4种野生花灌木硬枝的扦插

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1、万方数据第32卷第6期东北林业大学学报V01．32No．6兰Q丝芏!!旦』Q型曼塑垒垦Q!盟Q垦!旦曼垒墨!兰Q垦垦璺!墨兰旦盟!!垦竖!!!!堕!!：兰QQ垒4种野生花灌木硬枝的扦插1’徐兴友孟宪东郭学民王艳霞尹伟伦王华芳(河北科技师范学院，昌黎，066600)(福建农林大学林学院)(北京林业大学生命科学与技术学院)摘要以燕山东段的4种野生花灌木三裂绣线菊(SpiraeatrilobataL．)、卫矛(EuonymusalatusThunb．)、毛樱桃(PrunustomentosaThunb．)、叶底珠(Securinegasuffrut

2、icosaRehd．)为材料，进行了硬枝扦插研究。结果表明，不同花灌木的最适外源激素和含量各不相同，其中50mg／kg和100mg／kg的ABT生根粉对三裂绣线菊的生根率影响最显著，IBA对生根数和根长有极显著的促进作用；100mg／kg的ABT和NAA可有效提高卫矛的生根率，不同含量的IBA均可显著增加插穗不定根根数；50mg／kg的IBA处理毛樱桃插穗效果最好，其次为50mg／kg的ABT，对生根率、根长和根数均有显著的促进作用，NAA最差，且NAA对插穗生根甚至起阻碍作用；而叶底珠以50mg／kg的NAA乖ABT处理效果较好，对其生根率

3、、根长和根数的促进作用都较明显。关键词燕山东段；野生花灌木；硬枝扦插；外源激素分类号$604HardwoodCuttingofFourWildShrubs／XuXingyou，MengXiandong，GnoXuemin(HebeiNormalUniversityofSci．enceandTechnology，Changli066600，P．R．China)；WangYanxia(FujtanAgricultureandForestryUniversity)；YinWeilun，WangHuafang(BeijingForestryUnive

4、rsity)／／JournalofNortheastForestryUniversity．一2004，32(6)．一60—63FourkindsofwildshrubsgrownontheeastpartofYanshanMountainwasusedasexperimentalmaterials，includingSpiraeatrilobataL．．EuonymusalatusThunb．，PrunustomentosaThunb．andSecurinegasuffiuticosaRehd．．Theeffectsofvarietiesan

5、dconcentrationsofexogenoushormoneontherootingofhardwoodcuttingswereinvestigated．ThebottomofcuttingswastreatedwithABT。NAAandIBAatconcentrationsof50。100and200mS／kg，respectivelybeforethecuttingswereinserted．Therootingpercentageandthelengthandnumberofadventitiousrootswerestudie

6、d．TheresultindicatesthatABThasaremarkableeffectonrootingpercentageofSpiraeatrilobatacuttings，espeeiallythetreatmentsforABT50mg／kgandloom∥kg．butIBAhascloserelationshipswithrootinglengthandnumber．ABTandNAAwiththeconcentra．1ionof100mg／kgcaneffectivelypromotetherootingpercentag

7、eofEuonymusalatuscuttings，anddifferentconcentrationsofIBAallhavesignificantstimulativeeffeetsonthenumberofadventitiousroots．ThebestrootingtreatmentforPrunll镕tomento．saisIBA50mg／kg．thenextisABT50mg／kg，andtheworstisNAA．TheABTandNAAwiththeconcentrationof50mg／kghavemarkedeffect

8、sontherootingpercentageaswellasthelengthandnumberofrootsforSecurinegasuffruticosa．