PJB-2013-232
EFFECTS OF NAPHTHALENE ACETIC ACID AND CALCIUM CHLORIDE APPLICATION ON NUTRIENT UPTAKE, GROWTH, YIELD AND POST HARVEST PERFORMANCE OF TOMATO FRUIT
NADEEM AKHTAR ABBASI*, LUBNA ZAFAR, HAMMAD AZIZ KHAN AND ABDUL AHAD QURESHI
Abstract
Tomato plants were foliar sprayed with naphthalene acetic acid (0.02%) and calcium chloride (0.5%, 1%) individually as well as in combination to determine its effect on growth, nutrient uptake, incidence of blossom end rot, fruit yield, and enhancement of shelf life. The results showed increased absorption of calcium in tomato plants and fruits, which were treated with NAA in combination with CaCl2. Higher level of CACl2 (1%) with NAA (0.02%) increased plant growth and yield by improving mineral uptake of tomato plants. The improved calcium absorption also resulted in lowering occurrence of blossom end rot in tomato fruits. In addition, it was also observed that during storage at ambient conditions (20-25 °C) for sixteen days, tomato fruits maintained best quality for longer period of time when treated with calcium chloride (1%) along with naphthalene acetic acid (0.02%) as compared to other treatments. Although, fruit quality was lowered with passage of storage time but tomato fruits from treated plants maintained their quality for longer duration as compared to control.
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