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<p>By combining the benefits of several plants, grafting can accelerate plant reproduction and enhance plant growth, productivity, and disease resistance. The physiological and selenium accumulation characteristics of progeny seedlings produced by continuous grafting in 10&#xa0;mg&#xa0;kg<sup>−1</sup> selenium soil were studied in a pot experiment with tamarillo rootstocks serving as scions and tomato seedlings as rootstocks in order to elucidate the effect of continuous grafting on selenium (Se) uptake. The outcomes showed that post-grafting production biomass and soluble protein content were enhanced by serial grafting. Several grafting generations led to a large increase in the levels of carotenoids, chlorophyll a, and chlorophyll b. Furthermore, when the number of grafts increased, peroxidase (POD) and catalase (CAT) activities rose but superoxide dismutase (SOD) activity fell. In addition, the grafting treatments significantly raised the root’s selenium content; in the triple grafting treatment (G3), this rise was 66.43% greater than in the control. Furthermore, compared to the control, G3 produced comparatively high selenium accumulation in the stem and root, with increases of 22.36% and 74.48%, respectively, which was advantageous for selenium accumulation in the grafted plants’ offspring. Nonetheless, there was a drop in the translocation coefficient, which partially prevented selenium from being transferred to the aboveground. The results of this study support a novel approach to using tamarillo as rootstocks, and we have determined that continuous grafting significantly improves the physiological indicators and selenium content of progeny.</p>

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Effects of Continuous Grafting on the Growth and Selenium Accumulation Characteristics in the Post-Generations of Tomato

  • 期刊论文

  • 发表日期：

    2025年6月2日

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  • Shiling Meng,
  • Xiaoli Song,
  • Wende Zhou,
  • Juan Huang,
  • Yatian Zhao,
  • Wanjia Tang,
  • Yi Tang,
  • Bo Sun,
  • Huanxiu Li,
  • Zhi Huang

摘要

By combining the benefits of several plants, grafting can accelerate plant reproduction and enhance plant growth, productivity, and disease resistance. The physiological and selenium accumulation characteristics of progeny seedlings produced by continuous grafting in 10 mg kg−1 selenium soil were studied in a pot experiment with tamarillo rootstocks serving as scions and tomato seedlings as rootstocks in order to elucidate the effect of continuous grafting on selenium (Se) uptake. The outcomes showed that post-grafting production biomass and soluble protein content were enhanced by serial grafting. Several grafting generations led to a large increase in the levels of carotenoids, chlorophyll a, and chlorophyll b. Furthermore, when the number of grafts increased, peroxidase (POD) and catalase (CAT) activities rose but superoxide dismutase (SOD) activity fell. In addition, the grafting treatments significantly raised the root’s selenium content; in the triple grafting treatment (G3), this rise was 66.43% greater than in the control. Furthermore, compared to the control, G3 produced comparatively high selenium accumulation in the stem and root, with increases of 22.36% and 74.48%, respectively, which was advantageous for selenium accumulation in the grafted plants’ offspring. Nonetheless, there was a drop in the translocation coefficient, which partially prevented selenium from being transferred to the aboveground. The results of this study support a novel approach to using tamarillo as rootstocks, and we have determined that continuous grafting significantly improves the physiological indicators and selenium content of progeny.