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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
09/11/2020 |
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Data da última atualização: |
29/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LANNA, A. C.; COELHO, G. R. C.; MOREIRA, A. S.; TERRA, T. G. R.; BRONDANI, C.; SARAIVA, G. R.; LEMOS, F. da S.; GUIMARÃES, P. H. R.; MORAIS JÚNIOR, O. P.; VIANELLO, R. P. |
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Afiliação: |
ANNA CRISTINA LANNA, CNPAF; GESIMARIA RIBEIRO COSTA COELHO, CNPAF; ALECIO SOUZA MOREIRA, CNPMF; THIAGO GLEDSON RIOS TERRA, UNIVERSIDADE FEDERAL DO TOCANTINS; CLAUDIO BRONDANI, CNPAF; GABRIEL RIOS SARAIBA, UNI-ANHANGUERA; FREDERICO DA SILVA LEMOS, UNI-ANHANGUERA; PEDRO HENRIQUE RAMOS GUIMARAES, UFG; ODILON PEIXOTO MORAIS JUNIOR, UFG; ROSANA PEREIRA VIANELLO, CNPAF. |
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Título: |
Upland rice: phenotypic diversity for drought tolerance. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Scientia Agricola, v. 78, n. 5, e20190338, 2021. |
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ISSN: |
1678-992X |
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DOI: |
http://doi.org/10.1590/1678-992X-2019-0338 |
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Idioma: |
Inglês |
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Conteúdo: |
Upland rice is cultivated mostly in Latin America and Africa by small farmers and in areas with risk of dry spells. This study evaluated morphophysiological mechanisms of upland rice associated to drought adaptation. A set of 25 upland rice genotypes were grown in a plant phenotyping platform during 2015 and 2017 under regular irrigation and water restriction. We evaluated morphophysiological traits in shoots (vegetative structures growth, gas exchange, water use efficiency, carboxylation efficiency, water status) and roots (length, surface area, volume and diameter), as well as agronomic traits (grain yield and its components). There was a reduction in grain yield by up to 54 % and 58 % in 2015 and 2017, respectively, under water deficit. Five upland rice genotypes with the best yield performances in both water treatments applied were recommended to the upland rice-breeding program: Bico Ganga, BRS Esmeralda, BRSMG Curinga, Guarani, and Rabo de Burro. In this study, morphophysiological traits associated to drought tolerance concerned the plant high capacity to save water in the leaves, low leaf water potential, high ability to reduce vegetative structures, high water use efficiency, high photosynthetic capacity, and improved capacity to absorb water from drying soil, either by osmotic adjustment or additional investment into the root system. Therefore, we concluded that different secondary traits contributed to drought tolerance and should be evaluated along with grain yield to improve efficiency of breeding selection. MenosUpland rice is cultivated mostly in Latin America and Africa by small farmers and in areas with risk of dry spells. This study evaluated morphophysiological mechanisms of upland rice associated to drought adaptation. A set of 25 upland rice genotypes were grown in a plant phenotyping platform during 2015 and 2017 under regular irrigation and water restriction. We evaluated morphophysiological traits in shoots (vegetative structures growth, gas exchange, water use efficiency, carboxylation efficiency, water status) and roots (length, surface area, volume and diameter), as well as agronomic traits (grain yield and its components). There was a reduction in grain yield by up to 54 % and 58 % in 2015 and 2017, respectively, under water deficit. Five upland rice genotypes with the best yield performances in both water treatments applied were recommended to the upland rice-breeding program: Bico Ganga, BRS Esmeralda, BRSMG Curinga, Guarani, and Rabo de Burro. In this study, morphophysiological traits associated to drought tolerance concerned the plant high capacity to save water in the leaves, low leaf water potential, high ability to reduce vegetative structures, high water use efficiency, high photosynthetic capacity, and improved capacity to absorb water from drying soil, either by osmotic adjustment or additional investment into the root system. Therefore, we concluded that different secondary traits contributed to drought tolerance and should be evaluated along with grain yiel... Mostrar Tudo |
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Palavras-Chave: |
Water status. |
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Thesagro: |
Arroz; Oryza Sativa; Resistência a Seca; Seleção Fenótipa. |
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Thesaurus Nal: |
Gas exchange; Grain yield; Rice; Root systems; Vegetative growth. |
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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/217576/1/SciAgric-2021.pdf
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Marc: |
LEADER 02573naa a2200373 a 4500
001 2126397
005 2021-11-29
008 2021 bl uuuu u00u1 u #d
022 $a1678-992X
024 7 $ahttp://doi.org/10.1590/1678-992X-2019-0338$2DOI
100 1 $aLANNA, A. C.
245 $aUpland rice$bphenotypic diversity for drought tolerance.$h[electronic resource]
260 $c2021
520 $aUpland rice is cultivated mostly in Latin America and Africa by small farmers and in areas with risk of dry spells. This study evaluated morphophysiological mechanisms of upland rice associated to drought adaptation. A set of 25 upland rice genotypes were grown in a plant phenotyping platform during 2015 and 2017 under regular irrigation and water restriction. We evaluated morphophysiological traits in shoots (vegetative structures growth, gas exchange, water use efficiency, carboxylation efficiency, water status) and roots (length, surface area, volume and diameter), as well as agronomic traits (grain yield and its components). There was a reduction in grain yield by up to 54 % and 58 % in 2015 and 2017, respectively, under water deficit. Five upland rice genotypes with the best yield performances in both water treatments applied were recommended to the upland rice-breeding program: Bico Ganga, BRS Esmeralda, BRSMG Curinga, Guarani, and Rabo de Burro. In this study, morphophysiological traits associated to drought tolerance concerned the plant high capacity to save water in the leaves, low leaf water potential, high ability to reduce vegetative structures, high water use efficiency, high photosynthetic capacity, and improved capacity to absorb water from drying soil, either by osmotic adjustment or additional investment into the root system. Therefore, we concluded that different secondary traits contributed to drought tolerance and should be evaluated along with grain yield to improve efficiency of breeding selection.
650 $aGas exchange
650 $aGrain yield
650 $aRice
650 $aRoot systems
650 $aVegetative growth
650 $aArroz
650 $aOryza Sativa
650 $aResistência a Seca
650 $aSeleção Fenótipa
653 $aWater status
700 1 $aCOELHO, G. R. C.
700 1 $aMOREIRA, A. S.
700 1 $aTERRA, T. G. R.
700 1 $aBRONDANI, C.
700 1 $aSARAIVA, G. R.
700 1 $aLEMOS, F. da S.
700 1 $aGUIMARÃES, P. H. R.
700 1 $aMORAIS JÚNIOR, O. P.
700 1 $aVIANELLO, R. P.
773 $tScientia Agricola$gv. 78, n. 5, e20190338, 2021.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | LANNA, A. C.; COELHO, G. R. C.; MOREIRA, A. S.; TERRA, T. G. R.; BRONDANI, C.; SARAIVA, G. R.; LEMOS, F. da S.; GUIMARÃES, P. H. R.; MORAIS JÚNIOR, O. P.; VIANELLO, R. P. Upland rice: phenotypic diversity for drought tolerance. Scientia Agricola, v. 78, n. 5, e20190338, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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