作物雄性不育性在杂种一代利用上有着重要的作用,向来为育种工作者所重视。我们于1989年在一个西瓜材料中发现了几株雄性不育株,显微镜观察表明,其花药内只有极少量的空瘪不育花粉。将同一株系中可育株花粉授到雄性不育株的雌花柱头上,下代分株系种植,结果发现,有些株系无雄性不育株的出现,而 Crop sterility plays an important role in the utilization of hybrids and has always been valued by breeding workers. We found several male-sterile plants in a watermelon material in 1989 and microscopic observations showed very little empty sterile male sterile pollen in their anthers. The same strain of fertile plants pollinated female sterile male sterility head stigma, the next generation of strains planted, found that some lines without the emergence of male sterile lines, and