Effect of different pH levels, micronutrients and banana pseudostem sap on flowering of mango (Mangifera indica L.) cv. Kesar

Abstract

The present experiment was conducted during 2015-16 and 2016-17 at RHRS, ACHF, NAU, Navsari, (Gujarat). The experiment was laid out in Randomized Block Design with Factorial Concept comprising two factors viz., different pH levels of foliar spray solution (4.5, 5.5 pH and best available water) and banana pseudostem sap (5 %), novel organic liquid fertilizer (1 and 2 %), mixture Grade IV (1 %), boric acid (0.2 %). The treatments were replicated thrice. The individual effects of foliar applications at induction of flowering and full bloom stage and their interactions on flowering characters of mango cv. Kesar were recorded. The results revealed that the foliar spray solution at pH 4.5 level and foliar application of 2 % novel organic liquid fertilizer gave maximum flowering characters of mango i.e. number of fruits at pea stage, fruit set (%) at marble stage, fruit set (%) at harvest stage, fruit retention and number of fruits per panicle. Interaction of different pH levels with banana pseudostem sap and micronutrients was found significant in case of fruit set (%) at marble stage, fruit set (%) at harvest stage, fruit retention and number of fruits per panicle of mango during investigation, which were the maximum when mango cv. Kesar tree treated at induction of flowering and full bloom stage with 2 % novel organic liquid fertilizer at 4. 5 pH level.