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1、林業(yè)科學研究2010,23(3):467～471ForestResearch文章編號:1001-1498(2010)03-0467-05不同品種油茶嫁接苗根系生長動態(tài)研究1,21*2234康樂,楊水平,姚小華,王開良,洪友君,王毅(1.西南大學資源環(huán)境學院,重慶400716;2.中國林業(yè)科學研究院亞熱帶林業(yè)研究所,國家林業(yè)局亞熱帶林木培育重點開放性實驗室,浙江富陽311400;3.浙江省金華市東方紅林場,浙江金華321025;4.浙江省青田縣林業(yè)局,浙江青田323900)關(guān)鍵詞:油茶;嫁接苗;根系;生長量;品種中圖分類號:S794.4文獻標識碼: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)為山茶科(Theace-其主要產(chǎn)品茶油是一種高級食用油,不飽和脂肪酸ae)山茶屬(CamelliaL.)常綠灌木或小喬木,是我國含量高達90%以上;同時,茶油是一種重要的生物南方重要的經(jīng)濟林木。油茶與油棕(Elaeisguineen-質(zhì)原料,在
8、工業(yè)、醫(yī)藥、化妝業(yè)等都有廣泛的利[2-3]sisJacq.)、油橄欖(Oleaeuropaea
