‘Nongtian No.2’ is a new potato variety developed by crossing Tian99-5-4 as female parent with‘Tianshu No.7 ’as male parent．It is of late maturity．Its total growing period is about 121 days ．Its tuber is of round shape with light yellow skin，yellow flesh and shallow eyes．It produces 3.7 tubers per hill．Its marketable tuber weight percentage reaches 90.5%．It can yield about 22.5 t·hm-2．It is suitable to be planted in Tianshui，Linxia，Dingxi，Pingliang and Longnan of Gansu Province.
Abstract：‘Nongtian No.2’ is a new potato variety developed by crossing Tian99-5-4 as female parent with‘Tianshu No.7 ’as male parent．It is of late maturity．Its total growing period is about 121 days ．Its tuber is of round shape with light yellow skin，yellow flesh and shallow eyes．It produces 3.7 tubers per hill．Its marketable tuber weight percentage reaches 90.5%．It can yield about 22.5 t·hm-2．It is suitable to be planted in Tianshui，Linxia，Dingxi，Pingliang and Longnan of Gansu Province.
