解淀粉芽胞杆菌Jt84防治水稻稻曲病田间应用技术研究  

Study on the Field Application Technology of Bacillus amyloliquefaciens Jt84 against Rice False Smut

作　　者：张荣胜[1] 于俊杰[1] 齐中强[1] 张浩[1] 杜艳[1] 俞咪娜[1] 宋天巧[1] 曹慧娟 潘夏艳 雍明丽 陈志谊[1] 刘永锋[1] ZHANG Rongsheng;YU Junjie;QI Zhongqiang;ZHANG Hao;DU Yan;YU Mina;SONG Tianqiao;CAO Huijuan;PAN Xiayan;YONG Mingli;CHEN Zhiyi;LIU Yongfeng(Institute of Plant Protection,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China)

机构地区：[1]江苏省农业科学院植物保护研究所,南京210014

出　　处：《中国生物防治学报》2021年第3期525-530,共6页Chinese Journal of Biological Control

基　　金：国家重点研发计划(2017YFE0104900);江苏省自主创新资金项目[CX(17)3021];江苏省自然科学基金(BE2019377)。

摘　　要：为了明确解淀粉芽胞杆菌Jt84防治水稻稻曲病田间应用技术,本文初步研究生防菌Jt84定殖规律以及不同喷施时期对水稻稻曲病的防效。结果显示:生防菌Jt84在水稻叶表能够有效定殖,7~16d时,叶表定殖菌量维持在10^(4) cfu/cm^(2),30 d仍可在水稻叶表检测到生防菌Jt84;生防菌Jt84防治水稻稻曲病的最佳防治时期为水稻叶枕平时期(旗叶与倒二叶的叶枕在同一处),田间试验表明在此时期防治,当解淀粉芽胞杆菌Jt84使用量为200~400 mL/667 m^(2)时,对水稻稻曲病防治效果为77.8%~89.5%。The purpose of the paper is to clarify the field application technology of Bacillus amyloliquefaciens Jt84 to control rice false smut.With researching the colonization of Jt84 strain and the control effect of different spraying periods on rice false smut,the results showed that B.amyloliquefaciens Jt84 could effectively colonize on the rice leaf surface.We also observed that Jt84 strain maintaining the amount of colonizing bacteria on the leaf surface at 10^(4) cfu per cm^(2) at 7~16 d,and it could detect after 30 days.The best biocontrol period for rice false smut was the period of flag leaf and second leaf pillow at the same place,also shown in field trials.The control effect on rice false smut was 77.8%~89.5%when Bacillus amyloliquefaciens Jt84 used at 200~400 mL per 667 m^(2).

关 键 词：解淀粉芽胞杆菌 水稻稻曲病 防治时期 生物防治技术 

分 类 号：S476[农业科学—农业昆虫与害虫防治]