15 results on '"Bortolheiro, Fernanda Pacheco de Almeida Prado"'
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2. Azospirillum brasilense and Nitrogen Fertilizer Affect the Development and Quality of Cantaloupe Melons
- Author
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Vendruscolo, Eduardo Pradi, Campos, Luiz Fernandes Cardoso, Seleguini, Alexsander, de Lima, Sebastião Ferreira, Bortolheiro, Fernanda Pacheco de Almeida Prado, Martins, Murilo Battistuzzi, Seron, Cássio de Castro, and de Souza, Maria Ingrid
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- 2023
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3. Plant–Vitamin–Microorganism Interaction in Hydroponic Melon Cultivation.
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Ribeiro, Vanessa, Vendruscolo, Eduardo Pradi, Conceição, Jessé Santarém, Lima, Sebastião Ferreira de, Binotti, Flávio Ferreira da Silva, Bortolheiro, Fernanda Pacheco de Almeida Prado, Oliveira, Carlos Eduardo da Silva, Costa, Edilson, and Lafleur, Luc
- Subjects
NICOTINAMIDE ,CROP development ,PLANT growth ,AGRICULTURE ,AZOSPIRILLUM brasilense - Abstract
The study of the application of biostimulants in agriculture aims to increase production and improve the efficient use of physical space and agricultural inputs, thus contributing to the sustainability of production systems. One of the new challenges is to verify the effects of joint application of these products to identify possible interactions during crop development. In this context, the present study aimed to evaluate the biostimulant potential of the isolated and combined use of nicotinamide and Azospirillum brasilense in developing cantaloupe melon plants and fruits. The treatments consisted of foliar application (combined and isolated) of nicotinamide (300 mg L
−1 ) and A. brasilense (2 mL L−1 ). The results revealed that applying biostimulants positively influences gas exchange and vegetative growth of plants, especially in the root system. However, although the isolated application of each biostimulant resulted in greater effectiveness in terms of transpiration, stomatal conductance, and net CO2 assimilation, which provided an increase in the soluble solids content, the combined application of the two biostimulants resulted in significant gains in the growth of vegetative organs and fruits. Furthermore, combined applications of nicotinamide plus A. brasilense favored the development of biometric characteristics and fruit fresh weight, while isolated applications increased soluble solids content. [ABSTRACT FROM AUTHOR]- Published
- 2024
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4. Economic Efficiency of Mechanized Harvesting of Sugarcane at Different Operating Speeds
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Martins, Murilo Battistuzzi, Filho, Aldir Carpes Marques, Drudi, Fernanda Scaranello, Bortolheiro, Fernanda Pacheco de Almeida Prado, Vendruscolo, Eduardo Pradi, and Esperancini, Maura Seiko Tsutsui
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- 2021
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5. Controlled Traffic Farm: Fuel Demand and Carbon Emissions in Soybean Sowing.
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Martins, Murilo Battistuzzi, Marques Filho, Aldir Carpes, Seron, Cássio de Castro, Guimarães Júnnyor, Wellingthon da Silva, Vendruscolo, Eduardo Pradi, Bortolheiro, Fernanda Pacheco de Almeida Prado, Blanco Bertolo, Diego Miguel, Lopes, Arthur Gabriel Caldas, and Santana, Lucas Santos
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SUSTAINABLE agriculture ,SOYBEAN sowing ,TILLAGE ,GREENHOUSE gases ,CARBON emissions ,NO-tillage ,SOIL management ,SOYBEAN - Abstract
Soil compaction between crop rows can increase a machine's performance by reducing rolling resistance and fuel demand. Controlled Traffic Farm (CTF) stands out among modern techniques for increasing agricultural sustainability because the machines continuously travel along the same path in the field, reducing plant crush and compacting the soil in the traffic line. This study evaluated fuel consumption and CO
