全 文 :!23" !5#
Vol.23 No.5
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ACTA AGRESTIA SINICA
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Sep. 2015
犱狅犻:10.11733/j.issn.10070435.2015.05.002
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犃犾狅犿犲狋狉犻犮犚犲犾犪狋犻狅狀狊犺犻狆狊犫犲狋狑犲犲狀犕狅狉狆犺狅犾狅犵犻犮犪犾犪狀犱犚犲狆狉狅犱狌犮狋犻狏犲
犜狉犪犻狋狊狅犳犆犺犲狀狅狆狅犱犻狌犿犵犾犪狌犮狌犿
HUANGYingxin1,SONGYantao2,FANGaohua1,ZHOUDaowei1
(1.NortheastInstituteofGeographyandAgroecology,ChineseAcademyofSciences,Changchun,JilinProvince130102,China;
2.ColegeofEnvironmentandResource,DalianNationalitiesUniversity,Dalian,LiaoningProvince116600,China)
犃犫狊狋狉犪犮狋:Thealometricrelationshipbetweenmorphologicalandreproductivetraitsandtheirresponseto
environmentalvariationswereanalyzedbymeasuringthemorphologicalandreproductivetraitsof犆犺犲狀狅狆
狅犱犻狌犿犵犾犪狌犮狌犿underdifferentlight,nutrientandgerminationtimingconditions.Theresultsshowedthat
therewerealometricrelationshipsbetweenmorphologicalandreproductivetraits.Thebranchofbigsize
hadfastergrowthratethantheplantofsmalsize,meanwhile,犆.犵犾犪狌犮狌犿alocatedmoreresourcetore
productivegrowth.However,thereweretradeoffbetweeninflorescencedensityandplantsize.Thesmal
lerplantsizeof犆.犵犾犪狌犮狌犿hadthehigherinflorescencedensity.Thetreatmentoflightintensitycaused
thevaryingreproductivetraitsof犆.犵犾犪狌犮狌犿,whilethesechangesresultedfromthevaryingplantsizeun
derdifferentlightgradients.Thereproductivestrategy(alometry)didkeepinconstant.Nutrientand
germinationtimingtreatmentsaffectedthealometricrelationships.Therewereinconstantalometricrela
tionshipsbetweenmorphologicalandreproductivetraitsinnutrienttreatments.However,thetreatmentof
germinationtimehadsignificanteffectonthealometry,theplantsoflatergerminationalocatedmorere
sourcetoreproductivegrowth.
犓犲狔狑狅狉犱狊:Alometry;犆犺犲狀狅狆狅犱犻狌犿犵犾犪狌犮狌犿;Totalbranchvolume;Totalbranchlength
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Table1 Theorthogonalexperimenttable(34)andtheeffectsofenvironmental
factorsonthemorphologicalandreproductivetraits
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Treatment
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áâ
Nutrient
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Generation
date
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Total
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/cm3
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Branch
number
SC
Reproductive
biomass/g
oºp
Inflorescence
number
oºC
Inflorescence
mass/g
oºG¨
Inflorescence
density
/g·cm-3
1 1(HL) 1(HN) 1(EG) 1 36.12a 669.0a 25.4a 32.30a 323.3a 0.1032a 10.7c
2 1(HL) 2(MN) 2(MG) 2 22.52bc545.5bc 22.5abc 26.42ab 251.1b 0.0953a 15.4c
3 1(HL) 3(LN) 3(LG) 3 8.26ef354.6ef 20.5bcd 4.93d 99.4e 0.0490b 19.6c
4 2(ML)2(MN) 3(LG) 1 29.33ab643.8ab 24.8ab 16.61bc 255.6b 0.0552b 11.9c
5 2(ML) 3(LN) 1(EG) 2 6.52ef295.2fg 15.5ef 2.58d 97.3e 0.0246b 34.1b
6 2(ML) 1(HN) 2(MG) 3 20.21cd541.4bcd 26.4a 9.45cd 191.2c 0.0519b 14.8c
7 3(LL) 3(LN) 2(MG) 1 2.07f 230.8g 11.6f 1.26d 63.8e 0.0190b 47.1a
8 3(LL) 1(HN) 3(LG) 2 12.39de454.5cde 19.0cde 3.93d 110.9de 0.03004b 11.2c
9 3(LL) 2(MN) 1(EG) 3 11.99de431.9de 17.4de 6.62cd 157.8cd 0.0391b 17.7c
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Reproductive
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Table2 Thealometricanalysesofdifferenttraits
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Totalvolume
0.578 <0.001 0.607 0.563-0.654 1.538 <0.001 ns
oºp
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oºp
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oºC
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0.141 <0.001 1.593 1.432-1.772 -5.622 <0.001 ns
oºC
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0.112 <0.001 2.093 1.879-2.332 -4.128 <0.001
oºG¨
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0.651 <0.001 -0.668-0.715- -0.624 1.804 <0.001
oºG¨
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0.351 <0.001 -1.517-1.664- -1.383 5.112 <0.001 +
oºG¨
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Branchnumber
0.281 <0.001 -1.993-2.197- -1.808 3.689 <0.001
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