Effect of planting dates and morphological characters on the resistance of maize to the large corn stalk borer (Sesamia cretica)

Nadine Asaad^1*, Reem Ali¹, Ghassan Naaseh¹, Rehab Hamdan¹, Abo Al alaa Zarka¹, Dema Darwish¹, Amal abo Khroob¹, Hadi Naser alaah¹, and Reem Mansour¹

1 Lattakia Research Center, General Commission for Scientific Agricultural Research (GCSAR), Syria.

(*Corresponding author: Nadine Asaad, Email: Nadineasaad20@gmail.com)

Received: 27/ 2/ 2025 Accepted: 6/ 7/ 2025

Abstract

The research was carried out at the Lattakia Research Center (Sianow) of General commission for Scientific Agricultural Research at Lattakia. during two growing seasons 2021-2022, to study. The effect of four planting dates (1April – 15 April – 1 May – 15May) on yield traits and related traits to borer of sweet corn (Faihaa 1). the experiment was designed according to the Completely Randomized Design (C. R.D) with three replications. The results of the statistical analysis showed that the second date was significantly to the rest of the dates in terms of early maturity and yield traits such as ear length and 100 kernel weight, with an increase percentage of (2.85%, 2.81%) respectively, on the rest of the planting dates. The second date also excelled in traits related to resistance borer, such as stem diameter and the length of the internode basal ring (LIBR), with an increase rate of (0.61%, 0.31%) respectively, over the rest of the dates. It also had the lowest percentage of the percentage of dead hearts, intensity of damage and the percentage of lost at this the planting date, while there were no significant differences between the four dates, in number of holes, and the results showed that the second date (April 15) significant in the productivity traits and escape from infection by maize stalk borer Sesamia cretica, of sweet corn (Faihaa 1), in the Syrian coast’ conditions. The result of the correlation coefficient showed that there is significant positive relationship between grain yield and some yield components while foe the traits which related to borer, there is significant an inverse correlation between the grain yield t and LIBR. There is significant positive relationship between, grain yield and diameter stalk.

Keywords: sesame, triple superphosphate, zinc sulfate, protein, oil.

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The effect of phosphorus fertilization and zinc spraying on some quality traits of sesame plant (Sesamum indicum L.)

Faten Samir Airangy1*, Saleh Kbaili1 and Abdelaziz Bouaissa2

¹Department of Field Crops, Faculty of Agricultural Engineering, Lattakia University, Syria.

²Department of Soil and Water Sciences, Faculty of Agricultural Engineering, Lattakia University, Syria.

(*Corresponding author: Faten Airangy, Email: faten.airagy@gmail.com, Tel: 0941524880).

Received: 23/ 4/ 2025 Accepted: 21/ 7/ 2025

Abstract

The research was carried out in Al-Drouqiat village, Lattakia Governorate, Lattakia University for the year 2023-2024 to study some qualitative characteristics of sesame plants and oil production under the influence of five levels of phosphate fertilization (0, 40, 60, 80, 100) kg of triple superphosphate fertilizer TSP containing 46% of phosphorus pentoxide P2O5, and four concentrations of zinc spraying (0, 30, 60, 90) mg of zinc sulfate fertilizer Zn2SO4. The experiment was conducted according to a randomized complete block design with a single split plot arrangement and three replicates. The main plots included phosphate fertilization, while the secondary plots included zinc spraying. The results showed that the phosphate fertilization level of 100 kg TSP 46% P2O5/ha significantly outperformed all other fertilization levels, and the control had the highest mean for the trait he percentage of oil (52.07%), protein (23.13%), and ash (3.80%) in the seeds, and the highest oil yield was recorded at the level of 100 kg P2O5/ha (653.46 kg/ha), while the control achieved the highest average for the characteristics of carbohydrate percentage (12.29%), moisture (7.17%), and fiber (15.48%). The zinc spray concentration of 60 mg Zn2SO4/L gave the highest average of oil percentage (49.36%), protein (22.11%), and ash (3.78%) in the seeds, while the concentration of 90 mg Zn2SO4/L gave the highest oil yield (514.80 kg/ha). In contrast, the control achieved the highest average of carbohydrate percentage (10.80%), moisture (7.25%), and fiber (13.08%) in the seeds. The interaction (100 kg TSP 46% P2O5/h × 60 mg Zn2SO4/L) achieved a significant superiority with the highest value for the oil percentage trait (53.76%), protein (24.05%), and ash (3.90%) over all other interactions. The interaction (100 kg TSP 46% P2O5/h × 90 mg Zn2SO4/L) gave the highest value for the oil yield trait (715.55 kg/h), and there were no significant differences between it and the interaction (100 kg TSP 46% P2O5/h × 60 mg Zn2SO4/L) regarding the oil yield trait.

Keywords: sesame, triple superphosphate, zinc sulfate, protein, oil.

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Effect of supplementary irrigation and manure fertilization on Leafe components of Olive tree- verities “Alkhdery cv.”

Kholod Abbas^1* , Georges Makhoul¹, Faisal Dway¹ and Mohammad Naddaf²

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.

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**A Study of the Chemical Composition and Relationship Characteristics of Some Ceratonia siliqua L. |Genotypes Spread in Latakia Governorate**

Samer Nasser^*(1) Tala Amin⁽¹⁾ and Hafez Mahfoud⁽²⁾

(1). Forestry and Environment Department, Faculty of Agriculture, Tishreen University, Latakia, Syria.(2). Biotechnology Department, General Commission for Scientific and Agricultural Research GCSAR, Damascus, Syria.

(*Corresponding author: Eng. Samer Nasser. E-Mail: nasersamer156@gmail.com).

Received: 27/03/2018 Accepted: 05/09/2018

Abstract

The study was conducted between 2015 and 2017 on 26 species of Ceratonia siliqua L. at four locations viz. AL Dakaka, Wadi Qandil, Um Al-Toyoor and Al-Baseet, in the north-western region of Latakia governorate, Syria in order to study some chemical properties in the pods and seeds of these species. For total sugars (%), the highest percentage was found in T8 pods (57.7%) followed by the D3 (56.9%). The percentage of protein in the pods ranged between (5- 8.2%) and seeds (25-33%) where T8 recorded the highest values. The highest fat value was found in T8 (1.83%) and D3 (3.75%). The percentage of dry matter in the pods ranged from 12.15% in K3 and 8.16% in T1. These genotypes differed genetically more than because of environmental conditions because the locations of the study were geographically close. The genotypes were distributed within the relationship tree in three groups, the first included 3 genotypes and the third contains 9 genotypes from all the study locations. In contrast, the second group included 4 genotypes from the locations of Um Al-Toyoor, Wadi Qandil and Al-Dakaka.

Key words: Carob (Ceratonia siliqua L.), Chemical composition, Sugars, Protein, Fat, Dry matter, genotypes.

Full Paper in Arabic: PDF