Aims

The aim of the study is to know about which soil factors could influence the accumulation of hesperidin, nobiletin and tangeretin in pericarps of Citrus reticulata ‘Chachi’ (Citrus reticulata cv. Chachiensis).

Methods

A total of 150 soil samples from 15 profiles and 60 pericarp samples were collected at different orchards cultivated Citrus reticulata ‘Chachi’. The linear regression models, random forest models and structural equation models were established to explore the relationship between soil factors and the three medicinal components. A 2-year field control experiments were designed to verify the direct impact of key elements on hesperidin, nobiletin and tangeretin in pericarps.

Results

Soil potassium (K), calcium (Ca), magnesium (Mg), manganese (Mn), pH, Cation exchange capacity (CEC), Salinity and Sand showed the main influences on hesperidin, nobiletin and tangeretin, in which soil elements, particularly K, Ca, Mg and Mn, were relatively important.

Conclusions

Adjusting the absorption of elements by Citrus reticulata ‘Chachi’ is one of the effective and convenient methods to increase or decrease the three medicinal components in pericarps.

中文翻译：

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评估选定土壤因子对柑橘“Chachi”果皮中橙皮苷、川陈皮素和橘皮素积累影响的初步研究

目标

本研究的目的是了解哪些土壤因素会影响柑橘'Chachi'（Citrus reticulata cv. Chachiensis）果皮中橙皮苷、川陈皮素和橘皮素的积累。

方法

在不同的柑橘“茶池”果园采集了 15 个剖面的 150 个土壤样品和 60 个果皮样品。建立线性回归模型、随机森林模型和结构方程模型来探讨土壤因子与三种药用成分之间的关​​系。设计了为期2年的田间对照实验，验证了关键元素对果皮中橙皮苷、川陈皮素和橘皮素的直接影响。

结果

土壤钾（K）、钙（Ca）、镁（Mg）、锰（Mn）、pH、阳离子交换量（CEC）、盐度和沙子对橙皮苷、川陈皮素和橘皮素的影响主要，其中土壤元素，特别是K、Ca、Mg 和 Mn 相对重要。

结论

调节茶橘对元素的吸收是增加或减少果皮中三种药用成分的有效、便捷的方法之一。