安徽常年棉花播种面积约500万亩.据1968～1978十年统计资料,沿江棉区(宣城、巢湖、安庆等地区) 棉田面积占全省总面积的28%,而产量约占总产量一半.这个棉区棉田集中,气候温和,雨水充沛,土壤肥沃,劳力充足,一年两熟,棉粮套种(或连作),但平均每人占有耕地面积较少.如以扩大棉田面积来提高产量,可能性不大,而以提高单产增加总产,则不仅可行,并有潜力可挖.因而选育适合生产发展的棉花良种,乃是低投入、高产出、能显著增产的重要措施. According to statistics from the 1968-1978 decade, cotton fields in the areas along the Yangtze River (Xuancheng, Chaohu and Anqing) occupy 28% of the total area of ​​the province, while the output accounts for about half of the total output The cotton fields are concentrated, with mild climate, abundant rainfall, fertile soil, abundant labor, two crops a year, cotton intercropping (or cropping), but the average per person occupies less arable land. It is not only feasible but also has the potential to be explored.It is therefore an important measure to increase the yield of cotton with low input, high output and high yield.