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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
18/10/2021 |
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Data da última atualização: |
18/10/2021 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
SIMEONE, M. L. F.; MAGALHAES, P. C.; CARNEIRO, N. P.; GOMES JÚNIOR, C. C.; AVILA, R. G.; SOUZA, T. C. de; OLIVEIRA, A. C. de. |
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Afiliação: |
MARIA LUCIA FERREIRA SIMEONE, CNPMS; PAULO CESAR MAGALHAES, CNPMS; NEWTON PORTILHO CARNEIRO, CNPMS; CARLOS CÉSAR GOMES JÚNIOR, Universidade Federal de Alfenas; RONIEL GERALDO AVILA, Instituto Federal Goiano; THIAGO CORRÊA DE SOUZA, Universidade Federal de Alfenas; ANTONIO CARLOS DE OLIVEIRA, CNPMS. |
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Título: |
Ecophysiological characterization of sorghum genotypes submitted to water deficit tolerance. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: GOES, R. J. (org.). Cadeias produtivas e novas tecnologias: aspectos econômicos, ecológicos e sociais. Ponta Grossa: Atena, 2021. |
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Páginas: |
p. 69-83. |
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Idioma: |
Inglês |
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Conteúdo: |
Sorghum [Sorghum bicolor (L.)] is one of the most drought tolerant cereal and many studies have been done to understand the mechanisms involved in this process. In this work, we evaluated in the greenhouse the effects of different levels of water stress on the ecophysiological characteristics and accumulation of soluble sugars in two contrasting sorghum [Sorghum bicolor (L.) Moench] inbred lines for drought tolerance: 9910032 (tolerant) and 9618158 (sensitive). Water stress was imposed in both genotypes at pre-flowering growth stage for two different time exposure: mild (6 days of drought); severe (12 days). Recovery treatments for each drought treatment were also done at six days after the stress. Sensitive and tolerant genotypes showed lower stomatal conductance and leaf water potential for all types of stress when compared to irrigated treatments. An increase in total soluble sugar content was observed in leafs of the two sorghum genotypes however higher in the tolerant line. Overall, the genotype 9910032 presented higher photosynthetic rate and grain yield in relation to the sensitive genotype 9615818, in the same water condition. These results indicated that sugar content is modified under water deficit conditions indicating that if might be involved in plant protection. |
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Palavras-Chave: |
Açúcares solúveis; Caracterização ecofisiológica; Déficit hídrico; Taxa fotossintética. |
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Thesagro: |
Deficiência Hídrica; Evapotranspiração; Grão; Rendimento; Resistência a Seca; Sorgo. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227013/1/Ecophysiological-characterization.pdf
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Marc: |
LEADER 02336naa a2200325 a 4500
001 2135400
005 2021-10-18
008 2021 bl uuuu u00u1 u #d
100 1 $aSIMEONE, M. L. F.
245 $aEcophysiological characterization of sorghum genotypes submitted to water deficit tolerance.$h[electronic resource]
260 $c2021
300 $ap. 69-83.
520 $aSorghum [Sorghum bicolor (L.)] is one of the most drought tolerant cereal and many studies have been done to understand the mechanisms involved in this process. In this work, we evaluated in the greenhouse the effects of different levels of water stress on the ecophysiological characteristics and accumulation of soluble sugars in two contrasting sorghum [Sorghum bicolor (L.) Moench] inbred lines for drought tolerance: 9910032 (tolerant) and 9618158 (sensitive). Water stress was imposed in both genotypes at pre-flowering growth stage for two different time exposure: mild (6 days of drought); severe (12 days). Recovery treatments for each drought treatment were also done at six days after the stress. Sensitive and tolerant genotypes showed lower stomatal conductance and leaf water potential for all types of stress when compared to irrigated treatments. An increase in total soluble sugar content was observed in leafs of the two sorghum genotypes however higher in the tolerant line. Overall, the genotype 9910032 presented higher photosynthetic rate and grain yield in relation to the sensitive genotype 9615818, in the same water condition. These results indicated that sugar content is modified under water deficit conditions indicating that if might be involved in plant protection.
650 $aDeficiência Hídrica
650 $aEvapotranspiração
650 $aGrão
650 $aRendimento
650 $aResistência a Seca
650 $aSorgo
653 $aAçúcares solúveis
653 $aCaracterização ecofisiológica
653 $aDéficit hídrico
653 $aTaxa fotossintética
700 1 $aMAGALHAES, P. C.
700 1 $aCARNEIRO, N. P.
700 1 $aGOMES JÚNIOR, C. C.
700 1 $aAVILA, R. G.
700 1 $aSOUZA, T. C. de
700 1 $aOLIVEIRA, A. C. de
773 $tIn: GOES, R. J. (org.). Cadeias produtivas e novas tecnologias: aspectos econômicos, ecológicos e sociais. Ponta Grossa: Atena, 2021.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| 2. |  | GUERRA, J. G. M. Prefácio. In: ARAUJO, F. de CA. D.; DIAS, A. (org.). Ensino, pesquisa e extensão em agroecologia e agricultura orgânica: dez anos do Programa de Pós-Graduação em Agricultura Orgânica. Seropédica: PPGAO, 2022. Comissão Editorial: Adriana Maria de Aquino, Anelise Dias, Higino Marcos Lopes, Maria Fernanda de Albuquerque, Costa Fonseca, Renato Linhares de Assis.| Tipo: Nota Técnica/Nota Científica |
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