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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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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio-Norte. Para informações adicionais entre em contato com cpamn.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
23/04/1999 |
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Data da última atualização: |
17/02/2012 |
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Autoria: |
COELHO, E. F.; SOUSA, V. F.; RODRIGUES, B. H. |
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Afiliação: |
Embrapa Meio-Norte. |
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Título: |
Alternativas de disposicao de linhas laterais de gotejamento para o meloeiro em solos arenosos coesos. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: BALBUENA, R.H.; BENEZ, S.H.; JORAJURIA, D. Avances en el manejo del suelo y agua en la ingenieria rural latinoamericana. La Plata, Argentina: EUNLP, 1998. p.284-289. |
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Idioma: |
Português |
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Conteúdo: |
O trabalho visa oferecer alternativas de reducao nos custos de sistemas de irrigacao por gotejamento, sem afetar negativamente a eficiencia e o manejo da irrigacao na cultura do meloeiro e avaliar o gotejamento enterrado em termos de rendimento da cultura comparado ao gotejamento superficial. Nao houve diferenca significativa entre os tratamentos propostos, tanto no qu diz respeito a intervalo de irrigacao, disposicao da linha lateral de gotejamento em relacao as linhas de plantio ou posicao da linha lateral no perfil do solo (superficie ou enterrada). A adocao de linhas laterais de gotejamentotanto superficial como enterradas entre fileiras alternadas da cultura do meloeiro e viavel para as condicoes edaficas estudadas. |
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Palavras-Chave: |
Manejo de irrigacao. |
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Thesagro: |
Cucumis Melo; Custo de Produção; Irrigação por Gotejamento; Melão. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01455naa a2200205 a 4500
001 1055188
005 2012-02-17
008 1998 bl --- 0-- u #d
100 1 $aCOELHO, E. F.
245 $aAlternativas de disposicao de linhas laterais de gotejamento para o meloeiro em solos arenosos coesos.
260 $c1998
520 $aO trabalho visa oferecer alternativas de reducao nos custos de sistemas de irrigacao por gotejamento, sem afetar negativamente a eficiencia e o manejo da irrigacao na cultura do meloeiro e avaliar o gotejamento enterrado em termos de rendimento da cultura comparado ao gotejamento superficial. Nao houve diferenca significativa entre os tratamentos propostos, tanto no qu diz respeito a intervalo de irrigacao, disposicao da linha lateral de gotejamento em relacao as linhas de plantio ou posicao da linha lateral no perfil do solo (superficie ou enterrada). A adocao de linhas laterais de gotejamentotanto superficial como enterradas entre fileiras alternadas da cultura do meloeiro e viavel para as condicoes edaficas estudadas.
650 $aCucumis Melo
650 $aCusto de Produção
650 $aIrrigação por Gotejamento
650 $aMelão
653 $aManejo de irrigacao
700 1 $aSOUSA, V. F.
700 1 $aRODRIGUES, B. H.
773 $tIn: BALBUENA, R.H.; BENEZ, S.H.; JORAJURIA, D. Avances en el manejo del suelo y agua en la ingenieria rural latinoamericana. La Plata, Argentina: EUNLP, 1998. p.284-289.
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