Huang Gaojian, Qin Xingyu, Chen Ziyu, Miao Huifeng, Yang Zhiping, Zhang Qiang, Xing Yi
College of Resource & Environment, Shanxi Agricultural University, Taiyuan, Shanxi, China.
Soil Health Laboratory in Shanxi Province, Taiyuan, Shanxi, China.
Front Plant Sci. 2025 Jun 2;16:1588096. doi: 10.3389/fpls.2025.1588096. eCollection 2025.
Continuous cultivation of the medicinal herb () declines root yield and active ingredient content. Scientific and reasonable intercropping patterns can improve yield and active ingredient accumulation. However, how intercropping systems affect root yield and active ingredient content of is still poorly understood. We conducted a field experiment with four treatments, including monoculture (MC), one row of intercropping with one row of faba bean (IC1), two rows of intercropping with one row of faba bean (IC2), and four rows of intercropping with one row of faba bean (IC3), to explore the response of leaf traits, root yield, and active ingredient content of to cropping patterns. The results showed that intercropping significantly increased the root yield of by 7.0-18.7%, lobetyolin yield by 8.6-25.2%, atractylenolide III yield by 34.2-54.0%, and syringin yield by 31.1-53.4% compared to monoculture, and the largest yield advantage occurred in IC2. The results also showed that intercropping significantly improves leaf size, net photosynthetic rate, and C metabolism enzyme activity of . Correlation analysis and partial least squares path model showed that improved root and active ingredient yield in intercropping can be attributed to enhanced leaf photosynthesis and C metabolism, indicating that appropriate row configuration in /faba bean intercropping system could increase the yield of by enhancing light use efficiency. These findings suggest that two rows of intercropping with one row of faba bean is a promising approach to establishing a high-yield and sustainable agroecosystem.
该药用植物（）的连作会降低根产量和活性成分含量。科学合理的间作模式可以提高产量和活性成分积累。然而，间作系统如何影响该植物的根产量和活性成分含量仍知之甚少。我们进行了一项田间试验，设置了四个处理，包括单作该植物（MC）、一行该植物与一行蚕豆间作（IC1）、两行该植物与一行蚕豆间作（IC2）以及四行该植物与一行蚕豆间作（IC3），以探究该植物的叶性状、根产量和活性成分含量对种植模式的响应。结果表明，与单作相比，间作显著提高了该植物的根产量7.0 - 18.7%、紫菀酮产量8.6 - 25.2%、白术内酯III产量34.2 - 54.0%以及紫丁香苷产量31.1 - 53.4%，且产量优势最大的是IC2。结果还表明，间作显著改善了该植物的叶面积、净光合速率和碳代谢酶活性。相关性分析和偏最小二乘路径模型表明，间作中根和活性成分产量的提高可归因于叶片光合作用和碳代谢的增强，这表明该植物/蚕豆间作系统中合适的行配置可以通过提高光能利用效率来增加该植物的产量。这些发现表明，两行该植物与一行蚕豆间作是建立高产且可持续的该植物农业生态系统的一种有前景的方法。
