Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bragantia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000400527 |
Resumo: | ABSTRACT Cotton provides about 90% of the world textile fiber, and is one of the crops of greater industrial relevance. The objectives of this study were to estimate the inbreeding depressionand the genetic effects involved in the control of the agronomic andfiber quality traits in F1 and F2 generations and to identify promising hybrids for obtaining superior cotton genotypes. Two cultivars of upland cotton and two moco (Brazilian endemic) cotton were crossed using a half-diallel scheme. The following traits were evaluated: percentage of fibers and weight of one boll, fiber length, fiber uniformity, short fiber index, fiber strength, and micronaire index. The additive genetic effects are predominant in the evaluated agronomic and fiber quality traits. Cultivar FM 966 is the most suitable parent to compose crossing blocks for the improvement of cotton agronomic and fiber quality traits. The hybrids FM 966 × CNPA 7MH and FM 966 × BRS 286 are the most promising for obtaining segregating populations aiming to select superior genotypes. Inbreeding depression is more pronounced in the agronomic traits than in the fiber quality traits. |
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Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypesGossypium hirsutum L. r. latifolium HutchGossypium hirsutum L. r. marie galante Hutchcombining abilityparents selectionABSTRACT Cotton provides about 90% of the world textile fiber, and is one of the crops of greater industrial relevance. The objectives of this study were to estimate the inbreeding depressionand the genetic effects involved in the control of the agronomic andfiber quality traits in F1 and F2 generations and to identify promising hybrids for obtaining superior cotton genotypes. Two cultivars of upland cotton and two moco (Brazilian endemic) cotton were crossed using a half-diallel scheme. The following traits were evaluated: percentage of fibers and weight of one boll, fiber length, fiber uniformity, short fiber index, fiber strength, and micronaire index. The additive genetic effects are predominant in the evaluated agronomic and fiber quality traits. Cultivar FM 966 is the most suitable parent to compose crossing blocks for the improvement of cotton agronomic and fiber quality traits. The hybrids FM 966 × CNPA 7MH and FM 966 × BRS 286 are the most promising for obtaining segregating populations aiming to select superior genotypes. Inbreeding depression is more pronounced in the agronomic traits than in the fiber quality traits.Instituto Agronômico de Campinas2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000400527Bragantia v.77 n.4 2018reponame:Bragantiainstname:Instituto Agronômico de Campinas (IAC)instacron:IAC10.1590/1678-4499.2017336info:eu-repo/semantics/openAccessCarvalho,Luiz Paulo deTeodoro,Paulo EduardoRodrigues,Josiane Isabela da SilvaFarias,Francisco José CorreiaBhering,Leonardo Lopeseng2018-11-13T00:00:00Zoai:scielo:S0006-87052018000400527Revistahttps://www.scielo.br/j/brag/https://old.scielo.br/oai/scielo-oai.phpbragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br1678-44990006-8705opendoar:2018-11-13T00:00Bragantia - Instituto Agronômico de Campinas (IAC)false |
dc.title.none.fl_str_mv |
Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes |
title |
Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes |
spellingShingle |
Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes Carvalho,Luiz Paulo de Gossypium hirsutum L. r. latifolium Hutch Gossypium hirsutum L. r. marie galante Hutch combining ability parents selection |
title_short |
Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes |
title_full |
Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes |
title_fullStr |
Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes |
title_full_unstemmed |
Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes |
title_sort |
Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes |
author |
Carvalho,Luiz Paulo de |
author_facet |
Carvalho,Luiz Paulo de Teodoro,Paulo Eduardo Rodrigues,Josiane Isabela da Silva Farias,Francisco José Correia Bhering,Leonardo Lopes |
author_role |
author |
author2 |
Teodoro,Paulo Eduardo Rodrigues,Josiane Isabela da Silva Farias,Francisco José Correia Bhering,Leonardo Lopes |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Carvalho,Luiz Paulo de Teodoro,Paulo Eduardo Rodrigues,Josiane Isabela da Silva Farias,Francisco José Correia Bhering,Leonardo Lopes |
dc.subject.por.fl_str_mv |
Gossypium hirsutum L. r. latifolium Hutch Gossypium hirsutum L. r. marie galante Hutch combining ability parents selection |
topic |
Gossypium hirsutum L. r. latifolium Hutch Gossypium hirsutum L. r. marie galante Hutch combining ability parents selection |
description |
ABSTRACT Cotton provides about 90% of the world textile fiber, and is one of the crops of greater industrial relevance. The objectives of this study were to estimate the inbreeding depressionand the genetic effects involved in the control of the agronomic andfiber quality traits in F1 and F2 generations and to identify promising hybrids for obtaining superior cotton genotypes. Two cultivars of upland cotton and two moco (Brazilian endemic) cotton were crossed using a half-diallel scheme. The following traits were evaluated: percentage of fibers and weight of one boll, fiber length, fiber uniformity, short fiber index, fiber strength, and micronaire index. The additive genetic effects are predominant in the evaluated agronomic and fiber quality traits. Cultivar FM 966 is the most suitable parent to compose crossing blocks for the improvement of cotton agronomic and fiber quality traits. The hybrids FM 966 × CNPA 7MH and FM 966 × BRS 286 are the most promising for obtaining segregating populations aiming to select superior genotypes. Inbreeding depression is more pronounced in the agronomic traits than in the fiber quality traits. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-01 |
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=S0006-87052018000400527 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000400527 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-4499.2017336 |
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 |
Instituto Agronômico de Campinas |
publisher.none.fl_str_mv |
Instituto Agronômico de Campinas |
dc.source.none.fl_str_mv |
Bragantia v.77 n.4 2018 reponame:Bragantia instname:Instituto Agronômico de Campinas (IAC) instacron:IAC |
instname_str |
Instituto Agronômico de Campinas (IAC) |
instacron_str |
IAC |
institution |
IAC |
reponame_str |
Bragantia |
collection |
Bragantia |
repository.name.fl_str_mv |
Bragantia - Instituto Agronômico de Campinas (IAC) |
repository.mail.fl_str_mv |
bragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br |
_version_ |
1754193306697334784 |