陇东地区6个紫花苜蓿品种生产性能比较试验

The Comparison of Production Performance of Six Alfalfa Varieties in the Longdong Area

为筛选适合陇东地区种植的紫花苜蓿品种,2012~2016年在甘肃省庆阳市西峰区对6个苜蓿品种进行了比较试验,并应用层次分析法对其生产性能进行综合评价。结果表明:(1)5年干草总产量由高到低依次是先行者、哥萨克、WL-343HQ、陇东苜蓿、甘农1号和惊喜,前三位分别为13.42、12.63和12.29 t/hm^(2),其中先行者较陇东苜蓿平均增产9.28%。(2)不同年份的苜蓿产量具有显著差异,其中5个外引品种第3~4年产量最高,陇东苜蓿第5年最高、第3年次之。(3)综合评价表明,哥萨克、先行者和WL-343HQ总得分为3.41、3.30和3.07,生产性能最好;陇东苜蓿和甘农1号总得分为2.86和2.71,生产性能较好;惊喜总得分2.19,生产性能最差。综合分析5年结果,先行者、哥萨克和WL-343HQ丰产性好、稳产性强、品质较好,综合性状最好,适宜在陇东及周边地区大面积推广种植;陇东苜蓿和甘农1号粗蛋白含量高、品质优良、耐连作,稳产性较好,综合性状较好,可在当地继续种植;惊喜稳产性好,但产量最低、品质一般,不适合在当地种植。

The study aimed to select suitable alfalfa varieties for planting in eastern Gansu by conducting a comparative test on six alfalfa cultivars in Xifeng,eastern Gansu,from 2012 to 2016.The present study also applied the analytic hierarchy process(AHP)to evaluate the production performance of different alfalfa varieties.The results showed that:(1)the total hay yield in five years of Pioneer,Cossack,WL-343HQ,Longdong alfalfa,Gannong No.1,and Surprise was 13.42 t/hm^(2),12.63 t/hm^(2)and 12.29 t/hm^(2),respectively.The average yield of Pioneer was 9.28%higher than that of Longdong alfalfa from 2012 to 2016.(2)There were significant differences in alfalfa yield among different years.The yield of five imported alfalfa varieties was the highest in the third and fourth years,followed by Longdong alfalfa in the fifth and third years.(3)The comprehensive evaluation showed that the total scores of Cossack,Pioneer,and WL-343HQ were 3.41,3.30,and 3.07,respectively,having the most outstanding production performance.The total scores of Longdong alfalfa and Gannong No.1 were 2.86 and 2.71,respectively,with good production performance.The total score of Surprise was 2.19,with the lowest production performance.The comprehensive analysis of the results of five years showed that Pioneer,Cossack,and WL-343 HQ had higher and more stable yields with good quality and optimum comprehensive characteristics,suitable for large-scale planting in Longdong and surrounding areas.In addition to the above good qualities,Longdong alfalfa and Gannong No.1 were also ideal for local planting due to higher crude protein content and better resistance.Although Surprise had a stable yield performance,it was not suitable for local planting because of its low yield.