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以本室保存的RBSV沙县毒源,经人工饲养纯化的黑尾叶蝉(Nephotettix cinctice ps)带毒虫,采用笼罩集团接种法,结合试管定苗定虫接种法,进行抗性测定。结果在供试的156个水稻种质材料中,未见免疫类型,但品种间存在明显的抗性差异,其稻苗发病率在2.09%～88.51%,其中属于高抗的类型有包胎矮、包胎矮选、赤块矮3号和珍龙选3号等品种,可供病区推广使用或作为抗病育种的抗源材料。高抗品种不仅能明显降低病苗率、延长病害潜育期,而且能显著缩短带毒虫的寿命、降低无毒虫的获毒率、减少病株内的病毒量。
The RBSV Shaxian source stored in this room was purified by artificial feeding Nephotettix cinctice ps with poisonous insects, the shrouded group inoculation method, combined with the tube Dingmiao pest inoculation method for resistance determination. Results Among the 156 rice germplasms tested, no immune type was found, but there were obvious differences in resistance among the cultivars. The incidence rate of rice seedlings was between 2.09% and 88.51% , Short tire wrap, short block No. 3 and No. 3, such as Jane election for the promotion of the use of the ward or as a disease resistant breeding materials. High resistant varieties can not only significantly reduce the disease rate of seedlings, extend the period of disease incubation, but also can significantly shorten the life span of poisonous insects, reducing the toxicity rate of non-toxic insects, reducing the amount of virus in the diseased plants.