Author(s):

T. Jayaprakash, Yadavendra Kumar, S. Robin, A. John Joel and S. Manonmani

Abstract: The investigation was carried out to explore and assess the genetic divergence in 85 genotypes of rice and two checks by employing D² statistic on the basis of grain yield and other important traits. The Mahalanobis’ D² analysis grouped 87 genotypes into ten distinct clusters. Maximum numbers of 21 genotypes were present in cluster IV and least of 1 genotype with X cluster. The highest intra cluster distance was 1337.43 for cluster VII and maximum inter-cluster distance was recorded between cluster X and I (75658.09) followed by cluster X and II (63358.13). The genotypes from these distant clusters could be crossed to attain maximum heterosis with the selection of parents based on spikelet fertility % and panicle length which are highest contributors towards the diversity explored in current study.

Pages: 545-547  |  1256 Views  176 Downloads

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