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| Registros recuperados : 155 | |
| Registros recuperados : 155 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Clima Temperado. |
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Data corrente: |
16/04/2007 |
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Data da última atualização: |
24/04/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SANTOS, M. P. dos; ZANON, A. J.; CUADRA, S. V.; STEINMETZ, S.; CASTRO, J. R. de; HEINEMANN, A. B. |
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Afiliação: |
MARCOS PAULO DOS SANTOS, UNIVERSIDADE FEDERAL DE GOIÁS; ALENCAR JUNIOR ZANON, IRGA; SANTIAGO VIANNA CUADRA, CPACT; SILVIO STEINMETZ, CPACT; JOAO RODRIGO DE CASTRO, UNIVERSIDADE FEDERAL DE GOIÁS; ALEXANDRE BRYAN HEINEMANN, CNPAF. |
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Título: |
Yield and morphophysiological indices of irrigated rice genotypes in contrasting ecosystems. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Tropical, Goiânia, v. 47, n. 3, p. 253-264, jul./set. 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
Rice phenology and development are events controlled by environmental and genetic factors, and the yield potential of the crop is defined by their interaction. This study aimed at analyzing the performance of irrigated rice genotypes in contrasting ecosystems and their effects on morphophysiological characteristics. Two ecosystems (tropical and subtropical) were analyzed, as well as cultivars recommended for tropical (BRS Catiana and BRS Jaçanã) and subtropical (BRS Pampa, BRS 7 Taim and IRGA 424) regions. The experiments were arranged in a complete randomized block design, with four replicates, being the factors the genotypes, sowing times and sites. The phenological development, biomass dynamics, radiation use efficiency and grain yield were evaluated. The accumulated degree-days demand for flowering decreased faster in the tropical ecosystem than in the subtropical ecosystem for late sowing. The radiation use efficiency values were similar in the subtropical ecosystem and yield was high for all sowing dates. On the other hand, the tropical ecosystem showed a high variation for radiation use efficiency values and yield. The higher accumulation of degree-days and solar radiation during the reproductive and grain-filling phases contributed to increase yield in both ecosystems. |
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Palavras-Chave: |
Ecofisiologia. |
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Thesagro: |
Arroz irrigado; Época de semeadura; Oryza sativa; Radiação solar. |
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Thesaurus NAL: |
Ecophysiology; Ecosystems; Rice; Solar radiation; Sowing date. |
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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/163612/1/Silvio-CNPAF-2017-pat-Incluido.pdf
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Marc: |
LEADER 02177naa a2200301 a 4500
001 2075245
005 2018-04-24
008 2017 bl uuuu u00u1 u #d
100 1 $aSANTOS, M. P. dos
245 $aYield and morphophysiological indices of irrigated rice genotypes in contrasting ecosystems.$h[electronic resource]
260 $c2017
520 $aRice phenology and development are events controlled by environmental and genetic factors, and the yield potential of the crop is defined by their interaction. This study aimed at analyzing the performance of irrigated rice genotypes in contrasting ecosystems and their effects on morphophysiological characteristics. Two ecosystems (tropical and subtropical) were analyzed, as well as cultivars recommended for tropical (BRS Catiana and BRS Jaçanã) and subtropical (BRS Pampa, BRS 7 Taim and IRGA 424) regions. The experiments were arranged in a complete randomized block design, with four replicates, being the factors the genotypes, sowing times and sites. The phenological development, biomass dynamics, radiation use efficiency and grain yield were evaluated. The accumulated degree-days demand for flowering decreased faster in the tropical ecosystem than in the subtropical ecosystem for late sowing. The radiation use efficiency values were similar in the subtropical ecosystem and yield was high for all sowing dates. On the other hand, the tropical ecosystem showed a high variation for radiation use efficiency values and yield. The higher accumulation of degree-days and solar radiation during the reproductive and grain-filling phases contributed to increase yield in both ecosystems.
650 $aEcophysiology
650 $aEcosystems
650 $aRice
650 $aSolar radiation
650 $aSowing date
650 $aArroz irrigado
650 $aÉpoca de semeadura
650 $aOryza sativa
650 $aRadiação solar
653 $aEcofisiologia
700 1 $aZANON, A. J.
700 1 $aCUADRA, S. V.
700 1 $aSTEINMETZ, S.
700 1 $aCASTRO, J. R. de
700 1 $aHEINEMANN, A. B.
773 $tPesquisa Agropecuária Tropical, Goiânia$gv. 47, n. 3, p. 253-264, jul./set. 2017.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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