Carbon isotope fractionation for cotton genotype selection
The objective of this work was to evaluate the carbon isotope fractionation as a phenomic facility for cotton selection in contrasting environments and to assess its relationship with yield components. The experiments were carried out in a randomized block design, with four replicates, in the municipalities of Santa Helena de Goiás (SHGO) and Montividiu (MONT), in the state of Goiás, Brazil. The analysis of carbon isotope discrimination (Δ) was performed in 15 breeding lines and three cultivars. Subsequently, the root growth kinetic and root system architecture from the selected genotypes were determined. In both locations, Δ analyses were suitable to discriminate cotton genotypes. There was a positive correlation between Δ and seed-cotton yield in SHGO, where water deficit was more severe. In this site, the negative correlations found between Δ and fiber percentage indicate an integrative effect of gas exchange on Δ and its association with yield components. As for root robustness and growth kinetic, the GO 05 809 genotype performance contributes to sustain the highest values of Δ found in MONT, where edaphoclimatic conditions were more suitable for cotton. The use of Δ analysis as a phenomic facility can help to select cotton genotypes, in order to obtain plants with higher efficiency for gas exchange and water use.
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Embrapa Secretaria de Pesquisa e Desenvolvimento
2014
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oai:scielo:S0100-204X20140009006732014-10-30Carbon isotope fractionation for cotton genotype selectionBrito,Giovani Greigh deSuassuna,Nelson DiasDiola,ValdirSofiatti,ValdineiDucatti,CarlosSilva,Evandro Tadeu daMorello,Camilo de Lelis Gossypium carbon isotope discrimination genetic breeding phenotyping. The objective of this work was to evaluate the carbon isotope fractionation as a phenomic facility for cotton selection in contrasting environments and to assess its relationship with yield components. The experiments were carried out in a randomized block design, with four replicates, in the municipalities of Santa Helena de Goiás (SHGO) and Montividiu (MONT), in the state of Goiás, Brazil. The analysis of carbon isotope discrimination (Δ) was performed in 15 breeding lines and three cultivars. Subsequently, the root growth kinetic and root system architecture from the selected genotypes were determined. In both locations, Δ analyses were suitable to discriminate cotton genotypes. There was a positive correlation between Δ and seed-cotton yield in SHGO, where water deficit was more severe. In this site, the negative correlations found between Δ and fiber percentage indicate an integrative effect of gas exchange on Δ and its association with yield components. As for root robustness and growth kinetic, the GO 05 809 genotype performance contributes to sustain the highest values of Δ found in MONT, where edaphoclimatic conditions were more suitable for cotton. The use of Δ analysis as a phenomic facility can help to select cotton genotypes, in order to obtain plants with higher efficiency for gas exchange and water use.info:eu-repo/semantics/openAccessEmbrapa Secretaria de Pesquisa e DesenvolvimentoPesquisa Agropecuária BrasileiraPesquisa Agropecuária Brasileira v.49 n.9 20142014-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000900673en10.1590/S0100-204X2014000900003 |
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Brito,Giovani Greigh de Suassuna,Nelson Dias Diola,Valdir Sofiatti,Valdinei Ducatti,Carlos Silva,Evandro Tadeu da Morello,Camilo de Lelis |
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Brito,Giovani Greigh de Suassuna,Nelson Dias Diola,Valdir Sofiatti,Valdinei Ducatti,Carlos Silva,Evandro Tadeu da Morello,Camilo de Lelis Carbon isotope fractionation for cotton genotype selection |
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Brito,Giovani Greigh de Suassuna,Nelson Dias Diola,Valdir Sofiatti,Valdinei Ducatti,Carlos Silva,Evandro Tadeu da Morello,Camilo de Lelis |
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Brito,Giovani Greigh de |
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Carbon isotope fractionation for cotton genotype selection |
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Carbon isotope fractionation for cotton genotype selection |
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Carbon isotope fractionation for cotton genotype selection |
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Carbon isotope fractionation for cotton genotype selection |
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Carbon isotope fractionation for cotton genotype selection |
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carbon isotope fractionation for cotton genotype selection |
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The objective of this work was to evaluate the carbon isotope fractionation as a phenomic facility for cotton selection in contrasting environments and to assess its relationship with yield components. The experiments were carried out in a randomized block design, with four replicates, in the municipalities of Santa Helena de Goiás (SHGO) and Montividiu (MONT), in the state of Goiás, Brazil. The analysis of carbon isotope discrimination (Δ) was performed in 15 breeding lines and three cultivars. Subsequently, the root growth kinetic and root system architecture from the selected genotypes were determined. In both locations, Δ analyses were suitable to discriminate cotton genotypes. There was a positive correlation between Δ and seed-cotton yield in SHGO, where water deficit was more severe. In this site, the negative correlations found between Δ and fiber percentage indicate an integrative effect of gas exchange on Δ and its association with yield components. As for root robustness and growth kinetic, the GO 05 809 genotype performance contributes to sustain the highest values of Δ found in MONT, where edaphoclimatic conditions were more suitable for cotton. The use of Δ analysis as a phenomic facility can help to select cotton genotypes, in order to obtain plants with higher efficiency for gas exchange and water use. |
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Embrapa Secretaria de Pesquisa e Desenvolvimento |
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2014 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000900673 |
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