Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/36476
Title: General and specific combining ability in tropical winter cauliflower
Other Titles: Capacidade geral e específica de combinação em couve-flor de inverno
Keywords: Brassica oleracea var. botrytis
Cauliflower breeding
Diallel analysis
Partial diallel
Independent culling levels
Melhoramento de brássicas
Análise dialélica
Dialelo parcial
Níveis independentes de eliminação
Issue Date: Jun-2017
Publisher: Associação Brasileira de Horticultura (ABH)
Citation: 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.
Abstract: 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.
URI: http://repositorio.ufla.br/jspui/handle/1/36476
Appears in Collections:DAG - Artigos publicados em periódicos

Files in This Item:
File Description SizeFormat 
ARTIGO_General and specific combining ability in tropical winter cauliflower.pdf377,77 kBAdobe PDFView/Open


This item is licensed under a Creative Commons License Creative Commons