EFFECT OF CHELATED IRON AND SILICON ON THE YIELD AND QUALITY OF TOMATO PLANTS GROWN UNDER SEMI-ARID CONDITIONS

Abstract

The influence of chelated iron (0, 250 and 500 mg·L–1 as Fe-EDDHA 6%) and silicon (0, 2, 4 mmol·L–1 as K2SiO3) on the yield and quality of tomato (Solanum lycopersicum L.), Strain B cultivar, were investigated under semi-arid conditions in Ras Sudr region, Egypt, in years 2013–2014. A significant influence of chelated iron and silicon applications on tomato growth, yield and quality were observed. The highest plant growth, leaf mineral contents (N, P and K), vitamin C and Ca contents in fruit, fruit firmness, early and total yield were observed in plants which treated with 500 mg·L–1 chelated iron and 2 and 4 mmol·L–1 silicon. Meanwhile, these treatments decreased the proline content of leaves and T.S.S content of fruit.

Keywords

• Solanum lycopersicum
• Fe-EDDHA
• potassium silicate
• proline
• fruit weight