影响苹果树腐烂病菌侵染致病的流行因子

林晓,孙传茹,王彩霞,练森,董向丽,李保华

Epidemic Factors Affecting the Infection and Occurrence of Valsa mali

LIN Xiao,SUN ChuanRu,WANG CaiXia,LIAN Sen,DONG XiangLi,LI BaoHua

表4 富士苹果枝条经浸水冰冻和失水处理后再接种腐烂病菌的发病率

Table 4 Disease incidence with standard deviations of inoculation sites with mycelium cakes of V. mali on the Fuji apple branches placed on nature condition for different times after frozen for 24 h at 3 temperatures (%)

失水处理时间 Drying time (h) 处理温度 Temperature (℃) 均值 Mean -25 -7 0 2 9.3±12.8 4.0±8.3 5.3±9.2 6.2±10.3e 6 17.3±14.9 13.3±9.8 13.3±12.3 14.7±12.4cd 12 29.3±16.7 6.7±12.3 8.0±12.6 14.7±17.3cd 24 30.7±27.1 14.7±19.2 10.7±14.9 18.7±22.3c 36 48.0±16.6 18.7±17.7 33.3±23.5 33.3±22.6b 48 42.7±18.3 32.0±22.4 20.0±22.7 31.6±22.8b 72 85.3±23.3 66.7±25.8 34.7±25.6 62.2±32.3a 均值Mean 37.5±29.7A 22.3±26.4B 17.9±20.9B 25.9±27.2