Zou Jun, Liu Li, Guo Qiao-Sheng, Jin Lin
Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China.
Zhongguo Zhong Yao Za Zhi. 2018 Oct;43(19):3848-3854. doi: 10.19540/j.cnki.cjcmm.20180726.002.
Through the determination of the growth, physiological and active components of Glechoma longituba, the effect of soil bulk density on growth and quality of G. longituba was explored. Through pot experiment, six different bulk density treatments were set for 0.8, 0.9, 1.0, 1.1, 1.2, 1.3 g·cm⁻³ , the growth index, physiological index and the content of active components were determined. The results showed that the growth indexes and biomass of G. longituba firstly increased and then decreased with the increase of soil bulk density. The dry weight of G. longituba achieved the maximum 5.70 g in the treatment of 1.0 g·cm⁻³ . The photosynthetic pigments, soluble sugars and free amino acids firstly increased and then decreased with the increase of soil bulk density. The suitable soil bulk density was beneficial to the accumulation of photosynthetic pigment, soluble protein and free amino acid synthesis. The content of malondialdehyde increased gradually with the increase of soil bulk density. The contents of ethanol-soluble extractives of G. longituba were greater than 25%, meeting its quality criterionin Chinese Pharmacopoeia 2015, achieved the maximum of 40.66% in the treatment of 1.0 g·cm⁻³ . The total flavonoids content of G. longituba increased gradually with the increase of soil bulk density, triterpenic acid and phenolic acids decreased gradually with the increase of soil bulk density. Soil bulk density has a significant effect on the growth and quality of G. longituba, and it is conducive to the growth and its medicinal quality at the soil bulk density of 1.0 g·cm⁻³.
通过测定活血丹的生长、生理及活性成分，探讨土壤容重对活血丹生长及品质的影响。通过盆栽试验，设置0.8、0.9、1.0、1.1、1.2、1.3 g·cm⁻³ 六个不同容重处理，测定其生长指标、生理指标及活性成分含量。结果表明，活血丹的生长指标和生物量随土壤容重增加先升高后降低。在1.0 g·cm⁻³ 处理下，活血丹干重达到最大值5.70 g。光合色素、可溶性糖和游离氨基酸随土壤容重增加先升高后降低。适宜的土壤容重有利于光合色素积累、可溶性蛋白合成及游离氨基酸合成。丙二醛含量随土壤容重增加逐渐升高。活血丹醇溶性浸出物含量均大于25%，符合《中国药典》2015年版质量标准，在1.0 g·cm⁻³ 处理下达到最大值40.66%。活血丹总黄酮含量随土壤容重增加逐渐升高，三萜酸和酚酸含量随土壤容重增加逐渐降低。土壤容重对活血丹的生长和品质有显著影响，土壤容重为1.0 g·cm⁻³ 有利于其生长及药用品质。
