利用品种资源信息管理系统分析了７４个品种与热带种、割手密、大茎野生种和印度种等的亲缘系数及其与品种种性的关系。野生种血缘高低及野生种血缘与热带种血缘的比例大小对品种的抗逆性和适应性有较大的影响，而热带种血缘高低与品种的糖分高低和产量潜力并无比较明确的关系。 The genetic relationship of 74 cultivars, tropical species, cutwort, big stem wild species, Indian species and their relationship with cultivars of cultivars were analyzed by using variety resource information management system. The level of wild blood relatives and the proportion of wild blood relatives and tropical blood relatives have a greater impact on the resistance and adaptability of varieties. However, there is no clear relationship between the relatives of tropical blood relative to the sugar level and the yield potential.