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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
30/12/2020 |
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Data da última atualização: |
15/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOARES, G. F.; RIBEIRO JUNIOR, W. Q.; PEREIRA, L. F.; LIMA, C. A.; SOARES, D. dos S.; MULLER, O.; RASCHER, U.; RAMOS, M. L. G. |
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Afiliação: |
GUILHERME FILGUEIRAS SOARES; WALTER QUADROS RIBEIRO JUNIOR, CPAC; LUCAS FELISBERTO PEREIRA; CRISTIANE ANDRÉA DE LIMA; DAIANE DOS SANTOS SOARES; ONNO MULLER; UWE RASCHER; MARIA LUCRECIA GEROSA RAMOS. |
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Título: |
Characterization of wheat genotypes for drought tolerance and water use efficiency. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Scientia Agricola, v. 78, n. 5, e20190304, 2021. |
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Páginas: |
11 p. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
ABSTRACT: The selection of wheat genotypes according to their drought tolerance is essential to off-season cultivation. The objective of this work was to characterize wheat genotypes through yield and components, morphological characteristics under water stress, and irrigated water use efficiency in the Cerrado region in Brazil. Genotypes were planted during the winters of 2016 and 2017 since there is no precipitation during this season and water levels can be measured. They were then submitted to four water regimes: WR1, WR2, WR3, and WR4, representing 100 %, 83 %, 50 %, and 30 % of evapotranspiration replacement. The following variables were evaluated: peduncle length (PL), number of ears m?2 (NE m?2), hectoliter weight (HW), thousand grain weight (TGW), drought resistance index (DRI), irrigated water use efficiency (IWUE) and yield. Most variables showed correlation with yield and can be a useful tool for breeding programs. PL and HW were best correlated with yield. BRS 264 (irrigated biotype) was productive in treatments receiving the greatest number of irrigation treatments. Given that WR1 registered the highest water level, it was not expected that the rainfed biotype (BR18) would show a higher yield than an irrigated biotype (BRS254). BRS404 (rainfed biotype) was the most productive under moderate stress treatment (WR3). Aliança (rainfed biotype) showed a higher yield under severe stress. Rainfed biotypes presented a higher DRI than the irrigated ones. These genotypes can be used as a reference in breeding programs under each water regime in which their performance was outstanding. None of the variables studied contributed to the selection of the most efficient wheat genotypes in the IWUE. Keywords: Triticum aestivum, plant phenotyping, water regimes, irrigation gradient MenosABSTRACT: The selection of wheat genotypes according to their drought tolerance is essential to off-season cultivation. The objective of this work was to characterize wheat genotypes through yield and components, morphological characteristics under water stress, and irrigated water use efficiency in the Cerrado region in Brazil. Genotypes were planted during the winters of 2016 and 2017 since there is no precipitation during this season and water levels can be measured. They were then submitted to four water regimes: WR1, WR2, WR3, and WR4, representing 100 %, 83 %, 50 %, and 30 % of evapotranspiration replacement. The following variables were evaluated: peduncle length (PL), number of ears m?2 (NE m?2), hectoliter weight (HW), thousand grain weight (TGW), drought resistance index (DRI), irrigated water use efficiency (IWUE) and yield. Most variables showed correlation with yield and can be a useful tool for breeding programs. PL and HW were best correlated with yield. BRS 264 (irrigated biotype) was productive in treatments receiving the greatest number of irrigation treatments. Given that WR1 registered the highest water level, it was not expected that the rainfed biotype (BR18) would show a higher yield than an irrigated biotype (BRS254). BRS404 (rainfed biotype) was the most productive under moderate stress treatment (WR3). Aliança (rainfed biotype) showed a higher yield under severe stress. Rainfed biotypes presented a higher DRI than the irrigated ones. These genotypes... Mostrar Tudo |
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Palavras-Chave: |
Fenotipagem de planta; Gradiente de irrigação; Regime hídrico. |
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Thesagro: |
Genótipo; Irrigação; Morfologia Vegetal; Trigo; Triticum Aestivum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/226979/1/Characterization-of-wheat-genotypes-for-drought-Walter.pdf
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Marc: |
LEADER 02683naa a2200313 a 4500
001 2135366
005 2021-10-15
008 2021 bl uuuu u00u1 u #d
100 1 $aSOARES, G. F.
