The objective of the study was to determine the yield and chemical composition of the fruits of four tomato cultivars‘Growdena F₁’, ‘Torero F₁’, ‘Listell F₁’ and ‘Mamirio F₁’ grown in coir fibre inoculated with mycorrhizal fungi of the genus Glomus. The mycorrhizal inoculum was applied directly to the coir fibre, at 20 g per m². The content of dry matter, total sugars, reducing sugars, L-ascorbic acid and organic acids (expressed as malic acid) in tomato fruit was determined. The total and marketable yields of tomato fruits were influenced by the cultivar the highest yields were abtained from plants of ‘Torrero F₁’ cv. and lowest yields produceal plants of‘Mamirio F₁’ cv. Tomato plants that received the mycorrhizal inoculum, except cv. ‘Torero F₁’, produced higher yields than control plants. The fruit of cv. ‘Mamirio F₁’ had the highest content of dry matter, total sugars, reducing sugars and L-ascorbic acid, nitrates and the lewest weight of fruit.

61-68