几种长残效除草剂残留导致甜菜药害的早期诊断  

Early Diagnosis of Toxicity to Sugarbeet by Several Long Residual Herbicides in Soil

作　　者：李彦丽[1,2,3] 马亚怀[1,2,3] 柏章才[1,2,3] 

机构地区：[1]黑龙江省普通高等学校甜菜遗传育种重点实验室/黑龙江大学农作物研究院,哈尔滨150080 [2]中国农业科学院甜菜研究所,哈尔滨150080 [3]中国农业科学院北方糖料作物资源与利用重点开放实验室,哈尔滨150080

出　　处：《中国糖料》2015年第6期42-43,46,共3页Sugar Crops of China

摘　　要：为了进行长残效除草剂残留导致甜菜药害的早期诊断,我们采用盆栽模拟残留的方法,对豆旗(5%咪唑乙烟酸,25%异噁草松)、25%氟磺胺草醚、阔霸(20%氯嘧磺隆可湿性粉剂)、异丙草·莠(42%异丙草胺·莠去津悬浮剂)4种在土壤中持效期长、残留时间久的除草剂残留对甜菜出苗及苗期生长的影响进行了调查与记载。结果表明:甜菜出苗缓慢、出苗率低、幼苗生长缓慢或停滞、主根变褐是4种长残效除草剂残留所致甜菜药害的共同症状,可作为甜菜药害早期诊断的依据。以25%氟磺胺草醚和阔霸对甜菜出苗影响较大,甜菜出苗率最低。The sugarbeet pot culture test of herbicide residual using Douqi （5% imazethapyr ＋ 25% clomazone）, 25% fomesafen, 20% ehlorimuron-ethyl and 42% propisochlor ＋ atrazine in soil was conducted, to early diagnose toxicity to sugarbeet seedling inducedby residual herbicides. Sugarbeet appeared slow emerge and with low germination rate, seedlings slowed growth with brown main root, even growth retardation under 4 herbicide treatments. These symptoms could be used for early diagnosis of beet injured by herbicide residual in soil.

关 键 词：甜菜 除草剂 残留 药害 早期诊断 

分 类 号：S435.663[农业科学—农业昆虫与害虫防治]