植物诱抗剂-IR-18对向日葵列当的抑制效果及应用  

Control efficacy of plant elicitor IR-18 against Orobanche cumana and its application techniques

作　　者：云晓鹏[1] 杜磊[1] 白全江[1] 孙涛 田晓燕[1] 苏雅杰 张光[3] YUN Xiaopeng;DU Lei;BAI Quanjiang;SUN Tao;TIAN Xiaoyan;SU Yajie;ZHANG Guang(Plant Protection Institute,Inner Mongolia Academy of Agricultural&Animal Husbandry Sciences,Hohhot 010031,China;Gannan Sunflower Research Institute,Gannan 162100,China;Urad Front Banner Agricultural Technology Extension Center,Ula Mountain 014400,China)

机构地区：[1]内蒙古农牧业科学院植保所,内蒙古呼和浩特010031 [2]甘南县向日葵研究所,黑龙江甘南162100 [3]乌拉特前旗农业技术推广中心,内蒙古乌拉山014400

出　　处：《北方农业学报》2018年第6期77-82,共6页Journal of Northern Agriculture

基　　金：国家特色油料产业技术体系项目(CARS-14-1-21);内蒙古自治区科技计划项目;内蒙古自治区农牧业科技创新基金项目(2017CXJJN14)

摘　　要：针对生产中JK601、SH363等商品性好的主栽食用向日葵品种,没有理想的配套防控向日葵列当措施。2017年对引进的植物诱抗剂-IR-18进行了田间施药技术研究。结果表明:该药剂对向日葵列当具有明显的控制效果,但不同品种间防效差异较大,其中具有一定抗性的品种JK601优于易感品种SH363;而且防效与药剂浓度呈正比,400倍液处理防效优于600倍液和800倍液处理;田间最佳施药期应选择在6～10叶期,400倍液施药1次处理,600倍液和800倍液需要施药2～3次,在第一次施药后32 d的防效均可达100%。Some widely cultivated confectionery sunflower varieties including JK601 and SH363,which have good commercial characters,lack efficient supplementary measures against Orobanche cumana.In 2017,a kind of plant elicitor(IR18)was introduced and its field application techniques were studied.Results showed that the agent had good control efficacy on Orobanche cumana,but there were great differences among varieties.It performs better on JK601,which has certain resistance to Orobanche cumana,than sensitive SH363;and the control efficacy was proportional to the concentration of the elicitor solution.The 400-fold dilution of IR18 had better efficacy than 600-fold and 800-fold dilutions,while the best application time was the 6~10 leaf stage of sunflower.It can be applied one time at 400-fold dilution or 2~3 times at 600-fold dilution and 800-fold dilution,and the control efficacy through 32 days after the first application can be maintained at 100%.

关 键 词：向日葵 列当 植物诱抗剂-IR-18 防控效果 

分 类 号：S451[农业科学—植物保护]