汉中市下辖１０县１区，属亚热带与暖温带过渡地区，适宜多种植物生长，病虫种类也相应较多。２０世纪６０年代进行了水稻种子产地检疫试验示范，８０年代初开始全面实施水稻、小麦种子产地检疫，９０年代又相继实现了玉米、油菜、大白菜、萝卜等种子的产地检疫。产地检疫为调 Hanzhong City under the jurisdiction of 10 counties 1 area, is a subtropical and warm temperate transitional areas, suitable for a variety of plant growth, pest species are also more. In the 1960s, a pilot demonstration of the origin of rice seeds was carried out. In the early 1980s, the quarantine of the origin of rice and wheat seeds was fully implemented. In the 1990s, corn, rape, Chinese cabbage and radish seeds were successively quarantined. Quarantine for the transfer of origin