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麦赤霉病的发生规律,国内外已作了不少研究,一般认为应从气象、寄主和菌量等方面综合考虑。稻桩上的子囊壳是赤霉病的主要菌源,子囊壳的发生量反映了地面菌量动态,是发生赤霉病的基本因素。鉴于目前国内尚未见有稻桩上子囊壳的分布型资料,因而我站于1983年4月中旬在观测区内对绿肥田(紫云英)稻桩的子囊壳作了调查,计算出空间分布型,并统计出理论抽样数量。
The occurrence law of wheat scab belongs to many researches at home and abroad. It is generally considered that we should consider it synthetically from aspects of weather, host and bacteria. The stomatal shell on the rice stub is the main source of scab. The occurrence of the stomatal sheath reflects the dynamics of the ground bacteria, which is the basic factor for the occurrence of scab. In view of the fact that there is no distributed data on the asparagus shell of rice paddy in China at present, I surveyed the carapace shell of the paddy rice field (Shiyunui) in mid-April 1983 in the observation area to calculate the spatial distribution Type, and statistical theory of the number of samples.