Hybrid Tomato Response to Fertigation Under Greenhouse Conditions

Abstract • Plant height, stem girth, leaf area index, yield and dry fruit biomass are affected by fertilizer rate, irrigation regime, genotype and micro-climate of the greenhouse and its interactions. • Plant height, stem girth, leaf area index, yield and dry fruit biomass increased with increased fertilizer rates and irrigation regime. • The combination of 100% fertilizer rate by 100% irrigation regime best supported stem girth and dry fruit biomass under micro-climate 1 and 2. • A strong negative correlation (-0.718) existed between yield and optimum temperature under micro-climate 1 whereas a weak positive correlation (0.231) existed between yield and optimum temperature under micro-climate 2. • A positive correlation (0.369 and 0.753 respectively) existed between optimum temperature and rootzone pH under micro-climate 1 and 2.