论文部分内容阅读
对棉铃黑果病菌的生物学特性进行了初步研究，结果表明：棉黑果病菌菌丝生长的温度范围为１０～３８℃，以２４．５～３０℃为最适；ｐＨ值范围为３～１４，以ｐＨ４～６为最适。分生孢子萌发温度范围为１０～４２℃，以２４～３０℃为最适；ｐＨ值范围为１～１３，以ｐＨ３．７～５为最适。黑暗有利于孢子萌发，光照有一定的抑制作用，尤其是紫外光，在ＲＨ９０％～１００％情况下萌发率较高，棉组织的汁液能显著地促进其萌发
The results showed that the temperature range of mycelium growth was 10 ~ 38 ℃, the optimum temperature was 24.5 ~ 30 ℃, the pH range was 3 ~ 14, with pH4 ~ 6 as the most suitable. The conidial germination temperature ranged from 10 ℃ to 42 ℃, and the optimum temperature ranged from 24 ℃ to 30 ℃. The pH value ranged from 1 to 13, and the optimum pH was from 3.7 to 5. Darkness is good for spore germination and light has a certain inhibitory effect, especially UV light, the germination rate is higher under the condition of RH90% ~ 100%, and the juice of cotton tissue can significantly promote its germination