The Dependent Chemical Composition of Tomatoes Grown in High Plastic Tunnels From the Plant Growth Medium and the Supply of Heat

AUTHOR(S):

Kalina Sikorska-Zimny, Waldemar Kowalczyk, Paweł Konopacki, Ryszard Hołownicki

TITLE

The Dependent Chemical Composition of Tomatoes Grown in High Plastic Tunnels From the Plant Growth Medium and the Supply of Heat

PDF

ABSTRACT

There is a necessity to reduce cultivation cost, use bio-rationale energy sources, and recycle growing media in greenhouse production of tomato (Solanum lycopersicum L). The experiment was conducted on tomatoes grown in a mix of peat moss with bark or coconut fiber in unheated tunnels fitted with rock-bed heat accumulators. At harvest acidity, vitamin C, total and reducing sugars and lycopene levels were estimated. Tomatoes cultivated with a coconut fiber substrate had a higher content of total acids, reducing sugars and vitamin C. Cultivation of tomato in peat substrate increased total sugar levels in fruit. Type of bio-rationale substrate did not affect tomato fruit chemical composition. There was no effect of heat form rock-accumulator application on chemical composition of tomatoes.

KEYWORDS

- Solanum lycopersicum, lycopene, rock-accumulator; substrate; vitamin C

Cite this paper

Kalina Sikorska-Zimny, Waldemar Kowalczyk, Paweł Konopacki, Ryszard Hołownicki. (2020) The Dependent Chemical Composition of Tomatoes Grown in High Plastic Tunnels From the Plant Growth Medium and the Supply of Heat. International Journal of Environmental Science, 5, 53-62