种质资源的抗病性鉴定,既是种质资源研究的基本内容,也是抗病育种不可分割的一部分。对西瓜种质资源的抗病性鉴定及抗病育种研究,西方发达国家早在本世纪初就已开始进行,并相继培育出了不少抗病品种,如‘Conqueror’、‘Charleston Gr-ay’、‘Calhoun Gray’、‘Summit’、‘Crimson Sweet’、‘Jubilee’、‘Di-xielee’、‘Smokylee’等。这些品种近几年来已先后引入我国,对我国西瓜育种工作,特别是抗病育种工作起到了一定的促进 Identification of germplasm resistance is not only the basic content of germplasm resources research, but also an integral part of disease resistance breeding. Resistance to watermelon germplasm identification and disease resistance breeding research, western developed countries as early as the beginning of this century has already begun, and have developed a lot of resistance varieties, such as’ Conqueror ’,’ Charleston Gr-ay ’,’ Calhoun Gray ’,’ Summit ’,’ Crimson Sweet ’,’ Jubilee ’,’ Di-xielee ’,’ Smokylee ’and many more. These varieties have been introduced into our country in recent years, and have promoted the watermelon breeding work in our country, especially the disease-resistant breeding