【摘要】 以“金陵红玉”和“金陵秀玉”2个樱桃番茄品种为试验材料，喷施有机硒肥，设定硒含量为6、12、18、24和30 mg/L 5个水平，在第1穗果实坐果后喷施，每株喷施30 m L，每隔14 d喷施1次，共喷4次，研究不同外源硒肥浓度下番茄生长、产量及果实品质的变化规律。结果表明，12～18 mg/L的外源有机硒肥可有效提高番茄植株氮平衡指数（NBI）、叶绿素（Chl）和黄酮醇（Flav）含量等叶片生理特性，产量及抗坏血酸（As A）、可溶性糖、有机酸及硒含量等品质指标，喷施12 mg/L外源有机硒能显著提高2个樱桃番茄品种的单株产量、果实As A含量、可溶性固形物含量和果实硒含量；不同品种对硒的响应有所差异，喷施18 mg/L外源有机硒肥仅能提高“金陵红玉”品种的单株产量，喷施12 mg/L的外源有机硒肥也只能提高“金陵秀玉”品种的NBI指数。建议在进行高产优质番茄生产时喷施12 mg/L外源有机硒4次；而在富硒番茄生产时建议喷施30 mg/L及以上的外源有机硒，或者喷施12 mg/L外源有机硒，并相应增加喷施次数。更多还原

【Abstract】 Two cherry tomato varieties, “Jinlinghongyu” and “Jinlingxiuyu”, were used to study the changes in tomato growth, yield, and fruit quality under different concentrations of exogenous selenium fertilizer and applied organic selenium fertilizer externally. The selenium content was set at five different levels: 6, 12, 18, 24,and 30 mg/L. Exogenous selenium spraying was applied after the fruit set of the first truss with each plant receiving 30 mL of solution per application, and spraying once every 14 days for four times. The results showed that 12-18 mg/L exogenous organic selenium fertilizer can effectively improve the physiological characteristics of tomato leaves such as nitrogen balance index(NBI), chlorophyll(Chl) and flavonol(Flav), yield and ascorbic acid(AsA) content, soluble sugar, organic acid and selenium content. Spraying 12 mg/L exogenous organic selenium could significantly increase the single plant yield, fruit AsA content, soluble solids content, and fruit selenium contents of two cherry tomato varieties. The response to selenium varied between the two varieties.Foliar application of 18 mg/L organic selenium only increased the yield per plant of “Jinlinghongyu”, and spraying 12 mg/L organic selenium only increased the NBI index of “Jinlingxiuyu”. For producing high-yield and high-quality tomatoes, it is recommended to spray 12 mg/L exogenous organic selenium four times. While for producing selenium-enriched tomatoes, it is recommended to spray 30 mg/L or above of exogenous organic selenium, or spray 12 mg/L organic selenium but increase the spray frequency.更多还原