General and specific combining ability in tropical winter cauliflower
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/36476 |
Resumo: | Few Brazilian cauliflower cultivars have shown to be adapted to tropical winter conditions. In addition, studies to obtain hybrids adapted to our winter conditions, from breeding lines originating from tropical regions, are scarce. The objective of this work was to estimate the combining ability of cauliflower breeding lines. The experiment comprised 38 genotypes, 36 hybrids from a partial diallel cross obtained by crosses between two groups of cauliflower lines: Group I (3 parents) and Group II (12 parents) and 2 commercial controls. We evaluated plant cycle, resistance to diseases, average curd mass, curd color, hollow stalk incidence, and overall evaluation. Additive genetic effects were more important than non-additive effects in the expression of these traits. No single parental line showed simultaneously the most favorable GCA values for all traits. The most promising hybrids were the combinations BR1 x TE6, BR1 x TE8, BR1 x TE12, BR2 x TE11, BR3 x TE6 and BR3 x TE7. The results of the choice of hybrids made by the method of independent culling levels reflect what it could be predicted by estimating GCA for cycle and average mass of the curd, reaffirming the importance of additive effects in the expression of these traits. |
id |
UFLA_3f9e57f672595e83b63b8645c9c102bb |
---|---|
oai_identifier_str |
oai:localhost:1/36476 |
network_acronym_str |
UFLA |
network_name_str |
Repositório Institucional da UFLA |
repository_id_str |
|
spelling |
General and specific combining ability in tropical winter cauliflowerCapacidade geral e específica de combinação em couve-flor de invernoBrassica oleracea var. botrytisCauliflower breedingDiallel analysisPartial diallelIndependent culling levelsMelhoramento de brássicasAnálise dialélicaDialelo parcialNíveis independentes de eliminaçãoFew Brazilian cauliflower cultivars have shown to be adapted to tropical winter conditions. In addition, studies to obtain hybrids adapted to our winter conditions, from breeding lines originating from tropical regions, are scarce. The objective of this work was to estimate the combining ability of cauliflower breeding lines. The experiment comprised 38 genotypes, 36 hybrids from a partial diallel cross obtained by crosses between two groups of cauliflower lines: Group I (3 parents) and Group II (12 parents) and 2 commercial controls. We evaluated plant cycle, resistance to diseases, average curd mass, curd color, hollow stalk incidence, and overall evaluation. Additive genetic effects were more important than non-additive effects in the expression of these traits. No single parental line showed simultaneously the most favorable GCA values for all traits. The most promising hybrids were the combinations BR1 x TE6, BR1 x TE8, BR1 x TE12, BR2 x TE11, BR3 x TE6 and BR3 x TE7. The results of the choice of hybrids made by the method of independent culling levels reflect what it could be predicted by estimating GCA for cycle and average mass of the curd, reaffirming the importance of additive effects in the expression of these traits.Poucas cultivares brasileiras de couve-flor têm se mostrado adaptadas às condições de inverno. Além disso, estudos sobre a obtenção de híbridos adaptados às nossas condições de inverno, a partir de linhagens oriundas de regiões tropicais, são escassos. Assim, objetivou-se estimar a capacidade combinatória de linhagens de couve-flor. O experimento constituiu-se de 38 genótipos, sendo 36 híbridos oriundos de um dialelo parcial, obtidos por cruzamentos entre dois grupos de linhagens: grupo I (três genitores) e grupo II (12 genitores) e duas testemunhas comerciais. Foram avaliados o ciclo, resistência a doenças, massa média da cabeça, cor da cabeça, presença de talo oco e avaliação geral. Os efeitos gênicos aditivos foram mais importantes do que os não-aditivos na expressão das características avaliadas. Nenhum parental apresentou concomitantemente os efeitos de Capacidade Geral de Combinação (GCA) mais favoráveis para todas as características avaliadas. Os híbridos experimentais mais promissores foram BR1 x TE6, BR1 x TE8, BR1 x TE12, BR2 x TE11, BR3 x TE6 e BR3 x TE7. Os resultados da escolha de híbridos, feita pelo critério de níveis independentes de eliminação, refletiram em grande parte o que se poderia prever através das estimativas de GCA para as características ciclo e massa média da cabeça, reafirmando a importância dos efeitos aditivos na expressão destas características.Associação Brasileira de Horticultura (ABH)2019-08-27T22:57:58Z2019-08-27T22:57:58Z2017-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfARASHIDA, F. M.; MALUF, W. R.; CARVALHO, R. C. General and specific combining ability in tropical winter cauliflower. Horticultura Brasileira, Vitória da Conquista, v. 35, n. 2, p. 57-62, Apr./June 2017. DOI: 10.1590/s0102-053620170203.http://repositorio.ufla.br/jspui/handle/1/36476Horticultura Brasileirareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessArashida, Felipe M.Maluf, Wilson R.Carvalho, Regis C.eng2019-08-27T22:57:58Zoai:localhost:1/36476Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-08-27T22:57:58Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
