IRRIGATION BLADES ON THE YIELD AND QUALITY OF COTTON SEEDS PRODUCED IN ARENITO CAIUÁ REGION

Abstract

In order to reach the growing demand of cotton production, it is necessary to adopt high-quality seeds. To obtain quality seeds, factors such as the amount of water supplied to the plant and the climate of the region must be considered. Thus, this work aimed to evaluate the effect of different water depths on the production of cotton seeds produced in the Caiá sandstone region. Cotton seeds were sown and, after planting, 4 water depth treatments were applied: 0 (control, without irrigation), 50, 100 and 150% of crop evapotranspiration (ETC), being maintained until the end of the crop season. The cotton plumes were harvested, their weight was measured, they were delinted manually and the weight of the seeds was measured. The seeds were subjected to moisture content, germination and vigor tests. The different water depths applied to the cotton plants have an effect on cotton productivity, with water depths of 50 and 100% ETC providing greater productivity, followed by water depths of 150% and 0% ETC, respectively. The absence of irrigation causes a significant reduction in cotton and seed productivity. The physiological quality of the formed seeds is not affected by the different water depths applied to the plants during seed formation and development. The Arenito Caiuá region presents several challenges for seed production.

Keywords

• Gossypium spp
• Seed quality
• Seed vigor
• Irrigation
• Low altitude region