Document Type : Research Paper
Authors
1 Research Institute of Forests and Rangelands, P.O.Box 13185-116, Tehran, Iran
2 Islamic Azad University, Boroujerd Former Postgraduate Student of (M.SC)
Abstract
In order to study the genetic variation in Rosa damascena Mill., an experiment was conducted at the experimental field of Research Institute of Forests and Rangelands. Eleven genotypes were evaluated, using a randomized complete blocks design with three replications. Flower yield, flower number, single flower weight, plant height, canopy, branch angel, leaf number, spine density and spine length, were analyzed, using analysis of variance, principal components analysis and cluster analysis. The results showed significant differences among genotypes for all of the traits, indicating a considerable genetic variation in germplasm available in Iran. Using principal components analysis, the first three components determined 68.43% of the total variation. According to the cluster analysis, genotypes could be grouped into 3 clusters. Genotypes in cluster 1 averaged well above the overall mean for productivity and the other characteristics.
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