General and specific combining ability in tropical winter cauliflower Capacidade geral e específica de combinação em couve-flor de inverno |
title |
General and specific combining ability in tropical winter cauliflower |
spellingShingle |
General and specific combining ability in tropical winter cauliflower Arashida, Felipe M. Brassica oleracea var. botrytis Cauliflower breeding Diallel analysis Partial diallel Independent culling levels Melhoramento de brássicas Análise dialélica Dialelo parcial Níveis independentes de eliminação |
title_short |
General and specific combining ability in tropical winter cauliflower |
title_full |
General and specific combining ability in tropical winter cauliflower |
title_fullStr |
General and specific combining ability in tropical winter cauliflower |
title_full_unstemmed |
General and specific combining ability in tropical winter cauliflower |
title_sort |
General and specific combining ability in tropical winter cauliflower |
author |
Arashida, Felipe M. |
author_facet |
Arashida, Felipe M. Maluf, Wilson R. Carvalho, Regis C. |
author_role |
author |
author2 |
Maluf, Wilson R. Carvalho, Regis C. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Arashida, Felipe M. Maluf, Wilson R. Carvalho, Regis C. |
dc.subject.por.fl_str_mv |
Brassica oleracea var. botrytis Cauliflower breeding Diallel analysis Partial diallel Independent culling levels Melhoramento de brássicas Análise dialélica Dialelo parcial Níveis independentes de eliminação |
topic |
Brassica oleracea var. botrytis Cauliflower breeding Diallel analysis Partial diallel Independent culling levels Melhoramento de brássicas Análise dialélica Dialelo parcial Níveis independentes de eliminação |
description |
Few Brazilian cauliflower cultivars have shown to be adapted to tropical winter conditions. In addition, studies to obtain hybrids adapted to our winter conditions, from breeding lines originating from tropical regions, are scarce. The objective of this work was to estimate the combining ability of cauliflower breeding lines. The experiment comprised 38 genotypes, 36 hybrids from a partial diallel cross obtained by crosses between two groups of cauliflower lines: Group I (3 parents) and Group II (12 parents) and 2 commercial controls. We evaluated plant cycle, resistance to diseases, average curd mass, curd color, hollow stalk incidence, and overall evaluation. Additive genetic effects were more important than non-additive effects in the expression of these traits. No single parental line showed simultaneously the most favorable GCA values for all traits. The most promising hybrids were the combinations BR1 x TE6, BR1 x TE8, BR1 x TE12, BR2 x TE11, BR3 x TE6 and BR3 x TE7. The results of the choice of hybrids made by the method of independent culling levels reflect what it could be predicted by estimating GCA for cycle and average mass of the curd, reaffirming the importance of additive effects in the expression of these traits. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06 2019-08-27T22:57:58Z 2019-08-27T22:57:58Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
ARASHIDA, F. M.; MALUF, W. R.; CARVALHO, R. C. General and specific combining ability in tropical winter cauliflower. Horticultura Brasileira, Vitória da Conquista, v. 35, n. 2, p. 57-62, Apr./June 2017. DOI: 10.1590/s0102-053620170203. http://repositorio.ufla.br/jspui/handle/1/36476 |
identifier_str_mv |
ARASHIDA, F. M.; MALUF, W. R.; CARVALHO, R. C. General and specific combining ability in tropical winter cauliflower. Horticultura Brasileira, Vitória da Conquista, v. 35, n. 2, p. 57-62, Apr./June 2017. DOI: 10.1590/s0102-053620170203. |
url |
http://repositorio.ufla.br/jspui/handle/1/36476 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Horticultura (ABH) |
publisher.none.fl_str_mv |
Associação Brasileira de Horticultura (ABH) |
dc.source.none.fl_str_mv |
Horticultura Brasileira reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1815439084048351232 |