Journal of FARM SCIENCES, Vol 29, No 4 (2016)

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Genotypic and phenotypic correlations and path coefficient analysis for oleic acid content in sunflower

I.S. Tilak, B. Kisan, Ayyangouda Patil, I. Shankergoud, Vijay Kumar Ghante, Vikas Kulkarni, Kadirvel .

Abstract


Correlation and path coefficient analysis was studied in sunflower. Forty nine crosses along with 14 parents were selected to access the relationship among oleic acid content and other agronomic traits. Observations were recorded on 11 traits viz., days to fifty per cent flowering, leaf size, stem girth, number of leaves per plant, head diameter, days to maturity, plant height,  test weight, yield per plant, oil content and fatty acid content. Randomized block design (RBD) was followed with two replications. Results revealed that days to 50 per cent flowering had significant positive correlation with days to maturity and negative correlation with head diameter at genotypic and phenotypic level. Plant height had significant positive correlation with head diameter, stem girth and oleic acid content at genotypic and phenotypic level. Head diameter had significantly positive correlation with stem girth at genotypic and phenotypic level. Yield per plant had significantly positive correlation with oleic acid content. Path coefficient analysis showed that, plant height and yield per plant had highest positive direct effect on oleic acid content at genotypic and phenotypic level. It is concluded that plant height and yield per plant can be good selection criteria for achieving improvement for oleic acid content in sunflower.

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