| 摘要: |
| 【目的】研究营养液滴灌频率对温室番茄植株生长及果实产量、品质的影响，为设施番茄实际生产中营养液滴灌频率的合理安排、提高番茄产量和品质提供理论依据。【方法】以番茄（Lycopersicon esculentum）“金鹏一号”为试材，采用槽式栽培方法，以常规滴灌施肥为对照，设置1 d 1次、3 d 1次、5 d 1次、7 d 1次(T1、T2、T3、T4)4个营养液滴灌频率，测定植株营养生长期的株高、茎粗以及成熟果实内可溶性总糖、有机酸、维生素C、可溶性固形物、可溶性蛋白及番茄红素含量，并比较各处理的果实产量。【结果】营养液滴灌频率对植株株高影响不显著，但对植株茎粗影响显著，以T2处理茎粗最大，比对照增加0.82 mm；与对照相比，T1、T2、T3、T4处理番茄果实产量分别提高 37.0%，46.1%，36.5%和35.2%，但不同滴灌频率处理对番茄单株产量、果实产量无显著影响，且随着营养液滴灌频率的增加，番茄果实单果质量、单株产量及果实产量均呈先升后降的变化趋势，以T2处理果实产量最高；但T2处理果实糖/酸值最低，口感差；T3处理果实可溶性总糖和可溶性蛋白含量、糖/酸值最大，分别比对照提高了10.01%，22.41%，22.22%，果实口感好，风味较佳，且产量与T2处理差异不显著。【结论】番茄最佳营养液滴灌频率为每5 d 1次，该处理可以同时促进果实产量及品质提高。 |
| 关键词: 营养液 滴灌频率 番茄 产量 果实品质 |
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| 基金项目:国家大宗蔬菜产业技术体系项目（CARS-25-D-02）；陕西省农业系统专项资金项目 |
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| Effects of nutrition solution drip irrigation frequency on plant growth and fruit quality of greenhouse tomato |
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SUN Li-li,ZOU Zhi-rong,HAN Li-rong,et al
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| Abstract: |
| 【Objective】Effects of nutrition solution drip irrigation frequency on plant growth,yield and fruit quality of tomato were investigated.【Method】Four nutrition solution drip irrigation frequencies,once per day (T1),once every 3 days (T2),once every 5 days (T3),and once every 7 days (T4),were tested for Lycopersicon esculentum ‘Jinpeng 1’ plants cultivated in trough with conventional drip irrigation and fertilization as the control.Plant height,stem,contents of soluble sugar,organic acids,vitamin C,solid and lycopene and fruit yield were measured and compared.【Result】Nutrient fluid drip irrigation frequency had no significant effect on plant height.But it had significant effect on stem diameter,T2 had the largest stem diameter,which increased by 0.82 mm compared to the control.The yields of tomatoes in T1,T2,T3,and T4 were increased by 37.0%,46.1%,36.5%,and 35.2%,respectively.But the effects on fruit yield per plant and single fruit weight were insignificant,and they increased firstly and then decreased as the increase of drip irrigation frequency.Fruits of T2 had the highest yield,but with the lowest sugar/acid ratio and poor taste.T3 fruits had better taste and the highest contents of total soluble sugar and soluble protein and sugar/acid ratio,which were increased by 10.01%,22.41%,and 22.22%,respectively.【Conclusion】Dripping once every 5 days（T3） was recommended to promote yield and quality of greenhouse tomato. |
| Key words: nutrition solution drip irrigation frequency tomato yield fruit quality |
