highly significantP <0.0001
Geographic variation in Cry3 susceptibility Keith County grid The effect of geographic location of larger scale population clusters was highly significant for both Cry3Bb1 (F = 74.42; df = 1, 226; P <0.0001) and mCry3A (F = 84.14; df = 1, 226; P <0.0001) traits within the Keith County grid.