Allaa Abed Al-Razak Al-Haj* (1)

(1). Animal Production Department, Faculty of Agriculture, University of Aleppo, Aleppo, Syria.

(*Corresponding author: Dr. Allaa Al-Haj . E-Mail: allaapcr7@gmail.com).

Received: 17/01/ 2021          Acceptance: 23/10/ 2021

Abstract: 

This study was conducted at the Animal House Research Center at the University of Aleppo, on a flock of  Inbred local quail (200 birds), consisted of four color groups (white, cream, striped and black) in 2019, to estimate genetic parameters of egg production and quality traits (Heritability, Genetic Correlation, Repeatability, Genetic response). Results showed that the heritability values ​​for some traits were close to the values ​​of heritability recorded for international standard strains, and the highest value recorded for the number of eggs was in black quail (0.71). The genetic correlations of some egg quality traits were positive and others were negative. As for Repeatability, it was found that its values were relatively less than the values recorded in previous studies. As for the estimates of Genetic response for some traits, they were positive for some traits and negative for others, due to inbreeding.

Keywords: local quail, inbreeding, Heritability, Genetic Correlation, Repeatability, Genetic response.

Full paper in Arabic: pdf

Ranim Othman* ⁽¹⁾, Mohamad Galiya⁽¹⁾, and Zohair Almajed  ⁽¹⁾

(1). Faculty of Science, Tishreen University, Lattakia, Syria.  

(*Corresponding author: Ranim Othman. E-Mail: ranim.mr.othman@gmail.com).

Received: 24/09/ 2021          Acceptance: 9/11/ 2021

Abstract: 

The research aims to study the reproductive biology(Sex Determination, Sexual Maturity, Fertility, Reproductive period) of the Trachurus trachurus fish caught from the Syrian marine water using local fishing methods ( gill nets, purse seines), and their total number is 401 individuals. The results of the research showed that the total fertility of mature females of the  Trachurus trachurus fish amounted to 110208/ eggs in the Ras Albasit area and 94535/ eggs in the Burj Islam area, with lengths ranging from 16.2 – 22.2 cm. The results of the study of changes in the values of the Sexual maturity coefficient (GSA%) indicated that the sexual cycle lasts for a whole year, but the laying of eggs occurred in the form of batches. The peak value of the maturity coefficient was reached in the regions of Ras Al basit and Burj Islam during the month of May, and females lay their eggs for the first time when average lengths of 16.4 cm. The statistical study also showed that there were significant differences (p > 0,05) in the mean values of the liver weight index (HSI%) between females and males in both study areas.

Keywords: Reproductive biology, Fertility, Trachurus trachurus, Syrian marine water.

Full paper in Arabic: pdf

Wafaa Aboud*⁽¹⁾, Bashar Hayias⁽²⁾, Mahmoud  alhamdan⁽¹⁾

(1) Scientific center of Homs, General commission for scientific Agricultural Researches, Homs, Syria.

(2) Department of field crops, Faculty of Agriculture, AL Baath University, Homs, Syria.

(*Corresponding author: Wafaa Aboud, E-Mail: wafaamah2019@gmail.com).            

Received: 8/08/ 2021.          Acceptance: 9/11/ 2021

Abstract: 

This research was carried out during the agricultural season 2019-2020 at the Agricultural Scientific Research Center in Homs at the Irrigation Research Station in Mokhtaria, in order to study the effect of Foliar application with elements of zinc(as sulphate of Zink 13%)  and boron(as borax fertilizer17%) separately or together in some growth indicators(length of plant, leaf’s area, number of pods on plant, weight of 100 seed, weight of seeds on plant and in the productivity of two varieties of soybeans(secondary factor), the promising variety Sb239 And the variety Ascrewe3803, spilt plot design with four treatments(main factor) was used as fallowing, spraying, zink and boron togther(B₂Zn₂), boron without Zink(B₂Zn₀), zink without boron(Zn₂B₀), and blank without boron and zink(B₀Zn₀), the treatments were added as concentration of 2g/liter, and the results showed, an increase in, the length of the plant, area of leaf, the number of pods, and significant increasing on some seed indicators, as a weight of 100 Seeds and weight of seeds on plant, at the two studied varieties in general and the highest percentage was when spraying the elements boron and zinc together, and the value of  increasing in all studied indicators at the variety Sb239 was bigger than it’s value at the variety Ascrewe3803, On the other hand, Soybean yield increased in the studied varieties Sb239 and Ascrewe3803 when spraying boron, zinc by all studied levels (Zn₂B₂, Zn₀B₂, Zn₂B₀), which significantly outperformed the blank (without spraying), Where the highest increase in productivity was when spraying the elements zinc and boron together which reached to (61%) at the variety Sb239 and (57%) at the variety Ascrewe3803, also the results showed, the response of the soybean variety Sb239 when spraying the elements boron and zinc at all studied levels (Zn₂B₂, Zn₀B₂, Zn₂B₀)greater than the Ascrewe3803 variety response at all studied growth indicators as well as in productivity estimated in kg / ha.

