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不同剂量的~(60)Coγ射线辐照,对黄曲霉菌、杂色曲霉菌、苹果炭疽病菌、梨轮纹病菌和扩展青霉菌等几种病原真菌的致死作用不同。由试验结果看出,用1.0—2.0kGy的辐照剂量可以杀死或大部分杀死并抑制以上各菌的孢子或菌丝体。黄曲霉菌孢子的D_(10)值在0.3—0.5kGy之间,杂色曲霉菌孢子的D_(10)值在1.0—1.5kGy之间,苹果炭疽病菌孢子的D_(10)值为0.7kGy左右,梨轮纹病菌孢子的D_(10)值为0.85kGy左右。在马铃薯琼脂培养基平皿培养时,2.0—2.5kGy辐照可以抑制扩展青霉菌的生长。
Different dosages of ~ (60) Coγ-ray irradiation have different lethal effects on several pathogenic fungi such as Aspergillus flavus, Aspergillus versicolor, Colletotrichum gloeosporioides, Rhizoctonia solani and Penicillium expansum. From the test results, it can be seen that the spores or mycelia of the above bacteria can be killed or mostly killed and inhibited with the dose of 1.0-2.0 kGy. The value of D_ (10) of Aspergillus flavus spores was between 0.3-0.5kGy, the value of D_ (10) of Aspergillus versicolor spores was between 1.0-1.5kGy, the value of D_ (10) of spores of apple anthracnose was 0.7kGy , The D_ (10) value of spores of pear pest was about 0.85 kGy. 2.0-2.5 kGy irradiation can inhibit the growth of extended Penicillium when cultured on potato agar medium.