engleski

Direct and Indirect Effects of Morphophysiological Traits on Oil Yield of Sunflower (Helianthus annuus L.)

Path coefficient analysis was used to separate direct and indirect effects of several traits on oil yield and to identify traits that could be used as selection criteria in sunflower breeding. A two-year study was conducted on 21 experimental sunflower hybrids produced in the breeding program of the Institute of Field and Vegetable Crops. Significant or highly significant correlations were found among most of the traits studied. A strong positive correlation between oil yield and seed yield, mass of 1000 seeds, total leaf area and total seed number was determined. A negative correlation between oil content and oil yield was also found. Seed yield and seed oil content had the biggest highly significant positive effects on oil yield. Total seed number, plant height, mass of 1000 seeds and head diameter had a high and indirect positive in fluence through SY.

hybrid; oil yield; correlation; path coefficient

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