协优赣7号,原名协优49,是江西省赣州地区农科所于1985年春在海南岛用协青早不育系(代号:回153)与测49(代号:B61,即测64-7-49)配组,同年兴国县种子站试验制种,赣州地区种子站组织示范推广。该组合的选育采用科研、种子、生产部门和试验、示范、推广相结合的方法育成的税型杂交早 Xieyou Gan 7, formerly known as Xieyou 49, is a pilot plant in Ganzhou Prefecture of Jiangxi Province in the spring of 1985 in Hainan Island with early blue sterile line (code: back to 153) and measured 49 (code: B61, measured 64- 7-49) with the same year Xingguo seed station seed production test, demonstration and promotion of seed stations in Ganzhou. Breeding of the combination of scientific research, seeds, production departments and experimental, demonstration, promotion of a combination of methods bred early hybrid tax