Suitable soil moisture contents for water use efficiency and saponins accumulation in Panax notoginseng
10.1016/j.chmed.2020.10.002
- Author:
Yu-jie ZHENG
1
;
Peng-guo XIA
1
;
Zong-suo LIANG
1
;
Wei-guo CHAI
2
;
Hong-guang ZHAO
3
;
Jian-fen ZHENG
3
;
Kai-jing YAN
3
Author Information
1. Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University
2. Institute of Biotechnology, Hangzhou Academy of Agricultural Sciences
3. Yunnan TASLY Notoginseng Pharmaceutical Co., Ltd
- Publication Type:Journal Article
- Keywords:
Panax notoginseng (Burk.) F. H. Chen;
saponins;
transpiration coefficient;
water consumption dynamics;
water use efficiency
- From:
Chinese Herbal Medicines
2021;13(2):267-273
- CountryChina
- Language:Chinese
-
Abstract:
Objective: The moisture content in the soil directly affects the yield and quality of Panax notoginseng, especially at the age of three years old. However, the suitable moisture for the growth of P. notoginseng is unknown. In this study, the effects of different soil moisture on the growth of P. notoginseng were studied. Methods: Four different water treatments (0.45 field capacity (FC), 0.60 FC, 0.70 FC, and 0.85 FC) were set up in Shilin County, Yunnan Province, China. The water consumption and daily dynamic of water consumption were determined daily (from April 21 to October 18, 2012), and the daily dynamic of water consumption under different weather conditions (sunny and rainy) was determined. The transpiration coefficient and water use efficiency were calculated through dry matter accumulation and total water consumption. Accumulation of saponins of roots of P. notoginseng were analyzed by HPLC after treated, and the soil moisture content suitable for the growth of P. notoginseng was estimated by regression fitting of the active ingredient accumulation and the soil moisture content. Results: The water consumption of 0.85 FC, 0.70 FC, 0.60 FC and 0.45 FC were 2.89, 3.68, 3.37 and 2.73 kg/plant per day, respectively. The water consumption of P. notoginseng from June to August was greater than other months. The daily dynamic of water consumption on sunny days and sunny days after rain showed a “double peak” feature, and it showed a “single peak” feature on rainy days. The water uses efficiency (WUE) of 0.85 FC, 0.70 FC, 0.60 FC and 0.45 FC were 2.51, 3.32, 4.59, 3.39 gDW/kg H
