Liu Dahui, Guo Lanping, Huang Luqi, Jin Hang, Wu Lihua, Zeng Yan, Zhang Ji, Yang Yan
Institute of Chinese Material Medica, China Academy of ChineSe Material Science, Beijing 10070, China.
Zhongguo Zhong Yao Za Zhi. 2011 Feb;36(3):321-5.
In order to provide a scientific water management for the standardized cultivation, the effects of soil water content on the seedlings growth and active ingredients of S. miltiorrhiza were studied.
A water stress experiment with pot culture was applied to study the effects of different soil water content on the seedlings growth, biomass and the accumulation of tanshinone, salvianolic acid B and mineral nutrition of S. miltiorrhiza.
Soil water content had serious influence on the growth, yield, outer appearance and inner quality of S. miltiorrhiza when the soil was under severe drought or with too much water. But the shoot and root biomass of S. miltiorrhiza was increased significantly under mild drought. As well as the content and cumulant of dihydrotanshinone I , cryptotanshinone, tanshinone I , tanshinone IIA and salvianolic acid B in root of mild drought were increased. It also enhanced the P, K, Ca, Mg, Mn, Zn, Cu and Fe contents of S. miltiorrhiza under mild drought.
The overall results from the experiment suggest that the appropriate soil water content is 55% to 60% in seedling stage of S. miltiorrhiza. And it will be strongly recommended that the ridge culture and suitable soil moisture management must be carry out in production of S. miltiorrhiza in order to improve the yield and quality of medicinal materials.
为规范丹参栽培提供科学的水分管理依据，研究土壤含水量对丹参幼苗生长及有效成分的影响。
采用盆栽水分胁迫试验，研究不同土壤含水量对丹参幼苗生长、生物量以及丹参酮、丹酚酸B积累和矿质营养的影响。
土壤严重干旱或水分过多时，土壤含水量对丹参的生长、产量、外观和内在品质均有严重影响。但轻度干旱条件下丹参地上部和根部生物量显著增加。轻度干旱时根中二氢丹参酮I、隐丹参酮、丹参酮I、丹参酮IIA和丹酚酸B的含量及累积量也增加。轻度干旱还提高了丹参中磷、钾、钙、镁、锰、锌、铜和铁的含量。
试验结果表明，丹参幼苗期适宜的土壤含水量为55%至60%。强烈建议在丹参生产中采用垄作栽培并进行适宜的土壤水分管理，以提高药材产量和品质。
