THE AGROECOLOGICAL IMPACT OF DIFFERENT SOWING DATES AND ROW SPACING APPLICATIONS IN QUINOA (CHENOPODIUM QUINOA WILLD.)

Similar to all plants, the region of cultivation and sowing date of the quinoa (Chenopodium quinoa Willd.)plant leads to variations in phenological periods, affecting grain yield (GY) and quality.The present study aimed to determine the adequate sowing date and row spacing for Q-52 quinoa variety, which is known to be suitable for Mediterranean climate conditions, in Kahramanmaraş province.For this purpose, three different row spacing distances (Namely, 20, 40 and 60 cm) were adopted with four sowing dates at 15-day intervals between March 15 and May.The study findings demonstrated that the plant emergence period was 5.0-21.0DAS, the budding period was 19.0-38.0DAS, the 50% of flowering period was found as 44.7-67.3DAS, the grain-filling period (GF) was fixed as 3.2-31.0DAS, the growth period was realized as 88.0-131.7 DAS, the GY was calculated as 9.8-323.9kg da‫,¹-‬ and biological yield (BY) was determined as 70.8-528.5kg da‫.¹-‬Considering the effects of the temperatures on the growth and development of plants, it was concluded that it would be adequate to sow the crops during early or late April.The analysis of the ideal row spacing demonstrated that the highest grain and plant yield was obtained at 20 cm spacing.