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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
24/01/2019 |
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Data da última atualização: |
24/01/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUIMARÃES, C. M.; STONE, L. F.; SILVEIRA, P. M. da. |
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Afiliação: |
CLEBER MORAIS GUIMARAES, CNPAF; LUIS FERNANDO STONE, CNPAF; PEDRO MARQUES DA SILVEIRA, CNPAF. |
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Título: |
Morphological and physiological traits of upland rice cultivars affected by water deficit. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista Brasileira de Agricultura Irrigada, v. 12, n. 6, p. 3058-3068, 2018. |
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ISSN: |
1982-7679 |
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DOI: |
10.7127/rbai.v12n6001010 |
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Idioma: |
Inglês |
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Conteúdo: |
The use of drought-tolerant cultivars is a promising strategy to minimize the effects of water deficits on upland rice productivity. Therefore, it is important to establish an adequate methodology to evaluate the performance of upland rice cultivars under water deficit. In this study, one evaluated the effects of water deficit on morphological and physiological traits of two upland rice cultivars, in a greenhouse, in soil columns, using a phenotyping platform named SITIS. The experiment occurred in a complete randomized block design, in a split plot scheme with four replications. The main plots consisted of a well-irrigated treatment with daily replacement of 100% evapotranspired water and four water restriction regimes (daily replacement of 20%, 40%, 60% and 80% evapotranspired water at the well-irrigated treatment) and, the subplots, of the Douradão and BRS Soberana cultivars, which are tolerant and sensitive to water stress, respectively. It is feasible to use the SITIS platform and the proposed protocol (water regimes) to evaluate upland rice cultivars for tolerance to water stress. Under water deficit, the Douradão cultivar restricted its transpiration and showed harvest index, grain yield and water use efficiency higher than the BRS Soberana cultivar. |
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Palavras-Chave: |
Leaf diffusive; Leaf temperature. |
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Thesagro: |
Arroz; Deficiência Hídrica; Oryza Sativa. |
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Thesaurus Nal: |
Genotype-phenotype correlation; Leaf water potential; Rice; Soil water deficit. |
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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/191314/1/CNPAF-2018-rbai.pdf
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Marc: |
LEADER 02125naa a2200277 a 4500
001 2104760
005 2019-01-24
008 2018 bl uuuu u00u1 u #d
022 $a1982-7679
024 7 $a10.7127/rbai.v12n6001010$2DOI
100 1 $aGUIMARÃES, C. M.
245 $aMorphological and physiological traits of upland rice cultivars affected by water deficit.$h[electronic resource]
260 $c2018
520 $aThe use of drought-tolerant cultivars is a promising strategy to minimize the effects of water deficits on upland rice productivity. Therefore, it is important to establish an adequate methodology to evaluate the performance of upland rice cultivars under water deficit. In this study, one evaluated the effects of water deficit on morphological and physiological traits of two upland rice cultivars, in a greenhouse, in soil columns, using a phenotyping platform named SITIS. The experiment occurred in a complete randomized block design, in a split plot scheme with four replications. The main plots consisted of a well-irrigated treatment with daily replacement of 100% evapotranspired water and four water restriction regimes (daily replacement of 20%, 40%, 60% and 80% evapotranspired water at the well-irrigated treatment) and, the subplots, of the Douradão and BRS Soberana cultivars, which are tolerant and sensitive to water stress, respectively. It is feasible to use the SITIS platform and the proposed protocol (water regimes) to evaluate upland rice cultivars for tolerance to water stress. Under water deficit, the Douradão cultivar restricted its transpiration and showed harvest index, grain yield and water use efficiency higher than the BRS Soberana cultivar.
650 $aGenotype-phenotype correlation
650 $aLeaf water potential
650 $aRice
650 $aSoil water deficit
650 $aArroz
650 $aDeficiência Hídrica
650 $aOryza Sativa
653 $aLeaf diffusive
653 $aLeaf temperature
700 1 $aSTONE, L. F.
700 1 $aSILVEIRA, P. M. da
773 $tRevista Brasileira de Agricultura Irrigada$gv. 12, n. 6, p. 3058-3068, 2018.
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