Influence of Potassium and Genotype on Vitamin E Content and Reducing Sugar of Tomato Fruits

被引：37

作者：

Caretto, Sofia ^{[1
]}

Parente, Angelo ^{[2
]}

Serio, Francesco ^{[2
]}

Santamaria, Pietro ^{[3
]}

机构：

[1] CNR, Ist Sci Prod Alimentari, I-73100 Lecce, Italy

[2] CNR, Ist Sci Prod Alimentari, I-70126 Bari, Italy

[3] Univ Bari, Dipartimento Sci Prod Vegetali, I-70126 Bari, Italy

来源：

HORTSCIENCE | 2008年 / 43卷 / 07期

关键词：

soilless system; Solanum lycopersicum L; tocopherol; total soluble solids; titratable acidity; high pigment;

D O I：

10.21273/HORTSCI.43.7.2048

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

This research was conducted to determine the effect of potassium (K) and cultivar on important quality traits of tomato (Solanum lycopersicum L.), including reducing sugar, titratable acidity, and vitamin E content. Tomato plants were grown in a soilless system. Three K levels (low, middle, and high equal to 150, 300, and 450 mg.L-1 in the nutrient solution, respectively) and three cultivars (SVR, Kabiria, and Esperanza) were compared. Among cultivars, Kabiria, which is characterized by smaller fruits, showed 23% higher total soluble solids (TSS) than the average of the other cultivars. 'Kabiria' also showed a total tocopherol (vitamin E) content (18.5 mg.kg(-1)), markedly higher than SVR and Esperanza cultivars (12.2 and 10.3 mg.kg(-1), respectively). Increased K levels in the nutrient solution resulted in increased contents of TSS, reducing sugar contents and titratable acidity in tomato fruits. Also, the vitamin E content of tomato fruits was significantly affected by differing K concentrations in the nutrient solution.

引用

页码：2048 / 2051

页数：4

共 32 条

[1] EFFECTS OF ENVIRONMENT ON THE UPTAKE AND DISTRIBUTION OF CALCIUM IN TOMATO AND ON THE INCIDENCE OF BLOSSOM-END ROT [J].