河北沧州地区紫花苜蓿品种的生产性能比较

2014~2019年通过田间试验对国内外12个紫花苜蓿品种在河北沧州地区的产量性能进行比较分析,以期筛选出适宜河北沧州地区种植的苜蓿品种。结果表明,不同年份的苜蓿年产量具有显著差异(P<0.05);12个苜蓿品种中5年总产量(干重)居前三位的是中苜3号、Vision和Instinct,分别为100254.7kg/hm 2、91458.2kg/hm 2和91209.9kg/hm 2。第1茬干草产量约占年总产量的32%。除2017年第4茬外,各茬次平均产量(5年共20茬次)和对应的年产量呈显著正相关关系(P<0.05),第1茬的平均相关系数(0.846)最高,第4茬的平均相关系数(0.502)最低。基于5年的丰产性和产量稳定性分析表明,适宜沧州地区种植的苜蓿品种为中苜3号,3个引进品种Vision、Instinct、SASKIA表现良好。

Production Performance Comparison of Alfalfa Cultivars in Cangzhou Area of Hebei Province

In order to select alfalfa cultivars suitable for planning in Cangzhou area of Hebei province,the field experiment from 2014 to 2019 was conducted to compare and analyze the yield performance of twelve alfalfa(Medicago sativa L.)cultivars from home and abroad in this area.The results showed that the annual hay yield of alfalfa in different years had significant differences(P<0.05),Zhongwu No.3,Vision and Instinct ranked the top three in total hay yield in five years,which were 100254.7kg/hm 2,91458.2kg/hm 2 and 91209.9kg/hm 2,respectively.The hay yield of first cutting was the highest,accounting for 32%of total annual yield.Except for the fourth cutting in 2017,the average yield of each cutting(20 cuttings in five years)showed a significant positive correlation with the corresponding annual hay yield.The average correlation coefficient(0.846)of the first cutting was the highest,and the average correlation coefficient(0.502)of the fourth cutting was the lowest.Comprehensive analysis of yield and stability over five years showed that Zhongmu No.3 was suitable for planting in Cangzhou area and the three introduced cultivars Vision,Instinct and SASKIA performed well.