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时间:2018-04-15
《乙烯利刺激对橡胶树热研7_33_97幼龄开割树的乳胶生理影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第43卷第3期西部林业科学Vol.43No.32014年6月JournalofWestChinaForestryScienceJun.2014乙烯利刺激对橡胶树热研7-33-97幼龄开割树的乳胶生理影响*1111211魏芳,吴明,罗世巧,杨文凤,郑乾坤,仇键,校现周(1.中国热带农业科学院橡胶研究所农业部橡胶树生物学与遗传资源利用重点实验室,海南儋州571737;2.海南大学农学院,海南海口570288)摘要:通过对未开割胶树进行2%乙烯利刺激,在刺激后的6h、12h、24h、48h、72h和CK(未用乙烯利刺激)割胶,分析对橡胶树无性系热研7-33-97
2、幼龄开割树的乳胶生理影响。结果表明,乙烯利刺激稀释胶乳后72h发生强烈稀释,蔗糖在刺激后48h开始大量转运进入乳管;乙烯利刺激不同时间后割胶,与对照CK相比:随着割胶刀次递增,干胶含量递减,蔗糖、无机磷(除刺激24h和72h外)和硫醇含量在第2刀出现1个最低点,随后逐步升高。差异显著性分析表明,刺激72h后割胶与短时间刺激干胶含量差异显著,长时间刺激(24h)后割胶与短时间刺激(6~12h)割胶蔗糖含量差异显著,72h内刺激割胶无机磷含量差异不显著。故涂乙烯利刺激72h后割胶较合适。关键词:乙烯利;橡胶树;割胶;胶乳生理中图分类号:S794.1文献标识码:
3、A文章编号:1672-8246(2014)03-0093-06AnalysisofPhysiologicalCharacteristicsEffectedbyEthrelStimulationonCloneReyan7-33-97ofYoungTappedRubberTree1111211WEIFang,WUMing,LUOShi-qiao,YANGWen-feng,ZHENGQian-kun,QIUJian,XIAOXian-zhou(1.KeyLaboratoryofBiologyandGeneticResourcesofRubberTree,Mini
4、stryofAgriculture,RubberResearchInstitute,ChineseAcademyofTropicalAgriculturalSciences,DanzhouHainan571737,P.R.China;2.CollegeofAgriculture,HainanUniversity,HaikouHainan570288,P.R.China)Abstract:Toinvestigatetherubbertreeclonereyan7-33-97latexphysiologyeffectedbyethrelstimulation,
5、thisstudyfocusedonuntappedrubbertreetreatedby2%ethrel.Theresultsshowedthatethrelstimulationdilutedla-texeffectedintensivelyafter72handabundantsucroseweretransformedintolaticifercellsafter48hofstimula-tion.TheresultofCKtappingexperimentshowedthatdryrubbercontenthadaprogressivedecre
6、asefollowedbycontinuoustappingcuts,andsucrose,inorganicphosphorus(except24hand72h)andthiolcontentwasatthelowestpointinthesecondcut,thengraduallyincreased.Thesignificantdifferenceanalysisshowedlatexdryrub-bercontentafter72hstimulationhadsignificantdifferencewithshort-termstimulatio
7、n,sucrosecontentafter24hethreltreatmenthadsignificantdifferencewiththoseof6~12hstimulation,theprocessingofPicontentwasnotsignificantdifferencewithin72hstimulation.Therefor,afterethrelstimulation,thesuitabletappingtimeis72hlater.Keywords:Ethrel;Heveabrasiliensis;tappingrubbertree;l
8、atexphysiology*收稿日期:2014-02-15基金项
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