Genetic Basis of Variation for Fiber Quality and Quality Related Biochemical Traits in Bt and non-Bt Colored Cotton

文献类型： 外文期刊

第一作者： Malik, Waqas

作者： Malik, Waqas;Abid, Muhammad Ali;Liang, Chengzhen;Guo, Sandui;Zhang, Rui;Malik, Waqas;Shah, Muhammad Shahzad Asghar;Abid, Muhammad Ali;Qanmber, Ghulam;Noor, Etrat;Qayyum, Abdul

作者机构：

关键词： Coefficient of correlation; Gene action; Genotype-by-trait analysis; General and specific combining ability

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）

ISSN： 1560-8530

年卷期： 2018 年 20 卷 9 期

页码：

收录情况： SCI

摘要： Colored cotton is an environment friendly raw material for textile industry and in the recent past rapid adoption of Bt cotton by the farmers is provoking the researchers to develop a resilient breeding strategy for superior non-Bt and Bt colored cottons. We studied the genetic basis for boll weight, fiber quality, cellulose and flavonoids contents using combination of line x tester (8 x 3), genotype-by-traits, correlation and path coefficient analyses. Plant population was developed by manual hybridization of eight white and three colored cotton genotypes. The study revealed the non-additive gene action i.e., low & Unknown;(2)gca and narrow sense heritability for all traits except flavonoid contents supported the adoption of heterosis breeding coupled with rigorous selection for superior colored cotton development. In the selection of parents, combine or separate use of genotype-by-trait analysis and gca effects revealed the good performance of MNH-886 and FH-142 for boll weight and fiber quality traits and their high gca effects. Best specific combination for boll weight, fiber length and fiber strength were observed in Bt green cotton hybridsVH-303 x BZUG2. Whilean interspecific green hybrid GIZA-7 x BZUG1 had maximum significant sca effects for fiber length and fiber uniformity. Significant positive association of cellulose contents with boll weight and fiber quality traits in the presences of negative direct and indirect effects of flavonoid contents on fiber quality and boll weight suggested that rigorous efforts are needed for the development of elite colored cotton genotypes. (C) 2018 Friends Science Publishers

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