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.

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


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