西瓜抗小西葫芦黄花叶病毒种质资源鉴定

Evaluation of Watermelon Germplasm for Resistance to Zucchini Yellow Mosaic Virus

通过对西瓜抗ZYMV病毒病资源的抗性鉴定,为资源创新利用及抗性育种提供基础材料。以西瓜甜瓜中期库内保存的754份西瓜种质资源为材料,通过苗期摩擦子叶法接种病毒鉴定西瓜对ZYMV的抗性,结果表明:4份材料对ZYMV免疫,1份抗病。其中2份免疫材料‘PI494530’、‘PI595203’和1份抗性材料‘PI299536’来自美国,另外2份免疫材料‘2013K12’和‘2013K15’来自我国西瓜甜瓜中期库。

We evaluated 754 watermelon accessions preserved in the National Mid-term Genebank for Watermelon ＆ Melon, for their resistance to ZYMV using the method of mechanical inoculation at seedling stage. Four accessions were immune and one （PI299536） was resistant to ZYMV in our test. Among 5 accessions PI494530,PI595203 and PI299536 are from America, and 2013K12 and 2013K15 are from National Mid-term Genebank for Watermelon ＆ Melon.