| 引用本文: | 赵君涵,佘冬立,张俐.地下水埋深及矿化度变化对番茄产量及品质的影响[J].灌溉排水学报,0,():-. |
| zhaojunhan,shedongli,zhangli.地下水埋深及矿化度变化对番茄产量及品质的影响[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】本文探究了地下水矿化度和埋深的变化对番茄的产量及品质的影响。【方法】采用土柱测桶实验，试验配制3种浓度（0、2、4 g/L）的NaCl溶液，并设计3种地下水埋深深度（90、70、50 cm），分别用以模拟不同矿化度的地下水及其埋深，对番茄的产量及品质进行测定，利用综合主成分分析的方法对番茄进行评价。【结果】试验结果显示：番茄单株产量、收获指数、平均果质量及果色指数（TCI）均随地下水矿化度增加而显著减小，随地下水埋深增加而显著增加；而番茄维生素C、可溶性糖、总酸和可溶性固形物含量均随地下水矿化度增加而显著增加，随地下水埋深增加而显著减少。综合主成分分析结果显示，番茄产量及品质在地下水相对深埋及矿化度低的情况下表现较优，90/0（地下水埋深：cm/矿化度：g?L-1）处理下得分最高。【结论】表明盐分和地下水埋深对番茄的产量及品质均有较大影响，低盐深埋有利于番茄产量提高，但高盐浅埋对于番茄营养品质改善有促进作用，适宜的矿化度和埋深促进番茄的生长发育，使产量和品质都能达到较优水平。 |
| 关键词: 地下水埋深；盐分；番茄；主成分分析 |
| DOI： |
| 分类号:S641.2；S273.4 |
| 基金项目:国家自然科学基金项目（42177393）；江苏省水利科技项目(2021054) |
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| Effects of Groundwater Depth and Salinity Change on the Yield and Quality of Tomato. |
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zhaojunhan, shedongli, zhangli
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College of Agricultural Science and Engineering, Hohai University
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| Abstract: |
| 【Objective】The groundwater level in the coastal saline-alkaline soil area changes frequently, and the water and salt transport is complicated.The paper simulates the dynamic changes of groundwater depth and salinity in coastal areas, and explores the impact of changes in groundwater salinity and depth on the yield and quality of tomatoes.【Method】Using soil column to measure barrel experiment. The experiment prepared 3 kinds of NaCl solutions with concentration (0, 2, 4 g/L), and designed 3 kinds of buried depths of drainage pipes (90, 70, 50 cm) to simulate groundwater with different salinity and its buried depth.The yield and quality of tomatoes were measured, and the method of comprehensive principal component analysis was used to evaluate tomatoes【Result】The test results showed that: tomato yield, harvest index, average fruit weight and fruit color index (TCI) decreased significantly with the increase of groundwater salinity, and increased significantly with the increase of groundwater depth, these four indicators all reach the maximum value under 90/0 (groundwater depth/salinity) treatment.But vitamin C, soluble sugar, total acid and soluble solids content all increased significantly with the increase of groundwater salinity, and decreased significantly with the increase of groundwater depth. These four indicators reached the maximum under 50/4 treatment.【Conclusion】The results of the comprehensive principal component analysis show that the comprehensive quality of tomato performs better when the groundwater is relatively deep and the salinity is low, and the score is the highest under the 90/0 treatment. |
| Key words: groundwater depth ; salinity ; tomato ; principal component analysis and evaluation |
