Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions.
The initial goal of this study was to measure the efficiency of carbon isotope discrimination (?) in distinguishing between cotton plant genotypes subjected to two water regimes. In addition, ? measurements, leaf water potential and gas exchange ratios were monitored. Using Brazilian breeding lines, this study also tested the usability of ? as a proxy for selecting high-performing yield components in cotton plants grown in unfavorable conditions, particularly water deficiency. For these experiments, ? and yield components were measured and their correlations analyzed. Differences among cotton genotypes for ? (p < 0.0001) were verified, and it was found that this variable was significantly correlated with gas exchange. There was a significant positive correlation between ? and seed cotton yield only in the site experiencing severe water deficiency (Santa Helena de Goiás). However, ? had a significant negative correlation with fiber percentage. Our results indicate that ? is a suitable tool for cotton phenotyping, and it may be applied in cotton breeding programs that aim to produce high-performing yield components in unfavorable conditions.
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Format: | Separatas biblioteca |
Language: | English eng |
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2015-04-10
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Subjects: | Troca gasosa, Fracionamento do carbono, Estresse abiótico, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1013273 |
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dig-alice-doc-10132732017-08-16T02:13:56Z Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. BRITO, G. G. de SUASSUNA, N. D. SILVA, V. N. SOFIATTI, V. DIOLA, V. MORELLO, C. de L. GIOVANI GREIGH DE BRITO, CPACT; NELSON DIAS SUASSUNA, CNPA; Vivianny Nayse Silva; VALDINEI SOFIATTI, CNPA; Valdir Diola; CAMILO DE LELIS MORELLO, CNPA. Troca gasosa Fracionamento do carbono Estresse abiótico The initial goal of this study was to measure the efficiency of carbon isotope discrimination (?) in distinguishing between cotton plant genotypes subjected to two water regimes. In addition, ? measurements, leaf water potential and gas exchange ratios were monitored. Using Brazilian breeding lines, this study also tested the usability of ? as a proxy for selecting high-performing yield components in cotton plants grown in unfavorable conditions, particularly water deficiency. For these experiments, ? and yield components were measured and their correlations analyzed. Differences among cotton genotypes for ? (p < 0.0001) were verified, and it was found that this variable was significantly correlated with gas exchange. There was a significant positive correlation between ? and seed cotton yield only in the site experiencing severe water deficiency (Santa Helena de Goiás). However, ? had a significant negative correlation with fiber percentage. Our results indicate that ? is a suitable tool for cotton phenotyping, and it may be applied in cotton breeding programs that aim to produce high-performing yield components in unfavorable conditions. 2015-04-17T05:49:15Z 2015-04-17T05:49:15Z 2015-04-10 2014 2015-04-17T05:49:15Z Separatas Acta Scientiarum, v. 36, n. 3, p. 335-345, jul./set. 2014. 1807-8621 http://www.alice.cnptia.embrapa.br/alice/handle/doc/1013273 10.4025/actasciagron.v36i3.17986 en eng openAccess |
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Troca gasosa Fracionamento do carbono Estresse abiótico Troca gasosa Fracionamento do carbono Estresse abiótico |
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Troca gasosa Fracionamento do carbono Estresse abiótico Troca gasosa Fracionamento do carbono Estresse abiótico BRITO, G. G. de SUASSUNA, N. D. SILVA, V. N. SOFIATTI, V. DIOLA, V. MORELLO, C. de L. Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. |
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The initial goal of this study was to measure the efficiency of carbon isotope discrimination (?) in distinguishing between cotton plant genotypes subjected to two water regimes. In addition, ? measurements, leaf water potential and gas exchange ratios were monitored. Using Brazilian breeding lines, this study also tested the usability of ? as a proxy for selecting high-performing yield components in cotton plants grown in unfavorable conditions, particularly water deficiency. For these experiments, ? and yield components were measured and their correlations analyzed. Differences among cotton genotypes for ? (p < 0.0001) were verified, and it was found that this variable was significantly correlated with gas exchange. There was a significant positive correlation between ? and seed cotton yield only in the site experiencing severe water deficiency (Santa Helena de Goiás). However, ? had a significant negative correlation with fiber percentage. Our results indicate that ? is a suitable tool for cotton phenotyping, and it may be applied in cotton breeding programs that aim to produce high-performing yield components in unfavorable conditions. |
author2 |
GIOVANI GREIGH DE BRITO, CPACT; NELSON DIAS SUASSUNA, CNPA; Vivianny Nayse Silva; VALDINEI SOFIATTI, CNPA; Valdir Diola; CAMILO DE LELIS MORELLO, CNPA. |
author_facet |
GIOVANI GREIGH DE BRITO, CPACT; NELSON DIAS SUASSUNA, CNPA; Vivianny Nayse Silva; VALDINEI SOFIATTI, CNPA; Valdir Diola; CAMILO DE LELIS MORELLO, CNPA. BRITO, G. G. de SUASSUNA, N. D. SILVA, V. N. SOFIATTI, V. DIOLA, V. MORELLO, C. de L. |
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Troca gasosa Fracionamento do carbono Estresse abiótico |
author |
BRITO, G. G. de SUASSUNA, N. D. SILVA, V. N. SOFIATTI, V. DIOLA, V. MORELLO, C. de L. |
author_sort |
BRITO, G. G. de |
title |
Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. |
title_short |
Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. |
title_full |
Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. |
title_fullStr |
Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. |
title_full_unstemmed |
Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. |
title_sort |
leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. |
publishDate |
2015-04-10 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1013273 |
work_keys_str_mv |
AT britoggde leaflevelcarbonisotopediscriminationanditsrelationshipwithyieldcomponentsasatoolforcottonphenotypinginunfavorableconditions AT suassunand leaflevelcarbonisotopediscriminationanditsrelationshipwithyieldcomponentsasatoolforcottonphenotypinginunfavorableconditions AT silvavn leaflevelcarbonisotopediscriminationanditsrelationshipwithyieldcomponentsasatoolforcottonphenotypinginunfavorableconditions AT sofiattiv leaflevelcarbonisotopediscriminationanditsrelationshipwithyieldcomponentsasatoolforcottonphenotypinginunfavorableconditions AT diolav leaflevelcarbonisotopediscriminationanditsrelationshipwithyieldcomponentsasatoolforcottonphenotypinginunfavorableconditions AT morellocdel leaflevelcarbonisotopediscriminationanditsrelationshipwithyieldcomponentsasatoolforcottonphenotypinginunfavorableconditions |
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