Abstract: In order to investigate the relationship between nutrient solution concentration and tomato fruit
comprehensive qualty under substrate cultivation condition in solar greenhouse，this paper took‘Fentailang’as test
material；set up 4 treatments including conventional nutrient solution concentration（CK），130% of the nutrient solution
concentration of the CK（T1），150% of the nutrient solution concentration of the CK（T2）and 200% nutrient solution
concentration of the CK（T3）；and studied the effects of different nutrient solution concentrations on 12 quality indexes
of tomato fruit．The results showed that along with the increase of nutrient solution concentration，the single tomato fresh
fruit weight and dry weight，fruit shape index，fruit hardness，sugar-acid ratio，soluble solids content，VC content and
soluble protein content of tomato fruits showed a changing tendency of first increasing then decreasing．The soluble sugar
content and nitrate content showed a linear increasing tendency．The paper carried out comprehensive evaluation using
principal component analysis and obtained the synthesis score as T2 ＞ T1 ＞ T3 ＞ CK．The comprehensive quality of
tomato fruit was the best when treated with 150% of the conventional nutrient solution concentration．

Key words: tomato, solar greenhouse, nutrient solution concentration, comprehensive quality, principal component analysis

摘要： 为探究日光温室基质栽培条件下营养液浓度与番茄果实综合品质的关系，以粉太郎为试材，设置常规营养液浓度
（CK）、营养液浓度为CK 的130%（T1）、营养液浓度为CK 的150%（T2）、营养液浓度为CK 的200%（T3）4 个处理，
研究不同营养液浓度对番茄果实12 个品质指标的影响。结果表明：随着营养液浓度的升高，番茄果实的单果鲜质量和干质
量、果形指数、果实硬度、糖酸比、可溶性固形物含量、VC 含量、可溶性蛋白含量均呈先升高后降低的变化趋势，可溶性
糖含量和硝酸盐含量呈线性升高。利用主成分分析进行综合评价，综合得分依次为T2 ＞ T1 ＞ T3 ＞ CK，即营养液浓度为
常规营养液的150% 时番茄果实综合品质最佳。

关键词: 番茄, 日光温室, 营养液浓度, 综合品质, 主成分分析