期刊论文详细信息
Ciência Rural
Association of secondary traits with yield in maize F 1 's
Souza, Velci Queiróz de1  Follmann, Diego Nicolau1  Baretta, Diego2  Nardino, Maicon1  Konflanz, Valmor Antonio3  Caron, Braulio Otomar1  Carvalho, Ivan Ricardo1 
[1] Universidade Federal de Santa Maria, Frederico Westphalen, Brazil;Universidade Federal de Pelotas, Pelotas, Brazil;Melhorista de Plantas da Empresa KSP Sementes Ltda, Pato Branco, Brasil
关键词:  direct and indirect effects;    Zea mays L;   
DOI  :  10.1590/0103-8478cr20150253
学科分类:农业科学(综合)
来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais
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【 摘 要 】

:The objective was to identify phenotypic and genotypic associations, and cause-and-effect relations of secondary components on primary components to establish criteria in the indirect selection process for maize. Partial diallel crosses were conducted in Clevelândia. F1's were evaluated in five environments. For the purpose of increasing the yield of corn grain, breeders should seek to reduce the characters distance from the last node to the first branch of the tassel, tassel length and number of branches. The indirect selection for distance from the last node to the first branch of the tassel would be effective to increase the grain yield. The selection for smaller leaf angle, larger stem diameter and thousand grain weight are favorable for increasing grain yield in maize.

【 授权许可】

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