【摘要】 用吸水纸法和直接镜检法,从我国北方6省区10个县(旗)的沙打旺种子及混在种子间的残体上,共检出23个属种的真菌。除多种植物种子常见病原真菌 Alternaria、Cladosporium、Penicillium 和 As-pergillus 外,引起沙打旺田间病害的重要病原真菌 Fusarium sp.Phoma sp.和 Stemphylium botryosum 也都由种子和残体传带;而 Verticillium dahliae 只从种子上检出;Colletotrichum sp、Cercosporidium sp.、Dia-chorella lathyri 和 Polystigma astragali 则只从残体上检出。混在种子间的残体是种传病原真菌的重要载体。更多还原

【Abstract】 By Using the methods of absorbent paper and direct testing for plant debris by microscope,pathogenic fungi were examined from seeds of prairie milkvetch from 6 provinces of North China.There were 23 fungi genera and species examined.In addition to common pathogens Alternaria,Cladosporium,Pennicillium,and Aspergillus,etc.,some important pathogens which cause diseases in the field were examined from seeds and debris too,which were Fusariurn sp.Phoma sp.and Stemphy lium botryosum.The Verticillium dahliae appeared only on seeds while Colletotrichum sp.,Cercosporidium sp.,Diachorella lathyri,and Polystigma astragali were examined out from plant debris.The plant debris mixed among the seeds is an important carrier for the pathogenic fungi of prairie milkvetch seed.更多还原