Data/hora: 10/06/2024 01:35:26

Provedor de dados: | 53
País: | Brazil
Título: | Correlations and path analysis in components of fiber yield in cultivars of upland cotton
Autores: | Araújo,Laíse Ferreira de; Almeida,Wener Santos de; Bertini,Cândida Hermínia Campos de Magalhães; Vidal Neto,Francisco das Chagas; Bleicher,Ervino.
Data: | 2012-01-01
Ano: | 2012
Palavras-chave: | Gossypium hirsutum; Fiber quality; Agronomic traits.
Resumo: | This study evaluated the relative contribution of agronomic and technological components on the fiber yield in upland cotton cultivars. The experiment was carried out with 11 upland cotton cultivars in a completely randomized blocks design with three replications. Initially, we performed analysis of variance, with the F test at 5% probability for the effect of cultivar as fixed effects as well as block and environment effects as random. Then the values were ordered according to cluster test Scott-Knott, at 5% probability level. The significance of the null hypothesis that all possible canonical correlations are null was evaluated using the chi-square test. The correlations were estimated through the path analysis. By examining the canonical correlations there was dependence between the two groups of variables and therefore it is possible to promote changes in certain characteristics through the selection of others correlated. Plants of upland cotton with higher fiber yield were influenced by the decrease in average weight of the cotton boll. When there is a reduced fiber yield, there is also an increase in uniformity and strength thereof. The fiber resistance had negative indirect effects on the fiber uniformity and length.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052012000300002
Editor: | Instituto Agronômico de Campinas
Relação: | 10.1590/S0006-87052012005000036
Formato: | text/html
Fonte: | Bragantia  v.71 n.3 2012
Fonte: | info:eu-repo/semantics/openAccess