2 emissions at different CTF intensities in different soil management strategies for soybean crop. The experimental design involved randomized blocks in a split-plot scheme with four replications. The plots constituted the three types of soil management: conventional tillage, no-tillage with straw millet cover, and no-tillage with brachiária straw cover. The subplots constituted for agricultural tractors were passed over in traffic lines (2, 4, and 8 times). We evaluated agricultural tractor fuel consumption, CO2 emissions, and soybean productivity. The straw cover and tractor-pass significantly affected the fuel consumption and greenhouse gas emissions of the soybean cultivation. Fuel consumption and CO2 emissions were reduced due to the machine-pass increase, regardless of soil management. Thus, a CTF reduces rolling resistance and increases crop environmental efficiency. Bare-soil areas increased by 20.8% and 27.9% with respect to fuel consumption, compared to straw-cover systems. Brachiária straw and millet reduce CO2 emissions per hectare by 20% and 28% compared to bare soil. Lower traffic intensities (two passes) showed (13.72%) higher soybean yields (of 4.04 Mg ha−1 ). Investigating these effects in other types of soil and mechanized operations then becomes essential. [ABSTRACT FROM AUTHOR]- Published
- 2024
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- View/download PDF
6. SOYBEAN GRAIN YIELD IS IMPACTED BY THE SOWING DEPTH AND THE TYPE OF SOIL COVER
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Gomides, João Flávio Floriano Borges, primary, Martins, Murilo Battistuzzi, additional, Bortolheiro, Fernanda Pacheco de Almeida Prado, additional, Seron, Cássio de Castro, additional, Salles, Jussara Souza, additional, and Vendruscolo, Eduardo Pradi, additional
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- 2023
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7. Productivity and Quality Sugarcane Broth at Different Soil Management
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Martins, Murilo Battistuzzi, primary, Marques Filho, Aldir Carpes, additional, Santana, Lucas Santos, additional, Guimarães Júnnyor, Wellingthon da Silva, additional, Bortolheiro, Fernanda Pacheco de Almeida Prado, additional, Vendruscolo, Eduardo Pradi, additional, Seron, Cássio de Castro, additional, Costa, Edilson, additional, and da Silva, Kelly Gabriela Pereira, additional
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- 2023
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8. Glyphosate at low doses changes the physiology and increases the productivity of common bean as affected by sowing seasons
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Bortolheiro, Fernanda Pacheco de Almeida Prado, primary, Brunelli-Nascentes, Marcela Cristina, additional, Nascentes, Renan Fonseca, additional, and Silva, Marcelo de Almeida, additional
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- 2022
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9. Can low doses of glyphosate stimulate common bean growth?
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Bortolheiro, Fernanda Pacheco de Almeida Prado, primary, Brunelli-Nascentes, Marcela Cristina, additional, Boaro, Carmen Sílvia Fernandes, additional, and Silva, Marcelo de Almeida, additional
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- 2020
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10. Economic Efficiency of Mechanized Harvesting of Sugarcane at Different Operating Speeds
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Martins, Murilo Battistuzzi, primary, Filho, Aldir Carpes Marques, additional, Drudi, Fernanda Scaranello, additional, Bortolheiro, Fernanda Pacheco de Almeida Prado, additional, Vendruscolo, Eduardo Pradi, additional, and Esperancini, Maura Seiko Tsutsui, additional
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- 2020
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11. Do planting methods and nitrogen management interfere with the economic viability of the melon crop?
