防治水稻小球菌的化学药剂筛选和毒力测定  

Screen and Test of Biological Activities of 35 Agrochemicals Against Sclerotium oryzae Catt.

作　　者：尹德明[1] 于福安 白雪婧[3] 辛惠普[4] 

机构地区：[1]山东大学药学院,山东济南250012 [2]天津水稻原种场,天津宁河301500 [3]沈阳市园林科学研究院,辽宁沈阳110015 [4]黑龙江八一农垦大学植物保护系,黑龙江大庆163319

出　　处：《农业环境科学学报》2007年第B03期110-114,共5页Journal of Agro-Environment Science

基　　金：黑龙江省科委资助项目(9503010209);天津农学院青年科学基金(200102)资助

摘　　要：采用生长速率法对35种化学药剂抑制水稻小球菌菌丝生长进行筛选,并对抑制菌丝生长效果较好的化学药剂作毒力测定。结果表明,扑海因、粉锈宁和特谱唑抑制菌丝生长效果最显著,其EC50值依次为特谱唑(15.25 mg.kg-1)>粉锈宁(5.68 mg.kg-1)>扑海因(0.22 mg.kg-1)。3种杀菌剂的毒力方程经检验差异均达到极显著,这说明任何一个毒力方程对小球菌核病的防治都可以提供理论指导。We have screened and tested 35 agrochemicals against Sclerotium oryzae Catt. by using the method of mycelium growth in our lab. The results indicated that iprodione, triadieion and dlnlconazde were capable of effectively inhibiting the mycelium growth of Sclerotium oryzae Catt.. Besides, it was discovered that the three fungicides were in an order with EC50 diniconazde = 15.25 mg · kg^-1, EC50 triadieion = 5.68 mg · kg^-1, EC50 iprodione = 0. 22 mg · kg^-1, respectively. All the three biological activity regression equation showed that there was a great difference after analysis of variance, revealing that any biological activity regression equation can guide to control the disease at the level.

关 键 词：水稻小球菌 药剂筛选 毒力测定 

分 类 号：S482.2[农业科学—农药学]