Character association and path analysis in sunflower (Helianthus annuus L.)
2010
H.C.Sowmya, Y.G.Shadakshari, K.J. Pranesh, Arpita Srivastava and B. Nandini
The present study was undertaken during Summer 2009 at ZARS, GKVK, Bangalore. The material used in this study wasprovided by All India Co-ordinated Research Project on Sunflower, Bengaluru. The base material comprised of thirty eightsterility maintainer lines (‘B’ lines) and thirty eight fertility restorer lines (‘R’ lines). The studies on correlation and pathcoefficient analysis in sunflower (Helianthus annuus L.) showed that days to 50% flowering, days to maturity, plant height, headdiameter, seed filling per cent, 100 seed weight, total dry matter per plant and oil content characters were positively andsignificantly correlated with seed yield per plant. Among these characters head diameter recorded maximum direct effect on seedyield per plant whereas all other characters recorded low direct effect. Seed filling per cent and plant height recorded maximumindirect effect on seed yield per plant through head diameter. The results of the study revealed that the character head diametercould be given emphasis for isolation of desirable genotypes, with high genetic potential for seed yield.
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