Correlations and path analyses of yield and other sunflower seed characters

Abstract

Ten sunflower commercial female parental lines were evaluated for various parameters under field conditions to estimate genetic parameters, correlation coefficient, and path analyses. Interactions of seed germination, 1000 seed weight, oil and protein content with seed yield were examined. After three years of observations, positive significant correlations were found while comparing seed yield with 1000 seed weight. Negative significant correlations were found by comparing seed yield and seed germination. Positive but not significant correlation was found while comparing seed yield with oil content in sunflower seed. Path coefficient analysis indicates that 1000 seed weight has maximum positive and seed germination maximum negative direct effect on yield.

U poljskim uslovima su ispitivani različiti parametri kod 10 komercijalnih linija majke u cilju određivanja genetičkih parametara, koeficijenta korelacije i pat analize. Ispitivana je i interakcija između klijanja semena, mase 1000 semena, sadržaja ulja i proteina i prinosa. Nakon tri godine ispitivanja utvrđena je značajna pozitivna korelacija između prinosa semena i mase 1000 semena. Postojala je i značajna negativna korelacija između prinosa i klijavosti semena. Korelacija između prinosa i sadržaja ulja je bila pozitivna, ali ne i statistički značajna. Pat analiza je pokazala da masa 1000 semena ima najveći pozitivan, a klijavost najveći negativan uticaj na prinos semena.