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Vendruscolo, Eduardo Pradi, primary, Bortolheiro, Fernanda Pacheco de Almeida Prado, additional, Martins, Murilo Battistuzzi, additional, Campos, Luiz Fernandes Cardoso, additional, Seleguini, Alexsander, additional, and De Lima, Sebastião Ferreira, additional
- Published
- 2020
- Full Text
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12. Photosynthesis, nutrient concentration and yield of common bean after glyphosate subdoses application
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Bortolheiro, Fernanda Pacheco de Almeida Prado [UNESP], Universidade Estadual Paulista (Unesp), and Silva, Marcelo de Almeida
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Hormesis ,Phaseolus vulgaris L ,Nutrição mineral ,Mineral nutrition ,Gas exchange ,Quantitative growth analysis ,Hormese ,Grain yield ,Trocas gasosas ,Análise quantitativa de crescimento ,Produtividade de grãos - Abstract
Submitted by Fernanda Pacheco de Almeida Prado Bortolheiro (ferborto@yahoo.com.br) on 2019-05-08T21:19:36Z No. of bitstreams: 1 FERNANDA PACHECO DE ALMEIDA PRADO BORTOLHEIRO TESE FINAL.pdf: 5839774 bytes, checksum: 70d2a10fd0813357a5ac37e5022ab888 (MD5) Approved for entry into archive by Maria Lucia Martins Frederico null (mlucia@fca.unesp.br) on 2019-05-09T13:11:27Z (GMT) No. of bitstreams: 1 bortolheiro_fpap_dr_botfca_par.pdf: 916946 bytes, checksum: 6cc8c03adf25a9bebe5f38a3c8d94adf (MD5) Made available in DSpace on 2019-05-09T13:11:27Z (GMT). No. of bitstreams: 1 bortolheiro_fpap_dr_botfca_par.pdf: 916946 bytes, checksum: 6cc8c03adf25a9bebe5f38a3c8d94adf (MD5) Previous issue date: 2019-03-29 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Glyphosate em subdoses pode estimular o crescimento das plantas. O efeito estimulatório de baixas doses de um composto tóxico é conhecido como hormese. Estudos como este são de fundamental importância para a adoção do manejo desta tecnologia. A hipótese desta pesquisa foi que subdoses de glyphosate promovem alterações a nível morfológico, fisiológico, nutricional e de produção em plantas de feijoeiro comum. Deste modo, o objetivo foi avaliar as alterações morfológicas, nutricionais, fisiológicas e na produtividade de grãos do feijoeiro comum de ciclo precoce submetido à aplicação de subdoses de glyphosate e se esses efeitos são influenciados pelas épocas de semeadura da cultura. Os experimentos foram conduzidos em campo e a cultivar utilizada foi a IAC Imperador, feijoeiro comum de ciclo precoce. O delineamento experimental adotado foi de blocos ao acaso, constituído de doses de glyphosate aplicadas no estádio fenológico V4, com quatro repetições. Foram realizados dois experimentos, o primeiro na safra de inverno e o segundo na safra das águas, no ano de 2016. Na safra de inverno, os tratamentos consistiram em cinco subdoses de glyphosate (0; 1,8; 7,2; 12 e 36 g de equivalente ácido (e.a.) ha-1), na safra das águas, os tratamentos consistiram em sete subdoses de glyphosate (0; 1,8; 7,2; 12; 36; 54 e 108 g de e.a. ha-1). Foram avaliados: altura de plantas, área foliar, massa de matéria seca de folhas, caule e parte aérea, taxa de crescimento da cultura (TCC), taxa de crescimento relativo (TCR), taxa de assimilação líquida (TAL), razão de área foliar (RAF), área foliar específica (AFE) e peso específico de folha (PE), teores de macro e micronutrientes nas folhas e grãos, conteúdo de clorofila a, b, total e carotenoides, taxa de assimilação de CO2, condutância estomática, taxa de transpiração, concentração interna de CO2, eficiência instantânea de carboxilação da rubisco, número de vagens por plantas, número de grãos por planta, número de grãos por vagem, massa de 1000 grãos e produtividade de grãos. A aplicação de subdoses de glyphosate proporcionou alterações, com influência da época de cultivo, nas variáveis avaliadas para o feijoeiro comum. Não foi observada uma dose única que beneficiasse todas as variáveis avaliadas em folhas e grãos do feijoeiro, no entanto, na safra de inverno podem ser destacas as doses, 36 g e.a. ha-1 por promover o crescimento das plantas; as doses 1,8; 7,2 e 36 g e.a. ha-1 por aumentar o teor de nutrientes e a dose 7,2 g e.a. ha-1 por incrementar a produtividade de grãos. Na safra das águas, a dose 36 g e.a. ha-1 promoveu o crescimento das plantas, a dose 12 g e.a. ha-1 incrementou o teor de nutrientes e a dose 36 g e.a. ha-1 aumentou a produtividade de grãos. Glyphosate low doses can stimulate plant growth. The stimulatory effect of low dose use of a toxic compound is known as hormesis. Studies like this are