GENETIC VARIABILITY STUDIES AND MULTIVARIATE ANALYSIS IN F2 SEGREGATING POPULATIONS INVOLVING MEDICINAL RICE (Oryza sativa L.) CULTIVAR KAVUNI
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 35
Abstract
In order to evaluate the relationship between morphological characters in rice cultivars, two populations at F2 generation were examined. Statistical analysis on fifteen biometrical or quantitative characters were studied for estimating descriptive statistics, genotypic coefficient of variation (GCV), phenotypic coefficient of variation (PCV), genetic advance and heritability (Broad sense). Maximum standard deviation for total number of spikelets per panicle and total number of filled grains per panicle were recorded for both the crosses. Highest PCV and GCV was observed for panicle exsertion, total number of filled grains per panicle in ASD 16 x Kavuni (Cross I) and productive tiller in Swarna Sub 1x Kavuni (Cross II). Difference between GCV and PCV was low in most of the characters studied. High estimates of heritability and genetic advance were observed for flag leaf width for both the crosses. Both positive and negative skewness was observed for different traits, while platykurtic distribution was observed for most of the traits in F2 populations of two crosses.
Authors and Affiliations
SUVARNA RANI CHIMMILI
Keywords
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