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1、第35卷第7期中南林業(yè)科技大學(xué)學(xué)報(bào)、,01.35No.72015年7月JournalofCentralSouthUniversityofForestry&TechnologyJul2015Doi:10.14067~.cnki.1673—923x.2015.07.009http://qks.csuft.edu.cn不同基質(zhì)配方對降香黃檀幼苗生長生理的影響孫潔,劉俊,郁培義,陳偉玉,何書奮(三亞市林業(yè)科學(xué)研究院,海南三亞572000)摘要:以珍貴樹種降香黃檀幼苗為材料進(jìn)行試驗(yàn),選用椰糠、泥炭土、黃心土為基料,采用正交試驗(yàn)設(shè)計(jì)L。(3),研究不同基質(zhì)配比對降香黃檀幼苗生長生理
2、特性及土壤環(huán)境質(zhì)量變化的影響,篩選出適宜降香黃檀幼苗栽培的基質(zhì)配比。結(jié)果表明:不同輕基質(zhì)配比對降香黃檀幼苗除溫度沒有顯著性差異外,胸徑、株高、葉綠素、氮素、水分、濕度和電導(dǎo)率均有顯著性差異。不同水平的椰棣對株高有極顯著性差異,除氮素和水份有顯著性差異,其他指標(biāo)未達(dá)到顯著水平;不同水平的泥炭土對濕度、電導(dǎo)率有極顯著性差異,對植株生理指標(biāo)影響效果亦較好;不同水平的黃心土除對株高、氮素、電導(dǎo)率、溫度的影響不顯著外,其他各項(xiàng)指標(biāo)均達(dá)到極顯著性差異。綜合評定結(jié)果顯示:以處理組1(椰糠:泥炭土:黃心土=2:2:1)為降香黃檀育苗的最佳輕基質(zhì)配比,各項(xiàng)指標(biāo)結(jié)果顯示較均衡。關(guān)鍵詞:降香
3、黃檀;幼苗生長生理;容器育苗;輕基質(zhì)中圖分類號:$758.52文獻(xiàn)標(biāo)志碼:A文章編號:1673.923X(2015)07.0045.05EffectsofgrowthphysiologyonDalbergiaodoriferaseedlingsbydifferentmatrixesSUNJie,LIUJun,YUPei—yi,CHENWei—yu,HEShu—fen(SanyaAcademyofForestry,Sanya572000,Hainan,China)Abstract:TheexperimentsontheseedlingsofpreciousspeciesD
4、albergiaD如rrawereconductedbyselectingthreekindsofmedia,includingcoconuthust,peatandyellowsoil,andadoptingorthogonaldesignL9(3).Theimpactsofdiferentmediaratioongrowthmorphology,physiologicalindexesandsoilindicatorswereinvestigatedinordertofigureoutmorefavorablemediaratioforseedlingsofDodo
5、,.Itwasfoundthatexceptthetemperatureoftheseedlingswasnotdiferentiatedbythediferentratiosoflightmedia,therewereremarkablediferencesamongseedlingsofD.odorigerawithdiferentratiosoflightmedia,astotheindicators,suchasdiameteratbreasthcight,plantheight,chlorophyll,nitrogen,moisturecontent,humi
6、dityandconductivityledbydiferentlightmatrixes;Diferentlevelsofcoconuthusthadallextremelysignificantdiferenceonplantheight,andexceptthereweresignificantdiferencesbetweennitrogenandmoisture,otherswerenotremarkable;Thediferentratiosofpeatsoilsignificantlyinfluencedthehumidityandtheconductiv
7、ityofseedlingsofD.o~r@ra.a(chǎn)swellasthephysiologicalindicatorsoftheplants;Exceptthediferentlevelsofyellowsoilsdidnothadsignificantlye~ctsonplantheight,nitrogen,conductivityandtemperature,hadextremelysignificante琢:ctsonotherindicators.Thecomprehensiveassessmentresultsshowthat