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1975—1985年通过收集、整理地方品种和室内外定向重复交叉抗性鉴定筛选的技术途径,培育出了冬常菜J78-09。它抗病毒病(TuMV)能力较强,据测定,人工苗期接种结果,发病率为11—17%,病情指数3.5—5.6,而对照品种(三月慢)发病率78—92%,病情指数32—45.7。在大田自然感病条件下,发病率为11—13%,病情指数为1.6—7.3,而对照品
From 1975 to 1985, we collected and sorted out the local varieties and indoor and outdoor directional cross-resistance screening and identification of technical ways to cultivate the winter dish J78-09. It has a strong ability of anti-viral disease (TuMV). According to the results of the artificial seedling inoculation, the incidence rate is 11-17% and the disease index is 3.5-5.6, while the control variety (slow in March) is 78-92% Index 32-45.7. In the field of natural disease conditions, the incidence was 11-13%, the disease index was 1.6-7.3, while the reference substance