预览加载中，请您耐心等待几秒...

NO对非洲菊切花衰老的影响及作用机理的研究.docx

预览
1/3
2/3
3/3

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

NO对非洲菊切花衰老的影响及作用机理的研究 Title:TheImpactandMechanismofAginginCutChrysanthemumFlowersinAfrica Abstract: TheaimofthisstudyistoinvestigatetheeffectsofagingoncutchrysanthemumflowersinAfricaandexploretheunderlyingmechanisms.Cutchrysanthemumflowersaresignificantinthehorticulturalindustryasdecorativeandornamentalplants.However,theyareknowntoundergoaging,leadingtoreducedqualityandvaselife.Understandingthefactorsinfluencingchrysanthemumfloweragingiscrucialfordevelopingeffectivestrategiestoprolongtheirshelflifeandmaintaintheiraestheticappeal. 1.Introduction 1.1Background Chrysanthemumsarethesecondmostimportantcutflowersglobally,withAfricabeingamajorcontributortotheirproduction.However,thepost-harvestlifeofcutchrysanthemumflowersisoftencompromisedduetoagingprocessesassociatedwithsenescence.Thispaperaimstoreviewtheimpactofagingonthesecutflowersandthemechanismsinvolved. 2.EffectsofAgingonCutChrysanthemumFlowers 2.1PhysicalChanges Agingisaccompaniedbyvariousphysicalchangesincutchrysanthemumflowers,includingwilting,lossofturgidity,andpetaldiscoloration.Thesechangescontributetoareducedvaselifeandoverallqualitydecline. 2.2BiochemicalChanges Duringaging,cutchrysanthemumflowersexperiencealterationsinvariousbiochemicalprocesses,includingchangesinrespirationrate,ethyleneproduction,andreactiveoxygenspecies(ROS)accumulation.Thesechangesoftenleadtoaccelerateddegradationofpigments,proteins,andcellmembranes. 3.FactorsInfluencingAgingProcessesinCutChrysanthemumFlowers 3.1HormonalRegulation Planthormones,suchasethylene,cytokinins,andauxins,playcrucialrolesinregulatingsenescenceprocessesincutflowers.Understandingthehormonalregulationofagingcanprovideinsightsintocontrollinganddelayingthesenescenceofchrysanthemumflowers. 3.2EnvironmentalFactors Environmentalfactors,includingtemperature,light,humidity,andwaterquality,haveasignificantimpactontherateofagingincutchrysanthemumflowers.Hightemperatures,excessivelightexposure,andwaterstresscanaccelerateagingprocesses. 4.MechanismsofChrysanthemumFlowerAging