Genetic parameters and selection index in intraspecific cotton lines in a Brazilian semi-arid region

• 全文链接

巴西半干旱区棉花种内品系的遗传参数和选择指数

关键词：

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY

全文链接：

//agri.nais.net.cn/topic/downloadFile/1b937d43-fea4-41c0-943b-455769d6ceb0

来源地址：

https://www.scielo.br/j/cbab/a/sDmgnysd7kcpCtWcKzxKcHR/?lang=en

资源所属：

棉花遗传育种

类型：

学术文献

语种：

英语

原文发布日期：

2024-06-07

摘要：

The climatic and edaphic conditions of the semi-arid Brazilian Northeast region limit the production of several annual crops, including cotton. The aim of this study was to estimate the genetic parameters and select water stress tolerant cotton lines based on yield and fiber quality traits. Twenty cotton lines were evaluated in Alagoinha-PB over two years under rainfed conditions. Individual and joint analysis of variance was performed on the data. Genetic parameters were determined, and lines were selected using the selection index. SA 2019-165 were selected for further tests in the region for recommendation of new cultivars. These lines can form new blocks of crosses, together with the BRS 286 check cultivar, as they have the best mean yield and fiber quality values, with the expectation of significant genetic gains.