The Effect of Plant Density on the Morphological and ‎Production Traits of Some Quinoa (Chenopodium quinoa ‎Willd) Varieties

Entessar Al Jbawi*(1) Manal Othman(1) Doaa Homsi(1) Nahla Al Mahmoud(1) Entessar Hasan(1) Thamer Al Huniesh(2) Mu’ad Abdu-Latif Kiyyam(3) and Mohammad Ali(2)

(1). Sugar Beet Research Department, Crops Research Administration, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.

(2). Crops Research Administration, GCSAR, Damascus, Syria.

(3). Faculty of Agriculture, Jerash University, Jerash, Jordan.

(*corresponding author: Dr. Entessar Al Jbawi. E-Mial:dr.entessara@gmail.com).

Received: 10/03/2020                               Accepted: 29/05/2020

Abstract

A field experiment was conducted at Karahta Agricultural Station, General Commission for Scientific Agricultural Research (GCSAR), during 2018 season, to study the effect of six plant densities (10, 15 and 20 cm between plants within the row; 30 and 50 cm between rows) and five quinoa varieties i.e Giza, Titicaca, Red Carina,  Q26 and NSL-106398) on the morphological and production traits. A factorial trial was executed according to Randomized Completely Block Design (RCBD) with three replicates. The results exhibited significant differences between plant densities of all studied traits. In terms of varieties, there were significant differences in plant height (cm), grain yield (Kg/ha) and bio-yield (Kg/ha), where the highest values were achieved at low densities. But there was a significant effect of the interaction between plant densities and varieties on bio-yield. The study recommends to grow quinoa using 100, 133 and 200 thousand plants per hectare, but the distance between should be 50 cm, to get the best morphological and production traits. Also, Red Carina and Titicaca varieties are recommended to be grown to get the highest grain yield (2747 and 2818 Kg/ha) and biological yield (6702 and 6561 Kg/ha) respectively, as compared with the other varieties.

Key words: Quinoa, Plant densities, Varieties. 

Full paper in Arabic: PDF

Comparison of Production and Quality Traits of Fodder Beet ‎‎(Beta vulgaris var Crasssa) under two Winter Sowing Dates in ‎Homs Governorate

Julnar Mansour(1) Entessar Al-Jbawi*(2) Ahmad Muhanna(1) and Faddi Abbas(3)

(1). Faculty of Agriculture, Crops Department. Al Baath University, Syria.

(2). Sugar Beet Department, Crops Research Administration, General Commission for Scientific Agricultural Research, (GCSAR), Damascus, Syria.

(3). Homs Research Center, (GCSAR), Damascus, Syria.

(*Corresponding author: Dr. Entessar Al JBawi. E-mail: dr.entessara@gmail.com and dr.entessara@gcsar.gov.sy).

Received: 01/03/2020                              Accepted: 22/03/2020

Abstract

The field experiment was conducted at the General Commission for Scientific Agriculture Research (GCSAR), Homs Research Center during 2017/2018 and 2018/2019 seasons, to compare production and quality traits of five monogerm fodder beet varieties, i.e. Caribou, Varians, SV Four 16, Tarine and Lipari. The experiment was sown in winter (mid of February and mid Mars). A split plot design was used, with three replicates. The results showed the superiority of mid-February sowing date  to get higher values of production traits (root and shoot yields) for all studied varieties. While sowing fodder beet in mid-Mars is better if the purpose was to reserve the crop as dry forage and give it later for the animals, because this date gave higher dry matter. The results also showed that the monogerm variety Lipari was the best for most of the production and quality traits as compared with the other varieties.  The study recommend growing fodder beet in mid-February to mid-Mars under Homs conditions, but after conducting a complementary researches concerns the other agricultural treatments as, lifting time, plant spacing,  rate of fertilizer and applications …etc, and also to test more monogerm and multigerm new varieties from different sources.

Key words: Fodder beet, Sowing date, Production traits, Quality traits, Varieties.

Full paper in Arabic: PDF

Evaluation Production, Quality and Morphological Traits of ‎Summer Fodder Beet (Beta vulgaris L. sub Crassa) Under ‎Different Levels of Nitrogen Fertilizer

Entessar Al Jbawi*(1) Ahmad AlAli(2) and Ahmad Fahd AlRaei(2)

(1). Sugar Beet Research Department, Crops Research Administration, GCSAR, Damascus, Syria.

(2). Hama Agricultural Research Center, GCSAR, Damascus, Syria.

(*Corresponding author: Dr. Entessar Al JBawi. E-Mail: dr.entessara@gmail.com).

Received: 10/03/2020                               Accepted: 01/04/2020

Abstract

A field experiment was conducted at Hama Research Station, General Commission for Scientific Agriculture Research (GCSAR), during 2016/2017 and 2017/2018 seasons, to compare production, quality and morphological characteristics of monogerm fodder beet variety, i.e. Jamon under four levels of nitrogen fertilizer (20, 80, 120 and 180 pure units of N, urea 46%/ha). The experiment was sown in summer during September. A randomized complete block design (RCBD) was used with three replications. The statistical analysis of both seasons exhibited a significant effect of the nitrogen fertilizer (N) on all of the production traits (shoot yield (ton/ha)) and morphological traits (shoot weight per plant (g), and root length and diameter (cm)). Also, there were no significant differences in quality traits (dry matter in root and shoot (%) and sucrose (%)). The least significant difference test (LDS0.05) showed the possibility of adding 80 pure units of Urea/ha to get the best production, quality and morphological traits.

Key words: Fodder beet, Nitrogen fertilizer, Production traits, Quality traits, Morphological traits.

Full paper in Arabic: PDF