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呼和浩特市郊区5月份黄瓜大棚内,南北两侧的土温不一,出盘前10d是否存在18～20℃适宜产果萌发的±温,对菌核病菌(Selerotinia sclerotiorum)出盘的早晚和数量有重要影响。棚内北半侧土温较低,是子囊盘出土比南半侧早、出盘持续期长,数量多和发病重的重要原因。由于充足的灌溉,棚内土壤含水量不是影响出盘时期和数量的限制因子。当年病害的严重程度,主要决定于5月下旬至6月中旬出盘期间,是否存在对孢子萌发侵入有利的20～25℃气温,和大于80％左右的相对湿度。
In Hohhot suburban cucumber greenhouse in May, north and south on both sides of the soil temperature varies, 10d before the disk whether there is 18 ~ 20 ℃ suitable for the germination of ± temperature, the sclerotiorum (Selerotinia sclerotiorum) out of the morning and evening discounts Have a significant impact. The temperature in the northern half of the greenhouse is low, which is an important reason for the excision of the ascus plate earlier than the south half, the prolongation of the export plate, the large number and the heavy incidence. Due to adequate irrigation, shed soil moisture is not a limiting factor affecting the period and number of outputs. The seriousness of the disease in that year mainly depends on whether there is a temperature of 20-25 DEG C that is favorable for spore germination invasion and a relative humidity of more than 80% during the period from late May to mid-June.