| 施用CO2对番茄‘巴特’水分利用效率和产量的影响 |
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| 引用本文：袁婷婷，王停停，张 玲，李亚灵，温祥珍.施用CO2对番茄‘巴特’水分利用效率和产量的影响[J].西北农业学报,2017,26(7):1054~1061 |
| DOI:10.7606/j.issn.1004-1389.2017.07.014 |
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| 基金项目:山西省煤基重点科技攻关项目（FT201402-05）；国家自然科学基金重点项目（661233006）；山西省科技攻关项目（20130311010-1）。 |
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| 中文摘要:以番茄品种‘巴特’为材料，在2个自然光照人工气候室内（长2.2 m、宽1.2 m、高1.5 m），采用基质盆栽法（基质按质量比配，腐熟牛粪∶炉灰=1∶1），研究施用CO2对番茄植株水分利用效率的影响。试验采用钢瓶进行CO2补充供应（体积分数为500 μL/L），以不施用CO2为对照；3个水分处理分别为低水（S）处理300 mL、中水（M）处理400 mL、高水（H）处理600 mL（每3 d灌水1次），每盆（1株）精量灌水。结果表明：增施CO2高水H、中水M处理水分利用效率分别较对照提高58%、38%，低水S处理仅增加8%，这种效应也反映到作物的生物量表现上，即番茄植株干物质量在高水、中水、低水处理下分别比对照处理提高30%、23%、9%。同时生理测定结果表明，水分供应充足条件下（M、H），增施CO2的番茄植株其超氧化物歧化酶（SOD）和过氧化物酶（POD）活性提高。因此认为水分充足下，增施CO2对于提高产量和水分利用效率是一个有效的措施。 |
| 中文关键词:CO2 灌水量 番茄 生物量 水分利用效率 |
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| Effect of CO2 Enrichment on Water Use Efficiency and Yield in ‘Bate’ Tomato |
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| Abstract:This experiment was conducted with a tomato variety ‘Bate’ in two growth chambers with natural sunlight . The cow manure and slag(1∶1,mass ratio) were used in this study as substrate .The effect of CO2 enrichment on water use efficiency in tomato was studied in this experiment. CO2-enrichment was accomplished with pressured CO2 in a steel cylinder at the concentration of 500 μL/L,while no CO2-enrichment was used as the control. The potted tomato plants received three levels of irrigation regime treatments,which were 300 mL per pot(low),400 mL per pot(middle),600 mL per pot(high).The tomato plants were watered once every three days. The results showed that CO2 enrichment increased the water use efficiency in ‘Bate’tomato. The tomato plants with CO2 enrichment showed 58% higher water use efficiency than control at 600 mL per pot(high),38% higher at 400 mL per pot(middle) ,and 8% higher at 300 mL per pot(low). The results from this study showed that the improvement of water use efficiency by CO2 enrichment in ‘Bate’was more ovbious under adequate water supply. This improved water use efficiency was showed in plant dry mass ,and fruit dry mass.CO2 enrichment increased the total plant dry mass by 30% at 600 mL per pot(high),by 23% at 400 mL per pot(middle),and by 9% at 300 mL per pot(low). CO2 enrichment significantly increased the enzymatic activities of superoxide dismutase and peroxidase at 600 mL per pot(high) and 400 mL per pot(middle). The CO2 enrichment with abundant water supply could be a highly effective tool for increasing fruit yield and profitability. |
| keywords:CO2 Irrigation Tomato Dry-mass Water use efficiency |
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