5一氨基乙酰丙酸喷施对白蜡树生长的影响

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中图分类号：S792.41 文献标识码：A doi：10.13601/j.issn.1005—5215.2025.04.006

Effect of 5-Aminolevulinic Acid Spraying on Growth of Fraxinus chinensis

Su Na’ ，Hu Huanpingl ，Gai Zhijun² * （1.Binzhou City Bincheng District Forestry Technology Service Center，Binzhou 25660o，China; 2.Binzhou City Bincheng District Government Affairs Service Center，Binzhou 2566Oo，China）

Abstract5-Aminolevulinic acid is widely used in plant growth regulationand nutrition supplement，which can promote plant growthand development and improvethe stress resistance of trees.In order to explore the effct of 5- Aminolevulinic acid on the growth and development of Fraxinus chinensis，Fraxinus chinensis in Binzhou City of Shandong Province was taken as the research object.The indexes of growth and development，photosynthetic pigment and enzyme activityof Fraxinus chinensis under different 5-Aminolevulinic acid concentrations were compared by experiment. The results showed that 5-Aminolevulinic acid had a significant effect on the growth of Fraxinus chinensis. With the increase of the mass concentration of 5-Aminolevulinicacid，the plant height，ground diameter， aboveground biomass，underground biomass，enzyme activity and osmotic adjustment substances of Fraxinus chinensis showed a trend of increasing first and then decreasing. When the massconcentration of 5-Aminolevulinic acid was 60mg⋅L-1 and 90mg⋅L-1 ，the growth of Fraxinus chinensis was better. When the mass concentration of 5- Aminolevulinic acid was 60mg⋅L-1 ，the photosynthesis，enzyme activity and the mass fraction of osmotic adjustment substance of Fraxinuschinensis were the highest.

Key Words5-ALA;photosynthetic characteristics;enzyme activity;0smotic adjustment substances;Binzhou

5一氨基乙酰丙酸（简称5一ALA）是一种重要的生物活性物质，广泛用于植物生长调节和营养补充，是血红素、叶绿素和维生素B12等合成的必需前体，对植物光合作用和细胞能量代谢具有重要影响[1]。（剩余5342字）