“…Though sunflower hybrids are high yielders, the G x E interaction influences their performance (Chigeza, Mashingaidze, & Shanahan, 2014). Biradar, Vijaykumar, Naidu, Vastrad, & Immadi (2019) analyzed 60 hybrids in two environments and reported a significant line x tester x environment effects for head diameter, seed yield, days of flowering, plant height and 1000-seeds weight. The main objective of the present study was to determine the combining ability in sunflower, using a line x tester method with five lines and four testers.…”