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在我们研究杉木炭疽病(Colletotri-chum SP)发病规律的过程中,不管在炭疽病的典型病斑上,还是在无症状表现的叶片上,除大量分离到炭疽菌外,还常常
In our study of the pathogenesis of Colletotri-chum SP, we found that in addition to the large numbers of anthrax species isolated on the typical lesion of anthrax and on the asymptomatic leaves,