AMOUNTS OF ORGANIC CONSTITUENTS IN TOMATO CULTIVATED IN OPEN AND CLOSED HYDROPONIC SYSTEMS

F. Lippert
Tomato fruit, cultivated in four different hydroponic systems and in soil, were analysed for quality components such as dry matter, total sugars, organic acids and ascorbic acid. The type of the hydroponic systems, based on rockwool and expanded clay as substrates with and without recirculating nutrient solution, has no effect on the amounts of organic constituents. The soil culture system, however, yielded fruit with significantly lower amounts of all investigated compounds compared to the hydroponic systems.

Possible factors influencing the amount of these organic constituents in tomato fruit, notably irradiance, are discussed.

Lippert, F. (1993). AMOUNTS OF ORGANIC CONSTITUENTS IN TOMATO CULTIVATED IN OPEN AND CLOSED HYDROPONIC SYSTEMS. Acta Hortic. 339, 113-124
DOI: 10.17660/ActaHortic.1993.339.10
https://doi.org/10.17660/ActaHortic.1993.339.10
Dry matter, carbohydrate, organic acid, ascorbic acid

Acta Horticulturae