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目前栽培的甘兰型油菜品种普遍感染病毒病。据调查,1975～1980年五年中,安徽省油菜病毒病先后出现过三次流行年,给生产上带来了一定损失。我们从1978年起,连续三年进行甘兰型油菜抗病毒病品种的筛选鉴定工作。经多次田间和室内重复鉴定以及试种,初步筛选出一批适应我省种植的抗病、丰产、优质的品种。本文试就甘兰型油菜品种筛选鉴定工作,以及其抗病能力衰退原因进行了评论。
At present, cultivars of Brassica napus are commonly infected with virus disease. According to the survey, in the five years from 1975 to 1980, there were three epidemic years of rape virus disease in Anhui Province, which brought some losses to the production. Since 1978, we have conducted screening and identification of Brassica napus anti-virus varieties for three consecutive years. After many field and indoor repeated identification and test, a preliminary screening of a number of plants adapted to our province resistant, high yield, high quality varieties. This paper tries to make a review on the selection and identification of Brassica napus cultivars, and the reasons for the decline of disease resistance.