浙江农业科学 ›› 2025, Vol. 66 ›› Issue (4): 885-892.DOI: 10.16178/j.issn.0528-9017.20240312

• 大小麦 • 上一篇    下一篇

腐殖酸对小麦幼苗生长及抗旱性的影响

张运红1abcd(), 任子雯2, 毛家伟1ab,*(), 杨永辉1abcd, 高翠民1abcd, 韩伟锋1abcd, 刘小奇3   

  1. 1.河南省农业科学院 a植物营养与资源环境研究所,b河南省农业资源与环境重点实验室,c农业农村部作物高效用水原阳科学观测试验站,d河南省黄河流域节水农业野外科学观测研究站,河南 郑州 453514
    2.河南农业大学 资源与环境学院,河南 郑州 450046
    3.郑州阿波罗肥业有限公司,河南 荥阳 450100
  • 收稿日期:2024-04-16 出版日期:2025-04-11 发布日期:2025-05-09
  • 通讯作者: 毛家伟
  • 作者简介:毛家伟(1981—),男,湖北广水人,副研究员,主要从事新型肥料研究,E-mail:maojiawei2022@126.com
    张运红(1983—),女,河南新乡人,副研究员,博士,主要从事植物营养与施肥研究,E-mail:snowgirl23@126.com
  • 基金资助:
    河南省农科院创新团队(2024TD27);河南省农业科学院自主创新项目(2025ZC103);国家自然科学基金(32001443);郑州市重大科技创新专项项目(2020CXZX0085)

Effects of humic acids on the growth and drought resistance of wheat seedlings

ZHANG Yunhong1abcd(), REN Ziwen2, MAO Jiawei1ab,*(), YANG Yonghui1abcd, GAO Cuimin1abcd, HAN Weifeng1abcd, LIU Xiaoqi3   

  1. 1. a.Institute of Plant Nutrition, Agricultural Resources and Environmental Science, b. Henan Key Laboratory of Agricultural Resources and Environment, c.Yuanyang Experimental Station of Crop Water Use, Ministry of Agriculture and Rural Affairs, d.Field Scientific Observation and Reserch Station of Water-Saving Agriculture in the Yellow River Basin of Henan Province, Henan Academy of Agricultural Sciences,Zhengzhou 453514, Henan
    2. College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, Henan
    3. Zhengzhou Aboluo Fertilizer Co., Ltd., Xingyang 450100, Henan
  • Received:2024-04-16 Online:2025-04-11 Published:2025-05-09
  • Contact: MAO Jiawei

摘要:

采用水培法,通过聚乙二醇模拟干旱,研究了喷施不同腐殖酸对小麦幼苗生长及抗旱性的影响。利用主成分分析法构建小麦幼苗的综合指标,用于评价腐殖酸促进小麦幼苗生长和提高抗旱性的效果,以期筛选出高活性腐殖酸产品。结果表明,正常生长条件下,F8、F4和F5处理小麦幼苗综合得分最高、长势较好,其中F8处理的小麦地下部鲜重显著高于CK,增幅为24.3%;F5和F8处理的叶绿素b含量也显著增加。干旱胁迫下,F3处理的小麦苗长和地下部鲜重显著高于CK2,增幅分别为15.4%和10.3%;F4处理的小麦地下部鲜重和CAT活性较CK2分别显著增加12.5%和4.1%;F5处理的脯氨酸含量则较CK2处理显著降低72.6%。主成分分析结果显示,F8、F4和F5处理促进小麦生长效果较好,F3、F4和F5处理缓解小麦干旱胁迫效果较好。本试验条件下,10种腐殖酸中,以F4和F5施用效果最佳。

关键词: 腐殖酸, 小麦, 幼苗生长, 抗旱性, 主成分分析

Abstract:

This study employed a hydroponic method to investigate the effects of different humic acid applications on wheat seedling growth and drought resistance under polyethylene glycol (PEG)-simulated drought conditions. Principal component analysis (PCA) was used to construct a comprehensive evaluation index for wheat seedlings to assess the effectiveness of humic acid in promoting growth and enhancing drought resistance, aiming to screen high-activity humic acid products. The results showed that under normal growth conditions, the F8, F4, and F5 treatments achieved the highest comprehensive scores and better growth performance. Specifically, the fresh weight of the underground parts of wheat seedlings treated with F8 was significantly higher than that of CK, with an increase of 24.3%. The chlorophyll b content in the F5 and F8 treatments also increased significantly. Under drought stress, the seedling length and underground fresh weight of wheat treated with F3 were significantly higher than those of CK2, with increases of 15.4% and 10.3%, respectively. The underground fresh weight and catalase (CAT) activity of wheat treated with F4 increased significantly by 12.5% and 4.1%, respectively, compared with CK2. In contrast, the proline content in the F5 treatment decreased significantly by 72.6% compared with CK2. PCA results indicated that F8, F4, and F5 treatments were more effective in promoting wheat growth, while F3, F4, and F5 treatments performed better in alleviating drought stress. Under the experimental conditions, among the 10 humic acids tested, F4 and F5 demonstrated the best application effects.

Key words: humic acid, wheat, seedling growth, drought resistance, principal component analysis

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