枯草杆菌B_1菌株对大白菜软腐病的生防作用  

BIOCONTROL OF CHINESE CABBAGE BY BACILLUS SUBTILIS COHN(B_1)

作　　者：王金生[1] 田端华 方中达[1] 张宏声 张安全 刘荆[4] 

机构地区：[1]南京农业大学植物病理教研组 [2]南京市蔬菜科技中心 [3]南京市摄山乡农技站 [4]淮阴地区农科所

出　　处：《南京农业大学学报》1989年第4期59-62,共4页Journal of Nanjing Agricultural University

基　　金：农业部下达七五攻关课题

摘　　要：从80多个枯草杆菌(Bacillus subtilis Ch)拮抗菌株中选出3个菌株进行田间试验,结果B_1菌株的防病效果最好。根据1985～1987年的田间试验,B_1菌株的防病效果可达64％～76％,大白菜贮藏4个月后的防病效果达80％。温室和大田试验表明,浸种处理的大白菜在苗期有显著促进生长作用,收获期产量比对照提高14.9％。跟踪检测结果,B_1菌株可以在大白菜幼根上定殖,减少软腐细菌从根系侵入,厌氧处理后能延缓发病。Three isolates were selected from 80 antagonistic bacteria for field trials. The results showed that B_1 (Bacillus subtilis) was the best of them on control of soft-rot of Chinese cabbage. Based on field tests from 1985～1987 control effects ranged from 64%～76% and after four months of cold storage might reach 80%. Greenhouse and field experiments showed the seedling growth by seed bacteriozation was significantly promoted as compared with the control. By trace plating B_1 could colonize the rhizosphere of seedlings of Chinese cabbage, suppress the pathogenic bacteria invading roots and delay soft rot occurence in plants by anaerobic treatment.

关 键 词：大白菜 软腐病 生物防治 枯草杆菌 

分 类 号：S436.341.1[农业科学—农业昆虫与害虫防治]