1983年7月北京植病学会蔬菜组在北京农林科学院植保所召开了大白菜“干烧心”发生的学术报告讨论会,现将讨论的情况简报如下: 一、病症表现:“干烧心”发生在结球期,的球叶部份。外表正常,但剥开时,可以见到个别叶片边绿变干黄化,叶肉呈干纸状。有时病斑扩展,叶片边绿呈水渍状,后变褐色,病部液汁发粘,没有臭味,病、健组织有比较清楚的分界线。有时出现干腐、湿腐症,叶球 1983 July Beijing Institute of Plant Diseases Vegetable Group held a Beijing Academic Institute of Plant Protection, Beijing Academy of Agriculture and Forestry, “dry heartburn,” the academic report of the seminar, the discussion of the current situation are as follows: First, the symptoms: “heartburn” occurred in Knot ball, part of the ball leaves. The appearance of normal, but when stripped, you can see the green leaves of individual leaves dry yellow, leaf was dry paper. Sometimes the lesion spreads, leaves edge green was water-stain, after turning brown, diseased juice sticky, no odor, disease, health organizations have a more clear line of demarcation. Sometimes dry rot, wet rot disease, leaf ball