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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
04/12/2023 |
Data da última atualização: |
04/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MATA, C. R. da; CASTRO, A. P. de; LANNA, A. C.; BORTOLINI, J. C.; MORAES, M. G. de. |
Afiliação: |
CRISTIANE RIBEIRO DA MATA, UNIVERSIDADE FEDERAL DE GOIÁS; ADRIANO PEREIRA DE CASTRO, CNPAF; ANNA CRISTINA LANNA, CNPAF; JASCIELI CARLA BORTOLINI; MOEMY GOMES DE MORAES, UNIVERSIDADE FEDERAL DE GOIÁS. |
Título: |
Physiological and yield responses of contrasting upland rice genotypes towards induced drought. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Physiology and Molecular Biology of Plants, v. 29, n. 2, p. 305–317, Feb. 2023. |
ISSN: |
0971-5894 |
DOI: |
https://doi.org/10.1007/s12298-023-01287-8 |
Idioma: |
Inglês |
Conteúdo: |
Drought alters rice morphophysiology and reduces grain yield. This study hypothesized that the combined analysis of morphophysiological and agronomic traits enables a systemic approach to responses to water deficit, allowing the selection of resistance markers to upland rice. The objectives were to evaluate the effects of water deficit applied at the reproductive stage in plant water status, leaf gas exchanges, leaf non-structural carbohydrate contents, and agronomic traits in upland rice genotypes; and to verify if the analyzed variables may be applied to group the genotypes according to their tolerance level. Water deficit was induced by irrigation suppression in eight genotypes at R2-R3. Physiological and biochemical traits were evaluated at the end of the water deficit period, thenceforth irrigation was restored until grain maturation for the analysis of the agronomic traits. Water deficit reduced: Ψw (63.64%, average); gs (28–90%); transpiration rate (40.63–65.45%); RWC from Serra Dourada to Esmeralda (43.36–61.48%); net CO2 assimilation from Serra Dourada to Primavera (70.04–99.91%); iWUE from Esmeralda to Primavera (83.98–99.85%); iCE in Esmeralda (99.92%); 100-grain weight in CIRAD and Soberana (13.65–20.63%); and grain yield from Primavera to IAC 164 (34.60–78.85%). Water deficit increased Ci from Cambará to Early mutant (79.64–215.23%), and did not affect the tiller number, shoot dry biomass, fructose, and sucrose contents. The alterations in the variables distinguished groups according to the water regime. RWC, Ψw, leaf gas exchanges, and iCE were valuable traits to distinguish the water regime treatments, but not to group the genotypes according to the drought tolerance level. MenosDrought alters rice morphophysiology and reduces grain yield. This study hypothesized that the combined analysis of morphophysiological and agronomic traits enables a systemic approach to responses to water deficit, allowing the selection of resistance markers to upland rice. The objectives were to evaluate the effects of water deficit applied at the reproductive stage in plant water status, leaf gas exchanges, leaf non-structural carbohydrate contents, and agronomic traits in upland rice genotypes; and to verify if the analyzed variables may be applied to group the genotypes according to their tolerance level. Water deficit was induced by irrigation suppression in eight genotypes at R2-R3. Physiological and biochemical traits were evaluated at the end of the water deficit period, thenceforth irrigation was restored until grain maturation for the analysis of the agronomic traits. Water deficit reduced: Ψw (63.64%, average); gs (28–90%); transpiration rate (40.63–65.45%); RWC from Serra Dourada to Esmeralda (43.36–61.48%); net CO2 assimilation from Serra Dourada to Primavera (70.04–99.91%); iWUE from Esmeralda to Primavera (83.98–99.85%); iCE in Esmeralda (99.92%); 100-grain weight in CIRAD and Soberana (13.65–20.63%); and grain yield from Primavera to IAC 164 (34.60–78.85%). Water deficit increased Ci from Cambará to Early mutant (79.64–215.23%), and did not affect the tiller number, shoot dry biomass, fructose, and sucrose contents. The alterations in the variables distingu... Mostrar Tudo |
Thesagro: |
Arroz; Deficiência Hídrica; Genótipo; Oryza Sativa; Seca. |
Thesaurus Nal: |
