Introduction of cotton hybrids and promising cultivars in Moghan region, Iran

Recognition and using of appropriate cultivars in production process and quantitative and qualitative improvement of crops yield have a special impact. In this research, nine imported cotton genotypes including hybrids and promising cultivars along with Varamin as conventional cultivar were evaluated based on randomized complete block design with four replications in Moghan region for one year. In each plot, cotton genotypes were planted in six lines with 8 meter length at intervals of 20 × 80 cm. Quantitative traits such as plant height, boll number and weight, one week before harvest and yield, early maturity were recorded after harvesting. G-43347 and G-43259 cultivars with average yield of 4785 and 4625 kg/ha, respectively had the highest yield and G-43347 and Opal cultivars with 84 and 83% early maturity, respectively were the most early maturing cultivars. Therefore, G-43347 and Opal cultivars would be suitable candidates to be replaced for current conventional cultivars in Moghan region. Varamin cultivar as check 71% early maturity and yield of 3992 kg/ha could not compete with new studied cultivar emphasizing using G-43347 and Opal cultivars in this region.