论文部分内容阅读
葡萄茎枯病菌是一种适生性十分广泛的检疫性真菌,国内尚未有发生为害报道。2012年宁波检验检疫局全国首次从进境意大利苹果种苗中截获了该病菌,为探索有效检疫处理和病菌防治手段,对该菌生物学特性和防治药剂室内筛选开展了研究。结果表明,葡萄茎枯病菌在供试PDA、OA、MEA、V8、H、CMA培养基上10~30℃条件下均可生长,35℃生长受到完全抑制,以在PDA培养基上25℃条件下生长速度最快。供试菌株对pH值适应范围较广,pH值4~11条件下均可生长,以pH值为8时生长最快。室内药剂筛选试验表明50%速克灵可湿性粉剂等7种药剂处理对病原菌菌落生长抑制率达100%,22.7%二氰蒽醌悬浮剂等12种药剂处理,对病原菌分生孢子萌发抑制率为100%。
Gramineous stem blight is a very suitable for a wide range of quarantine fungi, no harm has been reported in China. Ningbo Inspection and Quarantine Bureau in 2012 for the first time imported from Italy apple seedlings intercepted the bacteria, in order to explore the effective quarantine treatment and prevention and control of bacteria, the bacteria biological characteristics and prevention and treatment of pharmacy indoor screening carried out a study. The results showed that the photosynthetic bacteria could grow in the medium of PDA, OA, MEA, V8, H and CMA at 10-30 ℃, and completely inhibited at 35 ℃ in the medium of PDA at 25 ℃ Under the fastest growth. The test strains to adapt to a wide range of pH, pH 4 to 11 conditions can grow to pH 8 fastest growing. Indoor pharmacy screening tests showed that 50% instant Kling WP and other 7 kinds of agents on the pathogen colony growth inhibition rate of 100%, 22.7% dicyandiamide quinone suspending agent and other 12 kinds of agents on the pathogen conidia germination inhibition rate It is 100%.