摘要： 在0,5,10℃下人工接种8种大白菜贮藏期主要真菌分离物。结果有5种可在10℃的条件下侵染大白菜。其中甘蓝链格孢、希金斯刺盘孢及灰葡萄孢可在0～5℃下产孢。而芸薹链格孢、萝卜链格孢则仅在10℃条件下可以产孢。鉴于管理正常的传统型及强制通风型大白菜窖的窖温一般不超过5℃，故带入窖中的芸薹链格孢及萝卜链格孢可侵染白菜而不能产孢。因此在北京郊区引起大白菜烂窖的黑斑病的发生程度，主要决定于田间携入病菌量的多少。希金斯刺盘孢、甘蓝链格孢、灰葡萄孢在0℃下能产孢，因此，这几种菌的菌量在上述两种窖中仍可增加。田间携入量与病害在窖中的发生程度关系较上述两种菌要小。控制窖温对抑制这些病菌在窖中的蔓延有着重要的意义。

关键词: 大白菜, 贮藏, 真菌分离物, 侵染, 温度

Abstract: The experiment results showed that five of eight isolates infected the stored Chinese cabbages at the temperature of 0℃,5℃ and 10℃ respectively.Among them,Alternaria brassicicola,Colletotrichum higginsianum and Botrytis cinerea could sporulate at 0℃-5℃, but A. brassicae and A.raphani could only sporulate at 10℃.Since the temperature in the cellars,both of the traditional and forced ventilation types, did not exceed 5℃, A.brassicase and A.raphani could infect the stored cabbages, but could not sporulate. So the severity of the Alternaria black spot disease of Chinese cabbages in cellars mainly depend on the amount of the fungi brought in from the field.The result also showed that C.higginsianum,A.brassicae and B. cinerea could sporulate below 0℃,so the amount of those fungi could increase in both tydes of cellars,and the quantity of their isolates brought in from fields and the seventy of the disease showed less correlation.In addition,the temperature control in the cellars played an important part in the inhibition of those fungi. The cellars of the forced ventilation type introduced in Beijing was considered to be better for controlling the diseases.

Key words: Chinese cabbages, Stored, Fungi isolates, Infection, Temperature

中图分类号: 

• S634.109