[Objective] To analyze the quality of tetraploid and diploid of Stachys sieboldii Miq. [Method] The diploid materials and tetraploid materials induced from colchicine-treated diploid were cultivated in the same environmental condition. Next, three important quality indicators of the dry matter content, soluble protein content and soluble sugar content of 5. sieboldU were analyzed. [Result] The dry matter content, soluble protein content and soluble sugar content were increased by 43.16% , 9.46% and 21.74% respectively in the tetraploid blade than in the diploid one of S. sieboldU; while they were increased by 13.12% , 21.89% and7.42% in the tetraploid tuber than in the diploid one, respectively. [Conclusion] S. sieboldU tetraploid is superior to diploid in the economic value due to containing more nutritional components.%[目的]分析草石蚕四倍体与二倍体的品质.[方法]对引进的草石蚕二倍体材料进行秋水仙素诱导处理,成功获得草石蚕的四倍体材料,然后将草石蚕二倍体和四倍体材料进行栽培试验,并分析草石蚕的干物质含量、可溶性蛋白质含量和可溶性糖含量3个重要品质指标.[结果]四倍体叶片中干物质含量、可溶性蛋白质含量和可溶性糖含量比二倍体分别增加了43.16％、9.46％和21.74％;而四倍体块茎中干物质含量、可溶性蛋白质含量和可溶性糖含量比二倍体分别增加了13.12％、21.89％和7.47％.[结论]四倍体的营养成分要比二倍体高,在经济价值上比二倍体更优越.
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