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<p>Purpose: To analyze (i) the quality of four kiwifruit varieties (Hongyang, Jinyan, Jinguo, and Cuixiang), (ii) the relationship between kiwifruit nutrition content and soil elements, and (iii) the relationship between kiwifruit mineral content and soil elements. Method: 120 fruit samples are collected from representative orchards in Qianjiang District, Chongqing, and their proximate composition, amino acid profiles, and mineral nutrition are evaluated. The mineral elements of different tissues (roots, twigs, leaves, and fruits) of 20 kiwifruit trees are determined. The correlation, bioconcentration, and translocation analysis are performed between pairs of soil-fruit or soil-plant matter content. Results: Hongyang exhibits the best comprehensive nutritional quality, while the amino acid composition of Cuixiang is closest to the ideal protein. The average mineral element contents in kiwifruit are K &gt; Ca &gt; P &gt; Mg &gt; Fe &gt; Mn &gt; Se = Mo &gt; Ge. There are 206 correlations and 49 significant (<i>P</i> ≤ 0.05) correlations between soil elements and the proximate composition and mineral nutrition of kiwifruit respectively. The bioconcentration factors show that the enrichment ability of kiwifruit is P &gt; K &gt; Ca &gt; Mg &gt; Se &gt; Mo &gt; Mn &gt; Ge &gt; Fe. Kiwifruit has a strong ability to translocate these elements (P, K, Ca, Mg, Mn, Ge, Se) from the root to the aboveground tissue. Soil K and trace elements (Se, Cd, etc.) have the greatest influence on the quality of kiwifruit. The content of sugar as an important economic index is significantly promoted by the available Fe. Conclusion: Our study highlights the distinct quality characteristics of four kiwifruit cultivars, among which Hongyang can be recommended for promotion and cultivation in Qianjiang area. Soil elements such as K and available Fe are identified as the key factors affecting the quality of kiwifruit, providing scientific evidence for optimizing cultivar selection and fertilization practices to enhance nutritional value and economic yield.</p>

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Quality Analysis of Different Kiwifruit Cultivars and Their Relationship with Soil Elements

  • 期刊论文

  • 发表日期：

    2025年5月6日

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  • Fenglei Zhang,
  • Peidong Liu,
  • Xiaoxiao Zhou,
  • Mingshu Yan,
  • Yuxin Jia,
  • Xianglun Ding,
  • Jiaomei Zhang,
  • Airong Huang,
  • Hai Deng,
  • Zhenglin Zhu,
  • Pan Dong

摘要

Purpose: To analyze (i) the quality of four kiwifruit varieties (Hongyang, Jinyan, Jinguo, and Cuixiang), (ii) the relationship between kiwifruit nutrition content and soil elements, and (iii) the relationship between kiwifruit mineral content and soil elements. Method: 120 fruit samples are collected from representative orchards in Qianjiang District, Chongqing, and their proximate composition, amino acid profiles, and mineral nutrition are evaluated. The mineral elements of different tissues (roots, twigs, leaves, and fruits) of 20 kiwifruit trees are determined. The correlation, bioconcentration, and translocation analysis are performed between pairs of soil-fruit or soil-plant matter content. Results: Hongyang exhibits the best comprehensive nutritional quality, while the amino acid composition of Cuixiang is closest to the ideal protein. The average mineral element contents in kiwifruit are K > Ca > P > Mg > Fe > Mn > Se = Mo > Ge. There are 206 correlations and 49 significant (P ≤ 0.05) correlations between soil elements and the proximate composition and mineral nutrition of kiwifruit respectively. The bioconcentration factors show that the enrichment ability of kiwifruit is P > K > Ca > Mg > Se > Mo > Mn > Ge > Fe. Kiwifruit has a strong ability to translocate these elements (P, K, Ca, Mg, Mn, Ge, Se) from the root to the aboveground tissue. Soil K and trace elements (Se, Cd, etc.) have the greatest influence on the quality of kiwifruit. The content of sugar as an important economic index is significantly promoted by the available Fe. Conclusion: Our study highlights the distinct quality characteristics of four kiwifruit cultivars, among which Hongyang can be recommended for promotion and cultivation in Qianjiang area. Soil elements such as K and available Fe are identified as the key factors affecting the quality of kiwifruit, providing scientific evidence for optimizing cultivar selection and fertilization practices to enhance nutritional value and economic yield.