Identification of cowpea genotypes for drought tolerance
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista ciência agronômica (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000100013 |
Resumo: | The genotypes selection for drought tolerance is very important for world food production, principally in arid regions or sites with irregular rain distribution. The objective of this work was to identify cowpea genotypes with drought tolerance and water stress sensitivity characteristics. Two experiments were carried out with 20 treatments and four replications, one under water deficit during reproductive phase and another one under full irrigation. The water deficit was obtained applying half the water depth required by cowpea. The leaf area index, chlorophyll content, grain components and grain yield were evaluated. The water deficit reduced 20% the leaf area index, 16% the chlorophyll content, 175% the pod number per plant and 60% the grain yield. The genotypes Santo Inácio and Tracuateua-192 present sensitivity to water deficit in soil andBRS-Paraguaçu, Pingo-de-ouro-1-2 and Pingo-de-ouro-2 show behavior for drought tolerance. |
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Identification of cowpea genotypes for drought toleranceVigna unguiculataLeaf area indexChlorophyll contentThe genotypes selection for drought tolerance is very important for world food production, principally in arid regions or sites with irregular rain distribution. The objective of this work was to identify cowpea genotypes with drought tolerance and water stress sensitivity characteristics. Two experiments were carried out with 20 treatments and four replications, one under water deficit during reproductive phase and another one under full irrigation. The water deficit was obtained applying half the water depth required by cowpea. The leaf area index, chlorophyll content, grain components and grain yield were evaluated. The water deficit reduced 20% the leaf area index, 16% the chlorophyll content, 175% the pod number per plant and 60% the grain yield. The genotypes Santo Inácio and Tracuateua-192 present sensitivity to water deficit in soil andBRS-Paraguaçu, Pingo-de-ouro-1-2 and Pingo-de-ouro-2 show behavior for drought tolerance.Universidade Federal do Ceará2011-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000100013Revista Ciência Agronômica v.42 n.1 2011reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFC10.1590/S1806-66902011000100013info:eu-repo/semantics/openAccessBastos,Edson AlvesNascimento,Sebastião Pereira doSilva,Everaldo Moreira daFreire Filho,Francisco RodriguesGomide,Reinaldo Lúcioeng2011-03-25T00:00:00Zoai:scielo:S1806-66902011000100013Revistahttp://www.ccarevista.ufc.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2011-03-25T00:00Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false |
dc.title.none.fl_str_mv |
Identification of cowpea genotypes for drought tolerance |
title |
Identification of cowpea genotypes for drought tolerance |
spellingShingle |
Identification of cowpea genotypes for drought tolerance Bastos,Edson Alves Vigna unguiculata Leaf area index Chlorophyll content |
title_short |
Identification of cowpea genotypes for drought tolerance |
title_full |
Identification of cowpea genotypes for drought tolerance |
title_fullStr |
Identification of cowpea genotypes for drought tolerance |
title_full_unstemmed |
Identification of cowpea genotypes for drought tolerance |
title_sort |
Identification of cowpea genotypes for drought tolerance |
author |
Bastos,Edson Alves |
author_facet |
Bastos,Edson Alves Nascimento,Sebastião Pereira do Silva,Everaldo Moreira da Freire Filho,Francisco Rodrigues Gomide,Reinaldo Lúcio |
author_role |
author |
author2 |
Nascimento,Sebastião Pereira do Silva,Everaldo Moreira da Freire Filho,Francisco Rodrigues Gomide,Reinaldo Lúcio |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Bastos,Edson Alves Nascimento,Sebastião Pereira do Silva,Everaldo Moreira da Freire Filho,Francisco Rodrigues Gomide,Reinaldo Lúcio |
dc.subject.por.fl_str_mv |
Vigna unguiculata Leaf area index Chlorophyll content |
topic |
Vigna unguiculata Leaf area index Chlorophyll content |
description |
The genotypes selection for drought tolerance is very important for world food production, principally in arid regions or sites with irregular rain distribution. The objective of this work was to identify cowpea genotypes with drought tolerance and water stress sensitivity characteristics. Two experiments were carried out with 20 treatments and four replications, one under water deficit during reproductive phase and another one under full irrigation. The water deficit was obtained applying half the water depth required by cowpea. The leaf area index, chlorophyll content, grain components and grain yield were evaluated. The water deficit reduced 20% the leaf area index, 16% the chlorophyll content, 175% the pod number per plant and 60% the grain yield. The genotypes Santo Inácio and Tracuateua-192 present sensitivity to water deficit in soil andBRS-Paraguaçu, Pingo-de-ouro-1-2 and Pingo-de-ouro-2 show behavior for drought tolerance. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000100013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000100013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1806-66902011000100013 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal do Ceará |
publisher.none.fl_str_mv |
Universidade Federal do Ceará |
dc.source.none.fl_str_mv |
Revista Ciência Agronômica v.42 n.1 2011 reponame:Revista ciência agronômica (Online) instname:Universidade Federal do Ceará (UFC) instacron:UFC |
instname_str |
Universidade Federal do Ceará (UFC) |
instacron_str |
UFC |
institution |
UFC |
reponame_str |
Revista ciência agronômica (Online) |
collection |
Revista ciência agronômica (Online) |
repository.name.fl_str_mv |
Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC) |
repository.mail.fl_str_mv |
||alekdutra@ufc.br|| ccarev@ufc.br |
_version_ |
1750297485483442176 |