
- Full Text
- View/download PDF
8. Digital images of seedling for evaluating coffee seed vigor
- Author
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Silvio Moure Cicero, Heiber Andres Trujillo, and Francisco Guilhien Gomes-Junior
- Subjects
biology ,Coffea arabica ,food and beverages ,Coffea arabica L ,Digital analysis ,visão computacional ,image processing of seedlings ,lcsh:Plant culture ,biology.organism_classification ,Accelerated aging ,computer vision ,Digital image ,Horticulture ,SEMENTES ,seed physiological potential ,Seedling ,Germination ,potencial fisiológico de sementes ,Digital image analysis ,lcsh:SB1-1110 ,Cultivar ,processamento de imagens de plântulas ,Agronomy and Crop Science ,Mathematics - Abstract
The digital image analysis of seedlings has become largely employed in seed quality-control programs due to its feasibility, objectivity and fast results. Despite these advantages, no studies have yet demonstrated the efficiency of this technique for analyzing coffee seed vigor. The present study aimed at evaluating the efficiency of the Seed Vigor Imaging System (SVIS®) in determining the vigor of coffee seeds (Coffea arabica L.) from digital images of seedlings. Also, the results of these analyses were contrasted with conventional vigor tests. Six seed lots from each cultivar, Bourbon and Catucaí 20/15, were used. The research was conducted in two experimental times, and the seed vigor was determined by the tests of first germination count, accelerated aging, electrical conductivity, primary root protrusion speed, as well as by the analysis of scanned images of seedlings, made possible by the SVIS® software. For the Bourbon and Catucaí 20/15 cultivars, the SVIS® analysis was able to discriminate lots of both high and low vigor (vigor indexes of 317 to 752, and 181 to 703, respectively). A similar outcome was obtained from the conventional tests appraised in this research. Eventually, it was possible to conclude that the digital analysis of 20-day-old seedlings by SVIS® is an efficient method to evaluate coffee seed vigor. Resumo: A análise de imagens digitalizadas de plântulas é cada vez mais utilizada em programas de controle de qualidade de sementes devido à sua praticidade, objetividade e rapidez na obtenção dos resultados. Apesar dessas vantagens, ainda não existem pesquisas comprovando a eficiência dessa técnica para a análise do vigor de sementes de café. Assim, esta pesquisa teve como objetivo avaliar a eficiência da análise de imagens digitalizadas de plântulas pelo Seed Vigor Imaging System (SVIS®) na determinação do vigor de sementes de café (Coffea arabica L.), e compará-la com os testes convencionalmente empregados. Foram utilizadas sementes das cultivares Bourbon e Catucaí 20/15, cada cultivar representada por seis lotes. A pesquisa foi conduzida em duas épocas de avaliação e o vigor determinado por meio das avaliações de primeira contagem de germinação, envelhecimento acelerado, condutividade elétrica, velocidade de protrusão da raiz primária e análise de imagens digitalizadas de plântulas com o SVIS®. Tanto para a cultivar Bourbon como para a cultivar Catucaí 20/15, a análise SVIS® permitiu discriminar lotes com vigor mais baixo e mais alto (índices de vigor de 317 a 752, e 181 a 703, respectivamente), de maneira semelhante aos testes convencionais utilizados nesta pesquisa. Concluiu-se que a análise de imagens digitalizadas de plântulas com 20 dias de idade após a semeadura pelo SVIS® é eficiente na avaliação do vigor de lotes de sementes de café.