245 $aCharacterization of wheat genotypes for drought tolerance and water use efficiency.$h[electronic resource]
260 $c2021
300 $a11 p.
520 $aABSTRACT: The selection of wheat genotypes according to their drought tolerance is essential to off-season cultivation. The objective of this work was to characterize wheat genotypes through yield and components, morphological characteristics under water stress, and irrigated water use efficiency in the Cerrado region in Brazil. Genotypes were planted during the winters of 2016 and 2017 since there is no precipitation during this season and water levels can be measured. They were then submitted to four water regimes: WR1, WR2, WR3, and WR4, representing 100 %, 83 %, 50 %, and 30 % of evapotranspiration replacement. The following variables were evaluated: peduncle length (PL), number of ears m?2 (NE m?2), hectoliter weight (HW), thousand grain weight (TGW), drought resistance index (DRI), irrigated water use efficiency (IWUE) and yield. Most variables showed correlation with yield and can be a useful tool for breeding programs. PL and HW were best correlated with yield. BRS 264 (irrigated biotype) was productive in treatments receiving the greatest number of irrigation treatments. Given that WR1 registered the highest water level, it was not expected that the rainfed biotype (BR18) would show a higher yield than an irrigated biotype (BRS254). BRS404 (rainfed biotype) was the most productive under moderate stress treatment (WR3). Aliança (rainfed biotype) showed a higher yield under severe stress. Rainfed biotypes presented a higher DRI than the irrigated ones. These genotypes can be used as a reference in breeding programs under each water regime in which their performance was outstanding. None of the variables studied contributed to the selection of the most efficient wheat genotypes in the IWUE. Keywords: Triticum aestivum, plant phenotyping, water regimes, irrigation gradient
650 $aGenótipo
650 $aIrrigação
650 $aMorfologia Vegetal
650 $aTrigo
650 $aTriticum Aestivum
653 $aFenotipagem de planta
653 $aGradiente de irrigação
653 $aRegime hídrico
700 1 $aRIBEIRO JUNIOR, W. Q.
700 1 $aPEREIRA, L. F.
700 1 $aLIMA, C. A.
700 1 $aSOARES, D. dos S.
700 1 $aMULLER, O.
700 1 $aRASCHER, U.
700 1 $aRAMOS, M. L. G.
773 $tScientia Agricola$gv. 78, n. 5, e20190304, 2021.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
05/07/1996 |
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Data da última atualização: |
10/04/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - B |
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Autoria: |
MORAES, G. J. de; DRUMOND, M. A. |
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Afiliação: |
GILBERTO JOSÉ DE MORAES, CPATSA; MARCOS ANTONIO DRUMOND, CPATSA. |
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Título: |
Surto de Tetranychus bastosi (Acarina: Tetranychidae) em Cnidoscolus phyllacanthus. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Revista Arvore, Vicosa, MG, v. 4, n. 2, p. 227-229, 1980. |
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Idioma: |
Português |
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Conteúdo: |
