Vol. 7, Issue 3 (2019)
Genetic variability studies for yield and its Components and quality traits with high iron and zinc content in segregating population of rice (Oryza sativa L.)
Author(s): K Mohana Sundaram, S Rajeswari, R Saraswathi and P Jayaprakash
Abstract: The present investigation was carried out for yield and yield related traits in the F2, F3 and Biparental populations of four rice cross combinations viz., Rajamudi x ASD 16, Rajamudi x CO 47, Mohini samba x ASD 16 and Mohini samba x CO 47. The genotypic and phenotypic coefficient of variability were low in four crosses for most of the traits viz., days to 50% flowering, plant height, panicle length, number of grains per panicle and spikelet fertility in F2, F3 and BIPs generation. High heritability coupled with high genetic advance as mean observed for number of productive tillers in F2, F3, BIPs population of Mohini samba x ASD 16 and Rajamudi x ASD 16 and Rajamudi x CO 47 in F2 and BIPs generation. This indicates scope of selection in the population, since there is a wide range of variation and additive gene action. The Rajamudi x ASD 16 and Mohini samba x CO 47 crosses were selected with high zinc and iron content for grain quality analysis in F3 and biparental population. Based on mean, GCV, PCV, heritability and genetic advance, it was understood that the progenies of Mohini samba x CO 47 would be more useful for improving grain iron content with the desirable quality traits viz., kernel length, kernel length after cooking, kernel breadth after cooking, linear elongation ratio and breadth wise expansion ratio. Similarly Rajamudi x ASD 16 segregants could be used for improving the kernel length, kernel breadth, and kernel L/B ratio, kernel length after cooking, kernel breadth after cooking, breadth wise expansion ratio and grain zinc content.
Pages: 800-805 | 606 Views 122 Downloads
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How to cite this article:
K Mohana Sundaram, S Rajeswari, R Saraswathi, P Jayaprakash. Genetic variability studies for yield and its Components and quality traits with high iron and zinc content in segregating population of rice (Oryza sativa L.). Int J Chem Stud 2019;7(3):800-805.
