حصر وتوصيف وتقييم بعض أشجار الخرنوب Ceratonia siliqua L. المنتشرة طبيعياً في محافظة اللاذقية
Abstract
This study was carried out during the period of 2015 - 2016 on some Ceratonia Siliqua L. trees, which were spreaded naturally in Lattakia Governate, in order to determine their distribution areas and set their own taxonomic keys, in addition to evaluating the best in terms of both quantity and quality.
19 trees were collected in the areas of Lattakia, Jabla, Qardahah and Al-Hafah in Lattakia Governate, morphological characterization was done based on /22/ characteristics, and some analyses were conducted on the content of the pods and seeds of the most important chemical components /7/ characteristics.
Based on all characteristics /29/, the cluster analysis showed a difference ratio of (47%) between the studied trees, in which the types were distributed in seven different groups and the different types of sites were mixed. Similarly, the cluster analysis of the pods and the seeds of the studied types showed a contrast ratio of (52%) and (56%) respectively.
The study results in the setting taxonomic keys for the studied trees, in addition to establishing a morphological identity for each type which is useful in evaluating the types and determining the best among them according to the desired purpose (Productivity - Concentration of sugars and protein in pods - Percentage of fat in seeds).
أجريت الدراسة خلال العامين 2015 - 2016 على بعض أشجار الخرنوب Ceratonia Siliqua L. المنتشرة طبيعياً في محافظة اللاذقية وذلك بهدف حصر وتحديد مواقع انتشارها ووضع مفاتيح تصنيفية خاصة بها, إضافة إلى تقييم أفضلها إنتاجاً من الناحيتين الكمية والنوعية.
تم حصر الاشجار المدروسة ضمن 19 طرازاً منتشراً في مناطق اللاذقية وجبلة والقرداحة والحفة التابعة لمحافظة اللاذقية, وتم توصيفها مورفولوجياً بالاعتماد على /22/ صفة, إضافة إلى اجراء بعض التحاليل الخاصة بمحتوى الثمار والبذور المرتبطة بـ /7/ صفات متعلقة بأهم المركبات الكيميائية لها.
أظهرت الشجرة العنقودية بالاعتماد على الصفات مجتمعة /29/ صفة وجود نسبة تباين بين الأشجار المدروسة وصلت لـ 47% توزعت في سبع مجموعات متباينة وتداخلت فيها طرز المواقع المختلفة. وبشكل مماثل أظهرت شجرتي القرابة الخاصتين بصفات ثمار وبذور الطرز المدروسة وجود نسبة تباين وصلت لـ (%52) و (%56) على التوالي.
خلصت الدراسة إلى وضع مفاتيح تصنيفية للأشجار المدروسة إضافة إلى تحديد هوية مورفولوجية خاصة بكل طراز تفيد في تقييم الطرز وفي تحديد الأفضل بينها وفقا للغرض المطلوب مثل الإنتاجية, نسبة السكريات والبروتين في الثمار ونسبة الدهون في البذور.
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