Identification and evaluation of some local grapevine genotypes in Mahneshn township (Zanjan) using ampelography and ampelometry methods

Document Type : Full Paper


. Former Graduate Student and Associate Professors, Faculty of Agriculture, University of Zanjan, Iran


In order to study the genetic diversity of grapevine in Mahneshan (Zanjan) an experiment was performed during 2012 and 2013. In different phenological growth stages (bud burst, anthesis and fruit ripening) quantitative and qualitative characteristics of 12 genotypes (Marageh, Shahani, Khalili, Ag-ozom, Germez keshmish, Ag-keshmish, Gara-keshmish, Asghari, Pert-pert, Gezel-ozom and Gandomeh) based on IBPGR descriptor were evaluated. Results showed that all of evaluated genotypes belonged to vinifera (european) group. Among the genotypes, Gezel-ozom and Gandomeh had female flowers (with inverted stamens). This two cultivars are very important in breeding programs. Simple correlation analysis results indicated the existence of significant positive and negative correlations among some characters. Cluster analysis of assessed traits at 10 Euclidean distance separated the genotypes into three groups. Five genotypes (Germez keshmish, Ag-keshmish, Asghari, Pert-pert and Ag-ozom) stood in the first group.In the second and third group (Maragheh, Shahani and Khalili) and (Gezel-ozom, Gandomeh, Gara-keshmish and Sahebi) stood respectively. Also the principal component analysis (PCA) showed that the first two main components explained the 78.32% of total variations.



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