CAJ | 학술논문

为开发无公害新型植物源除草剂，采用培养皿滤纸法，以高羊茅、白车轴草和紫苜蓿3种草坪植物为受体，依据种子发芽率、发芽指数、幼苗苗高和根长等指标的变化，结合化感效应指数的综合效应值，分析恶性杂草泽漆茎叶水浸提液的化感活性。结果表明：泽漆茎叶水浸提液对供试植物均有一定影响。随着浸提液浓度的增大，3种草坪植物种子的发芽率、发芽指数、活力指数及幼苗根长均呈逐渐下降趋势，相应化感效应指数显示，各指标都受到明显的抑制作用；幼苗苗高均呈先升后降的趋势，相应化感效应指数证明其受到低促高抑的化感效应。综合效应（SE 值）显示，草坪植物种类不同，对泽漆茎叶浸提液的敏感程度不同，其中白车轴草最敏感，始终受到化感抑制作用，高羊茅和紫苜蓿在浸提液浓度小于6.25%时均表现出化感促进作用。
위개발무공해신형식물원제초제，채용배양명려지법，이고양모、백차축초화자목숙3충초평식물위수체，의거충자발아솔、발아지수、유묘묘고화근장등지표적변화，결합화감효응지수적종합효응치，분석악성잡초택칠경협수침제액적화감활성。결과표명：택칠경협수침제액대공시식물균유일정영향。수착침제액농도적증대，3충초평식물충자적발아솔、발아지수、활력지수급유묘근장균정축점하강추세，상응화감효응지수현시，각지표도수도명현적억제작용；유묘묘고균정선승후강적추세，상응화감효응지수증명기수도저촉고억적화감효응。종합효응（SE 치）현시，초평식물충류불동，대택칠경협침제액적민감정도불동，기중백차축초최민감，시종수도화감억제작용，고양모화자목숙재침제액농도소우6.25%시균표현출화감촉진작용。
The germination rate,germination index,seedling height and root length of F. elata,Trifolium repens and Medicago sativa seeds cultured in filter paper method with water extract from stem and leaf of E.helioscopia were determined to study the comprehensive allelopathic effects of water extract from stem and leaf of E. helioscopia and to develop new plant herbicides with pollution-free. The results showed that water extract from E.helioscopia has the certain effect on tested lawn species. The germination rate,germination index,seedling height and root length of three lawn plant species show a gradual decline trend with increase of water extract compared with CK. The index of relevant allelopathic effect indicates that different indexes are inhibited obviously. Seedling height shows a first rising and then decline trend. The integrated effect( SE value)showed that different lawn species has different sensitive degree to water extract of E. helioscopia,of which,Trifolium repens is most sensitive to water extract of E. helioscopia. The water extract from E. helioscopia with < 6. 25% concentration promotes the allelopathic effect on F. elata and M. sativa.