تأثير مواعيد الزراعة والكثافات النباتية في بعض المؤشرات المورفوفيزيولوجية والإنتاجية لـصنفين من الذرة السكرية Zea mays var saccharata)) تحت ظروف المنطقة الساحلية

Abstract

A field experiment was carried out in the Al-Basit area of Latakia Governorate (62 kilometers north of the center of Latakia) during the 2023 agricultural season. With the aim of determining the date and optimal plant density for two varieties of sugary yellow corn under coastal zone conditions, using three planting dates (May 16). June 1 and June 16), three densities (50,000, 25,000 and 35,000) plants/ha and two varieties of sugary corn (Sugar King). Golden Sweet). The experiment was carried out according to a complete randomized block design. By arranging the split cuttings twice and three times, the most important results were summarized as follows: Most of the growth characteristics and yield were significantly affected by plant density, planting time, and the interaction between them, as the results showed the superiority of the Sugar Kink variety under conditions of density (25,000 plants/ha) planted on the second date (June 1), and the best results were recorded.For (plant height, height of the barn, evidence of leaf area and length of the barn), which amounted to (187.55 cm, 86.17 cm, 1.74, 24 cm (respectively) compared to the second variety and the results of the first and third dates, and compared to other densities (50,000 and 35,000 plants/ha) and the effect of the two dates (the first and third), and compared to the Golden Sweet variety.Therefore, we can recommend using the Sugar Kink variety at a density of 25,000 plants/ha and planting on the second date to achieve the best results.