Archives

The association between yield traits was worked out in F2 generation in 36 crosses of rice. Seed yield had
highly significant positive correlations with total biomass both phenotypically and genotypically and
1000 weight genotypically. Path analysis revealed that number of filled grains per panicle had the
highest positive and direct effect on grain yield followed by total biomass, kernel length and harvest
index. Number of filled grains per panicle showed highly positive indirect effect through panicle density,
total biomass and days to 50% flowering on grain yield. The study revealed that genetic improvement of
grain yield in rice is admissible by selecting character having high positive correlation and positive
direct effect.
Keywords: Character association, path analysis, rice.