分析国审 ‘陇育5号’小麦丰产性、抗逆性、广适机理及推广策略,以期为北部旱地小麦高效育种和品种推广提供借鉴。利用多年多点国家北部旱地、甘肃省陇东片区域试验及高产示范资料,对冬小麦新品种‘陇育5号’的性状进行比较分析。‘陇育5号’多点区域试验、生产试验产量平均为4922.54 kg/hm²,比对照品种平均增产13.28%,增产点（次）率89.97%。有效穗数597.0万/hm²,收获指数39.6%,旱地产量潜力达6399.0 kg/hm²。成穗多与收获指数较高是实现‘陇育5号’高产潜力的基础,抗寒抗旱抗病、耐生育后期高温、粒重变异小是其广适性和大面积推广的重要保障。‘陇育5号’丰产性强,抗寒抗旱、综合抗逆性好,品质优良,适应范围广。在推广应用中,应采取项目推广方式,订单式原种生产,合同式良种繁育,“科研单位+地方政府+种业企业+示范农户”四位一体的推广模式。

By analyzing the ability of high-yield, stress-resistance, wide adaptability of the national approved wheat ‘Longyu No.5’ and its promotion strategy, the study aims to provide references for high-efficiency breeding and variety promotion of dry land wheat in north China. The characters of new winter wheat variety ‘Longyu No.5’ were analyzed by using the regional experiment and high yield demonstration data of multiple points in north China’s dry land area, including Longdong of Gansu Province. The average yield of ‘Longyu No.5’ was 4922.54 kg/hm², which was 13.28% higher than that of the control variety, and the yield increasing point (times) rate was 89.97%. The effective ear number was 5.97 million/hm², the harvest index was 39.6%, and the yield potential in dry land was 6399.0 kg/hm². In general, more ears and higher harvest index are the basis of realizing high yield potential; cold resistance, drought resistance and disease resistance, high temperature tolerance at later growth stage and small variation of grain weight are the important guarantee for wide adaptability and large-scale extension of ‘Longyu No.5’. In the promotion and application of the variety, the model should include project-based promotion, order-based seed production, contract-based seed breeding, and efforts from research units, local governments, seed industry enterprises and demonstration farmers.