Keywords: Soybean, variety Sb239, variety Ascrewe3803, Borax, Sulphate of Zinc, Growth Indicators, Productivit.

Full paper in Arabic: pdf

Heba kadi *⁽¹⁾, Mahmoud Baghdadi ⁽¹⁾, and Zakaria Hassani ⁽¹⁾

(1). Horticulture Department, Faculty of Agricultural Engineering, University of Aleppo, Aleppo, Syria.

(*Corresponding author: Heba kadi, E-Mail: hebakadi92@gmail.com).

Received: 3/08/ 2021          Acceptance: 4/11/ 2021

Abstract: 

The effect of foliar spraying studied organic calcium at concentrations (2 and 4 ml/l) and ascorbic acid at concentrations of (400, 600 ppm) and their mixtures on some physical and quality characteristics and the yield of (Coscia) pears fruits during the 2020 season, in Al-Sefira district of Aleppo Governorate, where the spraying was carried out in the stage of completion of growth, while the control was left without treatment. The results showed that fertilization with organic calcium and ascorbic acid with different treatments and concentrations improved the quality of fruits and significant differences compared to the control, as the treatment of calcium 4ml/l+ascorbic acid 400 ppm significantly increased the productivity of the tree, the weight of the fruit, the length and size of the fruit. They were (46.24 kg / tree, 119.35 g, 8.5 cm, 121 cm³) respectively Compared with the control (35.30 kg / tree, 82.92 g, 7.53 cm, 84 cm³) respectively. It also improved the chemical properties of the fruits by increasing the percentage of total solids (TSS),pH and vitamin C, and reducing the acidity compared to the control.

Keywords: pre- harvesting , organic calcium, ascorbic acid, pears, fruit quality.

Full paper in Arabic: pdf

Hadia Hassan^(1)* ,Sawsan Suleiman⁽¹⁾, and Maher Dais⁽²⁾

(1) Horticulture department- Tishreen University Lattakia Syria

(2) GCSAR, Lattakia, Syria.

(*Corresponding author: Hadia Hassan : Email:hadiahasan894@gmail.com)

Received:3/08/2021             Accepted: 14/10/2021

Abstract: 

The research was carried out at Al-Hanadi Research Station of Lattakia Agricultural Scientific Research Center during 2019-2020 , to study the effect of humic acid HA ( from Humantic –Company-Germany) application (500, 1000 and 1500) ppm ,on Spunta potato growth and productivity at two levels (80% and 40% ) of the field capacity under greenhouse conditions. The experiment included 8 treatments repeated 3 times. The experiment design used a split plot system. After 35 days of planting, plants were sprayed with humic acid three times with an interval of ten days . The results showed a decrease in some vegetative and productive indicators at 40% level than at 80%. The lack of irrigation decreased plant height and the number of leaves and plant production (kg / plant) without affecting leaf area. Humic treatment at 1000 ppm gave the highest rate of photosynthesis (0.199 g / cm2 / day) at 40%level of field capacity . The highest number of leaves (25.125) leaf / plant and leaf area were recorded at 80%. Stem height, relative water content in leaves (64.93%), and photosynthesis rate increased with 1500 ppm at 80% level. the highest productivity (2.66) kg / m2 achieved at humic 500 ppm at 80%. Whereas, the best HA used efficiency was at 1000 ppm under water stress.
Key words: potato, Humic acid , water stress.

Full paper in Arabic: pdf

Ali Khalil Deeb ⁽¹⁾, Fahed Sahiony ⁽²⁾, and Ammar Nasir* ⁽¹⁾

(1) horticulture department, faculty of agriculture, Tishreen university, Lattakia, Syria.

(2) professor, horticulture department, Second faculty of agriculture Idleb, Aleppo University, Aleppo, Syria.

