楸树嫩枝扦插繁育试验.docVIP

楸树嫩枝扦插繁育试验 安徽农业科学,JournalofAnhuiA.Sci.2038,36(18):7635—7636,7901责任编辑理雪莲责任校对马君叶 楸树嫩枝扦插繁育试验 陈素传,汪小进,肖正东,孙权2,肖大军2 (1安徽省林业科学研究院,安徽合肥230031;2.安徽省合肥市正火果树研究所,安徽合肥230030) 摘要[目的]为促进楸树的开发与推广提供依据.[方法]利用激素种类,扦插基质,激素浓度,处理时间4个因素进行楸树嫩枝扦插育 苗试验,探讨影响楸树生根的主要因子.[结果]以珍珠岩作扦插基质生根最好,生根率达17.77%;ABT1号生根粉500me,/kg处理生根效 果较佳,生根率达l1.93%;处理时间以120vain为好,生根率达14.17%.扦插基质对生根的影响最大,其次是处理时间与激素浓度.3 种激素各浓度处理平均生根率由高到低依次是:IBAgt;ABT1号生根粉gt;NAA,随着浓度的增加,生根率降低.ABT1号生根粉,500kg IBA处理楸树插穗2h,生根率分别比对照增加82.6%,87.4%.f结论j用珍珠岩作扦插基质,500mg/kgABT1号生根粉处理2h,楸树嫩 枝扦插生根效果最好,生根率达3O.8%. 关键词楸树;嫩枝扦插;激素;基质;生根率 中图分类号$723.132.2文献标识码A文章编号0517—661l(20o8)l8—07635—02 PIReportonthePropagationExperimentof枷bungeibyrI,vCuttmg CHENSu-chuanetal(AnhuiAcademyofForestrySciences,Hei,Anhui230031) Abstract【ObjectiveJTheaimwastosupplyfoundationforpromotingtheexploitationandpopularizationof枷bungei.【MethodjF0I】ffactorssuch ashomlonekinds,cuttingmedium,hormoneconcn.andtreatmenttimewereusedtoconducttheseedling-raisingexperimentofC.bungeibytwigcutting soastodi~ussthemainfactors’affectingitsrooting.IResultjWithperliteascuttingmedium,therootingeffectwasbest,withrootingrateof17.77%. Therootingeffectoftreatingby500mg/kgABT1rootingpowderwasbetter.withrootingrateofl1.93%.111etreatmenttimeof120minwasgood.with rootingrateof14.17%.111eeffectofcuttingmediumonrootingwasbiggestandthesecondaryweretreatmenttimeandhormoneconen.Theaverageroot— ingmtesoftreatmentsof3hormonesatvarioustenon.inorderwereIBAgt;ABT1rootingpowdergt;NAAandtherootingratereducedalongwiththein— crementofconch.ComparexlwithCK,therootingratesofC.bungeicuttingstreatedbyABT1rootingpowderand500mg/kgIBAfor2hwereincreased 82.6%and87.4%resp.【Conclusion]Withperliteascuttingn~tium,therootingeffectoftreatingtenderC.bungeicuttingby500me/kgABT1root— ingpowderfor2hwasbest.withrootingrateof30.8%. KeywordsCbungei;Twigcutting;Horn~ne;Modium;Rootingrate 楸树(Cat面【lbtmgeiC.A.Mey)属紫葳科梓树属,是我国 珍贵的优质用材树种和名贵的园林观赏树种,也是安徽省重 要的优良乡土树种,主要分布于黄河流域和长江流域的安 徽,江苏,河南,山东,湖北等省….它是异花(或异株)授粉, 单株或同一无性系植株生长在一起,由于自花授粉的不亲和 性,往往开花不结实;但即使不同无性系混栽在一起