GENETIC PARAMETERS AND PATH ANALYSIS OF TRAITS OF UPLAND COTTON FOR THE BRAZILIAN SEMI-ARID REGION

被引：1
|
作者：
Queiroz, Damiao Ranieri [1 ]
Correa Farias, Francisco Jose [2 ]
Vasconcelos Cavalcanti, Jose Jaime [2 ]
de Carvalho, Luiz Paulo [2 ]
Neder, Diogo Goncalves [3 ]
de Melo, Gersia Goncalves [1 ]
Costa, Djayran Sobral [1 ]
Farias, Filipe Cavalcanti [4 ]
Teodoro, Paulo Eduardo [5 ]
机构：
[1] Univ Fed Rural Pernambuco UFRPE, Recife, PE, Brazil
[2] Embrapa Algodao, Campina Grande, Paraiba, Brazil
[3] Univ Estadual Paraiba UEPB, Campina Grande, Paraiba, Brazil
[4] Univ Fed Goias, Goiania, Go, Brazil
[5] Univ Fed Mato Grosso do Sul UFMS, Chapadao Do Sul, MS, Brazil
来源：
BIOSCIENCE JOURNAL | 2019年 / 35卷 / 06期
关键词：
Yield; Gossypium hirsutum L; Fiber length; Micronaire; LINT YIELD; QUALITY;
D O I：
10.14393/BJ-v35n6a2019-42408
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
Upland cotton fiber is one of the most used natural fibers in the production of textile materials worldwide. For this reason, the selection of genotypes that meet the industry's requirements is one of the main goals of cotton breeding programs. This study aimed to estimate the phenotypic and genotypic correlations among fiber traits and identify the direct and indirect effects of these traits on seed cotton yield of upland cotton genotypes in the semi-arid Brazilian Northeast. This study assessed 21 upland cotton genotypes from a complete diallel cross without reciprocals. The design was randomized blocks, with three replications and 21 treatments. The experiment was conducted in the municipality of Patos - PB, in 2015. The statistical analysis consisted of analysis of variance by the F test, phenotypic and genotypic correlation analysis, and path analysis. The studied materials revealed genetic variability for all traits. Path analysis has shown that the traits fiber elongation, fiber strength, and fiber fineness have a direct positive effect on seed cotton yield.
引用
收藏
页码：1855 / 1861
页数：7
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