RppSLN enhances the yields of maize hybrids under the natural infection of SCR in the field. (a) The phenotypes of the hybrids C7-2, Z58, F35, M35 with N531_R, and N531_S under natural infection with SCR in the field. Scale bars: 30 cm. (b) The ear phenotypes of the field hybrids C7-2×N531_R, C7-2×N531_S, Z58×N531_R, Z58×N531_S, F35×N531_R, F35×N531_S, M35×N531_R, and M35×N531_S under conditions of SCR. Scale bars: 5 cm. (c) The ear weight, single-ear-grain weight, and hundred-grain weight of the hybrids C7-2×N531_R, C7-2×N531_S, Z58×N531_R, Z58×N531_S, F35×N531_R, F35×N531_S, M35×N531_R, and M35×N531_S. The values are presented as the means ± standard deviations of the data. ** p < 0.01 (Student’s t-test).