The Application Effect of GA3 on Plant Growth, Yield and ‎Quality Attributes of Tomato (Lycopersicom esculentum Mill.) ‎

Kamal Krishna Mistry*(1) Kazi Farhad Iqubal(2) and Shyama Prasad Bapari(3)

(1). Department of Agriculture and Environmental Science, Akbar Ali Khan Technical Institute (Education Complex) under the Ministry of Education, Comilla-3517, Dhaka

(2). Department of Environmental Science, State University, Dhanmondi, Dhaka, Bangladesh.

(3). Ministry of Education, Government of the People’s Republic of Bangladesh, Dhaka, Bangladesh.

(*Corresponding author: Dr. Kamal Krishna Mistry. E-Mail:

Received: 13/04/2020                               Accepted: 22/05/2020


This study was conducted at the ‘Integrated Farm’ of the International Anjel Association, Voluntary Organization of Japan, Konabari, Gazipure during the period of 10 November-30 January 2018, Bangladesh to find out the better performance of GA3 treatments doses on tomato variety Ratan. Data were collected on plant height, leaves number, fruits number per plant, fruit weight per plant, ascorbic acid and total soluble solids (Brix) regarding five levels of gibberellic acid viz. 20  ppm (T1), 40 ppm (T2), 60 ppm (T3), 80 ppm (T4) and 100 ppm (T5) beside T0 which represents the control. The experiment was arranged in a randomized complete block design with three replications. Application of GA3 at 100 ppm caused an increase in plant height (50.30 cm), leaves number (50), fruits number (29.50 per/plant), fruit weight (1.52 kg/plant),  ascorbic acid (1.80 mg/100gm) and total soluble solids (4.10 Brix) among the different treatments of GA3.

Keywords: Gibberellic acid (GA3), Tomato, Yield, Quality, Bangladesh.   

Full paper in English: PDF

Effect of Plant Density and Nitrogen Fertilization on Some ‎Morphological, Physiological and Productivity Characteristics ‎of sorghum bicolor L.‎

Mohamed Abd Alaziz(1) and Fatema Antar*(1)

(1). Crops Department, Faculty of Agriculture, Tishreen University, Latakia, Syria.

(*Corresponding author: Eng. Fatema Antar. E-Mail: 

Received: 28/11/2018                               Accepted: 06/02/2019


The research was carried out in the coastal area at Bauqa Farm, and at the laboratories of Faculty of Agriculture, Tishreen University, during the season 2018 in order to study the effect of plant density and nitrogen fertilization and their interaction on some morphological, physiological and productivity parameters of sorghum plant to obtain the highest grain yield. Jumbo variety  was used which obtained from General Organization of Seed Multiplication in Latakia. The design of the experiment was Randomized Completely Block Design (RCBD) with the arrangement of split plot design with three replicates. The density treatments were distributed in the main plots (3.33, 5 and 10 plants/m2), while nitrogen fertilization levels were allocated in the sub plots (200, 300 and 400 kg/ha) in addition to the control treatment without nitrogen addition. The density of 10 plants / m2 and the  nitrogen fertilization of 300 kg/ha gave the highest grain yield (ton/ha) under the conditions of the experiment. While the density of 3.33 plants/m 2 and the nitrogen addition of 400 kg/ha gave the  highest length of the plant number of leaves/plant, number of grains/rosset and weight of 100 seeds. The grain yield correlated positively and significantly with rosset length (r=0.541**), grains number (r=0.509**),  area index (r=0.502 **) and the rosset weight (r=0.456 **). Thus it is possible to improve the productivity by improving the mentioned traits above due to the positive correlation with them.

Key words: Sorghum bicolor, Plant density, Nitrogen fertilization, Yield, Morphological traits.

Full paper in Arabic: PDF

Combining Ability Estimation of Earliness Traits and Yield Components in Some Barley (Hordeum vulgare L.) Genotypes

Saleh Saleh(1) Mohammed Shafik Hakim(1) Abdullah Al-Yousef*(2) and Ahmed Shams ElDien Shaaban(3)

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

(2). Aleppo Agricultural Research Center, General Community for Scientific Agricultural Research (GCSAR), Damascus, Syria.

(3). Department of Biotechnology Engineering, Faculty of Technical Engineering, University of Aleppo, Aleppo, Syria.