of fundamental importance for the adoption of this technology. The hypothesis of this research is that glyphosate subdoses promote changes at the morphological, physiological, nutritional and production levels in common bean plants. Thus, the objective of this work was to evaluate if the application of glyphosate low doses promotes changes in common bean growth, physiology, nutritional and productivity and whether these effects are influenced by the planting seasons. Two experiments were conducted in the field and the cultivar used was the IAC Imperador, common bean of early cycle. The experimental design was a randomized block design, consisting of doses of glyphosate and one season of application (phenological stage V4), with four replications. Two experiments were carried out in 2016, the first in the winter season and the second in the water season. In the winter season, treatments consisted of five glyphosate sub-doses (0, 1.8, 7.2, 12 and 36 g of acid equivalent (a.e.) ha-1), in the water season, treatments consisted of seven subdoses of glyphosate (0.8, 7.2, 12, 36, 54 and 108 g of a.e. ha-1). Plant height, leaf area, leaf dry mass, stem dry mass, shoots dry mass, growth rate (GR), relative growth rate (RGR), net assimilation rate (NAR), leaf area ratio (LAR), specific leaf area (SLA), specific leaf weight (SLW), nutrient content on leaves and grains, chorophyll a, b, total and carotenoids content, CO2 assimilation rate, stomatal conductance, transpiration rate, CO2 internal concentration, instantaneous carboxylation efficiency of rubisco, number of pods per plant, number of grains per plant, number of grain per pod, mass of 1000 grains and grain yield were evaluated. The application of glyphosate low doses, influenced by the growing season, resulted in changes in the evaluated parameters in common bean. There was no single dose that benefited all the variables evaluated in leaves and grains of common beans, however, in the winter season, the dose 36 g a.e. ha-1 promoted plant growth, the doses 1.8; 7.2 and 36 g a.e. ha-1 increased nutrient content and the dose 7.2 g a.e. ha-1 increased grain yield. In the water season, the dose 36 g a.e. ha-1 promoted plant growth, the dose 12 g a.e. ha-1 increased nutrient content and the dose 36 g a.e. ha-1 increased grain yield. 162258/2015-1
- Published
- 2019
13. Can low doses of glyphosate stimulate common bean growth?
- Author
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Bortolheiro, Fernanda Pacheco de Almeida Prado, Brunelli-Nascentes, Marcela Cristina, Boaro, Carmen Sílvia Fernandes, and Silva, Marcelo de Almeida
- Subjects
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COMMON bean , *GLYPHOSATE , *ATMOSPHERIC temperature , *PLANT growth , *BLOCK designs , *EXPERIMENTAL design , *SOWING - Abstract
Plant growth can be stimulated by low doses of glyphosate. The objective of this work was to evaluate the effect of low doses of glyphosate and sowing season on the growth of the early cycle common bean. Two experiments were conducted in the field, the first in the winter and the second in the wet season, with the early cycle common bean cultivar IAC Imperador. The experimental design was a randomized complete block design, consisting of low doses of glyphosate applied on phenological stage V4, with four replications. Environmental conditions, such as air temperature, interfered in the early cycle common bean response to low doses of glyphosate. In the winter season, a dose of 36 g a.e. ha−1 promoted growth in the common bean, and a dose of 7.2 g a.e. ha−1 improved the harvest index. In the wet season, there was no growth stimulus, and the harvest index increased with a dose of 36 g a.e. ha−1. The harvest index was the only characteristic improved in both seasons, but with different doses. Our study indicates that growth characteristics of early cycle common bean are stimulated by low doses of glyphosate, but this response is dependent on the growing environment. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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14. Caracterização de linhagens de cártamo (Carthamus tinctorius L.) em condições de deficiência hídrica e reidratação
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Bortolheiro, Fernanda Pacheco de Almeida Prado [UNESP], Universidade Estadual Paulista (Unesp), and Silva, Marcelo de Almeida [UNESP]
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Plantas oleaginosas - Fisiologia ,Desidratação (Hídrica) ,Secas ,Linkage (Genetics) ,Plantas oleaginosas - Morfologia ,Linhagem (Genética) - Abstract
