不同品种苜蓿在不同生育期总皂苷含量变化的研究

通过分析内蒙古地区种植的紫花苜蓿、黄花苜蓿、草原2号苜蓿在不同生育期总皂苷含量的变化，并利用SPSS11．5统计软件进行方差分析，并采用Duncan法进行均值的多重比较。结果表明，返青期到初花期的植株总皂苷含量为紫花苜蓿〉草原2号苜蓿〉黄花苜蓿，紫花苜蓿的总皂苷含量极显著高于黄花苜蓿（P〈0．01）；在盛花期和结荚期，草原2号苜蓿的总皂苷含量高于其他2个品种；成熟期黄花苜蓿的总皂苷含量最高。紫花苜蓿与草原2号苜蓿在结荚期的植株总皂苷含量显著大于其他生育期（P〈0．05），黄花苜蓿的总皂苷含量在盛花期达到最大。

Study on Content Change of Total Saponin Content in Different Alfalfa Varieties During Growth Period

Studied contents of alfalfa saponins of Medicago sativa, Medicagofalcata and Caoyuan No.2 in different breeding period. The variance analysis was made by using program of SPSS 11.5 software, and multiple comparison of was carried out with Duncan methods. The results indicated that from regreening stage to early blooming time, the contents of total saponins in plants were ： Medicago sativa〉 Caoyuan No.2 〉 Medicagofalcata. The contents of total saponins in lucerne was noticeably higher than Medicagofalcata （P〈0.01）. At full bloom stage and pod-besring period, the contents of total saponins in Caoyuan No.2 was higher than the other varieties. At the maturation stage, the contents of total saponins in Medicago falcata was higher than the other varieties.The contents of total saponins plants of Medicago sativa and Caoyuan No.2 in pod-besring period were noticeably higher than other growing periods （P〈0.05）. At full bloom stage, the contents of total saponins Medicagofalcata was higher than the other growing periods.