Huang Gaojian, Miao Huifeng, Chen Yaqian, Wang Ke, Zhang Qiang, Yang Zhiping
College of Resource & Environment, Shanxi Agricultural University, Taiyuan, Shanxi, China.
Shanxi Province Key Laboratory of Soil Environment and Nutrient Resources, Shanxi Agricultural University, Taiyuan, Shanxi, China.
Front Plant Sci. 2024 May 30;15:1381182. doi: 10.3389/fpls.2024.1381182. eCollection 2024.
Plant growth regulators have been used in the cultivation of medicinal plants to increase yield, but the existing regulators decreased the content of active constituents which benefit human health. Therefore, it is necessary to find a new growth regulator to achieve the win-win goal of increasing yield and improving active constituents' accumulation. The potential of replacing chlorocholine chloride with a new humic acid-based growth regulator was evaluated by measuring the yield and active constituents' accumulation of . Three treatments including water (CK), chlorocholine chloride (T1) and humic acid regulator (T2) were applied by foliar spraying. Among them, both chlorocholine chloride and humic acid regulator belong to biostimulant. The result showed that the root yield in T1 and T2 were significantly increased by 59.1% and 54.9% compared with CK, respectively, and there was no significant difference between T1 and T2. Compared with CK, the yields of lobetyolin, syringin and atractylenolide III of were significantly decreased by 6.3%, 7.3% and 13.0% in T1, but were significantly increased by 22.8%, 14.8% and 32.0% in T2, respectively. Redundancy analyses showed that photosynthetic rate, sucrose phosphoric acid synthetase and phosphomannomutase had higher degree of explanation for yield and quality. Linear regression results indicated that photosynthetic rate and phosphomannomutase were the main factors to affect yield and active constituents yields, respectively. In addition, the output-input ratios based on the yields of polysaccharides, lobetyolin, syringin and atractylenolide III of in T2 was significantly increased by 6.5%, 15.2%, 8.7% and 31.2% respectively as compared with T1. Overall, compared with water treatment, both chlorocholine chloride and humic acid regulator treatments can increase the root yield of . Compared with chlorocholine chloride, humic acid regulator can improve the yield of active constituents and economic benefits of . This study indicated that reasonable selection of plant growth regulators is of great significance for achieving a win-win goal of increasing the root yield and active constituents of medicinal plants.
植物生长调节剂已被用于药用植物栽培以提高产量，但现有的调节剂会降低对人体健康有益的活性成分含量。因此，有必要寻找一种新的生长调节剂，以实现提高产量和改善活性成分积累的双赢目标。通过测量[具体植物名称]的产量和活性成分积累，评估了用一种新型腐殖酸基生长调节剂替代氯化胆碱的潜力。通过叶面喷施进行了三种处理，包括水（CK）、氯化胆碱（T1）和腐殖酸调节剂（T2）。其中，氯化胆碱和腐殖酸调节剂均属于生物刺激剂。结果表明，与CK相比，T1和T2的根产量分别显著提高了59.1%和54.9%，且T1和T2之间无显著差异。与CK相比，T1中[具体植物名称]的紫菀酮、紫丁香苷和白术内酯III的产量分别显著降低了6.3%、7.3%和13.0%，而T2中分别显著提高了22.8%、14.8%和32.0%。冗余分析表明，光合速率、蔗糖磷酸合成酶和磷酸甘露糖变位酶对产量和品质的解释程度较高。线性回归结果表明，光合速率和磷酸甘露糖变位酶分别是影响产量和活性成分产量的主要因素。此外，与T1相比，基于T2中[具体植物名称]的多糖、紫菀酮、紫丁香苷和白术内酯III产量的产出投入比分别显著提高了6.5%、15.2%、8.7%和31.2%。总体而言，与水处理相比，氯化胆碱和腐殖酸调节剂处理均可提高[具体植物名称]的根产量。与氯化胆碱相比，腐殖酸调节剂可提高[具体植物名称]的活性成分产量和经济效益。本研究表明，合理选择植物生长调节剂对于实现提高药用植物根产量和活性成分的双赢目标具有重要意义。
