Comparative study of phytochemical profiles and morphological properties of some Damask roses from Iran

Abstract Background Rosa damascena is an aromatic rose species, which cultivated for its essential oil, and widely used in perfume, cosmetic, pharmaceutical, food industries the world. This experiment was conducted to evaluate oil morphological variations of 26 Damask genotypes. For this purpose, effect harvest time, i.e., early morning or evening, sampling type, fresh dried petals, on content evaluated. In addition, composition genotypes determined using gas chromatography–mass spectrometry (GC–MS). Results showed that preferable time flower collection based content. Furthermore, yield petals higher than petals. Twenty-five volatile compounds were found extracted oils. ?-Damascenone, a key marker quality 22 more 1.5% concentration G3, G6, G11 The highest components nonadecane (42.51%), ?-citronellol (40.82%), n -heneicosane (34.69%), geraniol (27.76%), -tricosane (14.2%). A wide variation characteristics, such as petal color (from white nearly red) numbers from about 25 95, also recorded. G2, G5, G15 genotypes, originated Isfahan, Fars, Kerman, respectively, selected number, weight, Conclusions suggest biochemical diversity can be effectively characterize genetic between different select special traits breeding programs. Graphical