Assessment of Genetic Variability and Heritability in Segregating Popuations
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 3
Abstract
The present study was carried out to assess the genetic variability, heritability, genetic advance for yield and yield component characters in two cross viz., BPT 5204 X ADT 45 and BPT 5204 X JGL 1798. In general, most of the characters viz., plant height, number of productive tillers, filled grains per panicle, spikelet fertility, 1000 grain weight, seed yield per plant, grain length, grain width and L/B ratios in cross BPT 5204 X ADT 45 having higher mean performance when compared with the cross BPT 5204 X JGL 1798. High PCV and GCV showed high heritable variation which was recorded high in the characters viz., productive tillers per plant, and sterile grains per panicle and grain yield per panicle in both the crosses. Selection may be effective for the character with high heritability accompanied with high genetic advance which indicated that the heritability is due to additive gene effects. Similarly, high heritability with high genetic advance was observed for grain width in cross BPT 5204 X ADT 45 and the characters grain breadth and L/B ratios in cross BPT 5204 X JGL 1798.
Authors and Affiliations
Prabhu. S. M, N. Meenakshi Ganeshan, P. Jayaprakash, R. Selvakumar
Keywords
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