干旱区生态环境知识资源中心(Arid): Yield-based drought tolerance index evaluates the drought tolerance of cotton germplasm lines in the interaction of genotype-by-environment

Arid

DOI	10.7717/peerj.14367
	Yield-based drought tolerance index evaluates the drought tolerance of cotton germplasm lines in the interaction of genotype-by-environment
	Sun, Fenglei; Chen, Quanjia; Chen, Qin; Jiang, Menghui; Qu, Yanying
通讯作者	Qu, YY
来源期刊	PEERJ
ISSN	2167-8359
出版年	2023
卷号	11
英文摘要	Background. Cotton is an economically important crop in China, and drought has seriously affected cotton production. Understanding genetic variation, genotype xenvironment interactions, and the associations between these traits is critical for developing improved cotton varieties with high drought tolerance.Methods. To screen ideal drought-resistant cotton germplasm lines and excellent genotypes, the yield traits of 103 cotton germplasm lines were analyzed. Cotton resource material was planted under normal watering and water deficit conditions for three consecutive years. The yield traits under normal irrigation and water stress conditions were measured, and then five screening indicators were calculated based on the cotton yield per plant under the two water treatments to determine the ideal genotype and most accurate identification indicators.Results. The results of correlation analysis and principal component analysis showed that the geometric mean productivity (GMP), mean productivity (MP), and stress tolerance index (STI) were significantly positively correlated with yield under water stress and could be used to distinguish genotypes with high drought tolerance. Among the experimental germplasm lines, some had higher STI and GMP values, indicating their higher drought tolerance. This result indicates that best linear unbiased prediction (BLUP) analysis of the STI and GMP under drought stress can effectively improve screening for drought tolerance in cotton germplasm lines. The results from the screening index, three-dimensional map, and genotype xenvironment (GGE) biplots were consistent with the above results. We determined that CQJ-5, Xin lu zao 45, Bellsno, Zhong R 2016 and ND 359-5 are drought-tolerant genotypes that can be used to breed drought-tolerant germplasm lines that produce high and stable yields.
英文关键词	Cotton Yield index Drought resistance Cotton yield per plant Water stress
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000918785300004
WOS关键词	ARID REGION ; STRESS ; WATER ; PERFORMANCE ; RESISTANCE ; CULTIVARS ; SELECTION ; XINJIANG ; GROWTH ; CHINA
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397985
推荐引用方式 GB/T 7714	Sun, Fenglei,Chen, Quanjia,Chen, Qin,et al. Yield-based drought tolerance index evaluates the drought tolerance of cotton germplasm lines in the interaction of genotype-by-environment[J],2023,11.
APA	Sun, Fenglei,Chen, Quanjia,Chen, Qin,Jiang, Menghui,&Qu, Yanying.(2023).Yield-based drought tolerance index evaluates the drought tolerance of cotton germplasm lines in the interaction of genotype-by-environment.PEERJ,11.
MLA	Sun, Fenglei,et al."Yield-based drought tolerance index evaluates the drought tolerance of cotton germplasm lines in the interaction of genotype-by-environment".PEERJ 11(2023).