Study of variability and genetic diversity (D2 ) in rice (Oryza sativa L.)

Abstract

The present investigation was conducted during Kharif 2023 at the Agricultural Research Farm, S.M.M. Town PG. College, Ballia. A wide range of variation in mean performance of genotypes was observed for all the characters; the highest grain yield per plant was obtained in MTU-1155. The high magnitude of PCV was observed for panicle-bearing tillers per plant. High heritability coupled with high genetic advance was observed for disease lesion length. all the 132 Indica rice cultivars were grouped under ten (10) different clusters. The maximum number of genotypes was grouped under cluster I (68) and the minimum number of genotypes cluster II, IX and X (1).