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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
06/04/2004 |
Data da última atualização: |
27/07/2007 |
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. |
Título: |
Tolerance to drought in Glycine max (L.) Merril: ecophysiological aspects. |
Ano de publicação: |
2004 |
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. |
Páginas: |
p. 185. |
Série: |
(Embrapa Soja. Documentos, 228). |
Idioma: |
Inglês |
Notas: |
Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi. |
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 |
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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Embrapa Soja (CNPSO) |
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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
09/10/2012 |
Data da última atualização: |
29/08/2023 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SANTANA, C. V. da S.; ANGELOTTI, F.; NASCIMENTO, L. C.; PINHEIRO, G. S.; RODRIGUES, D. R.; FERNANDES, H. A.; COSTA, N. D.; PEIXOTO, A. R. |
Afiliação: |
CARMEM VALDENIA DA SILVA SANTANA; FRANCISLENE ANGELOTTI, CPATSA; LUCIANA CORDEIRO NASCIMENTO; GISELLE SOUZA PINHEIRO; DALILA RIBEIRO RODRIGUES; HERALDO ALVES FERNADES; NIVALDO DUARTE COSTA, CPATSA; ANA ROSA PEIXOTO. |
Título: |
Severidade do oídio em feijão-caupi sob diferentes temperaturas. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Horticultura Brasileira, v. 30, n. 2, p. S1931-S1936, jul. 2012. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Português |
Notas: |
Suplemento. Edição dos Anais do 52 Congresso Brasileiro de Olericultura, Salvador, jul. 2012. |
Conteúdo: |
O objetivo deste trabalho foi avaliar a influência da temperatura na infecção de oídio em feijão-caupi, na cultivar Carijó. |
Palavras-Chave: |
Bean; Cultivar Carijó. |
Thesagro: |
Doença; Feijão; Oídio; Vigna Unguiculata. |
Thesaurus NAL: |
Cowpeas. |
Categoria do assunto: |
A Sistemas de Cultivo |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/67613/1/Fran1.pdf
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Marc: |
LEADER 01041nam a2200301 a 4500 001 1936054 005 2023-08-29 008 2012 bl uuuu u00u1 u #d 100 1 $aSANTANA, C. V. da S. 245 $aSeveridade do oídio em feijão-caupi sob diferentes temperaturas.$h[electronic resource] 260 $aHorticultura Brasileira, v. 30, n. 2, p. S1931-S1936, jul. 2012.$c2012 300 $c1 CD-ROM. 500 $aSuplemento. Edição dos Anais do 52 Congresso Brasileiro de Olericultura, Salvador, jul. 2012. 520 $aO objetivo deste trabalho foi avaliar a influência da temperatura na infecção de oídio em feijão-caupi, na cultivar Carijó. 650 $aCowpeas 650 $aDoença 650 $aFeijão 650 $aOídio 650 $aVigna Unguiculata 653 $aBean 653 $aCultivar Carijó 700 1 $aANGELOTTI, F. 700 1 $aNASCIMENTO, L. C. 700 1 $aPINHEIRO, G. S. 700 1 $aRODRIGUES, D. R. 700 1 $aFERNANDES, H. A. 700 1 $aCOSTA, N. D. 700 1 $aPEIXOTO, A. R.
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