【摘要】 采用ISTA滤纸法检测得出:20%邻烯丙基苯酚悬浮种衣剂按1∶30~1∶90药种比(质量比)包衣处理“中农8号”和“长春密刺”黄瓜品种的种子,对黄瓜种子安全,种子发芽率分别达到95.75%~97.75%和80.00%~84.25%;PDA平板上检测药剂包衣处理对黄瓜种子带菌消毒效果显示,消毒处理效果达到66.67%~100%。菌丝生长速率法和染色处理结合显微技术实验证实,邻烯丙基苯酚对危害黄瓜秧苗的土传病原菌腐霉病菌Pythium aphanidermatum和立枯丝核菌Rhizoctonia solani具有较强的抑制作用,EC50值分别为27.59和34.16μg/mL;药剂处理使供试病菌的菌丝发生中空、解体断裂等异常现象。20%邻烯丙基苯酚悬浮种衣剂1∶30~1∶90包衣处理黄瓜种子后接种供试病菌,对腐霉病菌和立枯丝核菌的防病效果分别达到73.31%~100%和85.16%~100%;随着药剂包衣处理浓度的增大,邻烯丙基苯酚防治两种病原菌侵染危害黄瓜秧苗的效果提高,等效或者优于常规药剂福美双种子处理。更多还原

【Abstract】 Germination safety to cucumber seeds(two cultivars Zhongnong No.8 and Changchun Mici),coated with 20% o-allylphenol seed coating formulation at the ratio of 1∶30～1∶90(ratios of seed weight)was tested by ISTA’s blotter paper method.The results showed that o-allylphenol seed treatment is safe to seed germination,the germination ratios for both cultivars were 95.75%～97.75% and 80.00%～84.25%,respectively.Based on the PDA test,the control effect of seed disinfection was up to 66.67%～100%.Hyphal growth rate test and microscopy demonstrated that o-allylphenol markedly inhibited the growth of two harmful soil-borne pathogens,Pythium aphanidermatum and Rhizoctonia solani,with EC50 value ranging from 27.59 to 34.16 μg/mL.The o-allylphenol treatment更多还原