我场地处关中东部原三门峡库区,是一个机械化程度较高的国营农场,担负着陕西省油料生产的任务。油料作物以油菜为主,长期以来主要品种是“跃进”。应品种虽具有角大、粒大、抗病、丰产性能较好,但抗寒性较差、茎秆较软、株形松散、晚熟、易裂角,不适于机械化栽培要求。我们于1972年深入3000余亩大田根据要求选择自然变异单株,经两年单株选择,一年混合选择,育成了甘兰型油菜新品种“7211”。1977年在我省关中地区已种植8万余亩,引种到山东、河南等省,表现较好,亦已大面积推广。 My site is located in Guanzhong eastern Sanmenxia reservoir area, is a high degree of mechanization of state-owned farms, Shaanxi Province, responsible for the task of fuel production. Oil-based rapeseed mainly long-term main species is “leap forward.” Although the varieties have a large angle, grain size, disease resistance, high yield performance better, but less cold hardiness, stalks softer, loose, late ripe, easy to crack angle, not suitable for mechanized cultivation requirements. We went deep in 1972, more than 3,000 acres of field selection according to the requirements of natural variation of individual plants, after two years of plant selection, a year of mixed selection, bred a new type of Brassica napus “7211”. In 1977, more than 80,000 mu of trees were planted in the Guanzhong area of ​​the province and introduced to Shandong and Henan provinces. The performance was good and it has been popularized in a large area.