5种种衣剂对甘肃省小麦散黑穗病防治效果  

Control Effect of Five Seed-coating Fungicides against Ustilago tricici in Spring Wheat in Gansu Province

作　　者：贾秋珍[1] 范宏伟[2] 宋雄儒 张爱琴[2] 王永生 曹世勤[1] JIA Qiu-zhen;FAN Hong-wei;SONG Xiong-ru;ZHANG Ai-qin;WANG Yong-sheng;CAO Shi-qin(Institute of Plant Protection,Gansu Academy of Agricultural Sciences,Lanzhou 730070,China;Agricultural Technology Extension Center of Minle County,Zhangye 734500,Gansu,China;Gansu Huifeng Seed Industry Co.,Ltd.,Zhangye 734500,Gansu,China)

机构地区：[1]甘肃省农业科学院植物保护研究所,兰州730070 [2]民乐县农业技术推广中心,甘肃张掖734500 [3]甘肃汇丰种业有限责任公司,甘肃张掖734500

出　　处：《农药》2020年第4期306-307,312,共3页Agrochemicals

基　　金：国家重点研发计划资助项目(2018YFD0200406);甘肃省小麦产业技术体系资助项目(GARS-01-07,GARS-01-12)。

摘　　要：[目的]明确5种种子包衣剂对小麦散黑穗病的防治效果及对产量的影响。[方法]于2019年在民乐县,采用播种前种子包衣处理,进行田间试验。[结果]供试种子包衣剂对小麦出苗安全,对小麦散黑穗病的防效在90.15%~97.78%之间,增产幅度在9.39%~13.05%之间。其中27%苯醚·咯·噻虫FS和15%吡·福·烯唑醇FS防病、增产作用更为显著,防效、产量和增幅分别为97.78%、8340.74 kg/hm^2、13.05%和95.93%、8200.00 kg/hm^2、11.20%。[结论]建议生产中选用27%苯醚·咯·噻虫FS和15%吡·呋·烯唑醇FS,进行种子包衣防治小麦散黑穗病。[Aims]Wheat loose smut,caused by Ustilago tricici,is one of the most important diseases in spring wheat at Minle county,Gansu Province.This study aims to evaluate the control effects of five seed-coating fungicides against U.tricici in field.[Methods]The field trials were carried out by seed-coating at Wangshen villege,Minle county,in 2019.[Results]According to the emergence ratio,the tested seed-coating fungicides were safe on wheat in field.The control effects were 90.15-97.78%to wheat loose smut,and yield increased ratio were 9.39-13.05%.Compared with other seed-coating fungicides,difenoconazole·fludioxonil·thiamethoxam 27%FS and imidacloprid·thiram·diniconazole 15%FS had higher effect to disease control and production increase.Their effects to disease control were 97.78,95.93%,the yield were 8340.74,8200.00 kg/ha,and the increased ratio were 13.05,11.20,respectively.[Conclusions]Difenoconazole·fludioxonil·thiamethoxam 27%FS and imidacloprid·thiram·diniconazole 15%FS are recommended to control wheat loose smut of spring wheat in Minle,Gansu province.

关 键 词：小麦散黑穗病 种衣剂 防效 甘肃 

分 类 号：S482.2[农业科学—农药学]