【作者】 徐秉良；

【Author】 XU Bingliang (Plant Protection Department Of Gansu Agricultural University, Lanzhou 730070)

【机构】 甘肃农业大学草业学院植保系；

【摘要】 深绿木霉（Trichoderma atroviride）T2菌株对黄瓜黑星病菌（Cladosporium cucumerinum）有很强的抑制作用,温度对深绿木霉的抑菌作用有一定的影响。在20～35℃的温度条件下,深绿木霉均有抑菌效果,尤其在25～30℃条件下抑菌效果最好,深绿木霉的生长曲线符合Y=K/(1+ae^bx),而黄瓜黑星菌的生长曲线符合Y=axe^bx。15℃以下该深绿木霉菌株无抑菌作用。24h自然光照和黑暗与光照交替条件对抑菌作用有一定影响。更多还原

【Abstract】 The T2 strain of Trichoderma atroviride can strongly inhibit the growth of Cladosporium cucumerinum. The temperature affect greatly on the inhibition of the Trichoderma. With temperature range of 20～35℃, T. atroviride can inhibit the pathogen effectively, especially with 25～30℃.The growth curve of Trichoderma is fitted to the equation Y=Kl (1+ae^bx), while the growth curve of C. cucumerinum is fitted to the equation Y=axe^bx. When the temperature was below 15℃, the Trichoderma did not able to inhibit the growth of the pathogen. Continuous natural illumination or alternative illumination could affect its antagonistic activity.更多还原