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中国农学通报

中国农学通报 ›› 2026, Vol. 42 ›› Issue (4): 97-104.doi: 10.11924/j.issn.1000-6850.casb2025-0839

• 林学·园艺·园林 • 上一篇    下一篇

基于光合荧光与隶属函数的节水耐旱姜花种质筛选

姚翔1(), 程亚楠2, 刘萍2, 陈琼1, 胡秀2()   

  1. 1 广州市绿化有限公司， 广州 510420
    2 仲恺农业工程学院， 广州 510225
  • 收稿日期:2025-10-02 修回日期:2026-01-20 出版日期:2026-02-27 发布日期:2026-02-27
  • 通讯作者:
    胡秀，女，1976年出生，四川西昌人，教授，博士，研究方向为姜科特异性种质资源收集、挖掘及四季姜花新种质创制。通信地址：510550 广东省广州市白云区钟落潭镇广新路388号 仲恺农业工程学院，E-mail：。
  • 作者简介:

    姚翔，男，1981年出生，广东汕头人，高级工程师，硕士，主要从事园林植物研究与应用、园林施工管理方面的研究。通信地址：510420 广州市白云区黄边北路575号 广州市绿化有限公司，E-mail：。

  • 基金资助:
    广州市建筑集团有限公司科技计划项目“园林苗木规模化生产基地建设”(2022-KJ031)

Screening of Water-saving and Drought-tolerant Hedychium Germplasm Based on Photosynthetic Fluorescence and Membership Function Method

YAO Xiang1(), CHENG Yanan2, LIU Ping2, CHEN Qiong1, HU Xiu2()   

  1. 1 Guangzhou Greening Co., Ltd., Guangzhou 510420
    2 Zhongkai University of Agriculture and Engineering, Guangzhou 510225
  • Received:2025-10-02 Revised:2026-01-20 Published:2026-02-27 Online:2026-02-27

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摘要：

姜花属植物兼具生态、观赏与药用价值，但喜温湿的特性制约了其在较干旱、半干旱地区的园林应用。阐明节水耐旱型姜花种质的光合生理适应机制，可为姜花优质品种选育、抗旱栽培模式优化及景观应用配植提供理论依据。本研究以10个姜花品种为材料，测定叶面积、光合色素含量、气体交换参数及叶绿素荧光参数等12项指标，利用模糊数学隶属函数法进行综合分析，构建光合能力综合评价体系。结果显示，不同品种姜花的光合生理特征存在显著差异；‘蜜兰’叶面积最大(319.65 cm2)；‘红天鹅’叶绿素总量最高(3.11 mg/g)；‘雅橙’净光合速率[4.02 μmol/(m2·s)]和蒸腾速率[4.14 mmol/(m2·s)]最高，且光能转换效率(0.76~0.80)和PSⅡ潜在光化学活性(3.16~3.93)全天维持稳定高水平；‘巧巧’水分利用效率最高(2.63 μmol/mmol)。相关性分析显示，净光合速率与气孔导度呈极显著正相关(r=0.78**)，与胞间CO2浓度呈负相关(r=-0.49)；叶绿素总量与净光合速率无显著正相关。通过隶属函数法进行综合评价，10个品种光合能力由强到弱为‘矮大头’>‘巧巧’>‘阔瓣’>‘雅橙’>‘蜜兰’>白姜花>‘逐月’>‘夏红’>‘粉晕’>‘红天鹅’。光合效率受多因素协同调控，‘矮大头’和‘巧巧’的光合能力与综合适应性最优，可作为节水耐旱潜力突出的姜花种质优先应用于节约型园林建设；‘雅橙’适合水分充足区域的高产栽培；‘粉晕’和‘阔瓣’可用于强光环境配植。研究结果可为姜花种质的精准筛选与园林应用提供理论支撑。

关键词: 姜花属, 低维护品种, 光合生理特性, 水分利用效率, 叶绿素荧光, 隶属函数法

Abstract:

Plants of the genus Hedychium possess ecological, ornamental, and medicinal values. However, their preference for warm and humid conditions restricts their application in relatively arid environments. To address the above issues, screening of water-saving and drought-tolerant Hedychium germplasm is important. This study aimed to clarify the photosynthetic physiological adaptation mechanism of water-saving and drought-tolerant Hedychium germplasm, thereby providing a theoretical basis for the breeding of high-quality Hedychium varieties, optimization of drought-resistant cultivation modes, and configuration of landscape applications. 10 Hedychium varieties were used as materials, and 12 indicators including leaf area, photosynthetic pigment content, gas exchange parameters, and chlorophyll fluorescence parameters were determined. A comprehensive analysis was conducted using the membership function method of fuzzy mathematics to construct a comprehensive evaluation system for photosynthetic capacity. The results showed significant differences in photosynthetic physiological characteristics among different Hedychium varieties. ‘Milan’ had the largest leaf area (319.65 cm2); ‘Hongtian’e’ had the highest total chlorophyll content (3.11 mg/g); ‘Ya Cheng’ exhibited the highest net photosynthetic rate [4.02 μmol/(m2·s)] and transpiration rate [4.14 mmol/(m2·s)], and maintained stable and high levels of light energy conversion efficiency (0.76-0.80) and PSⅡ potential photochemical activity (Fv/Fo) (3.16-3.93) throughout the day; ‘Qiaoqiao’ had the highest water use efficiency (2.63 μmol/mmol). Correlation analysis revealed that the net photosynthetic rate was extremely significantly positively correlated with stomatal conductance (r=0.78**) and negatively correlated with intercellular CO2 concentration (r=-0.49), while there was no significant positive correlation between total chlorophyll content and net photosynthetic rate. Comprehensive evaluation using the membership function method showed that the photosynthetic capacity of the 10 varieties, from strongest to weakest, was in the order: ‘Ai Datou’> ‘Qiaoqiao’> ‘Kuoban’> ‘Yacheng’> ‘Milan’> Hedychium coronarium> ‘Zhuyue’> ‘Xiahong’> ‘Fenyun’> ‘Hongtian’e’. Photosynthetic efficiency was regulated by multiple factors synergistically; ‘Ai Datou’ and ‘Qiaoqiao’ exhibited the optimal photosynthetic capacity and comprehensive adaptability, and could be prioritized as Hedychium germplasm with outstanding water-saving and drought-tolerant potential for application in resource-saving landscape construction. ‘Yacheng’ is suitable for high-yield cultivation in water-sufficient areas, while ‘Fenyun’ and ‘Kuoban’ can be used in the configuration of high-light environments. The results of this study can provide theoretical support for the precise screening of Hedychium germplasm and their landscape application.

Key words: Hedychium, low-maintenance varieties, photosynthetic physiological characteristics, water use efficiency, chlorophyll fluorescence, membership function method