江苏大丰县沿海地区,滨临黄海。早春温度回升缓慢,秋季降温较早,常年秋桃占50%左右,有的年份多达60%以上。秋桃的铃重受不同年份后期温度的影响波动较大,晚秋桃仅及伏桃的50%左右,严重影响棉花生产。研究该地区秋桃发育特性,对我省沿海棉区实现高产稳产具有重要的意义。 Dafeng County, Jiangsu coastal areas, Binhai Yellow Sea. Early spring temperature rise slowly, fall earlier, perennial peach accounted for about 50%, and some as many as 60%. The boll weight of autumn peach fluctuated greatly due to the influence of temperature in later years of different years, and only about 50% of peach peach in late autumn, which seriously affected the cotton production. Studying the development characteristics of autumn peach in this area is of great significance to the realization of high and stable yield in the coastal cotton area of ​​our province.