通过三个气候带、四个研究基点的四种土壤,连续四年多点试验结果,已完成各项育种指标。在参试六个品种中,正交种801号、802号和反交种803号、804号,特别是801和802号两个正交种抗逆性较强。冬季无雪或少雪-35℃下的越冬率为94～100％,超过80％以上的育种指标,并高出亲本肇东苜蓿(ck)7.7～9.8％。并有抗春冻的特性,比对照晚返青3天,抗寒性较强;在半干旱区春旱长达50多天,0～10cm土壤含水量为6.67％的严重干旱时期的生长速度比对照快8.97％,超过0～10cm土壤含水量在11％左右尚可正常生长的育种指标;在碳酸盐草甸土PH值为8.16的低湿盐碱地上生育情况良好,株高和产量都高于对照品种,达到了土壤PH值在8～8.5尚可维持生长的育种指标。杂种的再生性强、产草量较高。在肇州低湿盐碱地上的产量高出对照18.17～69.30％,三、四年生的产量还达到显著或极显著标准,其它各点高于或低于对照的差异不显著,完成了在不利条件下达到或超过肇东苜蓿10％以上的育种指标。杂种吸收了亲本扁蓿豆抗寒、抗旱和耐碱的特点,保持了亲本肇东苜蓿产量高、品质好的特性。 Through the three climatic zones, the four research sites of the four kinds of soil, more than four consecutive years of test results, has completed the breeding indicators. Among the six cultivars tested, the orthogonal plants 801, 802 and 803, 804 and especially 801 and 802 were more resistant to stress. Overwintering rate was 94-100% in winter with no or no snow-35 ℃, which exceeded breeding index of more than 80% and was 7.7 ~ 9.8% higher than that of the parent Zhaodong alfalfa (ck). And has the characteristics of anti-spring freeze, greening 3 days later than the control, strong cold resistance; drought in spring up to more than 50 days in semi-arid area, 0 ~ 10cm soil moisture 6.67% of the drought period growth rate The control index was 8.97%, and the index of 0- 10 cm soil moisture content was about 11%. The fertility index of low-salinity saline soil with pH value of 8.16 on carbonate meadow was good, and the plant height and yield were all higher Control varieties, reached the soil PH value of 8 to 8.5 can still maintain the breeding index. Reproductive hybrids, higher yield. The yield of low-salinity saline-alkali soil in Zhaozhou was 18.17-69.30% higher than that of the control. The yield of three-year and four-year-olds also reached significant or extremely significant standard. The difference of other points above or below the control was not significant, and under the unfavorable conditions Meet or exceed the Zhaodong more than 10% of the breeding index of alfalfa. Hybrids absorbed the parental alfalfa cold, drought and alkali-resistant characteristics, maintaining the high yield of Zhaodong alfalfa, good quality characteristics.