The helpful approach to increase seed per plant is to select maize vaneties with thicker and longer ears, more ear rows and row grains, higher 1000-seed weight, suit-abale ear height when plant height is maintained definitivness.

• 提高单株籽粒产量的有效途径是在保持一定株高的前提下,应以果穗粗而长、穗行数和行粒数较多、千粒重较高、穗位高适中的类型为主要选择目标。