Made available in DSpace on 2016-03-07T19:21:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-07-07. Added 1 bitstream(s) on 2016-03-07T19:25:21Z : No. of bitstreams: 1 000858666.pdf: 1055250 bytes, checksum: 775b083458c00e8705fd1e565d31686e (MD5) Pouco conhecido e explorado no Brasil, o cártamo (Carthamus tinctorius L.) é uma alternativa interessante para ser incluída em sistemas de rotação de cultura na região do cerrado. A cultura é rústica, tolerante à deficiência hídrica e ao frio, tornando-se uma opção para cultivo de safrinha, porém pouco ainda se conhece sobre a variabilidade genética das linhagens introduzidas no país. O objetivo do trabalho foi avaliar a morfologia e a fisiologia de seis linhagens de cártamo em condições de deficiência hídrica seguida de reidratação. O experimento foi realizado sob cultivo protegido em caixas contendo aproximadamente 300 L de solo. Os tratamentos foram arranjados em um delineamento de blocos ao acaso em esquema fatorial 6 x 2. O primeiro fator foi composto por seis linhagens de cártamo (IMA 02, IMA 04, IMA 10, IMA 14, IMA 16 e IMA 21), e o segundo por dois regimes hídricos (sem e com deficiência hídrica). Todas as caixas foram mantidas em capacidade de campo (CC) até os 55 dias após a semeadura (DAS), depois as plantas foram expostas ao estresse por deficiência hídrica por um período de 30 dias. No tratamento sem deficiência (-D) as plantas foram hidratadas em 100% da capacidade de campo (CC), enquanto que no tratamento com deficiência moderada (+D) as plantas foram mantidas com 50% CC. Após o período de 30 dias de deficiência hídrica, as plantas foram reidratadas por 18 dias, neste período foram realizadas avaliações de potencial hídrico foliar, teor de clorofila, conteúdo relativo de água, tolerância protoplasmática, massa seca de raízes, parte aérea e capítulos, razão raiz/parte aérea, altura de planta, número de capítulos por planta, índice de colheita, peso de mil grãos e produtividade de grãos. Há variabilidade genética entre as seis linhagens de cártamo para todas as características avaliadas. As linhagens IMA 21, IMA 10 e IMA 04 ... Safflower is barely known and explored in Brazil, but has been shown as an interesting alternative for inclusion in crop rotation systems in the Cerrado region. The culture is rustic, tolerant to cold and water deficiency, what make it an option for cultivation in the off-season. The objective of this work was to evaluate the morphology and physiology of six safflower lines under water deficit. The experiment was carried out in a greenhouse in pots contend approximately 300 L of soil. The treatments were arranged in a randomized block design in factorial scheme 6 x 2. The first factor was composed of six lines of safflower (IMA 02, IMA 04, IMA 10, IMA 14, IMA 16 e IMA 21), and the second was the two water regimes (without and with water deficiency). All the boxes were kept at field capacity (FC) to 55 days after seeding (DAS), after the plants were exposed to water deficiency stress for a period of 30 days. The treatment without deficiency (-D) plants were hydrated in 100 field capacity (FC), while in the treatment with deficiency (+D) plants were maintained with 50% FC. After the period of 30 days, the plants were rehydrated for 18 days, in this period were carried out evaluations of leaf water potential, chlorophyll content, relative water content, protoplasmic tolerance, dry mass of root, shoot and flowers, root/shoot ratio, plant height, number of flowers per plant, harvest index, weight of thousand grains and grain yield. There is genetic variability among the six safflower lines for all traits evaluated. The lines IMA 04, IMA 10 and IMA 21 had better recovery of morpho-physiological characteristics after the water deficit and rehydration, in that, the line IMA 14 had better values of number of chapters per plant, relative water content in leaf, and dry matter of the shoot and root; and the line IMA 10 stood out in the variables contents of chlorophyll a, b, total, carotenoids and SPAD index ...
- Published
- 2015
15. DESSECAÇÃO EM PRÉ-COLHEITA NO POTENCIAL FISIOLÓGICO DE SEMENTES E DESENVOLVIMENTO INICIAL DE TRIGO
- Author
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Tarumoto, Miriam Büchler, primary, Carvalho, Fernando Tadeu de, additional, Arf, Orivaldo, additional, Silva, Pedro Henrique Favareto, additional, Pereira, Juliana Costa, additional, and Bortolheiro, Fernanda Pacheco de Almeida Prado, additional
- Published
- 2015
- Full Text
- View/download PDF
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