【摘要】 小偃 2 2是选用具有多种优良性状的小偃 6号、小偃 10 7和著名的抗病材料 775 - 1为亲本 ,采用复合杂交 ,以常规系谱法为主选育而成的一个小麦新品种。它属于中间偏多穗类型 ,产量三因素在较高水平上达到协调 ,具有株型结构好、结实性突出、增产潜力大、品质优良、综合抗病性好、抗旱耐寒、抗倒性强、适应范围广等优点 ,1998～ 2 0 0 0年累计种植 89.3万 hm2。更多还原

【Abstract】 Xiaoyan 22 was bred by composite crossing,using local released varieties Xiaoyan No.6,Xiaoyan 107,and a famous disease resitance line 775 1 as its parent.The method was a well combination of conventional breeding method and distant hybridization,and mainly used pedigree method.The model of yield structure of Xiaoyan 22 was midium number spike type,its three yield facts achieved harmony on a high level.In some extent,This variety has solved quite well the contradictions of high yield with steady yield,high yield with good quality,and got together some main aimed qualities,such as high yield potential,stability,wide adaptation,tolerance to cold and drought,disease resistance,etc.Therefore,Xiaoyan 22 quickly became the main plant variety in a short time,its harvested area in 1998-2000 was 89.3 ten thousand hm 2.更多还原