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试验材料及方法材料:毒源,(本地大白菜芜菁花叶病毒病重病株),大白菜种子或幼苗,播种盘,灭菌上或蛭石,接种工具,金钢砂(600目)。方法:1、大白菜幼苗的种植:将大白菜各品种种子分别播在播种盘内,其方法同上。待第二片真叶展开至2—3公分时接种。也可将接种霜霉病后2片真叶的幼苗进行接种病毒。2、毒液的制备:
Materials and Methods Materials: Toxin source, (local Chinese cabbage turnip mosaic virus disease), Chinese cabbage seed or seedling, sowing dish, sterilization or vermiculite, inoculation tool, grit (600 mesh). Method: 1, Chinese cabbage seedlings planted: the Chinese cabbage varieties were sown in the sowing tray, the method above. To be the second piece of true leaves spread to 2-3 cm vaccination. It is also possible to inoculate the seedlings of 2 true leaves after inoculation with downy mildew. 2, venom preparation: