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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/04/2004 |
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Data da última atualização: |
27/07/2007 |
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Autoria: |
STOLF, R.; MEDRI, M. E.; BROGIN, R. L.; MOLINA, J. C.; SILVEIRA, C. A. da; MARIN, S. R. R.; BINNECK, E.; LEMOS, N. G.; PIOTTO, E. C. S.; DIAS, J.; NEUMAIER, N.; NEPOMUCENO, A. L. |
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Título: |
Tolerance to drought in Glycine max (L.) Merril: ecophysiological aspects. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004. |
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Páginas: |
p. 185. |
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Série: |
(Embrapa Soja. Documentos, 228). |
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Idioma: |
Inglês |
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Notas: |
Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi. |
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Conteúdo: |
One of the main causes on the variation in soybean yields, has been the stress events, caused by climatic adversities such as drought. The aim of this work was to evaluate physiological and morpho-anatomical strategies of two soybean cultivars, Conquista (MGBR-46) and BR-16, tolerant and susceptible to drought, respectively, during two periods of water deficit: 30 and 45 days. The experiment was performed in greenhouse, in a completely randomized design (CRD), in PVC pots with sand, considering the treatments with gravimetric humidity of 15% (field capacity) and 5% (moderate stress). Measurements were made on leaf area, plant height, relative growth rate (RGR), photosynthesis and stomatal conductance. As results, it was observed that the photosynthesis was significantly reduced with 45 days of stress, and the tolerant cultivar presented smaller values of photosynthetic rate. Data on stomatal conductance showed that values weren't significantly different. It was also observed a small reduction in the leaf area between the cultivars in the period of 45 days of treatment. During water stress period, leaf abscission had occurred, which could have contributed to the reduction in leaf area, as well as the reduction in the photosynthetic rate. The relative growth rate, which express the plant growth as a function of dry mass accumulation versus time, presented a significant reduction in the 30 days treatment. Fifteen days after this period, which means 45 days of treatment, the plants of the drought susceptible cultivar in stressed condition, showed loss of dry mass. This result also showed that, during the 30 days treatment plants showed some stress which increased with time. Considering the dry mass of pods, it was observed a significant reduction in the cultivar BR-16 when compared to Conquista and, also, inside each cultivar in the different treatments. It shows that this reduction in total dry mass could be affecting the yield of these cultivars. The anatomical study, using permanent slides of leaf and root was done using the method of paraffin inclusion. Quantitative analysis were performed on palisade and spongy parenchyma and intercellular space. Next, it will be doing molecular studies to understand the soybean tolerance strategies to drought, for example how genes are differentially expressed during this period. MenosOne of the main causes on the variation in soybean yields, has been the stress events, caused by climatic adversities such as drought. The aim of this work was to evaluate physiological and morpho-anatomical strategies of two soybean cultivars, Conquista (MGBR-46) and BR-16, tolerant and susceptible to drought, respectively, during two periods of water deficit: 30 and 45 days. The experiment was performed in greenhouse, in a completely randomized design (CRD), in PVC pots with sand, considering the treatments with gravimetric humidity of 15% (field capacity) and 5% (moderate stress). Measurements were made on leaf area, plant height, relative growth rate (RGR), photosynthesis and stomatal conductance. As results, it was observed that the photosynthesis was significantly reduced with 45 days of stress, and the tolerant cultivar presented smaller values of photosynthetic rate. Data on stomatal conductance showed that values weren't significantly different. It was also observed a small reduction in the leaf area between the cultivars in the period of 45 days of treatment. During water stress period, leaf abscission had occurred, which could have contributed to the reduction in leaf area, as well as the reduction in the photosynthetic rate. The relative growth rate, which express the plant growth as a function of dry mass accumulation versus time, presented a significant reduction in the 30 days treatment. Fifteen days after this period, which means 45 days of treatment, the pla... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 03490naa a2200289 a 4500
001 1466794
005 2007-07-27
008 2004 bl uuuu u00u1 u #d
100 1 $aSTOLF, R.
245 $aTolerance to drought in Glycine max (L.) Merril$becophysiological aspects.
260 $c2004
300 $ap. 185.
490 $a(Embrapa Soja. Documentos, 228).
500 $aEditado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.