Cnidoscolus phyllacanthus Pax & Hoffm. (faveleira) e uma planta xerofita da familia Euphorbiaceae, de porte arboreo, com ate 5 m de altura, galhos quase que em posicao vertical, folhas profundamente recortadas e providas de aculeos no limbo e espinhos nas nervuras. As flores sao alvas, dispostas em pequenos cachos axilares e terminais, e os frutos sao em forma de capsulas deiscentes providas de sementes semelhantes as de mamona (2). As folhas maduras e a casca dessa planta servem de otima forragem para os caprinos, asininos e bovinos. Entretanto, a grande importancia de C.phyllacanthus esta em suas sementes, que dao a essa planta posicao destacada como produtora de oleo alimenticio e de farinha, esta rica em sais minerais e, principalmente em proteinas. Gracas a essas caracteristicas, diversos estudos vem sendo conduzidos, visando a seu aproveitamento na alimentacao animal. Nos municipios de Petrolina-PE, Santa Maria da Boa Vista-PE e Souza-PB,observou-se uma incidencia severa de Tetranychus bastosi Tuttle, Baker & Sales em plantas de C.phyllacanthus em diferentes estadios de desenvolvimento, causando amarelecimento e queda prematura das folhas. Esse surto ocorreu apos as primeiras precipitacoes da estacao chuvosa de 1979/80, quando as primeiras folhas comecaram a aparecer, prejudicando o desenvolvimento normal das plantas. E provavel que a ocorrencia desse acaro em C.phyllacanthus seja bastante generalizada em todo o tropico semi-arido. |
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Palavras-Chave: |
Cnidosculos phyllacanthus; Disease; Favela; Insect; Mite; Tetranychus batosi. |
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Thesagro: |
Ácaro; Cnidoscolus Phyllacanthus; Doença; Folha; Hospedeiro; Inseto. |
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Thesaurus NAL: |
Acari; hosts; leaves. |
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Categoria do assunto: |
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O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/158784/1/Gilberto.pdf
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Marc: |
LEADER 02255naa a2200313 a 4500
001 1132610
005 2017-04-10
008 1980 bl uuuu u00u1 u #d
100 1 $aMORAES, G. J. de
245 $aSurto de Tetranychus bastosi (Acarina$bTetranychidae) em Cnidoscolus phyllacanthus.
260 $c1980
520 $aCnidoscolus phyllacanthus Pax & Hoffm. (faveleira) e uma planta xerofita da familia Euphorbiaceae, de porte arboreo, com ate 5 m de altura, galhos quase que em posicao vertical, folhas profundamente recortadas e providas de aculeos no limbo e espinhos nas nervuras. As flores sao alvas, dispostas em pequenos cachos axilares e terminais, e os frutos sao em forma de capsulas deiscentes providas de sementes semelhantes as de mamona (2). As folhas maduras e a casca dessa planta servem de otima forragem para os caprinos, asininos e bovinos. Entretanto, a grande importancia de C.phyllacanthus esta em suas sementes, que dao a essa planta posicao destacada como produtora de oleo alimenticio e de farinha, esta rica em sais minerais e, principalmente em proteinas. Gracas a essas caracteristicas, diversos estudos vem sendo conduzidos, visando a seu aproveitamento na alimentacao animal. Nos municipios de Petrolina-PE, Santa Maria da Boa Vista-PE e Souza-PB,observou-se uma incidencia severa de Tetranychus bastosi Tuttle, Baker & Sales em plantas de C.phyllacanthus em diferentes estadios de desenvolvimento, causando amarelecimento e queda prematura das folhas. Esse surto ocorreu apos as primeiras precipitacoes da estacao chuvosa de 1979/80, quando as primeiras folhas comecaram a aparecer, prejudicando o desenvolvimento normal das plantas. E provavel que a ocorrencia desse acaro em C.phyllacanthus seja bastante generalizada em todo o tropico semi-arido.
650 $aAcari
650 $ahosts
650 $aleaves
650 $aÁcaro
650 $aCnidoscolus Phyllacanthus
650 $aDoença
650 $aFolha
650 $aHospedeiro
650 $aInseto
653 $aCnidosculos phyllacanthus
653 $aDisease
653 $aFavela
653 $aInsect
653 $aMite
653 $aTetranychus batosi
700 1 $aDRUMOND, M. A.
773 $tRevista Arvore, Vicosa, MG$gv. 4, n. 2, p. 227-229, 1980.
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Embrapa Semiárido (CPATSA) |
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