农作物育种实践证明,凡是著名的优良品种,没有一个不是远地域不同生态型多亲本复合杂交选育出来的.我们在开展西瓜作物的常规育种和杂种优势利用的时候,认识到为了掌握西瓜作物的亲本选配规律性,必须对不同地理起源的生态型进行分类研究,只有这样才能取得育成优良新品种和充分利用杂种优势的效果. Crop breeding practice proved that none of the well-known fine varieties, not far from the different ecological multi-parent hybrid breeding .We carry out routine breeding and heterosis utilization of watermelon crops, we realized that in order to master the watermelon crop The principle of parental selection and matching must be studied on the ecotypes of different geographical origins. Only in this way can we obtain the effect of breeding fine new varieties and making full use of heterosis.