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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
10/08/1998 |
Data da última atualização: |
10/08/1998 |
Autoria: |
MACEDO, M. C. M.; BONO, J. A. M. |
Afiliação: |
EMBRAPA. Centro Nacional de Pesquisa de Gado de Corte (Campo Grande, MS). |
Título: |
Fontes e niveis de fosforo na implantacao de Brachiaria brizantha cultivar Marandu. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 26., 1997, Rio de Janeiro. Informacao, globalizacao, uso do solo. Anais. Rio de Janeiro: Sociedade Brasileira de Ciencia do Solo, 1997. |
Páginas: |
16 par. |
Descrição Física: |
parte de CD-ROM. |
Idioma: |
Português |
Notas: |
CNPGC. |
Conteúdo: |
A capacidade dos solos de Cerrados em suprir fosforo as plantas faz da adubacao fosfatada uma das etapas mais importantes dos sistemas de producao. Uma das alternativas de fontes de P sao fosfatos naturais importados que apresentam eficiencia agronomica superior aos fosfatos naturais brasileiros. Assim este trabalho teve como avaliar os fosfatos naturais de Arad e Carolina do Norte em relacao ao Super Fosfato Triplo. Verificou-se efeito significativo de fontes na producao de materia seca de estabelecimento da forrageira e na eficiencia agronomica dos fosfatos. Observou-se tambem interacao, entre niveis e fontes para o P recuperado em Mehlich-1. |
Palavras-Chave: |
Arad; Brasil; Brazilian savannas; Carolina do Norte; Estabelecimento; Ferrlasols; Fosforo de rocha; Implantacao de pastagem; Latossolo vermelho-escuro; Marandu; Phosphate fertilizers; Soils; Super-phosphate. |
Thesagro: |
Adubação; Brachiaria Brizantha; Cerrado; Fertilizante Fosfatado; Solo; Superfosfato. |
Thesaurus Nal: |
Brazil; fertilizer application; pastures; phosphorus; plant establishment. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01969naa a2200445 a 4500 001 1319290 005 1998-08-10 008 1997 bl uuuu u00u1 u #d 100 1 $aMACEDO, M. C. M. 245 $aFontes e niveis de fosforo na implantacao de Brachiaria brizantha cultivar Marandu. 260 $c1997 300 $a16 par.$cparte de CD-ROM. 500 $aCNPGC. 520 $aA capacidade dos solos de Cerrados em suprir fosforo as plantas faz da adubacao fosfatada uma das etapas mais importantes dos sistemas de producao. Uma das alternativas de fontes de P sao fosfatos naturais importados que apresentam eficiencia agronomica superior aos fosfatos naturais brasileiros. Assim este trabalho teve como avaliar os fosfatos naturais de Arad e Carolina do Norte em relacao ao Super Fosfato Triplo. Verificou-se efeito significativo de fontes na producao de materia seca de estabelecimento da forrageira e na eficiencia agronomica dos fosfatos. Observou-se tambem interacao, entre niveis e fontes para o P recuperado em Mehlich-1. 650 $aBrazil 650 $afertilizer application 650 $apastures 650 $aphosphorus 650 $aplant establishment 650 $aAdubação 650 $aBrachiaria Brizantha 650 $aCerrado 650 $aFertilizante Fosfatado 650 $aSolo 650 $aSuperfosfato 653 $aArad 653 $aBrasil 653 $aBrazilian savannas 653 $aCarolina do Norte 653 $aEstabelecimento 653 $aFerrlasols 653 $aFosforo de rocha 653 $aImplantacao de pastagem 653 $aLatossolo vermelho-escuro 653 $aMarandu 653 $aPhosphate fertilizers 653 $aSoils 653 $aSuper-phosphate 700 1 $aBONO, J. A. M. 773 $tIn: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 26., 1997, Rio de Janeiro. Informacao, globalizacao, uso do solo. Anais. Rio de Janeiro: Sociedade Brasileira de Ciencia do Solo, 1997.
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Embrapa Gado de Corte (CNPGC) |
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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 |
Circulação/Nível: |
A - 3 |
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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