丽江云杉天然种群针叶功能性状及其随海拔的变异.pdf

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1、林业科学研究2013，26(6)：781～785ForestResearch文章编号：1001—1498(2013)06-0781-05丽江云杉天然种群针叶功能性状及其随海拔的变异李青粉，王军辉¨，贾子瑞，齐秀兰，齐德新，侯晓柱，安三平(1．中国林业科学研究院林业研究所，林木遗传育种国家重点实验室，北京100091；2．云南迪庆州香格里拉县林业局云南香格里拉674400；3．甘肃小陇山林业科学研究所，甘肃天水741022)关键词：丽江云杉；天然种群；针叶性状；元素；海拔中图分类号：$718．54文献标识码：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