人工引变四倍体西瓜,并以四倍体西瓜为母本与普通二倍体西瓜授粉杂交,生产三倍体无子西瓜种子,在西瓜选育新种类型具有科学理论意义和生产实际价值。应用秋水仙硷引变多倍体植物是最有效的方法。本文简要说明应用秋水仙硷引变四倍体和产生三倍体无子西瓜选种经过及其结果。 Artificial transformation of tetraploid watermelon, and tetraploid watermelon as the female parent and common diploid watermelon hybridization to produce triploid seedless watermelon seeds, breeding new species in watermelon has scientific significance and practical value . Applying colchicine to change polyploid plants is the most effective method. This article briefly describes the application of colchicine induced tetraploid and triploid seedless watermelon seed selection and its results.