Document Type : Research Paper

Authors

• S.R Tabaei-Aghdaei ¹
• S. Farhangian ²
• A.A. Jafari ¹
• M.B. Rezaee ¹

¹ Research Institute of Forests and Rangelands, Tehran, Iran

² M.Sc Student of Azad University, Boroujerd Branch

Abstract

To evaluate 17 Damask rose genotypes regarding their variation for morphological traits, an experiment was conducted at the experimental field of Research Institute of Forests and Rangelands. Analysis of variance, mean comparison and phenotypic correlation analysis were performed. The variance analysis showed significant differences among genotypes for plant height and flower number per branch (P<0.01), number of leaves per branch, leaflet length and thorn density (P<0.05). Also, comparison of means classified the genotypes for the above characteristics. Significant correlations were observed between different traits. A significant (P<0.01) phenotypic correlation (r=0.96) indicated a strong positive relationship between flower yield and number of flower per plant. From the results, a wide range of variation was observed among the genotypes. Morphological characteristics could, therefore, be useful criteria for selection for yield. However, more genotypes, as well as further analyses, including flower quality especially essential oil components are necessary to be considered, in an efficient breeding of Rosa damascena.

Keywords

• Rosa damascena Mill
• Genetic variation
• morphological traits
• Central regions of Iran