(*Corresponding author: Ammar Nasir; E-Mail: ammarnaser129@gmail.com).

Received:13/06/2021                            Accepted: 18/10/2021

Abstract: 

This research was conducted in 2019 in Bahlolia village, in Lattakia province, to study the effect of gibberellic acid and zinc sulphat sprays on the improvement of production quality and quantity of Plum cultivar ” Jubileum” age of trees is (12) years,  the distance between trees is (4*4 m), trees were grafted on Prunus cerasia blanche, Four treatments were applied with 5 replications per treatment T₀:control,T₁:spraying with Gibberellic acid (40 PPM),T₂: spraying with zinc sulfate, T₃:spraying with Gibberellic acid and Zinc sulfate together. The results showed that spraying trees with Zinc sulfate and Gibberellic acid together led to an increase in the firmness of the fruits (5,96kg\cm²)  and reduce the fruit drop for (6,1%), as well as increasing total production (39.31kg) and  the ratio of total soluble solids and percentage of vitamin C in fruits, as it led to an increase in the percentage of Chlorophyll a,b in the leaves.

Key word: Plum, Gibberellic acid, Zinc sulfate, Chlorophyll a,b.

Full paper in Arabic: pdf

Ali  Izzo^(1)*, Hassan Khojah ⁽¹⁾, Abdel Mouhsen Marie⁽²⁾

(2) Department of Horticulture, Faculty of Agriculture, Tishreen University, Latakia, Syria.             

(2) General commission for scientific Agricultural Research (GCSAR), Syria.

(*Corresponding author: Ali Izzo; E-Mail: izzo198899@gmail. Com).

Received:29/08/2021                            Accepted: 19/10/2021

Abstract: 

The study was conducted in Al-Jamasah station, Tartous agricultural research center, Syria, during 2019 and 2020 seasons. Randomized Complete Blocks Design (RCBD) with three replications was used. Generation mean analysis method was used to study the type of gene action using some genetic indices of the six population of two individual hybrids of tomato (T2×T8) and (T8×T16). Single plant yield, number of days to first flowering, number of fruits per cluster, fruit weight, fruit length, fruit diameter, number of locules per fruit were studied. Average and close phenotypic and genotypic coefficients of variation values were detected for most of the studied traits. This indicates a high contribution of the genetic component in trait expression. Heterosis compared to the better parent in the first filial (F1) was accompanied by genetic Inbreeding depression in the second filial (F2). Most of the traits had average estimates of the degree of heritability in their narrow sense, which indicates that the additive and non-additive gene actions controlled their inheritance. The analysis of the average generations showed that the additive and dominance gene actions were significant for most of the studied traits, with superiority of the dominance gene action values. Epistasis gene action from the additive × additive and dominance × dominance types contributed in the inheritance of most of the studies traits.  The contrast between the two signs of the dominance and the epistasis gene actions from the type (dominance × dominance) in most of the traits indicated that it was from the duplicate type in majority of the studied traits and consequently selection could be conducted in later filials. while gene action was from the Complementary type for number of days to flowering in the second hybrid and number of locules per fruit in the first hybrid, so those traits could be improved by taking advantage of heterosis.

Key words: Tomato, yield, gene action, heritability, Genetic advance, Potence ratio.

Full paper in Arabic: pdf

Hussam Baroudi^*(1),Georgous Makhoul ⁽¹⁾,Waffaa choumane ⁽²⁾,and Khaldoun Tipa⁽³⁾  

(1) Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria

(2) Biotechnology center, Tishreen University, Lattakia, Syria.

(3) General Commission for Scientific Agriculture Research, Damascus, Syria.

(*Corresponding author: Eng. Hussam Baroudi. Email: hussambaroudi@gmail.com).

Received:9/07/2021                            Accepted: 4/11/2021

Abstract: 

