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采用田间试验研究了灌溉和地下茎(种栽)长度对甘草仿野生栽培成活率、药材产量和质量的影响。结果发现增加地下茎(种栽)长度可显著提高不定根分生数量和移栽成活率,但是对于甘草酸含量没有显著影响。此外,栽培3年后,不定根中甘草酸平均质量分数可达到3.03%,地下茎(种栽)的平均质量分数可保持在2.12%,说明其所产药材质量远远高于种子繁殖的人工甘草,这一现象可以用“野生甘草药用成分合成惯性假说”解释。但是,从药材产量看栽植3年后最高平均每公顷产量仅能达到945 kg。因此,通过人工栽植野生甘草地下茎进行甘草仿野生栽培,可以快速而稳定的获得优质甘草药材,但今后还有待于在如何提高药材产量方面进一步开展工作。
Field experiments were conducted to study the effects of irrigation and subsurface stem length on the survival rate of licorice-like wild plants and the yield and quality of herbs. The results showed that increasing the length of underground stems could significantly increase the number of adventitious shoots and the transplanting survival rate, but had no significant effect on the content of glycyrrhizic acid. In addition, after 3 years of cultivation, the average mass fraction of glycyrrhizic acid in adventitious roots can reach 3.03% and the average mass fraction of underground stems (plantings) can be kept at 2.12%, indicating that the quality of the medicinal materials produced by them is much higher than that of artificial licorice cultivated with seeds, This phenomenon can be explained by the synthetic inertial hypothesis of medicinal ingredients of wild liquorice. However, the highest average yield per hectare can only reach 945 kg after three years of planting from the output of medicinal herbs. Therefore, artificial cultivation of wild licorice underground stems for licorice imitation of wild cultivation, rapid and stable access to high-quality licorice herbs, but in the future to be how to improve the yield of medicinal herbs to further work.