摘要
[目的]探讨菊苣根水浸提液对牧草种子萌发及幼苗生长的影响。[方法]采用不同浓度(0、12.5和50.0 g/L)的菊苣(Cichoriumintybus L.)根水浸提液,处理高羊茅(Festuca arundinacea L.)、白三叶(Trifolium repens L.)和紫花苜蓿(Medicago sativa L.)等3种牧草种子。[结果]菊苣根水浸提液对3种牧草种子的种子发芽率、发芽指数、活力指数、幼苗根长及芽长生长主要表现为抑制作用,且随水浸提液浓度增加而抑制效应增强;同浓度下,高羊茅种子萌发受到的抑制效应最强。不同植物幼根和幼茎对水浸提液的敏感性不同;高羊茅的幼芽和幼根对菊苣根水浸提液极为敏感,在50.0 g/L浓度下,高羊茅的幼芽和幼根抑制率为39.96%和38.83%。[结论]对开发植物源除草剂对杂草的防治和菊苣综合治理的研究具有一定的参考价值。
[Objective] The effect of the aqueous extracted from Cichorium intybus L.root on seed germination and seedling growth was investigated.[Method] The different concentrations（0,12.5 and 50.0 g/L） of aqueous extract were adopted to process the seeds of Festuca arundinacea L.,Trifolium repens L.and Medicago sativa L.[Results] The results showed that the aqueous extract of chicory root had certain influence on herb seed germination and seedling growth,namely,the inhibition of germination index,vigor index,seedling root and bud growth was strengthened with an increment of aqueous extract concentration and under the condition of same extract concentration,the seed germination of festuca would suffer the strongest inhibition effect.The different plant seedling root and stem had different sensitivity to aqueous extract and seedling root and stem of festuca were extraordinary sensitive to aqueous extract,which inhibition rate reached 39.96% and 38.83% in 50.0g/L of the extract concentration.[Conclusion] The reference value for the development of plant type herbicide in comprehensive weed-controlling was provided.
出处
《安徽农业科学》
CAS
北大核心
2011年第32期19852-19854,共3页
Journal of Anhui Agricultural Sciences
基金
国家科技支撑项目(2011BAD17B05)
科技部国际合作项目(2008DFA31650)
关键词
水浸提液
种子活力
抑制效应
菊苣
Aqueous extract
Seed vigor
Inhibition effect
Chicory
作者简介
解宝（1985-），男，山西山阴人，硕士研究生，研究方向：牧草植物资源开发利用，E-mail：xiebaonihao@163．com。
通讯作者，副教授，博士，从事植物天然产物开发利用的教学和研究．E-mail：wangquanzhen191@163．com。
