论文部分内容阅读
我国栽培的十字花科植物种类很广泛,但栽培面积大而经济价值高的在长江流域及西南地区以油料作物的油菜(Brassica Chinensis,B.Campestris,B.cernua 及 B.na-pella)为主;在黄河流域及其以北地域以冬季蔬菜的大白菜(Brassica pekinencis)为主。在这些作物上过去一直有病毒病的发生和流行
The species of cruciferous plants cultivated in our country are very broad. However, Brassica chinensis, B.Campestris, B.cernua and B.na-pella with oilseed crops in the large area and high economic value in the Yangtze River and Southwest China are Lord; Chinese cabbage (Brassica pekinencis) dominated winter vegetables in the Yellow River Basin and its north. In the past these crops have been the occurrence and prevalence of viral diseases