520 $aOne of the main causes on the variation in soybean yields, has been the stress events, caused by climatic adversities such as drought. The aim of this work was to evaluate physiological and morpho-anatomical strategies of two soybean cultivars, Conquista (MGBR-46) and BR-16, tolerant and susceptible to drought, respectively, during two periods of water deficit: 30 and 45 days. The experiment was performed in greenhouse, in a completely randomized design (CRD), in PVC pots with sand, considering the treatments with gravimetric humidity of 15% (field capacity) and 5% (moderate stress). Measurements were made on leaf area, plant height, relative growth rate (RGR), photosynthesis and stomatal conductance. As results, it was observed that the photosynthesis was significantly reduced with 45 days of stress, and the tolerant cultivar presented smaller values of photosynthetic rate. Data on stomatal conductance showed that values weren't significantly different. It was also observed a small reduction in the leaf area between the cultivars in the period of 45 days of treatment. During water stress period, leaf abscission had occurred, which could have contributed to the reduction in leaf area, as well as the reduction in the photosynthetic rate. The relative growth rate, which express the plant growth as a function of dry mass accumulation versus time, presented a significant reduction in the 30 days treatment. Fifteen days after this period, which means 45 days of treatment, the plants of the drought susceptible cultivar in stressed condition, showed loss of dry mass. This result also showed that, during the 30 days treatment plants showed some stress which increased with time. Considering the dry mass of pods, it was observed a significant reduction in the cultivar BR-16 when compared to Conquista and, also, inside each cultivar in the different treatments. It shows that this reduction in total dry mass could be affecting the yield of these cultivars. The anatomical study, using permanent slides of leaf and root was done using the method of paraffin inclusion. Quantitative analysis were performed on palisade and spongy parenchyma and intercellular space. Next, it will be doing molecular studies to understand the soybean tolerance strategies to drought, for example how genes are differentially expressed during this period.
700 1 $aMEDRI, M. E.
700 1 $aBROGIN, R. L.
700 1 $aMOLINA, J. C.
700 1 $aSILVEIRA, C. A. da
700 1 $aMARIN, S. R. R.
700 1 $aBINNECK, E.
700 1 $aLEMOS, N. G.
700 1 $aPIOTTO, E. C. S.
700 1 $aDIAS, J.
700 1 $aNEUMAIER, N.
700 1 $aNEPOMUCENO, A. L.
773 $tIn: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
29/05/2023 |
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Data da última atualização: |
29/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
SEOANE, C. E. S.; BIM, O. J. B.; LIMA, A. D.; FROUFE, L. C. M. |
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Afiliação: |
CARLOS EDUARDO SICOLI SEOANE, CNPF; OCIMAR JOSÉ BATISTA BIM, Instituto Florestal de São Paulo; ARTUR DALTON LIMA, Associação dos Agricultores Agroflorestais de Barra do Turvo e Adrianópolis - Cooperafloresta; LUIS CLAUDIO MARANHAO FROUFE, CNPF. |
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Título: |
Restauração ecológica em sistemas agroflorestais sucessionais do Vale do Ribeira, São Paulo. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Pesquisa Florestal Brasileira, v. 43, 2023. |
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Páginas: |
15 p. |
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DOI: |
https://doi.org/10.4336/2023.pfb.43e202102179 |
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Idioma: |
Português |
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Conteúdo: |
Nas últimas três décadas foi possível observar uma crescente percepção de que a restauração de ecossistemas degradados é necessária, para garantir um mínimo de qualidade de vida para as futuras gerações. O objetivo deste trabalho foi avaliar sistemas agroflorestais sucessionais do Vale do Ribeira, utilizando os indicadores de restauração ecológica da legislação brasileira e os conceitos internacionais estabelecidos pela Sociedade para a Restauração Ecológica, e apontar possíveis soluções para otimização do potencial dos sistemas agroflorestais. Os sistemas agroflorestais sucessionais do Vale do Ribeira demonstram ser práticas eficientes, eficazes e engajadas em restauração ecológica, pois atendem aos indicadores e à maioria dos conceitos empregados como base. Aponta-se a necessidade de construção de políticas públicas voltadas para incentivos normativos e soluções tecnológicas que possibilitem o aumento da geração de renda nestes sistemas. TITLE: Ecological restoration in successional agroforestry systems of Vale do Ribeira, São Paulo State, Brazil ABSTRACT: From the last three decades, there has been a growing perception that the restoration of degraded ecosystems is necessary to guarantee a minimum life quality for future generations. The objective of this work was to evaluate the successional agroforestry systems of Vale do Ribeira, using ecological restoration indicators present in the Brazilian legislation