Tharwat Redwan(*1) ، Hafez Mahfoud(1) and Mazen Nassour (2)
(1). Scientific Agricultural Researc Center of Lattakia، General Commission for Scientific Agricultural Research (GCSAR)، Syria.
(2). Department of Horticulture، faculty of Agriculture، Tishreen University، Lattakia، Syria
(*Corresponding author: Eng. Tharwat Redwan E-mail: tharwat.redwan@yahool.com).
Received: 20/02/2020 Accepted: 9/06/2020
Abstract:
This research was conducted at the Agricultural Research Center in Lattakia، assessed the effect of altitude on the yield of four genotypes of Damascena rose (RD1) Kassab(، RD2(Alqardaha)، RD3 (Gablah)، RD4(Al-Marah)) were planted at four different altitude(Poka 20m، Alrmadeaa 300m، Kassab 650m، Dabasa 985m) in Lattakia during 2018-2019، the study showed that the Kassab site(650 m) gave the highest yield (329.87) g، and the highest value of average number of flowers (82.15) flower، and Two sites (Kassab 650m، Dabasa 985m) have higher than the rest of the sites in The percentage of essential oil، and for the genotypes، On the other hand the RD1 genotype had the highest average flower weight (11.57) g and average yield (380.53) g، but it contained the lowest number of flowers and percentage of oil essential، while the RD3 genotype was superior The rest of the genotypes and in all studied sites، in the average number of flowers (89.75). The results of the qualitative analysis of the essential oil produced by the four genotypes planted at Kassab site contained good ratios of several important compounds، ( Nerol، Geranol، Nonadecene، Linalool، Tetradicanol، n- Hexadecane).
Key words: Rosa Damascena، Yield، Genotypes، Essential Oil، Lattakia.
Full paper in Arabic: PDF