|
This research was conducted during the seasons (2019 & 2023) in order to survey the location of Khodeiri and Doebly olive cultivars spread in Lattakia and Tartous governorates. 10 phenotypes of Khodeiri variety and 4 phenotypes of Doebly variety were selected. The phenologically selected types were characterized based on the information sheet of the International Olive Council (IOC). The morphological characterization revealed clear variations between the considered phenotypes. The obtained data was used to create an affinity diagram that clarified similarities between the types and morphological variation estimated at 0.91 for Khodeiri and 0.45 for Doebly. The biodiversity of the two olive varieties (Khodeiri & Doebly) was also studied using the fractal geometry technique. This technique showed genetic diversity for Khodeiri and Doebly among the types. By conducting a cluster analysis of the considered types, it was possible to divide Doebly types into two main groups with a variation degree of 0.53, and Khodeiri types into two main groups with a variation degree of 0.97. The quantity and quality of olive oil produced from some types of Khodeiri and Doebly were studied.. The study showed that the pH of samples was not identical, as it ranged between (0.5-2.25). All oil samples are classified as extra virgin, with the exception of Khodeiri (Mushayrafa) sample, which is classified as normal olive oil. The peroxide index ranged (2-5.5); Dakrawi type (Sakhaba) recorded the lowest peroxide value, while Khodeiri (Mushayrafa) recorded the highest one. The olive oil percentage of the studied samples ranged between low for both Dakrawi and Menqiri types (Dirana) ranged between(13.9- 14.65) , medium for both Doebly and Dremalali types ranged between(18.86- 21.21) and high for Khodeiri types which reached 30.83 for the type KH1. The results of the molecular characterization of the types of both Khodeiri and Doebly indicated that their genetic morphology is very close to each other and distant from the control (Zaizafoun) up to 56%. The variation of genetic morphology for Khodeiri and Doebly reached 35% between (DR1 & DK1), while the highest variation was for Khodeiri by 25% between (KH5 & DK1), and the highest variation for Doebly reached 26% between (DA2 & DA1) with (DR1). The rest of the genetic morphologies can be considered similar or, to a large degree, identical.
|
|
Keywords: Olive, Khodeiri , Al-Doebly, Chemical Composition of Olive Oil, Fractyl geometry ,Molecular Analysis.
|
