引 言 厚皮甜瓜(Cucumis melo L)是新疆主要特产之一。但是,自1970年以来,甜瓜生产遭受各种病害(白粉病、病毒病、枯萎病、疫霉病、腐霉病等)的威胁,尤其是疫霉病的发展甚速,已有许多地方因病害不能种植,成为当前急待解决的问题。为此,我区曾进行品种比较,一代杂种利用、药物防治以及栽培措施等多种试验,均未取得显著成效。 据报导:远缘杂交是根本改变有机体遗传本质的有效方法,获得异源多倍体,是 Introduction Cucumis melo L is one of the main products of Xinjiang. However, since 1970, melon production has been threatened by various diseases (powdery mildew, viral disease, blight, phytophthora, pythium, etc.), and in particular the development of Phytophthora blight, there have been many causes Diseases can not be planted and become an urgent problem to be solved. To this end, our area has conducted variety comparison, generation hybrid utilization, drug control and cultivation measures and other tests, have achieved no significant results. It has been reported that distant hybridization is an effective way to fundamentally change the genetic nature of organisms and obtain heterologous polyploid