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本试验明确了小麦散黑粉病菌的冬孢子在不同越冬处理中,以地表处理的冬孢子萌发率最高,酸性条件有利于冬孢子萌发,而中性和碱性条件不利于冬孢子萌发,萌发的最适宜pH范围是3—5。冬孢子在光照、黑暗、12h/12h光暗交替处理下能够较好地萌发,其中,12h/12h光暗交替处理下的萌发率显著高于光照和黑暗处理的萌发率,冬孢子在相对湿度(RH)大于90%才可萌发,RH等于100%的萌发率为30．5%,而RH在90%以下不萌发。氧气促进冬孢子萌发。
The results showed that the teliospore germination rate was the highest in the treatments of winter overwintering, and the acidic conditions were favorable for the teliospore germination. However, the neutral and alkaline conditions were not conducive to the germination and germination of the teliospores The most suitable pH range is 3-5. The teliospore could germinate better under light, darkness and 12h / 12h light and dark alternation, in which the germination rate of 12h / 12h light and dark alternation was significantly higher than that of light and darkness, (RH) greater than 90% germination, RH equal to 100% of the germination rate was 30.5%, while RH less than 90% does not germinate. Oxygen promotes teliospore germination.