Author/Authors :
Salehi، Mohammad Saied نويسنده Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran , , Golparvar، Ahmad Reza نويسنده Department of Agronomy and Plant Breeding, Khorasgan (Isfahan) Branch, Islamic Azad University, Isfahan, Iran , , GHEISARI، MOHAMMAD MEHDI نويسنده Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran , , Armin، Arezoo نويسنده Department of Agronomy and Plant Breeding, Islamic Azad University, Khorasgan (Isfahan) Branch, Isfahan, Iran , , Hadipanah، Amin نويسنده MSc Graduate, Horticultural-medicinal plants Science, Jiroft Branch, Islamic Azad University, Jiroft, Iran ,
Abstract :
Correlation and path coefficient analyses were studied in twenty-five diverse genotypes of sunflower in order to understand the relationship and contribution on eight characters towards the seed yield. The seed yield exhibits highly significant and positive correlation with plant height, oil yield and number of seeds per head. Days to full flowering and head diameter showed significant and negative correlation with seed yield. Path coefficient analysis revealed that no.seed/head had the highest and positive direct effect on seed yield. On the other hand, days to full flowering and head diameter showed the highest and negative direct effect on seed yield. On the other hand, the traits no.seed/head, 1000-seed weight and plant height showed the positive and direct effects on oil yield. Over all, the study revealed the importance of selection for the higher amounts of these traits and lower amounts of days to full flowering as the best indirect selection criteria to improve seed and oil yield in sunflower breeding programs especially in early generations.
