Relationship between leaf flavonoid content and soil nutrient stoichiometry across different ages of leaf-used Ginkgo biloba L.

doi:10.14088/j.cnki.issn0439-8114.2026.06.021

Abstract

Abstract: Leaf-used Ginkgo biloba L. across different growth ages in Enshi, Hubei Province was used as the research material. One-way analysis of variance was performed to examine variations in leaf flavonoid contents, and redundancy analysis (RDA) was conducted to determine the dominant soil nutrient drivers of flavonoid accumulation. The results showed that the contents of quercetin, kaempferol, isorhamnetin and total flavonol glycosides in Ginkgo biloba leaves across different growth years ranged from 0.21% to 0.33%, 0.22% to 0.33%, 0.020% to 0.033% and 1.15% to 1.59%, respectively. Four-year-old Ginkgo biloba trees exhibited the highest soil nutrient contents. The stoichiometric ratios of C∶N, C∶P, and N∶P in soils under different ages of Ginkgo biloba ranged from 6.99 to 8.30, 13.24 to 29.60, and 1.67 to 3.57, respectively. RDA indicated that soil total nitrogen and organic matter were the dominant factors affecting flavonoid contents. The growth of Ginkgo biloba was limited by nitrogen availability, and appropriate nitrogen fertilizer should be applied in artificial cultivation.

Key words: flavonoid content, leaf-used Ginkgo biloba L., soil nutrients, ecological stoichiometric characteristics

CLC Number:

S567

DUAN Yuan-yuan, WANG Fan-fan, TANG Tao, GUO Jie, WANG Xiao-yue, ZHOU Wu-xian, YOU Jing-mao. Relationship between leaf flavonoid content and soil nutrient stoichiometry across different ages of leaf-used Ginkgo biloba L.[J]. HUBEI AGRICULTURAL SCIENCES, 2026, 65(6): 128-132.

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