- Published
- 2019
9. Rice seeds yield and quality according to fertilization
- Author
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Santana, Edivado Sousa, Ramos, Lisandro da Luz, Feitoza, Hudson da Costa, Mielezrski, Fabio, Medeiros Madail, João Carlos, Santana, Edivado Sousa, Ramos, Lisandro da Luz, Feitoza, Hudson da Costa, Mielezrski, Fabio, and Medeiros Madail, João Carlos
- Abstract
To obtain high seed quality, good fertilization practices are essential due to its influence not only on seed yield and weight, but also controlling the development of seedlings anomalies. Therefore, the aim of this study was to evaluate the effects of different forms of fertilization on yield and physiological quality of upland rice seeds. It was used nitrogen fertilization in coverage as urea and foliar fertilization with macro and micronutrients. The treatments consist of various sources and forms of fertilization, in a randomized block design, as follows: covering at tillering with N at 34 kg ha-1; covering at floral primordium with N at 34 kg ha-1; foliar fertilization at tillering; foliar fertilization in floral primordium; covering with N at 34 kg ha-1 in tillering and foliar fertilization in floral primordium; only basic fertilization and treatment without fertilization. The results showed that the application of nitrogen fertilizer with urea, at tillering and floral primordium at 34 kg ha-1 of N increased the production of rice seeds. In addition, coverage with urea and foliar fertilization containing macro and micronutrients increased rice seeds yield and physiological quality., Para obtenção de sementes de alta qualidade, boas práticas de adubação são imprescindíveis. Principalmente, por influenciar não somente na produção e o peso de grãos, como controle de anomalias no desenvolvimento das plântulas. Portanto, objetivou-se avaliar os efeitos de diferentes formas de adubação na produtividade e qualidade fisiológica de sementes de arroz de sequeiro. Utilizou-se adubação em cobertura com nitrogênio na forma de ureia e macro e micronutrientes foliar. Os tratamentos consistiram de fontes e formas de adubação, num delineamento em blocos casualizados, sendo: adubação de cobertura no perfilhamento com N em 34 kg ha-1; adubação de cobertura no primórdio floral com N em 34 kg ha-1; adubação foliar no perfilhamento; adubação foliar no estádio de primórdio floral; adubação de cobertura com N em 34 kg ha-1 no perfilhamento e adubação foliar no primórdio floral; somente adubação de base e controle sem adubação. Os resultados mostraram que a aplicação da adubação nitrogenada com ureia, no perfilhamento e primórdio floral na dose de 34 kg ha-1 aumentou a produção de sementes de arroz. Além disso, as adubações de cobertura com ureia e adubo foliar contendo macro e micronutrientes, aumentaram a produtividade e a qualidade fisiológica de sementes de arroz.
- Published
- 2017
10. Film coating of tomato seeds of the associated paclobutrazol
- Author
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Melo , Aniela Pilar Campos de, Seleguini, Alexsander, Veloso, Valquíria da Rocha Santos, Fernandes, Paulo Marçal, and Gomes Junior, Francisco Guilhien
- Subjects
AGRONOMIA [CIENCIAS AGRARIAS] ,Regulador de crescimento ,Growth regulators ,Potencial fisiológico de sementes ,Produção de mudas ,Recobrimento de sementes ,Seed coating ,Seed physiological potential ,Production of seedling - Abstract
O tratamento de sementes com paclobutrazol deve ser aprimorado e tecnologias de recobrimento, como a peliculização, podem ser promissoras para aplicar uniformemente fixar este regulador no tegumento das sementes sem permitir um contato prejudicial ao embrião. Assim, o objetivo do presente trabalho consistiu em avaliar a viabilidade técnica da peliculização de sementes de tomate associada ao paclobutrazol sob o comportamento fisiológico de sementes e as implicações no crescimento de mudas. A pesquisa foi conduzida no Laboratório do Setor de Horticultura e em casa de vegetação do Setor de Manejo Integrado de Pragas da Escola de Agronomia e Engenharia de Alimentos, de março a outubro de 2012. Foram conduzidos três experimentos. Primeiramente, os tratamentos foram dispostos em esquema fatorial 2 x 4, sendo duas cultivares (Santa Clara e Kada Gigante) e quatro concentrações do polímero Disco AG Red