Year: 2018 | Month: June | Volume 11 | Issue 3
Genetic Divergence Analysis for Quantitative Traits in Rice (Oryza sativa L.)
DOI:10.30954/0974-1712.06.2018.7
Abstract:
The present investigation was conducted with 64 rice germplasm to investigate the nature and magnitude of genetic divergence during Rabi 2016. The analysis of variance showed significant differences for all the characters studied among the genotypes. Based on the analysis, the genotypes were grouped into 3 clusters. Maximum number of 58, 4 and 2 genotypes was grouped under cluster II, III and I respectively. Maximum inter cluster distance was observed between cluster II and III (45.279) followed by cluster II and I (37.703) indicates wider the genetic diversity between genotypes. Cluster I showed highest mean for seed yield per plant (26.60 g) followed by cluster III. Milling percentage, panicle length and panicle weight (0.05%), number of productive tillers per plant and number of grains per panicle were failed to contribute significantly towards genetic diversity. Plant height (39.51%), kernel breadth after cooking (14.48%), kernel length after cooking (7.59%) were found to be the most contributing traits towards genetic diversity. Hence these traits could be focused for selection while improving grain quality and yield.
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