Abstract

• This experiment was conducted to evaluate the effect of amount of water on the vegetative and reproductive growth of tomato and to assess the suitable irrigation to improve the economic efficiency of tomato production. Present investigation was carried out during April to July, 2019 at Oakshitpin Village, Padaung Township, Bago Region to observe the effects of variable water of tomato crop. The four treatments of water requirements were used. This experiment was treated with T1 (0.05-0.27 L), T2 (0.21 - 2.07 L), T3 (0.36 - 2.22 L) and T4 (0.50-2.37 L). Each treatment had five replications set up in Randomized Completely Block Design (RCRD). Tomato was evaluated in farmer's field with farmer’s participation under plastic house condition for yield potential and other yield characters using the effect of amount of water during rainy season. The germination rate of Solanum lycopersicum L. was 75.60 %. Vegetative growth such as plant height (17.21 cm), number of leaves per plant (17.97), leaf length (12.22 cm) and single leaf area (78.95 cm2 ) were the best in T2 (0.21 - 2.07 L). Reproductive growth as earliest first flowering days (36 DAT), number of clusters per plant (7), number of fruits per cluster (6.9), single fruit diameter (5.01 cm), fruits weight per plant (282.10 g) and fruits yield (4798.74 kg ha-1 ) were highest in T2 (0.21 - 2.07 L). T2 (0.21 - 2.07 L) could be recommended for commercial production under plastic house condition during rainy season.