This study was conducted during the seasons 2019 and2020 in Hadar, Al- Qunitera government. Thirty trees of Al- shami mulberry were sprayed with three growth regulators: Ethephon, IAA, and NAA, with three concentrations (50- 100- 200 ppm), and the control treatment, in order to study  the spray of leaves and branches with growth regulators on increasing the percentage of female catkins, number of fruits. The first spray was performed before the leaves fall  and the second before the buds swelling The results showed that the Ethephon  100 ppm was surpassed over the other treatments and over the control with sex ratio reached 12.49 female: 1 male and the percentage was reached to 92.58% for female catkins and 7.41% for male, followed by the NAA 100 ppm, whereas the sex ratio was 4.38 female: 1 male. The obtained results proved the effect of growth regulators on the length of the catkins. The IAA 100 ppm surpassed the other treatments with an average of 3.55 cm, followed by the IAA 200 ppm 1.71 cm. The IAA 100 ppm surpassed TE1, TE2 with an average of fruit length reached 3.65 cm and the treatment of IAA 50 ppm surpassed the control and the Ethephon treatments with an average of 2.04 cm. Regarding the fruit width, the Ethephon 200 ppm surpassed over the other concentrations reached to 1.69 cm. The fruits shape index was ranged from 0.52 with ethrel 200 ppm to 0.74 with NAA 50 ppm. The highest average of fruit weight was 6.52 g with IAA 50 ppm. In conclusion, this study demonstrated the positive effect of Ethephon and NAA on increasing the percentage of female catkins.

Keywords: Al-Shami mulberry, Growth regulators, Ethephon, NAA, IAA, Sex expression.

Full paper in Arabic: pdf

Hassan Khojah*⁽¹⁾

(1) Department of Horticulture, Faculty of Agruicltre,   Tishreen University, Latakia, Syria.

(*Corresponding author: Dr. Hassan Khojah, E-Mail: Dr.hassan.khojah@gmail.com.).

Received:4/07/2021                            Accepted: 4/11/2021

Abstract: 

The research was conducted at Al-Jammasah Research Station in Tartous in 2019 to study the effect of pruning and spraying with some organic extracts on the productivity and quality of fruits and marketable seeds of L2 tomato line. Factorial experiments using randomized complete block design with three replications were implemented. Results indicated that the combinatorial treatments two stems pruning with Amalgerol spraying, followed by two stems pruning with Volomene spraying significantly outperformed all the other treatments in the productivity trait. Results also showed the superiority of the one stem pruning with Amalgerol spraying treatment over all of the other treatments in the average fruit weight, number of marketable seeds and weight of a thousand seeds. The two stems pruning without spraying treatment was significantly superior to the number of fruits per plant. The treatment of spraying with Amalgerol was significantly superior to the Volomene spraying and Control treatments in all the studied traits, except for the number of fruits per plant, where the control treatment outperformed the two extracts spraying treatments. The pruned plants on one stem showed significant superiority over the two stems in average fruit weight, number of marketable seeds and 1000 seeds weight. The pruned plants on two stems were significantly superior in the plant productivity and number of fruits per plant.

Keywords: Tomato, organic extracts, stem pruning, productivity, seed quality.

Full paper in Arabic: pdf

Hanan jnad ^*(1), Georges makhoul ⁽¹⁾, Abd-Alaziz boeissa ⁽¹⁾, and    Dr.Ali Elkhateeb⁽²⁾

(1) Tishreen University, Agriculture College, Lattakia ,Syria.

(2) General Commission Agriculture Scientific Research, Lattakia,

(*Corresponding author: Hanan jnad.Email: hgalaxy7@gmail.com)

Received:   9/04/2021                  Accepted: 20/10/2021

Abstract: 

The research was carried out in two successive seasons (2020-2021) on Valencia trees grafted on sour orange were planted in calcareous soil in Al-Rafia village in Al-Bahloulia sub-district,to evaluate different sources of organic matter on yield and some qualitative and quantitative characteristics of fruit. The trees were 17 years old and were planted 5x5m apart. The following treatments were used: mineral fertilizer as control, Compost(organic fertilizer of plant origin) Poultry manure and Cow manure(organic fertilizer of animal origin),Humic compounds. The added quantities were determined on the basis of the standardization of the effective nitrogen ratio(1000 g/effective N/tree).Spraying with Citric acid at a concentration of (1g/L) was used. The results showed the superiority of the mineral fertilizer treatment and organic fertilizer with poultry manure in production as average for the two seasons(150.2-148.6)kg, respectively, and for the specifications of fruit, the treatment of mineral fertilization in terms of fruit weight was superior over the rest of the studied treatments (243.2)g while the poultry manure treatment in the percentage of juice by weight(46.13)% and Vitamin C (57.39)mg/100ml juice and Total soluble solids (11.28)% as an average for both seasons on the studied treatments.

Key words: Valencia, Citric acid, Cow manure, poultry manure, Compost, Humic compounds.

Full paper in Arabic: pdf