不同激素对吊钟花圈枝繁殖生根的影响

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中图分类号：S685.99 文献标志码：A 文章编号：2096-9902（2025）24-0036-04

Abstract：Tooptimizethepropagation technologysystemofEnkianthusquinqueflorusandimprovetheseedlingraising efficiency and seedling quality，this study used E ：quinqueflorus as the experimental material and employed three hormones， namely，ABT1，NAAandIBA，toinvestigatetheirefectsonrotgrowthandrelatedgrowthindicatorsduringthepropagation process of E quinqueflorusring branches.Theresearch resultsshowedthat：Intermsofcallusformation，thecallusformation rate of the control group reached 100% ，demonstrating the best effect. The calls formation rate in the ABT treatment group was （2 95% ，that in the IBA treatment group was 75% ，and that in the NAA treatment group was 0% . No callus formation was observed.In terms of rooting rate，the rooting rate of the control group was 90 % ，that of the ABT treatment group was 85% ， that of the IBA treatment group was 45% ，and that of the NAA treatment group was 0% .In terms of average root length，the averagerootlengthofthecontrolgroupwas8.28cm，demonstratingsuperiorrotquality.Theaveragerootlengthofth IBA treatment group was 8.43cm ，slightly higher than that of the control group.The average root length of the ABT treatment group was5.71cm.In termsofthesurvivalrateoftransplanting，thesurvivalrateof transplantinginthecontrolgroupwas6.67 % ， whichwashigherthanthatofothertreatmentgroups.Intermsofnewshotgrowth，thenewshootgrowthintheIBAtreatment group was 4.00cm ，slightly higher than3.54cmin thecontrol group.Thenewshoot growth inthe ABT treatment group was 1.89cm.Inconclusion，E.quinqueflorussilldemonstratedstrongnaturalotingandsedlingformationcapabilieswithout exogenoushormoneintervention，indicatingthatexogenoushormonetreatmentisnotanecessaryconditionforitsringbranch propagation.Theresearchresultsprovideanimportantbasisfortheoptimizationofasexualpropagationtechniquesof E quinqueflorus .

Keywords：hormone; circular branch propagation;rooting rate;Enkianthus quinqueflorus;callus formation rate

吊钟花（Enkianthusquinqueflorus）作为杜鹃花科（Ericaceae）吊钟花属（Enkianthus）的常绿灌木或小乔未，以其优美的花型和较高的观赏价值在园林绿化中占据重要地位。（剩余5338字）