Root-zone drying regulates the hydrothermal environment of citrus, synergistically enhancing fruit quality and water use efficiency

Published: 28 January 2026| Version 1 | DOI: 10.17632/v4dkr54j52.1
Contributor:
志坤 黄

Description

The dataset encompasses key soil physicochemical properties and leaf physiological parameters collected from a controlled greenhouse drip irrigation experiment on 'Ehime 28' citrus trees conducted in 2021–2022. Soil measurements include accumulated soil temperature (SAT, °C·d), available phosphorus (SAP, mg·kg⁻¹), available potassium (SAK, mg·kg⁻¹), acid phosphatase activity (ACP, mg·g⁻¹·d⁻¹), sucrase activity (SC, mg·g⁻¹·d⁻¹), and urease activity (UE, mg·g⁻¹·d⁻¹) across different deficit irrigation treatments during fruit enlargement (Stage III) and color-turning/sugar accumulation (Stage IV) periods. Leaf physiological data comprise activities of superoxide dismutase (SOD, U·g⁻¹), peroxidase (POD, U·g⁻¹), catalase (CAT, U·g⁻¹), and leaf potassium content (LK, %). These parameters were analyzed to evaluate the regulatory effects of regulated deficit irrigation on root-zone hydrothermal conditions, nutrient availability, enzymatic activities, and antioxidant responses, providing insights into soil-plant interactions under water stress.

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Design of Field Experiment

Funders

  • Natural Science Foundation of Hubei Province
    Grant ID: 2025AFB103
  • Natural Science Foundation of Hubei Province
    Grant ID: 2024AFB320
  • National Natural Science Foundation of China
    Grant ID: 42477086
  • Joint Fund Project of the National Natural Science Foundation of China
    Grant ID: U24A20180
  • China Three Gorges University
    Hubei, China

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