Kholod Abbas1* , Georges Makhoul1, Faisal Dway1 and Mohammad Naddaf 2
1 Department of Horticulture, Faculty of Agriculture, Lattakia University, Lattakia, Syria.
2Department of Food Science – Faculty of Agriculture – Lattaakia University Lattakia – Syria.
(*Corresponding author: Dr. Kholod Abbas. E-Mail: kholod.abbas7@gmail.com ).
Received: 28/ 06/ 2025 Accepted: 3/ 09/ 2025
Abstract
The experiment was carried out during three seasons (2020,2021,2022) on Al- khdery olive trees,30 years old in Rwayst al-hersh village in Lattakia. In order to study the effect of supplementary irrigation and manur fertilization on clorophyll mg/y ,dry matter%, carbohydrate %,protein% ,fat% and fibers% contents in olive leaves cv”Alkhdery” .Two levels of organic fertilizer 5 and 7 kg\ tree, were added in November, and irrigation was used at mid June, July and August at a fixed irrigation water rate at 800 liters\ tree\irrigation. A completely randomized design was adopted. The experiment included 12 treatments and four replications per treatment. The data were analyzed using Genestat 12 program by calculating the least significant difference level of 5%. The results showed that the T12 treatment (7 kg\tree organic fertilizer+ 3 batches irrigations) and T11(7 kg\tree organic fertilizer+ 2 batches irrigations) and T10(7 kg\tree organic fertilizer+ 1 batches irrigations) and T8(5 kg\tree organic fertilizer+ 3 batches irrigations ) were superior in tern of clorophyll content (2.0 , 1.95 , 1.91 ,1.88,1.83)mg/g wet weigh .T9 was superior in dry matter55.72%. T12 and T11 were superior at carbohydrate (37.70 , 37.35)% and fat (30.77, 29.81)% respectively without significant differences between the. T12 was superior in average of protein 11.31%. while T8 and T9 were superior in fiber rate (28.12 ,28.3)
Keywords: Olive, Organic Fertilizer , Supplementary Irrigation, Leaves Content , Protein , Chlorophyll, Fibers.
Full paper in Arabic: pdf