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对浙江省粮食中分离的８０株黄曲霉菌进行产菌核性能实验研究，在含３％ＮａＮＯ３蔡氏琼脂培养基上３０℃培养１２天，有５１．３％的黄曲霉菌株产生菌核，平均产菌核直径是８２７±１３１μｍ；没有发现产丰富小菌核产毒Ｓ型菌株；产菌核菌株大都是Ｌ型菌株；产毒菌株和非产毒菌株在产菌核比率及数量上差异不明显；在产菌核大小上，两类菌株有差异，产毒菌株产生较小的菌核。
Eighty strains of Aspergillus flavus isolated from grain in Zhejiang Province were tested for their producing bacteria nuclei. After cultured on 30 ℃ for 3 days with 3% NaNO3 Chua’s agar medium, 51.3% of A. flavus strains produced sclerotia with an average of The diameter of the producing bacteria nucleus was 827 ± 131μm. No S-producing strains were found that were rich in producing small-sclerotium. Most of the sclerotium-producing strains were L-type strains. There was no difference in the rate and number of producing bacteria between the producing and non-producing strains Obviously, there are differences between the two strains in the size of the producing bacteria, and the producing strains produce smaller sclerotia.