approached significancep = 0.096
The combined effect of both QTL (η 2 = 46.4%) (Table 3 ) was greater than the effect of either QTL individually, supporting the hypothesis that the two QTL contribute additively to increased disease resistance. Further ANOVA using peak marker data showed that the interaction effects between Qdb.ssdhui-6DL and Qdb.ssdhui-6DS approached significance ( p = 0.096) but did not meet the 0.05 threshold.