CAJ | 학술논문

比较了温室条件下和同期开展的4个田间试验条件下炔草酯、五氟磺草胺、精喹禾灵、氟磺胺草醚和二甲戊乐灵对相同靶标杂草的鲜重防效。结果表明：在温室试验条件下，低剂量处理的炔草酯、五氟磺草胺、精喹禾灵和二甲戊乐灵的杂草鲜重防效显著高于田间防效，高剂量处理的田间杂草鲜重防效与温室试验接近或相当；除氟磺胺草醚的部分试验点外，各除草剂田间试验点对靶标杂草鲜重防效的ED50、ED90值均高于温室试验；炔草酯、五氟磺草胺、精喹禾灵、氟磺胺草醚、二甲戊乐灵田间试验ED90/温室试验ED90的范围分别为3．2～6．9、16．2～103．9、1．6～3．1、0．8～3．1、1．8～3．4。各除草剂的杂草防效在田间试验点与温室试验间存在差异，可能受到杂草自身对药剂的敏感性差异、气候环境及人为因素等多方面影响。综合试验结果，在进行除草剂温室及田间试验时，应对杂草防效的差异进行多方面综合分析；试验结果对新化合物的生物检测也具有参考意义。
비교료온실조건하화동기개전적4개전간시험조건하결초지、오불광초알、정규화령、불광알초미화이갑무악령대상동파표잡초적선중방효。결과표명：재온실시험조건하，저제량처리적결초지、오불광초알、정규화령화이갑무악령적잡초선중방효현저고우전간방효，고제량처리적전간잡초선중방효여온실시험접근혹상당；제불광알초미적부분시험점외，각제초제전간시험점대파표잡초선중방효적ED50、ED90치균고우온실시험；결초지、오불광초알、정규화령、불광알초미、이갑무악령전간시험ED90/온실시험ED90적범위분별위3．2～6．9、16．2～103．9、1．6～3．1、0．8～3．1、1．8～3．4。각제초제적잡초방효재전간시험점여온실시험간존재차이，가능수도잡초자신대약제적민감성차이、기후배경급인위인소등다방면영향。종합시험결과，재진행제초제온실급전간시험시，응대잡초방효적차이진행다방면종합분석；시험결과대신화합물적생물검측야구유삼고의의。
Efficacy of clodinafop -propargyl,penoxsulam,quizalofop -p-ethyl,fomesafen and pendimethalin to control the same target weeds was simultaneously determined in the greenhouse and in four field experiments .Level of weed con-trol based on fresh weight reduction achieved with low doses of clodinafop -propargyl,penoxsulam,quizalofop-p-ethyl and pendimethalin in the greenhouse was substantially higher than in the field ,but at high doses the responses were nearly identical under both conditions .Only fomesafen performed slightly differently ,ED50 and ED90 values for the other four her-bicides were higher at the field than at the greenhouse .The ED90(field)/ED90(greenhouse)ratios for clodinafop -prop-argyl,penoxsulam,quizalofop-p-ethyl,fomesafen and pendimethalin were 3.2~6.9,16.2~103.9,1.6~3.1,0.8~3.1 and 1.8~3.4,respectively.The differing weed control effects of the herbicides observed in field and greenhouse experiments are probably related to sensibility differences of weeds as well as climatic and anthropogenic factors .Thus in conducting greenhouse and field experiments ,comprehensively analyses of variability of weed control effects must be ad-dressed,particularly for the bioassay testing of novel herbicides under development .