GENERATION MEAN ANALYSIS FOR MORPHO-PHENOLOGICAL TRAITS IN BREAD WHEAT (Triticum aestivum L.)
Journal Title: International Journal of Genetics - Year 2016, Vol 8, Issue 6
Abstract
The study was carried to investigate the inheritance of gene action for various morpho-phenological traits in bread wheat at the Haryana Agricultural University, Hisar during rabi 2013-14 and 2014-15. A set of six generations (P1, P2, F1, F2, B1 and B2) of each two cross combinations (P 12210/Raj MR 1 and P 12231/Raj MR 1) was grown in the compact family block design in three replications and the morpo-phenological traits such as plant height, biomass per plant, harvest index, days to heading and days to maturity were observed. High values of PCV, GCV, heritability and genetic advance were observed for all the traits in the study. The results regarding gene effects indicated that plant height, days to heading and days to maturity were predominantly governed by additive gene effects, while biomass per plant and harvest index were predominantly governed by dominance gene effects. Components of genetic variances indicated additive variance for days to heading and days to maturity and dominance variance for biomass per plant, while both additive and dominance components of genetic variance were important for plant height and harvest index. Thus, it is suggested to perform selection in early generations for phonological traits like days to heading and days to maturity while selfing for few generations required before selection in remaining traits.
Authors and Affiliations
NIKETA YADAV, S. S. DHANDA, SATBEER SINGH
Keywords
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