作　　者： ; ; ; ; ;

机构地区： 中国农业大学

出　　处： 《农药学学报》 2003年第3期39-44,共6页

摘　　要： 采用离体平皿法对来自新疆等4个省区的14个西瓜品种进行种子带菌检测、分离纯化和鉴定,并测定了7种杀菌剂和1种种衣剂对种子带菌的消毒处理效果。结果表明,种子表面携带的优势菌群主要为青霉属Penicilliumspp.、根霉属Rhizopusspp.、曲霉属Aspergillusspp.、交链孢属Alternariaspp.和镰孢属Fusariumspp.;种子内部寄藏真菌主要为青霉属、根霉属和曲霉属;不同品种之间种子表面携带真菌种类差异较大,种子内部寄藏真菌种类差异不明显;种壳带菌率一般高于种仁带菌率。15%·霜·福悬浮种衣剂、福美双和代森锰锌对种子带菌消毒效果优于多菌灵、敌磺钠、霉灵、拌种灵和甲霜灵。 The disinfection effect of several fungicides on seedborne fungi of watermelon seeds were determined by means of petridish testing. The results showed that Penicllium spp., Rhizopus spp. Aspergillus spp., Alternaria spp. and Fusarium spp. were the main seedborne fungi on the surface of 14 major watermelon varieties from Xinjiang, Anhui, Beijing and Fujian provinces in China; Penicllium spp., Rhizopus spp., Aspergillus spp. represented the main internally seedborne fungi. The fungi on the surface of seed were significantly different from each other, but the seedborne fungi inside the seed showed no difference. 15% HMT SCF(hymexazol∶metalaxyl∶thiram=3∶2∶10), thiram and mancozeb provided a good control on seedborne fungi. Their inhibiting effect was much better than that of other tested fungicides.

关 键 词： 西瓜 种子带菌 杀菌剂 消毒处理

领　　域： [农业科学] [农业科学] [农业科学] [农业科学]