GENETIC VARIABILITY IN SOYBEAN [GLYCINE MAX (L) MERRILL]
|Y.Pushpa Reni1 and Y.Koteswara Rao2
|Corresponding Author: Y.Pushpa Reni, E-mail: [email protected]|
|Received: 13 July 2013 Accepted: 23 August 2013|
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Forty five genotypes of soybean (Glycine max (L.) Merrill.) of diverse orgin were evaluated in randomized block design with three replications for variability, heritability and genetic advance during kharif 2007. Observations on thirteen characters were recorded. Analysis of variance revealed highly significant differences among the genotypes for the all the characters. High PCV coupled with high GCV, observed for branches per plant, pods per plant, biological yield, harvest index and yield per plant indicate the presence of wider adaptability for these traits in the genotypes studied, suggested the less influence of environment in the expression of characters. High heritability coupled with high genetic advance as percent of mean was observed for days to 50% flowering, plant height, branches per plant, pods per plant, pod length, seeds per pod, 100 seed weight, biological yield, harvest index and seed yield per plant indicating operation of additive gene action and the ample scope for improvement in these traits through simple selection.