人工剪蔓对白条党参药材产量、质量及种子产量的影响

目的:考察人工剪蔓对白条党参药材产量、质量及种子产量的影响,为该药材的资源利用提供参考。方法:以产籽量、药材产量及质控参数为评价指标,在地上茎叶生长旺盛期对白条党参的地上藤蔓实施1次和2次剪蔓打尖,1次剪蔓于7月中旬剪除地上藤茎30cm,2次剪蔓于8月初再次剪除地上藤茎20cm,以自然生长植株作对照,于10月中旬至11月底统一采集种子与药材,测定单位种植面积产籽量、药材产量及质控标准指标参数。结果:1次剪蔓的产籽量高于对照21.4%,2次剪蔓的产籽量低于对照16.5%;1次剪蔓单位面积的药材增产幅度达到25%~35%,且对药材质控参数影响甚微。结论:剪蔓技术能有效调控甘肃党参单位面积的产籽量与产量,生产的党参符合2010年版《中国药典》的质量标准规定,为甘肃白条党参的GAP种植提供参考。

Effects of Artificial Vine Cutting on Quality,Yield of Medicinal Material and Seed of Baitiao Codonopsis Radix

Objective: To investigate effects of artificial vine cutting method on output, quality and seed yeild of Baitiao Codonopsis Radix. Method: By taking seed yield, output and quality as indexes, top of climbing vine of Baitiao Codonopsis Radix was cut when stems and leaves flourished.At the first time the top 30 cm was removed on the middle of July while the second time the top 20 cm was removed on foundation of growth after the first cutting on the beginning of August.Seeds and plants from the middle of October to the beginnning of November were collected, seed yields and outputs per unit and qualities of Baitiao Codonopsis Radix were determined by comparing with the natural growth plants. Result: Seed yields of the plants in the first period were 21.4% over those of the normal plants with natural growth, seed yields of the plants in the second period were 16.5% below those of the normal plants with natural growth.Increase of output per unit in the first period was 25%-35% and artificial vine cutting had little influence on quality of Baitiao Codonopsis Radix. Conclusion: Cutting vine can control output and seed yields per unit area of Codonopsis Radix in Gansu effectively, which can meet rules of quality standards in the 2010 edition of Chinese Pharmacopoeia, this study provides a reference for good agricultural practice(GAP) planting of Baitiao Codonopsis Radix.