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中国农学通报

中国农学通报 ›› 2026, Vol. 42 ›› Issue (1): 103-109.doi: 10.11924/j.issn.1000-6850.casb2025-0444

• 林学·园艺·园林 • 上一篇    下一篇

富氢水对三角梅越冬期抗寒性的影响及作用机理

赵绮1(), 戴宇2(), 马春艳2, 朱雨梦1, 贾科杰3   

  1. 1 宁波市鄞州区农业技术推广站，浙江宁波 315100
    2 长三角健康农业研究院（浙江）有限公司，浙江桐乡 314500
    3 南京农业大学，南京 210095
  • 收稿日期:2025-06-09 修回日期:2025-11-20 出版日期:2026-01-15 发布日期:2026-01-15
  • 通讯作者:
    戴宇，男，1984年出生，湖北洪湖人，高级工程师，博士研究生，从事生态环境的评价、修复、健康培育和氢农业等工作。通信地址：314500 桐乡市发展大道133号1号楼1903室，Tel：0573-80893691，E-mail：。
  • 作者简介:

    赵绮，女，1978年出生，浙江宁波人，高级工程师，本科，从事林特技术的推广与管理工作。通信地址：315100 宁波市鄞州区农业技术推广站，Tel：0574-87419883，E-mail：。

  • 基金资助:
    2024年度宁波市公益性研究计划项目“富氢水对三角梅抗逆性及花期调控的效应研究”(2024S117)

Effects and Mechanism of Hydrogen-rich Water on Cold Hardiness of Bougainvillea spectabilis During Overwintering

ZHAO Qi1(), DAI Yu2(), MA Chunyan2, ZHU Yumeng1, JIA Kejie3   

  1. 1 Ningbo Yinzhou District Agricultural Technology Extension Station, Ningbo, Zhejiang 315100
    2 Yangtze Delta Region Healthy Agriculture Institute (Zhejiang) Co., Tongxiang, Zhejiang 314500
    3 Nanjing Agricultural University, Nanjing 210095
  • Received:2025-06-09 Revised:2025-11-20 Published:2026-01-15 Online:2026-01-15

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摘要： 为突破三角梅在长三角地区越冬期低温限制，促进三角梅在长三角地区的应用及推广，以‘玫瑰红’三角梅为试验对象，设置对照组（CK，纯水），0.39 mmol/L（低浓度）、0.78 mmol/L（高浓度）富氢水(HRW)灌溉处理，测定越冬期叶片生理生化指标及形态表现。结果表明：（1）低温胁迫导致三角梅叶片电解质外渗率、丙二醛(MDA)及活性氧[ROS，超氧阴离子(O2.-)、H2O2]含量显著升高，叶片受损明显。（2）低浓度HRW处理可显著提高叶绿素含量，维持高光合能力，促进可溶性糖积累，降低ROS生成与MDA积累，减少电解质外渗率，从而缓解低温损伤。（3）高浓度HRW处理显著加剧上述损伤指标升高，加重低温胁迫伤害。（4）低浓度HRW通过增强渗透调节能力、抑制氧化应激反应提升三角梅抗寒性，高浓度则产生反效应。本研究明确0.39 mmol/L HRW为提升三角梅越冬抗寒性的适宜浓度，为三角梅在长三角地区的规模化应用提供了新的技术途径与理论依据。

关键词: 富氢水, 三角梅, 越冬期, 低温胁迫, 抗寒性, 抗氧化

Abstract:

To overcome the low temperature limitations during the overwintering period of bougainvillea in the Yangtze River Delta region and promote its application and popularization in this area, this study used bougainvillea ‘Rose Red’ as the experimental material. Treatments included a control group (CK, pure water), 0.39 mmol/L (low-concentration), and 0.78 mmol/L (high-concentration) hydrogen-rich water (HRW) irrigation. Physiological and biochemical indicators as well as morphological performance of leaves during the overwintering period were measured. The results showed that: (1) low-temperature stress significantly increased electrolyte leakage rate, malondialdehyde (MDA) content, and reactive oxygen species (ROS, including superoxide anion O2.- and H2O2) accumulation in bougainvillea leaves, with obvious leaf damage. (2) Low-concentration HRW treatment significantly increased chlorophyll content, maintained high photosynthetic capacity, promoted soluble sugar accumulation, reduced ROS generation and MDA accumulation, and decreased electrolyte leakage, thereby alleviating cold-induced damage. (3) High-concentration HRW treatment significantly aggravated the rise in the above injury-related indicators and intensified the damage caused by low-temperature stress. (4) Low-concentration HRW treatment enhanced cold resistance of bougainvillea by improving osmotic adjustment capacity and suppressing oxidative stress, while high-concentration HRW treatment produced the opposite effect. This study identified 0.39 mmol/L HRW as the appropriate concentration for improving the overwintering cold tolerance of bougainvillea, providing a new technical approach and theoretical basis for the large-scale application of bougainvillea in the Yangtze River Delta region.

Key words: hydrogen-rich water, Bougainvillea spectabilis, overwintering, cold stress, cold hardiness, antioxidant