L-203® (0, 50, 100 e 150 mL kg-1 de semente) para definição da melhor dose de polímero de revestimento. No segundo, com a dose de polímero estabelecida, o potencial adesivo da peliculização para o tratamento de sementes com paclobutrazol foi determinado por meio de um arranjo fatorial 2 x 4, sendo presença ou ausência do polímero de revestimento Disco AG Red L-203® (0 e 150 mL kg-1 semente) e quatro concentrações de paclobutrazol - PBZ (0, 35, 70 e 105 mg L-1). No terceiro, o condicionamento de sementes de tomate com PBZ (50 mg L-1) e polímero de revestimento Disco AG Red L-203® (150 mL kg-1 de semente) foram avaliados. A peliculização prejudicou a germinação de sementes da cultivar Santa Clara. A cultivar Kada Gigante obteve um desempenho superior a Santa Clara quanto à emergência de plântulas. O uso de polímero hidrofílico (150 mL kg-1 de semente) aumentou 4% a emergência de plântulas, em relação ao controle. O PBZ propiciou reduções de 27% na germinação, 8% na emergência de plântulas, 19% na altura de parte aérea, 20% na área foliar e aumento de 24% na detecção de clorofila, em relação ao controle. A embebição de sementes com PBZ, mesmo com a presença do polímero de revestimento, prejudicou a velocidade de germinação e a emergência de plântulas. Conclui-se que o efeito da peliculização na germinação de sementes de tomate depende da cultivar utilizada. O potencial fisiológico pode ser incrementado pelo uso de polímeros de revestimento, sendo que isto não ocorre para a produção de mudas. O PBZ é eficiente no condicionamento da altura de mudas, mas prejudica a germinação e o vigor de sementes. A peliculização como veículo para fixação do PBZ não é indicada devido à manutenção da redução da emergência de plântulas. Seed treatment with paclobutrazol should be enhanced and coating technologies, such as film coating can be applied uniformly and promising to fix this regulator in the seed coat without allowing a contact damaging the embryo. Thus, the objective of this study was to evaluate the technical feasibility of the film coating tomato seeds with paclobutrazol on seed physiological potential and the implications on the growth of seedlings. The research was carried out in the Laboratory of the “Setor de Horticultura” and at nursery seedling of “Setor de Manejo Integrado de Pragas” of “Escola de Agronomia e Engenharia de Alimentos” from March to October 2012. Three experiments were conducted. First, to define the best dosage of polymer coating, the treatments were arranged in a 2 x 4 factorial, with two cultivars (Santa Clara and Kada Gigante) and four concentrations of polymer Disc AG Red L-203® (0, 50, 100 and 150 mL kg-1 seed). In the second, with the polymer concentration established, the potential adhesive film coating for seed treatment with paclobutrazol was determined through a 2 x 4 factorial arrangement, presence or absence of the coating polymer Disc AG Red L-203® (0 and 150 ml kg-1 seed) and four paclobutrazol concentration PBZ (0, 35, 70 and 105 mg L-1). In the third, the tomato seed conditioning with PBZ (50 mg L-1) and coating polymer Disc AG Red L-203® (150 mL kg-1 seed) were evaluated. The film coating promotes negative effects on germination of cultivar Santa Clara. The cultivate Kada Gigante obtained a superior performance to Santa Clara as the emergence of seedlings. The use of hydrophilic polymer (150 ml kg-1 seed) increased 4% seedling emergence compared to control. The PBZ resulted in reductions in 27% germination, 8% seedling emergence, 19% seedling height, 20% leaf area and in increase in the detection of chlorophyll of 24%, compared to control. Imbibition of seeds with PBZ, even with the presence of the polymer coating, harmed the speed of germination and seedling emergence. In conclusion, the effect of film coating on the germination of tomato seeds depends on the cultivar. The seed physiological potential can increased by the use of polymer coating, although it does not occur for the production of seedlings. PBZ is effective in seedling growth control, but affect the germination and seed vigor. The film coating as a vehicle for fixation of paclobutrazol is not indicated due to maintenance of reduced seedling emergence. Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq
- Published
- 2013
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