临汾号小麦品种主要性状演变及育种目标分析

山西省农业科学院小麦研究所先后育成 30多个小麦品种 ,产量几上台阶 ,主要农艺性状发生了明显变化 ,大体趋势是冬性强度减弱 ,株高明显下降 ,收获指数大幅度提高 ,产量潜力明显增大 ,品质性状呈现出“高—低—高”的变化趋势。从临汾号小麦品种的演变规律及社会需求来看 ,今后小麦育种目标应为多抗、高产稳产、优质高效益综合优异类型

Succession of the Main Agronomic Characters of Linfen Series Wheat Varieties and the Breeding Objectives

With the replacement of Linfen series wheat varieties, their main agronomic characters had changed obviously: the winterness weakened, the height decreased, the harvest index increased, and the yield potential increased. The quality characters rendered a high-low-high trend, which indicated that the combinations of high yield and good quality were considered for the breeding of Linfen series wheat varieties in the breeding procedure during the seventh five-year plan. In the view of the succession and social requirement of Linfen series wheat, the breeding objective in the future should be the integration of multi-resistance, high and stable yielding, good quality, and high efficiency.