Genetic Variability and Correlation Coefficient Analysis for Yield and Grain Quality Traits in (F8 Generation) of Elite Upland Rice (Oryza sativa L.) Germplasm

Author: Mondem Jyothi Yadav* and Gabriyal M. Lal

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Abstract

The success of most crop improvement programs largely depends upon genetic variability and heritability and the genetic advance of desired traits. Breeders can use the degree and kind of genetic variability to establish the selection criteria and breeding plans to apply for improvement. Therefore, this research aimed to identify potential genotypes and suitable traits of upland rice germplasm for breeding programs. An experiment with 26 upland rice germplasm was done to determine the extent of genetic variability and to conduct a correlation analysis during Kharif-2020. All genotypes exhibited a wide and significant variation for 14 traits. The highest GCV and PCV was recorded for the grain yield per plant followed by biological yield per plant. The high heritability coupled with high genetic advance was exhibited by the number of tillers per plant and number of panicles per plant. Correlation studies revealed that grain yield per plant at genotypic and phenotypic levels was positively

Keywords

Variability, broad-sense heritability, genetic advance, correlation coefficient, upland rice.