EFFECT OF A MYCORRHIZAL INOCULUM ON THE YIELDING AND CHEMICAL COMPOSITION OF FRUIT FOUR CULTIVARS OF TOMATO

The objective of the study was to determine the yield and chemical composition of the fruits of four tomato cultivars'Growdena F,', 'Torero F-1', 'Listen F-1' and 'Mamirio F-1' 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 m(2). 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 F-1' cv. and lowest yields produceal plants of 'Mamirio F-1' cv. Tomato plants that received the mycorrhizal inoculum, except cv. 'Torero F-1', produced higher yields than control plants. The fruit of cv. 'Mamirio F-1' had the highest content of dry matter, total sugars, reducing sugars and L-ascorbic acid, nitrates and the lewest weight of fruit.