【摘要】 国审小麦新品种小偃22是常规育种和远缘杂交有机结合而育成的,通过远缘杂交技术,导入长穗偃麦草的优质、抗病、抗逆多个优异基因,实现了种属间优异性状的有效结合,在一定程度上成功地解决了高产与稳产、高产与优质之间的矛盾,将高产、优质、多抗、广适几个主要目标性状结合起来,具有多穗多粒、结实性突出、品质优良、增产潜力大、抗逆性强、适应性广等突出优点,产量三因素在较高水平上达到协调。小偃22从2000年以来长期是陕西省主栽品种,是陕西省第六次更新换代的骨干品种。笔者对小偃22来源、特征特性、创新点,应用情况,优质高产栽培规程进行了系统研究和总结,并对更新换代大品种的特点和培育和产业化推广经验进行了探讨。更多还原

【Abstract】 The new wheat variety Xiaoyan22,which was approve by Shaanxi province and by nation,and possess many outstanding advantages,such as:Poly-spike and poly-grain,good fructification,high quality,high yield,strong resistance and wide adaptability etc.In addition they have been the most primer wheat variety planting in Shanxi province since 2000.The origin,main characteristic,innovation,utilization,culture planting techniques,breeding and industrial extension experience of Xiaoyan22 are systematically studied and summarized in this article.更多还原