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作 者 ：唐晓伟, 刘明池, 郝静, 王文琪

期 刊 ：植物营养与肥料学报 2010年 16卷 4期 页码：970-977

关键词：番茄；调亏灌溉；品质；风味组分；

Keywords:tomato, regulated deficit irrigation, quality, flavor components,

摘 要 ：为优化番茄调亏灌溉条件，设计了轻度、中度和重度调亏灌溉处理（浇水量分别是正常灌水的75%、50%和25%），研究不同调亏灌溉处理对番茄果实的含水量、可溶性固形物、可滴定酸、糖酸比和Vc等营养成分和风味组分的变化。结果表明，果实含水量随着调亏灌溉程度的加深而降低，重度和中度处理＜轻度处理＜对照; 可溶性固形物为重度和中度处理＞轻度处理＞对照。可滴定酸是中度调亏灌溉时含量明显高于重度调亏灌溉和对照; 糖酸比在重度调亏灌溉时最高，明显高于对照，但与中度和轻度调亏灌溉间差异不显著; Vc含量以重度调亏灌溉的最高。对芳香组分的测定发现，调亏灌溉程度对风味组分也有很大影响。其中，中度调亏灌溉检测出的特征效应化合物最多，正常灌水条件下最少。

Abstract:In order to select the best conditions of deficit irrigation, the three irrigation levels: the mild, moderate and severe irrigation levels were designed to study on the influences of regulated deficit irrigation on the nutrition quality and flavour components of tomato fruits. The results show that the water content of the fruits is decreased, while the contents of vitamin C, soluble solids and the sugar to acid ratio are increased significantly in severe deficit irrigation condition, and meanwhile, the titratable acid content is the highest in the moderate irrigation condition. 113 kinds of flavor components are identified in four water levels including the control, among these components 11 kinds of tomato character impact compounds such as 1-Pentanol, 2-Isobutylthiazole, Hexanal, 2-Hexenal, beta-Citral,(E)-2-Heptenal, Methyl Salicylate, 6,10-dimethyl-5,9-Undecadien-2-one, 6-methyl-5-Hepten-2-one, 1-Penten-3-one and beta-Ionone. The amounts of character impact compounds are the highest in the moderate water level, while the least in the control level. The amount of aroma component in the severe level is more than those of other treatments.

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