1现状《中华人民共和国种子法》(以下简称《种子法》)实施以来,勉县在主要农作物品种管理上取得了很大成效,但是现状和存在的问题也不容乐观。我县现行品种管理工作依然存在部分问题。1963~2013年间,国家审定、陕西省审定(陕西省引种)适宜在勉县种植的“三杂”(杂交水稻、杂交玉米、杂 Since the implementation of the “Seed Law of the People’s Republic of China” (hereinafter referred to as the “Seed Law”), Mianxian has made great achievements in the management of major crop varieties. However, the status quo and existing problems are not optimistic. Some problems still exist in the management of current varieties in our county. From 1963 to 2013, the national examination and approval of Shaanxi Province (introduced in Shaanxi Province) were suitable for planting “three hybrids” (hybrid rice, hybrid corn, miscellaneous