灰葡萄孢分生孢子萌发的最适温度为 1 9℃ ,萌发率达 94 .3 %;在空气较多的环境中孢子萌发率较高 ,达87.8%,淹水则不利于孢子萌发 ,萌发率仅为 5.8%。 1 %蔗糖、1 %葡萄糖、1 %乳糖、1 %硫酸铵、0 .2 mol/ L磷酸二氢钾、番茄汁液都可以促进分生孢子萌发 ,以 1 %蔗糖效果最好。分生孢子在 p H3～ 9的条件下均可萌发 ,以 p H5最为适宜。孢子悬浮液在高浓度 ( 6× 1 0 5以上 )下会抑制孢子萌发 ,光照和黑暗处理对孢子的萌发影响不大 The optimum temperature for conidiospore germination of Botrytis cinerea was 19 ℃ and the germination rate was 94.3%. The spore germination rate was 87.8% higher in air with more flooding, which was detrimental to spore germination and germination The rate is only 5.8%. 1% sucrose, 1% glucose, 1% lactose, 1% ammonium sulfate, 0.2 mol / L potassium dihydrogen phosphate, and tomato juice all promoted conidial germination. Conidia can germinate under the conditions of p H3 ~ 9, with p H5 the most suitable. The spore suspension inhibited the spore germination at high concentration (above 6 × 105), and the light and dark treatments had little effect on the spore germination