Selection of BGRR® herbaceous cotton lines for the Brazilian semi-arid region

被引：0

作者：

Cavalcanti, Jose Jaime Vasconcelos ^{[1
]}

da Silva, Severino Moreira ^{[2
]}

Thomaz, Jailma Souza ^{[2
,3
]}

机构：

[1] Empresa Brasileira Pesquisa Agr Algodao, Rua Osvaldo Cruz,1143 Centenario, BR-58428095 Campina Grande, PB, Brazil

[2] Univ Estadual Paraiba, Rua Baraunas 351, BR-58431410 Campina Grande, PB, Brazil

[3] Univ Fed Rural Pernambuco, Rua Dom Manuel Medeiros S-N, BR-52171900 Recife, PE, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2025年 / 25卷 / 01期

关键词：

Gossypium hirsutum L; plant breeding; transgenic; selection index; PHENOTYPIC ADAPTABILITY; GENETIC-PARAMETERS; FIBER; GENOTYPES; YIELD; QUALITY;

D O I：

10.1590/1984-70332025v25n1a04

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Cotton farming plays an important socioeconomic role in the Brazilian semi-arid region. The high cost of seeds and risk of crop failure from irregular rainfall limit the use of transgenic cultivars in the region, especially in family farming. Low-cost transgenic cultivars adapted to the semi-arid region would assist in overcoming these limitations. The aim of this study was to select cotton lines grown under rainfed conditions in northeastern Brazil. Nineteen (19) BGRR (R) cotton lines were evaluated in Alagoinha, PB, over two years under rainfed conditions. Agronomic and fiber quality traits were evaluated. Individual and joint analyses were carried out, followed by use of a selection index. The selected long-fiber lines are CNPA-SA-2018-4226 and CNPA-SA-2018-4231, and selected medium-fiber lines are CNPA-SA-2018-4254, CNPA-SA-2018-4239, and CNPA-SA-2018-4251, as they combine high yield and fiber quality traits that meet market demands. They have potential in development of cultivars for the region.

引用

页数：8

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