Genotype-environment interaction; Rice; Soil water deficit; Stress tolerance; Water stress. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02681naa a2200313 a 4500 001 2159090 005 2023-12-04 008 2023 bl uuuu u00u1 u #d 022 $a0971-5894 024 7 $ahttps://doi.org/10.1007/s12298-023-01287-8$2DOI 100 1 $aMATA, C. R. da 245 $aPhysiological and yield responses of contrasting upland rice genotypes towards induced drought.$h[electronic resource] 260 $c2023 520 $aDrought alters rice morphophysiology and reduces grain yield. This study hypothesized that the combined analysis of morphophysiological and agronomic traits enables a systemic approach to responses to water deficit, allowing the selection of resistance markers to upland rice. The objectives were to evaluate the effects of water deficit applied at the reproductive stage in plant water status, leaf gas exchanges, leaf non-structural carbohydrate contents, and agronomic traits in upland rice genotypes; and to verify if the analyzed variables may be applied to group the genotypes according to their tolerance level. Water deficit was induced by irrigation suppression in eight genotypes at R2-R3. Physiological and biochemical traits were evaluated at the end of the water deficit period, thenceforth irrigation was restored until grain maturation for the analysis of the agronomic traits. Water deficit reduced: Ψw (63.64%, average); gs (28–90%); transpiration rate (40.63–65.45%); RWC from Serra Dourada to Esmeralda (43.36–61.48%); net CO2 assimilation from Serra Dourada to Primavera (70.04–99.91%); iWUE from Esmeralda to Primavera (83.98–99.85%); iCE in Esmeralda (99.92%); 100-grain weight in CIRAD and Soberana (13.65–20.63%); and grain yield from Primavera to IAC 164 (34.60–78.85%). Water deficit increased Ci from Cambará to Early mutant (79.64–215.23%), and did not affect the tiller number, shoot dry biomass, fructose, and sucrose contents. The alterations in the variables distinguished groups according to the water regime. RWC, Ψw, leaf gas exchanges, and iCE were valuable traits to distinguish the water regime treatments, but not to group the genotypes according to the drought tolerance level. 650 $aGenotype-environment interaction 650 $aRice 650 $aSoil water deficit 650 $aStress tolerance 650 $aWater stress 650 $aArroz 650 $aDeficiência Hídrica 650 $aGenótipo 650 $aOryza Sativa 650 $aSeca 700 1 $aCASTRO, A. P. de 700 1 $aLANNA, A. C. 700 1 $aBORTOLINI, J. C. 700 1 $aMORAES, M. G. de 773 $tPhysiology and Molecular Biology of Plants$gv. 29, n. 2, p. 305–317, Feb. 2023.
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Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
30/11/1993 |
Data da última atualização: |
15/06/2022 |
Autoria: |
COSTA, N. A. da; LOURENCO JUNIOR, J. de B.; CARVALHO, L. O. D. de M. |
Afiliação: |
NORTON AMADOR DA COSTA, CPATU; JOSE DE BRITO LOURENCO JUNIOR, CPATU; LUIZ OCTAVIO DANIN DE M CARVALHO, CPATU. |
Título: |
Bubalinos: manejo. |
Ano de publicação: |
1988 |
Fonte/Imprenta: |
Belém, PA: EMBRAPA-CPATU, 1988. |
Páginas: |
3 p. |
Série: |
(EMBRAPA-CPATU. Recomendações básicas, 7). |
Idioma: |
Português |
Conteúdo: |
Introdução; Manejo de touros; Manejo de vacas e novilhas; Manejo de machos e femeas de cria; Manejo de bezerro; Manejo sanitário; Outras práticas de manejo. |
Palavras-Chave: |
Brasil; Bubalino; Bubalinos; Buffalo; Management. |
Thesagro: |
Bubalus Bubalis; Búfalo; Manejo; Pecuária; Produção. |
Thesaurus NAL: |
Amazonia; cattle breeding. |
Categoria do assunto: |
-- L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/34619/1/RecBas-07.pdf
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Marc: |
LEADER 00894nam a2200301 a 4500 001 1381212 005 2022-06-15 008 1988 bl uuuu u0uu1 u #d 100 1 $aCOSTA, N. A. da 245 $aBubalinos$bmanejo. 260 $aBelém, PA: EMBRAPA-CPATU$c1988 300 $a3 p. 490 $a(EMBRAPA-CPATU. Recomendações básicas, 7). 520 $aIntrodução; Manejo de touros; Manejo de vacas e novilhas; Manejo de machos e femeas de cria; Manejo de bezerro; Manejo sanitário; Outras práticas de manejo. 650 $aAmazonia 650 $acattle breeding 650 $aBubalus Bubalis 650 $aBúfalo 650 $aManejo 650 $aPecuária 650 $aProdução 653 $aBrasil 653 $aBubalino 653 $aBubalinos 653 $aBuffalo 653 $aManagement 700 1 $aLOURENCO JUNIOR, J. de B. 700 1 $aCARVALHO, L. O. D. de M.
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