Ecology, Environment and Conservation Paper

Vol 23, Issue 3, 2017; Page No.(1591-1594)

VARIABILITY, DEGREE OF GENETIC DETERMINATION AND GENETIC ADVANCE IN RECOMBINANT INBRED LINES OF PEA (PISUM SATIVUM L.)

Rajat Kumar Singh, Mithilesh Kumar Singh and Jairam Amadabade

Abstract

The present experiment was conducted to assess the variability, heritability and genetic advance under selection in recombinant inbred lines (RILs) of Pea. Outcome of the experiment revealed highly significant genotypic differences for all the quantitative traits studied. GCV for plant height and number of primary branches was highest (31.77 and 31.14) that further showed narrow difference with PCV (31.83 and 32.60) of respective traits that indicates that sufficient genetic variability is present with minimum environmental influence and selection would be effective. Differences in plant height showed highest heritability (1.00) and 25-seed weight differences showed lowest magnitude of heritability (0.3). Highest genetic advance as percent of mean was shown by plant height (65.31) and lowest for days to maturity (2.94). Plant height and number of primary branches showed high heritability (1.00 and 0.91) and high genetic advance as percent of mean( 65.31 and 61.28). So, these two traits can together be considered in selection procedure to modulate productivity of pea that seems much sound than either of the criterion considered solely.

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