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1、1884-1890草業(yè)科學31卷10期10/2014PRATACULTURALSCIENCEVol.31,No.10DOI:10.11829j.issn.1001-0629.2013-0628常見園林植物化感作用的初步評價朱強,鄒夢輝,安黎,田曾元,郭予琦(鄭州大學生命科學學院,河南鄭州450001)摘要:以濾紙為基質(zhì)初步評價了44種園林植物水浸液及最強抑制植物薄荷(Menthahaplocalyx)揮發(fā)油對蘿卜(Raphanussativus)的化感作用,以土壤為基質(zhì)驗證了白玉蘭(Magnoliadenudata)的化感作用,同時分析比較了化感作用離體測試的幾種常用方法。結果表明,1)薄荷
2、、白玉蘭、楓楊(Pterocarlastenoptera)的化感抑制作用最強,綜合效應(SE)分別為-0.72、-0.65、-0.38;海桐(Pittosporumtobira)、國槐(Sophorajaponical)、銀杏(Ginkgobi--1loba)的促進作用最強,SE值分別為0.47、0.41、0.26。2)薄荷揮發(fā)油具有極高的化感作用,在0.5mg·mL濃度下,顯著抑制蘿卜種子的萌發(fā)(P<0.05),極顯著地抑制根和苗的生長(P<0.01),對苗高的抑制作用強于根長。3)盆栽試驗證實白玉蘭確實具有較強的化感作用。4)不同測試方法間存在較大差異,且差異程度還與受體植物的選擇有關。研
3、究結果為系統(tǒng)研究園林植物的化感作用奠定了基礎。關鍵詞:園林植物;蘿卜;化感作用;離體測試*中圖分類號:Q948文獻標識碼:A文章編號:1001-0629(2014)10-1884-07PreliminaryevaluationoftheallelopathyofcommongardenplantsZHUQiang,ZOUMeng-hui,ANLi,TIANZeng-yuan,GUOYu-qi(CollegeofLifeScience,ZhengzhouUniversity,Zhengzhou450001,China)Abstract:Theallelopathyofaqueousextract
4、sof44differentgardenplantsandvolatileoilofMenthahaplocalyxwhichwasthestrongestallelopathicplantonradish(Raphanussativus)werestudiedinPetridishesinlaboratory.AndtheallelopathyofMagnoliadenudatawasvalidatedthroughpotexperiment.Meanwhile,theeffectsofseveralinvitroallelopathictestingmethodswerecomparedi
5、nthepresentstudy.M.haplocalyx,M.denudataandPtero-carlastenopterahadthestrongestallelopathicinhibitoryeffects,andthesyntheticeffect(SE)were-0.72,-0.65and-0.38,respectively.Pittosporumtobira,SophorajaponicalandGinkgobilobahadthestrongestallelopath--1icpromotingeffects,andtheSEwere0.47,0.41and0.26,resp
6、ectively.Withthe0.5mg·mLconcentration,thevolatileoilofM.haplocalyxhadsignificantinhibitoryeffects(P<0.05)onseedgerminationandseedlinggrowthandrootgrowth(P<0.01)ofR.sativus.Thedifferenttestingmethodshadsignificantlydifferenteffectsonallelopathywhichwasrelatedtothetestplant.Thisstudywillprovidesomeref
7、erenceforsystematicstudyontheal-lelopathyofgardenplants.Keywords:gardenplants;Raphanussativus;allelopathy;invitrotestCorrespondingauthor:GUOYu-qiE-mail:guoyuqi@zzu.edu.cn*收稿日期:2013-11-07接受日期:2014-09-0