本文依据自己的育种实践 ,对耐旱丰产玉米育种的几个问题进行了讨论。认为玉米的耐旱性和丰产性在适当的选择环境下 ,运用相应的选择方法是可以有机结合在一起的 ;在育种实践中 ,田间相对萎蔫度、ASI、RI(修 )是评价材料耐旱性的有效方法。发现目前广泛应用的骨干系中不乏玉米耐旱基因。认为水旱平行交替环境是选育耐旱、高配自交系的必要条件。并对耐旱丰产玉米杂交种的性状特点进行了研究 Based on my own practice of breeding, this article discussed several issues of breeding of drought-tolerant maize. It is considered that the drought tolerance and high yield of maize can be organically combined with the corresponding selection method under appropriate selection environment. In the breeding practice, the relative wilting degree in the field, ASI and RI (repair) Sexually effective method. It is found that there are many maize drought-tolerance genes in the widely used backbone. It is considered that the parallel alternation of water and drought is the necessary condition for breeding drought-tolerant and high-performance inbred lines. The characters of drought-resistant and high yielding maize hybrids were also studied