(* Corresponding author: Dr. Addullah Al-Youssef. E-Mail:

Received: 19/03/2018                                Accepted: 19/04/2018


The research was conducted at Al_Sfireh location in Aleppo during 2015/2016 and 2016/207 seasons to estimate general combining ability GCA and specific combining ability SCA for seven genotypes of barley. Three of them were local: Arabi Aswad (P1), Arabi Abyad (P2) and Furat 3 (P3), and four entries were: Alanda-01 (P4), Rihan-03 (P5), Arizona (P6) and Avit (P7). Half-Diallel cross system were preformed between parents at first season. In the second season, parents and hybrids were planted to study days to heading (DTH), days to maturity (DTM), fertile tillering number per plant (FT), grain number per main spike (GN) and thousand kernel weight (TKW). The parents p1 and p3 showed a high general combining ability for the most studied traits.  The hybrid (P1×P3) had significant value for SCA effects in most studied traits. The hybrids: (P4×P6, P5×P7, P4×P5) had significant value for SCA effects for (GN). Variance component of GCA and SCA were highly significant, and this indicates to the importance of additive and non-additive gene action in inheritance of the studied traits. The ratio of GCA/SCA was less than 1.0 for DTH, DTM and TKW and this indicates to importance of dominant and over dominant genes in inheritance of these traits. Whereas the ratio was bigger than 1.0 for FT and GN and this indicates to importance of accumulated genes in inheritance of these traits

Key Words: Half-Diallel cross, Combining ability, Earliness, Yield, Barley.

Full Paper in Arabic: PDF

Effect of Different Irrigation Methods on Water Use Efficiency of Maize in Homs Governorate

Bassam Oudeh*(1) Boshra Khozam(1) Abd-Al-Karim Jerdy(1) Nedal Khanem(1) and Tallal Al- Abdo(1)

(1). Mokhtaria Research Station, Agricultural Scientific Research Center in Homs, General Commission for Scientific Agricultural Research (GCSAR), Homs, Syria.

(*Corresponding author: Dr. Bassam Oudeh. Mobile: 0988284819,

Received: 06/06/ 2015                                     Accepted: 07/08/ 2015


The study was carried out using different irrigation methods i.e. sprinklers with different spaces 9×9 m, and 12×9 m, drip irrigation GR, surge flow and the traditional surface irrigation as control, at Mokhtaria Research Station, Agricultural Research Center in Homs, Syria, started from 2008 to 2012 seasons. The results showed that using irrigation methods (sprinklers 9x9m, sprinklers 12x9m, drip GR, surge flow drainage 0.75 L/sec/row and surge flow drainage 0.50 L/sec/row) gave an average of gross water consumption as follow: 4313, 4717, 3592, 4617 and 5190 m3/ha, respectively, while the percentage of  irrigation water saving was (49.2, 45.5, 56.5, 51.1, and 45.1%) respectively, and the yield was (6756, 6258, 7278, 6088, and 5818 kg/ha), respectively, and the increase in yield compared with control was (71, 58, 84, 54, and 47%), respectively, gross water use efficiency was (1.57, 1.33, 2.03, 1.32, and 1.12 kg/m3/ha), respectively. The average of gross water consumption of the traditional surface irrigation was 9447 m3/ha with a yield of 3956 ton/ha. The results above showed that drip irrigation (GR) was the best in yield and saving irrigation water, and was the highest in gross water use efficiency as compared with other irrigation methods, and it is recommended to be executed as modern technique for irrigation of maize crop in Homs Governorate.

Key words: Water use efficiency, Different irrigation methods, Maize, yield.

Full paper in Arabic:تأثير استخدام طرائق ري مختلفة على كفاءة استخدام مياه الري لمحصول الذرة الصفراء التكثيفية بمحافظة حمص

Estimation of Some Selection Indices in Summer Squash (Cucurbita pepo L.)

Abd Al Mohsen Khalil Marie(1)

(1). Horticulture Research Administration, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.

(Corresponding author: Dr. Abd Al Mohsen Khalil Marie.
E-Mail :

Received: 07/09/ 2015                                     Accepted: 29/11/ 2015


An experiment was carried out at Altyba Research Station, General Commission for Scientific Agricultural Research (GCSAR), Syria, during 2007and 2008 seasons, in randomized complete block design (RCBD) with three replications. Phenotypic correlation and path analysis of 16 agronomic characters were studied for 36 F1 hybrids and their 9 parents of summer squash (Cucurbit apepo L.), to estimate some selection indices. The results showed high significant positive correlation between  plant yield and fruit number per plant, female flowers% and average fruit weight (r=0.875**, 0.591**, 0.416**), respectively. While high significant negative correlation was detected between plant yield and days and nods number to first female flower (r=-0.417**.-0.440**) respectively. The path analysis revealed that number of fruits/plant had maximum direct effect (0.8540) on plant yield, followed by average fruit weight (0.3590). Female flowers% had the greatest indirect effect on plant yield, indicating these characters can be used as selection indices for yield improvement of summer squash.

Key words: Correlation coefficient, Path analysis, Yield, Selection indices, Summer squash.

Full paper in Arabic:

تقدير بعض الأدلة الانتخابية في قرع الكوسا(.Cucurbita pepo L)