Heritability and correlation analysis of morphological and yield traits in genetically modified cotton

文献类型： 外文期刊

第一作者： Rehman, Abdul

作者： Rehman, Abdul;Du Xiongming;Rehman, Abdul;Du Xiongming;Mustafa, Nida;Azhar, Muhammad Tehseen;Azhar, Muhammad Tehseen

作者机构：

关键词： Genetic correlation; Genetic variability; Inheritance; Productivity; Upland cotton

期刊名称：JOURNAL OF COTTON RESEARCH （ 影响因子：2.6； 五年影响因子：2.8 ）

ISSN： 2096-5044

年卷期： 2020 年 3 卷

页码：

收录情况： SCI

摘要： Background: Cotton is known for fiber extraction and it is grown in tropical and sub-tropical areas of the world due to having hot weather. Cotton crop has a significant role in GDP of Pakistan. Therefore, the two-years research was conducted to estimate heritability and association among various yield contributing parameters of cotton, i.e., plant height, number of bolls per plant, number of sympodial branches per plant, seed cotton yield, boll weight, seed index, ginning outturn (GOT), fiber length, fiber strength, and fiber fineness. Results: Association analysis revealed that seed cotton yield had a significant positive correlation with plant height, number of bolls per plant, number of sympodial branches per plant, GOT, staple length and fiber strength. Staple length and fiber strength were negatively linked with each other. Estimates of heritability were high for all of the traits except the number of sympodial branches per plant and boll weight. Conclusion: The parent IUB-222 was found to be the best for plant height, the number of bolls per plant, boll weight, GOT, seed cotton yield, and seed index. The genotypes namely, NIAB-414 and VH-367 were identified as the best parents for fiber length, strength, and fineness. Among the crosses NIAB-414 x IUB-222 was the best for the number of bolls per plant, seed index, seed cotton yield and fiber fineness, whereas, the cross of NIAB-414 x CIM-632 was good for plant height. The combination of A555 x CIM-632 was the best for the number of sympodial branches per plant, boll weight, fiber length, and strength, and VH-367 x CIM-632 proved the best for GOT.

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