Selection of upland cotton for the Brazilian semi-arid region under supplementary irrigation

被引：6
|
作者：
de Carvalho, Jarbas Fiorentino [1 ]
Vasconcelos Cavalcanti, Jose Jaime [2 ]
Correia Farias, Francisco Jose [2 ]
Cordeiro Ramos, Jean Pierre [3 ]
Queiroz, Damiao Raniere [4 ]
dos Santos, Roseane Cavalcanti [2 ]
机构：
[1] Inst Fed Educ Ciencia & Tecnol Sertao Pernambucan, Campus Floresta, BR-5640000 Floresta, PE, Brazil
[2] Embrapa Algodao, BR-58428095 Campina Grande, PE, Brazil
[3] Univ Fed Paraiba, Ctr Ciencias Agr, Campus 2, BR-58397000 Areia, PE, Brazil
[4] Univ Fed Rural Pernambuco, Campus Dois Irmaos, BR-52171900 Recife, PE, Brazil
来源：
CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2019年 / 19卷 / 02期
关键词：
Gossypium hirsutum L; yield; selection index; fiber quality; LINT YIELD; STRESS; QUALITY; TEMPERATURE;
D O I：
10.1590/1984-70332019v19n2a26
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
This study aimed to select cotton genotypes adapted to semi-arid conditions grown with supplementary irrigation. Two experiments were carried out between March and July 2016 in Serra Talhada-Pernambuco and Apodi-Rio Grande do Norte, Brazil. Eighteen elite genotypes bred by Embrapa Cotton and two controls (BRS 286 and BRS 336) were evaluated under drip and sprinkler irrigation. The experiment consisted of a randomized complete block design with four replications. Agronomic and fiber quality traits were evaluated. The data were subjected to individual and combined analysis of variance, and genotypes were selected by the Mulamba and Mock selection index (1978). The genetic parameters evidenced the possibility of significant gains in the selection process of cotton plants. The four genotypes (CNPA 2006-3052, CNPA 2004-266, CNPA 2006-1073, and CNPA 2005-125) with highest total genetic gains for the studied traits were considered the most promising.
引用
收藏
页码：185 / 192
页数：8
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