Naslov
Quality of Tomatoes Grown on Different Substrates and Harvested in Three Harvest Periods

Autori
Voća, Sandra ; Dobričević, Nadica ; Šindrak, Zoran ; Borošić, Josip ; Benko, Božidar

Izvornik
Deutsche Lebensmittel-Rundschau (0012-0413) 103 (2007), 9; 431-437

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
tomato; chemical composition; hydroponic system; substrates

Sažetak
Research was carried out on tomato cultivar "Belle" grown in a hydroponic system in four growing substrates (soil, perlite, expanded clay and rockwool) during two years. Depending on growing substrate, average fresh fruit weights and average total fruit yields ranged from 168.0 to 216.9 g and from 33.7 to 47.8 kg/m2 in the first year, and from 185.7 to 201.0 g and 29.10 to 42.14 kg/m2 in the second year, respectively. Fruits were analyzed for the content of dry matter (%), total soluble solids (°Brix), total acidity (g/kg citric acid), pH, NaCl (%) and ascorbic acid (mg/100 g FW). Awerage dry matter content ranged from 4.60 to 6.61%, total acids ranged from 2.4 to 5.0 g/kg, total soluble solids from 3.0 to 4.0°Brix, ratio of total soluble solids to total acids was from 7.58 to 18.69, pH values were from 4.15 to 4.72, ascorbic acid 12.67 to 24.47 (mg/100 g FW), NaCl from 0.09 to 0.45%. Results of chemical analyses indicate good quality of tomato fruits from plants grown in soil as well as of those grown in other soilless substrates. Tomatoes produced in different substrates were of uniform quality.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA