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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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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
02/02/2018 |
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Data da última atualização: |
02/02/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
RIBEIRO, S. M. L.; ITO, D.; CARVALHO, J. L. V. de; MOREIRA, C. Q.; ALVES, R. M. |
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Afiliação: |
Sophia M. L. Ribeiro, UNICAMP; Danielle Ito, ITAL; JOSE LUIZ VIANA DE CARVALHO, CTAA; Cristiane Q. Moreira, ITAL; Rosa M. V Alves, ITAL. |
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Título: |
Embalagem plástica para flocão de milho biofortificado. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE POLÍMEROS, 14., 2017, Águas de Lindóia. Anais... Águas de Lindóia: ABPol, 2017. 5 p. |
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Idioma: |
Português |
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Notas: |
22 a 26 de outubro de 2017. |
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Conteúdo: |
Devido a carência de micronutrientes que são essenciais para a saúde, vem sendo desenvolvido no Brasil produtos biofortificados. O objetivo desse estudo foi levantar informações sobre os efeitos de quatro tipos de embalagem e do tipo de acondicionamento (com e sem vácuo), na perda de qualidade de flocão de milho biofortificado. Os resultados mostraram que em todas as embalagens avaliadas houve preservação dos carotenoides, tendo um destaque para o PETmet/PEBD com vácuo que teve uma maior retenção do teor de carotenoides pró-vitamina A e maior preservação da cor. |
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Palavras-Chave: |
Biofortificado; Carotenoides; Flocão de Milho. |
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Thesagro: |
Embalagem. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172100/1/Embalagem-Focao-Milho-Rosa-et-al-CBPol-2017.pdf
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Marc: |
LEADER 01278nam a2200217 a 4500
001 2086968
005 2018-02-02
008 2017 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, S. M. L.
245 $aEmbalagem plástica para flocão de milho biofortificado.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE POLÍMEROS, 14., 2017, Águas de Lindóia. Anais... Águas de Lindóia: ABPol, 2017. 5 p.$c2017
500 $a22 a 26 de outubro de 2017.
520 $aDevido a carência de micronutrientes que são essenciais para a saúde, vem sendo desenvolvido no Brasil produtos biofortificados. O objetivo desse estudo foi levantar informações sobre os efeitos de quatro tipos de embalagem e do tipo de acondicionamento (com e sem vácuo), na perda de qualidade de flocão de milho biofortificado. Os resultados mostraram que em todas as embalagens avaliadas houve preservação dos carotenoides, tendo um destaque para o PETmet/PEBD com vácuo que teve uma maior retenção do teor de carotenoides pró-vitamina A e maior preservação da cor.
650 $aEmbalagem
653 $aBiofortificado
653 $aCarotenoides
653 $aFlocão de Milho
700 1 $aITO, D.
700 1 $aCARVALHO, J. L. V. de
700 1 $aMOREIRA, C. Q.
700 1 $aALVES, R. M.
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Embrapa Agroindústria de Alimentos (CTAA) |
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