江苏省盐城市是集中产棉区之一,又是重要的优质棉基地,全市种植面积较大的东台、大丰、郊区三县都是优质棉基地县,年种植面积达169万亩,占全市300万亩棉田面积的56.3%,因此,建立建全优质棉基地县的棉花良种繁育体系,防止品种退化,保持优良种性的工作至关重要。根据这个实际情况, Yancheng City, Jiangsu Province, is one of the concentrated cotton producing areas and an important high-quality cotton base. The Dongtai, Dafeng and suburban counties with large planting areas throughout the city are all high-quality cotton base counties with an annual planting area of ​​1.69 million mu, accounting for The city’s 300 million mu of cotton area of ​​56.3% of the area, therefore, the establishment of high quality cotton base counties cotton seed breeding system, to prevent the degradation of varieties, to maintain the good nature of the work is essential. According to this fact,