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1、林业科学研究2010,23(3):467～471ForestResearch文章编号:1001-1498(2010)03-0467-05不同品种油茶嫁接苗根系生长动态研究1,21*2234康乐,杨水平,姚小华,王开良,洪友君,王毅(1.西南大学资源环境学院,重庆400716;2.中国林业科学研究院亚热带林业研究所,国家林业局亚热带林木培育重点开放性实验室,浙江富阳311400;3.浙江省金华市东方红林场,浙江金华321025;4.浙江省青田县林业局,浙江青田323900)关键词:油茶;嫁接苗;根系;生长量;品种中图分类号:S794.4文献标识码:ASt
2、udyonRootGrowthDynamicCharacteristicsofGraftedSeedlingsofDifferentCamelliaoleiferaCultivars1,212234KANGLe,YANGShui-ping,YAOXiao-hua,WANGKai-liang,HONGYou-jun,WANGYi(1.CollegeofResourceandEnvironment,SouthwestChinaUniversity,Chongqing400716,China;2.ResearchInstituteofSubtropicalF
3、orestry,ChineseAcademyofForestry;KeyLaboratoryofSubtropicalTreeBreedingandCultivation,StateForestryAdministration,Fuyang311400,Zhejiang,China;3.DongfanghongForestFarmofJinhuaCity,Jinhua321025,Zhejiang,China;4.ForestryBureauofQingtianCounty,Qingtian323900,Zhejiang,China)Abstract:
4、ThegrowthdynamicsofrootsystemandabovegroundofthegraftedseedlingsofdifferentCamelliaoleiferacultivarsarestudiedbyskeletonmethodandrootscanning.Theresultsof8-months’observationongraftedseedlingsof5C.oleiferacultivarsshowedthat:thegrowthofaerialpartsandrootoftheC.oleiferaseedlingsw
5、erenotentirelyinsync,duringthetimeoflowtemperaturefromNovembertoFebruary,therootsystemstillinsustainedgrowththoughtheaerialpartsofthe5cultivarsgrewslowly.Remarkabledifferenceswereexistedinrootlength,rootsurfacearea,rootvolume,rootbiomassandotherindicatorsafter11-months’growth.Th
6、emeanvalueoftotallengthofroot-systemwasupto243.3cmand143.4cmfortheminimum,themeanvalueoftotalroot22surfaceareawasupto50.2cmand31.7cmfortheminimum,themeanvalueofrootvolumeoftheC.oleifera33seedlingswasupto0.843cmand0.578cmfortheminimumwhichlived11monthsaftergrafting.Alltherootleng
7、th,rootsurfacearea,rootvolumeofthe5cultivarshaveremarkabledifferences.Keywords:Camelliaoleifera;graftedseedlings;root;growth;cultivar油茶(CamelliaoleiferaAbel)为山茶科(Theace-其主要产品茶油是一种高级食用油,不饱和脂肪酸ae)山茶属(CamelliaL.)常绿灌木或小乔木,是我国含量高达90%以上;同时,茶油是一种重要的生物南方重要的经济林木。油茶与油棕(Elaeisguineen-质原料,在
8、工业、医药、化妆业等都有广泛的利[2-3]sisJacq.)、油橄榄(Oleaeuropaea
