The effects of water stress on physiological traits, disease infection, and quality of Panax notoginseng

• Published in: Guanʻgai paishui xuebao Vol. 44; no. 8; pp. 53 - 64
• Main Authors: WANG Qijian, DING Hao, YANG Ling, YAN Mingtai, YANG Qiliang
• Format: Journal Article
• Language: Chinese
• Published: Science Press 01.08.2025
• Subjects: panax notoginseng; plant phenotype; water stress; growth regularity; yield
• ISSN: 1672-3317
• DOI: 10.13522/j.cnki.ggps.2025066

【Objective】Panax notoginseng is a valuable medicinal herb widely used in traditional Chinese medicine for its high content of bioactive saponins. Its growth and medicinal quality are sensitive to environmental conditions. This paper investigates the effects of different water stress levels on growth, physiological traits, yield and quality of Panax notoginseng.【Method】The experiment consisted of four water amount treatments: 4.29, 7.14, 10.00 and 12.86 mm. During the experiment, we measured growth traits, dry matter accumulation, physiological traits, yield and quality of Panax notoginseng. The TOPSIS method was used to evaluate the impact of irrigation amount on the quality of Panax notoginseng.【Result】① As time elapsed, the changes in plant height, stem diameter, leaf length and leaf area of the plant showed approximately the same trend, all reaching the maximum at the fruiting stage. These traits were the highest in W2. ② With increasing water stress, the net photosynthetic rate of the plant increased firs