不同药液处理对远志种子萌发影响的研究  

Effect of different treatments on germination characteristics of seeds of medicinal plant Polygala tenuifolia

作　　者：王晶[1] 祁晨煜 王贝[1] 王媛媛[1] 彭亮[1] 胡本祥[1] 

机构地区：[1]陕西中医药大学药学院,陕西咸阳712046

出　　处：《中南药学》2016年第6期599-602,共4页Central South Pharmacy

基　　金：公益性行业(中医药)科研专项经费项目(No.201507002)

摘　　要：目的通过对远志种子形态学特征及其萌发特性的研究,为远志的人工育苗栽种提供科学依据,提高远志种苗成活率。方法首先测定了远志种子的长度、宽度、千粒重、饱满度、含水量、吸水率及净度分析等几项指标,然后通过不同浓度的KMnO_4、H_2O_2、6-BA对种子进行适度浸泡处理,测定其发芽率、发芽势、发芽指数。结果远志种子呈长倒卵形,长约为2.95 mm,宽约为1.92 mm,千粒重为(3.04±0.03)g,饱满度为(91.25±1.18)%,含水量为(8.73±0.44)%,净度为(85±0.01)%,吸水率为38.70%;不同浓度药液浸种实验表明,1.5%的KMnO_4浸种15 min萌发效果最好,发芽率是对照的1.51倍。1.8%的H_2O_2浸种24 h亦有显著促进萌发的作用。0.9%的6-BA浸种24 h也有促进萌发的作用。结论通过研究不同药液及不同浓度下浸种对远志种子萌发特性的影响,筛选出适于其萌发的药液,对远志种子育苗移栽有重要的指导意义。Objective To provide a scientific basis for Polygala tenuifolia artificial seedling, enhance the survival rate, and determine the morphological characteristics and seed germination characteristics. Methods Several physiological indexes the length, width, w eight per thousand seeds, seed plumpness, moisture content, the rate of water absorption, and pure rate were measured. We also studied the germination characteristics. Results Seeds of Polygala tenuifolia was long and ovary about 2.95 mm long, and 1.92 mm wide, weight per thousand seeds（3.04±0.03） g, plumpness（91.25±1.18）%, content of moisture（8.73±0.44）%, pure rate（85±0.01）%, and the rate of water absorption 38.70%; Different soaking concentrations promoted the seed germination： 1.5% KMnO4 soaking for 15 min had best germination, 1.51 times better than that of the reference product; 1.8% H2O2 soaking for 24 h significantly promoted the seed germination, while 0.9% 6-BA also promoted the germination. Conclusion By studying the characteristics of seed germination with different drug concentrations, we can select the suitable concentration for its germination.

关 键 词：远志 种子萌发 药液浸种 发芽状况 

分 类 号：R282.2[医药卫生—中药学]