环境因子对莱氏野村菌cq菌株生长发育的影响

he effects of environmental factors on growth,sporulation and germination of the entomopathogenic fungus, Nomuraea rileyi cq strain, isolated from Silkworm, were studied in the laboratotry. Temperature has the same effects on the growth , sporulation and germination of the cq strain. The optimum temperature is 23℃and 32℃or higher temperature could obviously inhibit the growth,sporulation and germination. The optimum pH for the growth ,sporulation and germination of the cq strain ranges from 6.2 to 7.0; The photoperiod of full light (24h) enhances sporulation and the full darkness(24h) benefits the growth of the colony. When lighted under the condition of UV(40w,45cm) for 2min ,the germination rate was reduced by 16% contrast to control after 96h; while lighted for 8min ,the germination rate was only 7% after 96min.