马居奎 张成玲 杨冬静 唐伟 陈晶伟 谢逸萍 孙厚俊

摘要：为明确乙草胺药害对甘薯生长发育的影响及缓解药剂对乙草胺药害的缓解效应，以烟薯25为供试作物，研究乙草胺对甘薯的药害情况以及0.136%赤·吲乙·芸薹可湿性粉剂、安法戈水剂、解害灵水剂和植力源粉剂4种不同缓解药剂对乙草胺药害的缓解作用。结果表明，乙草胺对甘薯蔓长、叶绿素相对含量、长势、产量及商品率等性状均有抑制作用，药害发生后喷施缓解药剂对乙草胺药害有一定缓解作用。综合分析，解害灵水剂对甘薯乙草胺药害的缓解效应最好，较不使用缓解药剂的乙草胺对照增产19.89%，缓解效应为37.36%，将有助于建立甘薯田除草剂药害的有效缓解措施。

关键词：乙草胺;甘薯;药害;缓解剂;缓解效果

中图分类号：S451.2  文献标志码：A  文章编号：1003-935X（2021）04-0067-06

Mitigation Effects of Different Alleviators on Phytotoxicity of

Acetochlor in Sweet Potato

MA Ju-kui，ZHANG Cheng-ling，YANG Dong-jing，Tang Wei，Chen Jing-wei，XIE Yi-ping，SUN Hou-jun

（Xuzhou Institute of Agricultural Sciences in Jiangsu Xuhuai Area/Key Laboratory of Biology and Genetic Improvement of Sweet Potato，Ministry of Agriculture and Rural Affairs，Xuzhou 221131，China）

Abstract：To determine the damaging effect of acetochlor on the growth and development of sweet potato and study its possible mitigation of phytotoxicity with alleviators of acetochlor，with Yanshu 25 sweet potato as trial crop，four different alleviators were evaluated，including 0.136% GA-IAA-BR，Ann Fargo，Jiehailing and Zhiliyuan. Acetochlor reduced vine length，relative chlorophyll content，growth，yield and other characters of sweet potato. Spraying alleviators after the occurrence of acetochlor damage can alleviate its phytotoxicity to a certain extent. According to a comprehensive analysis，Jieshailing had the highest mitigation effect on drug damage of sweet potato，whose mitigation effect was 37.36%. And the yield of sweet potato using Jieshailing was 19.89% higher than that of acetochlor control. It will be helpful to establish effective mitigation measures of herbicide damage in sweet potato field.

Key words：acetochlor; sweet potato; phytotoxicity; alleviators;mitigation effect

收稿日期：2021-10-25

基金項目：国家现代农业产业技术体系建设专项（编号：CARS-10-B17-2021）。

作者简介：马居奎（1991—），男，山东寿光人，硕士，研究实习员，主要从事甘薯病虫害研究。E-mail：majukui@126.com。

通信作者：孙厚俊（1980—），男，江苏丰县人，硕士，副研究员，主要从事甘薯病虫害研究。E-mail：sunhouj1980@163.com。

甘薯[Ipomoea batatas（L.）Lam.]俗称红薯、番薯、山芋、地瓜、红苕、白薯、白芋等，属于旋花科（Convolvulaceae）甘薯属（Ipomoea）一年生或多年生双子叶草本植物。甘薯具有产量高、种植范围广、营养丰富等特点，其独特的防癌保健作用也得到了公认。甘薯是世界上重要的粮食作物和食品加工及工业原料，可用于鲜食、淀粉加工、食品加工、菜用和观赏等[1]。我国是世界上最大的甘薯生产国，甘薯总产量在我国作物中位居第4，仅次于水稻、小麦和玉米。……