麗江云杉天然種群針葉功能性狀及其隨海拔的變異.pdf

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1、林業(yè)科學(xué)研究2013，26(6)：781～785ForestResearch文章編號(hào)：1001—1498(2013)06-0781-05麗江云杉天然種群針葉功能性狀及其隨海拔的變異李青粉，王軍輝¨，賈子瑞，齊秀蘭，齊德新，侯曉柱，安三平(1．中國(guó)林業(yè)科學(xué)研究院林業(yè)研究所，林木遺傳育種國(guó)家重點(diǎn)實(shí)驗(yàn)室，北京100091；2．云南迪慶州香格里拉縣林業(yè)局云南香格里拉674400；3．甘肅小隴山林業(yè)科學(xué)研究所，甘肅天水741022)關(guān)鍵詞：麗江云杉；天然種群；針葉性狀；元素；海拔中圖分類號(hào)：$718．54文獻(xiàn)標(biāo)識(shí)碼：AAltitudinalVariationofNeedleFun

2、ctionalTraitsinNaturalPopulationofPicealikiangensisLIQing-fen，WANGJun—hui，JIAZi．rui，QIXiu．1an，De—xin，HOUXiao—zhu，ANSan-ping。(1．ResearchInstituteofForestry，ChineseAcademyofForestry，StateKeyLaboratoryofTreeGeneticsandBreeding，Beijing100091China；2．ForestryStationofXianggelilaCountryinYunnan

3、Province，Xianggelila674400，Yunnan，China；3．XiaolongshanForestryResearchInstitute，Tianshui741022，Gansu，China)Abstract：Thisresearchinvestigatedandselected4naturalpopulationsofPicealikiangens~inYunnanprovince，basedonitsnaturaldistribution．Thelength，width，dryweightandC，N，Pcontentsinneedlesoft

4、he4popula．tionsweremeasuredtosurveythephenotypicvariationofnaturalpopulationsandtherelationshipbetweenthephe—notypicvariationandtheiraltitudeofdistributionareas．ThemethodsofANOVAanalysis，multi．comparisonandcorrelationanalysiswereusedf0ranalyzingthedatameasured．Theresultsshowedthat，therew

5、ereremarkable(P<0．O1)variationsinneedlelength，widthanddryweightamongpopulations，withcomponentofvariance15．05％一28．03％，butnovariationofthemwithinpopulations．Thedryweightwassignificantly(P<0．O1)positivelycorrelatedtotheneedlelengthandwidth，andtheircorrelationcoeficientswere0．46639and0．66567

6、，respec-tively．Regardingtoelementcontentinneedles，thereweresignificant(P<0．05)variationsofNandPcontents，andC／Nratioamongpopulations，exceptingCcontent．Moreover，thecomponentofvarianceamongpopulationswashigher(29．98％一37．56％)whencomparedwiththatwithinpopulations，andtherewasdistinctly(P

7、varianceofN／Pratioamongpopulations，anditscomponentofvariancewas60．44％．Forcorelationsbetweennee—dlelengthandN／Pratio，altitudewasnegativelyandsignificantly(P