Influence of plant growth regulators and fertigation on yield and economic feasibility of pomegranate (Punica granatum L.) cv. Sinduri under high density planting system

Abstract

An experiment was conducted in the pomegranate orchard established under high density planting system, during July 2018 to December 2018 and again during July 2019 to December 2019. The experiment was laid out in Factorial Randomized Block Design and experiment comprised of 27 treatment combinations consisting of plant growth regulators levels (NAA 0, 50 and 100 ppm and ethrel 0, 150 and 250 ppm) and fertigation levels (0, 75 and 100% recommended dose of fertilizers). Results revealed that maximum mean yield per plant (6.80 kg) and yield per hectare (75.52 quintal) was recorded under F2 (fertigation 100% recommended dose of fertilizers). However, interaction effect of NAA, ethrel and fertigation were found to be relatively higher to their individual effect. In interaction effect maximum mean yield per plant (8.09 kg) and yield per hectare (89.85 quintal) was recorded under N2E1F2 (100 ppm NAA + 150 ppm ethrel + 100% RDF through fertigation). In the same way, maximum gross return of Rs. 2,32,400/ha and Rs. 3,07,360/ha which was Rs. 1,06,250/ha and Rs. 1,41,740/ha excess over control during 2018 and 2019, respectively was recorded under N2E1F2 (100 ppm NAA + 150 ppm ethrel + 100% RDF through fertigation).