Effect of the Extent of Root Pruning on Growth, Biomass and Nutrient Content of Oak (Quercus castaneifolia C. A. Mey.) Seedlings

Journal of Applied Biological Sciences

Aidin Parsakhoo¹  Mohammad Reza Pourmajidian¹  Shohre Ammi¹  Masoud Tabari¹  Kambiz Spahbodi¹ 

关键词: Oak (Quercus castaneifolia C. A. Mey.);    Root pruning;    Growth;    Nutrient;    Biomass;   

DOI  :  

学科分类：生物科学（综合）

来源: Nobel Bilim ve Arasirma Merkezi/Nobel Science and Research Cente

【 摘 要 】

Theaimofthisstudywastodeterminetheinfluenceoftheextentofrootpruningonnutrientcontent,biomass,vitalityandnurserygrowthofoakseedlings(QuercuscastaneifoliaC.A.Mey.).Attheendofthefirstyearofnurserygrowththemainrootofoakseedlingswasprunedbyscissorsatdistancesof15,30and45centimetersfromcollar.Then,oakseedlingswereplantedinthefieldandvegetativecharacteristicswererecordedafterfourgrowingseasons.Resultsshowedthatcollardiametergrowth,heightgrowthandlengthofterminalinternodeweresignificantlyaffectedbyrootpruningtreatments(p<0.05).However,nosignificantdifferencesinseedlingssurvival,seedlingsvitalityandspecificleafareawereevidentatthedifferentrootpruningtreatments(p>0.05).Thelowesttotalbiomassofoakseedlingswasobservedat45cmtreatment.Theprunedrootsatdistanceof15cmfromcollarhadlowestnitrogencontent.HighestlevelofthePhosphorouscontentofleaveswasobservedattreatmentof30and45cm.Thisstudysuggestedthatforaccesstobettergrowthofoakseedlings,the30and45cmpruningtreatmentsshouldbeselected.Thepruningtreatmentof15cmisonlysuitablefortotalbiomassincreasing.

【 授权许可】

Unknown