and the in international concepts presented by the Society for Ecological Restoration, and to point out possible solutions to optimize its potential. The successional agroforestry systems in the Vale do Ribeira proved to be efficient, effective and engaged as ecological restoration practices, since they meet the ecological restoration indicators of the legislation and most of the concepts of restoration ecology. Public policies should be developed aiming regulatory incentives and technological solutions to increase income generation by these systems. MenosNas últimas três décadas foi possível observar uma crescente percepção de que a restauração de ecossistemas degradados é necessária, para garantir um mínimo de qualidade de vida para as futuras gerações. O objetivo deste trabalho foi avaliar sistemas agroflorestais sucessionais do Vale do Ribeira, utilizando os indicadores de restauração ecológica da legislação brasileira e os conceitos internacionais estabelecidos pela Sociedade para a Restauração Ecológica, e apontar possíveis soluções para otimização do potencial dos sistemas agroflorestais. Os sistemas agroflorestais sucessionais do Vale do Ribeira demonstram ser práticas eficientes, eficazes e engajadas em restauração ecológica, pois atendem aos indicadores e à maioria dos conceitos empregados como base. Aponta-se a necessidade de construção de políticas públicas voltadas para incentivos normativos e soluções tecnológicas que possibilitem o aumento da geração de renda nestes sistemas. TITLE: Ecological restoration in successional agroforestry systems of Vale do Ribeira, São Paulo State, Brazil ABSTRACT: From the last three decades, there has been a growing perception that the restoration of degraded ecosystems is necessary to guarantee a minimum life quality for future generations. The objective of this work was to evaluate the successional agroforestry systems of Vale do Ribeira, using ecological restoration indicators present in the Brazilian legislation and the in international concepts presented by the Society for E... Mostrar Tudo |
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Palavras-Chave: |
Agroecologia; Espécies invasoras; Peasant agriculture. |
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Thesagro: |
Agricultura Familiar. |
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Thesaurus NAL: |
Agroecology; Invasive species. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154080/1/EmbrapaFlorestas-PFB-2023-RestauracaoEcologicaSAFsValeRibeiraSP.pdf
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Marc: |
LEADER 02800naa a2200253 a 4500
001 2154080
005 2023-05-29
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.4336/2023.pfb.43e202102179$2DOI
100 1 $aSEOANE, C. E. S.
245 $aRestauração ecológica em sistemas agroflorestais sucessionais do Vale do Ribeira, São Paulo.$h[electronic resource]
260 $c2023
300 $a15 p.
520 $aNas últimas três décadas foi possível observar uma crescente percepção de que a restauração de ecossistemas degradados é necessária, para garantir um mínimo de qualidade de vida para as futuras gerações. O objetivo deste trabalho foi avaliar sistemas agroflorestais sucessionais do Vale do Ribeira, utilizando os indicadores de restauração ecológica da legislação brasileira e os conceitos internacionais estabelecidos pela Sociedade para a Restauração Ecológica, e apontar possíveis soluções para otimização do potencial dos sistemas agroflorestais. Os sistemas agroflorestais sucessionais do Vale do Ribeira demonstram ser práticas eficientes, eficazes e engajadas em restauração ecológica, pois atendem aos indicadores e à maioria dos conceitos empregados como base. Aponta-se a necessidade de construção de políticas públicas voltadas para incentivos normativos e soluções tecnológicas que possibilitem o aumento da geração de renda nestes sistemas. TITLE: Ecological restoration in successional agroforestry systems of Vale do Ribeira, São Paulo State, Brazil ABSTRACT: From the last three decades, there has been a growing perception that the restoration of degraded ecosystems is necessary to guarantee a minimum life quality for future generations. The objective of this work was to evaluate the successional agroforestry systems of Vale do Ribeira, using ecological restoration indicators present in the Brazilian legislation and the in international concepts presented by the Society for Ecological Restoration, and to point out possible solutions to optimize its potential. The successional agroforestry systems in the Vale do Ribeira proved to be efficient, effective and engaged as ecological restoration practices, since they meet the ecological restoration indicators of the legislation and most of the concepts of restoration ecology. Public policies should be developed aiming regulatory incentives and technological solutions to increase income generation by these systems.
650 $aAgroecology
650 $aInvasive species
650 $aAgricultura Familiar
653 $aAgroecologia
653 $aEspécies invasoras
653 $aPeasant agriculture
700 1 $aBIM, O. J. B.
700 1 $aLIMA, A. D.
700 1 $aFROUFE, L. C. M.
773 $tPesquisa Florestal Brasileira$gv. 43, 2023.
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