Falguni Yadav1*, Sonali Kar2, Prafull Kumar3 and D.P. Singh4
1,2,3Department of Genetics and Plant Breeding, S.G. College of Agriculture and Research Station, Kumhrawand, Jagdalpur, Bastar 494001 (C.G.)
4Department of Agricultural Statistics, S. G. College of Agriculture and Research Station Kumhrawand, Jagdalpur, Bastar 494001 (C.G.)
Email: falguniy377@gmail.com
Received-20.09.2024, Revised-10.10.2024, Accepted-26.11.2024
Abstract: This study was conducted to evaluate the genetic variability and relationship among 17 yield and yield-related traits in 40 rice genotypes, including 4 standard check varieties at S.G. College of Agriculture and Research Station, Jagdalpur, C.G. The analysis of genetic variability revealed that PCV values were found to be slightly higher than the GCV values, moderate PCV and GCV values were observed in number of effective tillers, number of filled grains per panicle and grain yield. Traits like number of effective tillers per plant and number of filled grains per panicle showed high heritability coupled with high genetic advance as percent of mean. In cluster analysis, 40 genotypes were grouped into 5 clusters in which the maximum intra-cluster distance was recorded for cluster V and maximum inter-cluster distance was found between I & II. The maximum value for inter-cluster distance indicates high divergence of genotypes from these clusters. Hence these yield-related traits could be used for selection to improve the genetic potential for rice yield improvement.
Keywords: Rice, Genetic variability, GCV, PCV, Cluster analysis
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