【摘要】 西北地区春小麦经过3个阶段5次较大规模的更换,生产应用品种在株型结构、产量水平、营养品质、生育期等方面得到了较大改进。但目前在品种改良方面仍存在产量艰难爬坡、优质专用品种缺乏、抗锈遗传背景狭窄等问题。通过分析总结其特点,提出了以建立国家小麦改良分中心为努力方向,以加速优异资源的引进和有效开拓、继续加强常规杂交育种工作、高度重视生物工程育种、加强协作、实行穿梭育种等为核心内容的育种策略。更多还原

【Abstract】 In the past 50 years, spring wheat of northwest had got large success through three stages and five times change. During this duration,the plant type was improved greatly,the yield level was remarkable increased, and the growing period of new varieties became shorter than old ones. After analyzing its special feature and current problem, the five breeding strategies about spring wheat in the future were put forward in this paper:①build wheat breeding sub-centre in northwest,②import and create new germplasm,③continue strengthen conventional breeding,④pay more attention to biotechnology,⑤practice shutter breeding.更多还原