新除草剂ZJ0166生物活性评价

Evaluation on Biological Activity of a New Herbicide ZJ0166

室内生测结果表明：浙江基地合成的新的除草活性化合物ZJ0166在40～150g／hm2剂量范围内对大多数禾本科杂草、阔叶杂草以及莎草具有较高的除草活性,且对油菜、棉花安全.高粱为ZJ0166的敏感靶标,高粱水培法测得ZJ0166的ED50值为0．17mg／L,播前土壤处理法测得ZJ0166的ED502．39g／a.吸收传导性研究结果表明：ZJ0166由根、芽、茎叶吸收并在植物体内双向传导,以根吸收为主.田间试验结果表明：ZJ0166在15～45g／hm2剂量下对油菜、小麦田恶性杂草看麦娘具有很好的防效,对阔叶杂草牛繁缕、雀舌草等具有一定的防治效果,且对油菜各种生长发育性状无不良影响,增产效果明显；45g／hm2剂量下对小麦具有明显的药害.

Results of bioassay in greenhouse showed that ZJ0166,a new compound which synthesized by zhejiang base,exhibited good herbicidal activity against most grass,some broadleaf weeds and sedge at dosage of 40－150g／hm2 in greenhouse,and kept safety to rape and cotton plant．As a sensitive target of ZJ0166,broomcorn method assayed its value of ED50 of 0．17mg／L．By the methods of the active carbon isoltion,spraying leaves and pouring roots,ZJ0166 with good translocation in plants was absorbed through root,bud and leaves．Field trials revealed that ZJ0166 could control worst weeds such as black－grass and chickweed at a low dosage of 15－45 g／hm2 in the rape and wheat fields and had less effects on the growth of rape,and improved the production,but it was phytotoxic against wheat at the dosage of 45g／hm2．