Selenium (Se) is an essential trace element for humans due to its importance in a number of enzymes. Vegetable grafting is a valuable tool to overcome biotic and/or abiotic issues and to increase vigour, yield traits and fruit quality. The present work aimed at testing both different Se concentrations (0.0, 1.0, 2.0 and 4.0 μmol Se L⁻¹) supplied via fertigation and grafting on cherry tomato in soilless culture. Se at 2.0 μmol L⁻¹ improved total fruit yield by 60.0 % and 31.4 % in ungrafted and grafted plants, respectively as compared to the control. Marketable yield was positively affected by Se-biofortification and grafting. Se at 2.0 μmol L⁻¹ improved N use efficiency by 60.3 % and 31.5 % in ungrafted and grafted plants, respectively. Furthermore, Se at 4.0 μmol L⁻¹ and grafting enhanced fruit firmness, SSC, polyphenol content and total carotenoids. Ascorbic acid and lycopene were enhanced by Se-doses and grafting. Fruit Se concentration in ungrafted plants varied from 0.1 mg kg⁻¹ of dry weight (DW) in the control to 8.9 mg kg⁻¹ DW in plants treated with 4.0 μmol Se L⁻¹. Se fruits concentration in grafted plants ranged from 0.08 in the control to 9.8 mg kg⁻¹ DW in plants treated at 4.0 μmol L⁻¹. Non-grafted and grafted plants manifested an increment in the hazard quotient (HQ_gv) in reaction to Se. HQ_gv fluctuated from 0.002 to 0.353, with a daily intake for Se below the recommended value. Finally, Se-biofortification (at 2.0 or 4.0 μmol L⁻¹) and grafting succeeded in improving tomato plant performance, nutritional and health-promoting compounds.

硒（Se）对人类来说是必需的微量元素，因为它在多种酶中都很重要。蔬菜嫁接是克服生物和/或非生物问题并增加活力，增产性状和水果品质的宝贵工具。本工作旨在测试在无土栽培中通过施肥和嫁接在樱桃番茄上提供的不同硒浓度（0.0、1.0、2.0和4.0μmolSe L ^-1）。与对照相比，在2.0μmolL ^-1的Se下，未嫁接和嫁接的植物的总果实产量分别提高了60.0％和31.4％。硒生物强化和接枝对可销售的产量产生积极影响。硒在2.0μmolL ^-1在未嫁接和嫁接的植物中，氮的利用率分别提高了60.3％和31.5％。此外，Se在4.0μmolL ^-1和接枝可增强果实硬度，SSC，多酚含量和总类胡萝卜素。硒剂量和接枝增强了抗坏血酸和番茄红素的含量。未接枝植物中的水果硒浓度从对照中的0.1 mg kg ^-1干重（DW）到使用4.0μmolSe L ^-1处理的植物中的8.9 mg kg ^-1 DW不等。在移植植物果实硒浓度从0.08范围在控制到9.8毫克千克^-1 DW在4.0微摩尔大号处理的植物^-1。未嫁接和嫁接的植物表现出危险商数的增加（HQ _gv）对硒的反应。HQ _gv从0.002波动至0.353，并且Se的每日摄入量低于建议值。最终，Se-生物强化（2.0或4.0μmolL ^-1）和接枝成功地改善了番茄的生长性能，营养和促进健康的化合物。