بررسی تنوع و ارتباط خصوصیات مورفولوژیکی و فنولوژیکی و تاثیر آنها بر عملکرد گل محمدی ‭Rosa damascene Mill ‬در مناطق مختلف کشور

To evaluate genetic potential for production yield increase and stability in Rosa damascena Mill. an experiment was conducted using complete blocks design with three replications. Rosa damascene Mill. genotypes collected from areas in province of Iran, were cultivated in at Ali Abad medication plants station Arak Iran. thedata evaluated for the greatest traits in relation with morphology and phenology, showed significant differences in time (year), genotype and time * genotype. The highest amounts of height and flowering period were detected in Isfahan genotype and the highest stamen number per flower, fruit width and single flower weight in Guilan genotype.The highest dry matter percentage of flower in was observed Isfahan genotype and the highest flower number per plant in Isfahan genotype. According to the results of this investigation, a wide range of variation among the genotypes was observed in terms of the traits under study. For an efficient breeding program, flowering duration could therefore, be one of the useful criteria for yield selection, though more genotypes, as well as further analyses, such as yield quantity and quality are necessary to be considered. Keywords: Diversity, Genetic potential, Morphology,phenology, Rosa damascena Mill.