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时间:2019-07-09
《多效唑,烯效唑和矮壮素对金钱树的矮化效应》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、园艺学报2010,37():5823–828ActaHorticulturaeSinica多效唑、烯效唑和矮壮素对金钱树的矮化效应1,22,*122姜英,彭彦,李志辉,吴志华,任世奇12(中南林业科技大学林学院,长沙410004;国家林业局桉树研究开发中心,广东湛江524022)摘要:采用植物生长延缓剂多效唑(PP333)、烯效唑(S3307)、矮壮素(CCC)喷施和灌根的方法对1~3年生盆栽金钱树的矮化效应进行研究。结果表明:PP333能明显使叶轴矮化,小叶间距缩短,叶柄基部变粗,复叶相对生长速率降低;S3307主要使叶柄基部变粗;CC
2、C药效表现不稳定,对部分指标表现出了促进作用。不同年龄金钱树适宜的PP333浓度变化大,S3307浓度变化小。喷施或灌根的矮化效果基本一致。药害在灌根处理上较同浓度喷叶处理更严重。综合考虑金钱树的生长及观赏价值,对不同-1年龄金钱树应用植物生长延缓剂调控株形效果好的组合有:1年生苗用300mg·LS3307喷叶处理;2年-1-1-1生苗用300mg·LS3307灌根处理或600mg·LPP333灌根处理;3年生苗用1200mg·LPP333喷叶处理。关键词:金钱树;植物生长延缓剂;矮化中图分类号:S687文献标识码:A文章编号:0513-
3、353X(2010)05-0823-06EffectsofPaclobutrazol,UniconazoleandChlorcholinchloridonDwarfingofZamioculcaszamiifolia1,22,*122JIANGYing,PENGYan,LIZhi-hui,WUZhi-hua,andRENShi-qi12(CentralSouthUniversityofForestryandTechnology,Changsha410004,China;ChinaEucalyptyResearchCentre,Zhanji
4、ang,Guangdong524022,China)Abstract:Theeffectsofthreeplantgrowthretardantspaclobutrazol(PP333),uniconazole(S3307)andchlorcholinchlorid(CCC)andtwomethodsofapplication(foliarsprayandrootdrench)werestudiedonZamioculcaszamiifoliaplantsofagesone,twoandthreeyears.PP333andS3307bo
5、thsignificantlyinhibitedgrowthandtheireffectsincreasedastheconcentrationappliedincreased.However,CCCdidnotsignificantlyinhibitgrowth.PP333reducedtheaveragetotallengthofleafstalks,minimizedthelengthpetiolules(i.e.thestalkbetweenleaflets);shortenedandthickenedthepetiolesand
6、alsoreducedthecomparativegrowthspeedofcompoundleaves.TheoptimalconcentrationofPP333atdifferentagesofZ.amiifoliavariedwithindividualplantbiomass.Incontrast,themaineffectsofS3307wereonshorteningandthickeningpetioles.Overall,thebestcontrolgrowthcontrolofone-year-oldZ.amiifol
7、iaplantswas-1-1obtainedwith300mg·LofS3307appliedasafoliarspray;oftwo-year-oldplantswith300mg·Lof-1-1S3307or600mg·LofPP333appliedasrootdrench;andofthree-year-oldplantswith1200mg·LofPP333appliedasfoliarspray.Keywords:Zamioculcaszamiifolia;plantgrowthretardant;dwarfing收稿日期:2
8、009–12–17;修回日期:2010–03–26基金项目:国家‘十一五’科技支撑项目(2006BAD07B08)﹡通信作者Authorforcorrespondence(E-mail:pen
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