Articles

Effect of fertigation on the quality of tomato (Solanum lycopersicum)

Article number
1194_27
Pages
181 – 186
Language
English
Abstract
Tomato has a high nutritional value because it is a good source of vitamin A, C and E; carotenoids, particularly lycopene and antioxidant compounds such as phenolics.
Several epidemiological studies have shown the beneficial effect of tomato consumption in the prevention of chronic degenerative diseases such as cancer and cardiovascular disease.
Agronomic factors and especially fertilization practices are important in determining the nutritional quality of the crops.
Therefore, the aim of this study was to evaluate the effect of fertigation on quality of hybrid tomato ‘Galilea’ grown in field under drip irrigation.
The variables evaluated were longitudinal and transverse diameter of the fruit, total soluble solids or °Brix, titratable acidity, lycopene, total phenols, flavonoids and antioxidant activity (DPPH). For the analysis of experimental results, a completely randomized design, analysis of variance and multiple comparison test of Tukey with a significance level of P≤0.05 were used.
No significant differences in fruit size were found and fruit of plants receiving more nitrogen tended to increase the content of titratable acidity.
In general, it was found that potassium and sulfur increased the lycopene content and the fruits fertilized with soil fertilization plus foliar fertilization had higher antioxidant capacity, due to a higher concentration of lycopene, total phenols and flavonoids.

Publication
Authors
J.M. Pinedo-Espinoza, R. Jimenez-Alvarado, C. Sánchez-Castillo, R.G. Campos-Montiel, B. Islas-Rodríguez, G. Aguirre-Alvarez, A.D. Hernández-Fuentes
Keywords
tomato, fertigation, antioxidants
Full text
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