亚热带植物科学 ›› 2025, Vol. 54 ›› Issue (6): 629-635.DOI: 10.3969/j.issn.1009-7791.2025.06.004

• 研究论文 • 上一篇    下一篇

亏缺灌溉对河西绿洲灌区蒙古黄芪品质及产量的影响

张立星1,李福强1*,滕安国2,雷  2,郭  1,陈谢田1,李  1   

  1. (1. 甘肃农业大学水利水电工程学院,甘肃 兰州 7300702. 民乐县洪水河管理处,甘肃 张掖 734500)
  • 收稿日期:2025-05-08 接受日期:2025-07-15 出版日期:2025-12-31 发布日期:2025-12-31
  • 通讯作者: 李福强
  • 基金资助:
    甘肃农业大学科研启动经费(GAU-KYQD-2022-19);甘肃省教育厅甘肃省高校创新基金(2023B-086);省部共建干旱生境作物学国家重点实验室开放基金(GSCS-2023-15);甘肃省青年科技基金项目(24JRRA666)

Effects of Deficit Irrigation on the Quality and Yield of Astragalus membranaceus var. mongholicus in the Hexi Oasis Irrigation Area

ZHANG Li-xing1, LI Fu-qiang1*, TENG An-guo2, LEI Lian2, Guo Hui1, CHEN Xie-tian1, LI Zhe1   

  1. (1. College of Water Resources and Hydropower Engineering, Gansu Agricultural University, Lanzhou 730070, Gansu China; 2. Minle Hongshui River Management Office, , Minle 734500, Gansu China)
  • Received:2025-05-08 Accepted:2025-07-15 Online:2025-12-31 Published:2025-12-31
  • Contact: LI Fu-qiang

摘要: 通过河西绿洲灌区的大田试验,分别在蒙古黄芪Astragalus membranaceus var. mongholicus现蕾开花期、根茎伸长期、结果成熟期和根茎增粗期设置轻度(65%~75%田间持水量,FC)和中度(55%~65% FC)的水分亏缺处理,以全生育期充分灌溉(75%~85% FC)作为对照(CK),探究蒙古黄芪品质及产量在不同生育期受水分胁迫的响应机制。结果表明,与CK相比,在结果成熟期和根茎增粗期进行轻度(65%~75% FC)亏缺灌溉处理可显著增加毛蕊异黄酮苷、芒柄花苷和黄芪甲苷等有效成分含量;在根茎伸长期进行中度(55%~65% FC)调亏可提高毛蕊异黄酮有效成分含量;在现蕾开花期和根茎伸长期进行轻度(65%~75% FC)亏缺灌溉处理可提高蒙古黄芪产量。综合评价显示,在根茎伸长期进行轻度调亏灌溉(65%~75% FC)可作为河西绿洲灌区蒙古黄芪的灌溉策略,结果成熟期进行轻度调亏灌溉(65%~75% FC)可作为备用灌溉策略。

关键词: 蒙古黄芪, 亏缺灌溉, 品质, 产量

Abstract: A field experiment was conducted in the Hexi Oasis Irrigation Area, where water deficit treatments were imposed at four growth stages of Astragalus membranaceus var. mongholicus: bud-breaking and flowering stage, rhizome elongation stage, fruit maturation stage, and rhizome thickening stage. The treatments included mild water deficit (65%–75% field capacity, FC) and moderate water deficit (55%–65% FC), with full irrigation (75%–85% FC) throughout the entire growth period serving as the control (CK), to investigate the response mechanisms of quality and yield of A. membranaceus var. mongholicus to water stress at different growth stages. The results showed that, compared with CK, mild deficit irrigation (65%–75% FC) during the fruit maturation and rhizome thickening stages significantly increased the contents of active components including calycosin-7-glucoside, ononin, and astragaloside IV; moderate regulated deficit irrigation (55%–65% FC) during the rhizome elongation stage enhanced the content of calycosin; and mild deficit irrigation (65%–75% FC) during the bud-breaking and flowering stage and rhizome elongation stage improved the yield of A. membranaceus var. mongholicus. Comprehensive evaluation indicated that mild regulated deficit irrigation (65%–75% FC) during the rhizome elongation stage should be adopted as the optimal irrigation strategy, while mild regulated deficit irrigation (65%–75% FC) during the fruit maturation stage could serve as an alternative strategy for A. membranaceus var. mongholicus cultivation in the Hexi Oasis Irrigation Area.

Key words: Astragalus membranaceus var. mongholicus, deficit irrigation, quality, yield

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