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在黄淮冬麦区旱作条件下对20个旱地小麦品种进行了筛选试验。试验结果表明:产量超过6000 kg/hm~2的品种有7个,即西农928、长6359、洛旱6号、衡136、西农219、洛旱7号和长旱58;其高产经济性状指标为成穗数(420.00~485.10)万穗/hm~2,千粒重45.96~50.01 g,穗粒数31.00~34.40粒,收获指数40.95%~43.13%,株高86~96 cm,水分利用效率14.12~16.38 kg/(mm·hm~2);越冬期、拔节期、孕穗期和抽穗期的群体大小应分别为成穗数的1.88、3.35、2.26和1.51倍;越冬期、拔节期、孕穗期、开花期、收获期的干物质积累量应分别占总干物质量的3.20%、16.85%、23.08%、26.81%、30.07%。
Twenty dryland wheat cultivars were screened under drought conditions in the Huanghuai winter wheat area. The results showed that there were 7 cultivars of more than 6000 kg / hm ~ 2, namely XINNONG 928, 6359, LAOAN 6, HUAN 136, XINNONG 219, LUANAN 7 and CHANGAN 58; The index of traits was spikelets per hm ~ 2, grain weight per spike 45.96 ~ 50.01 g, spikelets number 31.00 ~ 34.40, harvest index 40.95% ~ 43.13%, plant height 86 ~ 96 cm, water use efficiency 14.12 ~ 16.38 kg / (mm · hm ~ 2). The population size of overwintering, jointing, booting and heading stages should be 1.88, 3.35, 2.26 and 1.51 times as many as the number of spikes; The dry matter accumulation in the period, flowering stage and harvest period should respectively account for 3.20%, 16.85%, 23.08%, 26.81% and 30.07% of the total dry matter.