Quality parameters of coloured capsicum (Capsicum annuum var. grossum) as influenced by different nitrogen and potassium fertigation levels under shade net

Abstract

A field experiment was carried out during rabi season of 2018-19 at Water Technology Centre, College of Agriculture, Rajendranagar, Hyderabad on different coloured capsicum hybrids (Indra, Bomby and Orobelle) with respect to nitrogen and potassium fertigation levels. The experiment was laid out in split plot design with four fertigation levels (F50 - 50% recommended dose of N and K, F75 - 75% recommended dose of N and K, F100 - 100% recommended dose of N and K and F125 - 125% recommended dose of N and K) and three coloured capsicum hybrids (V1- Green hybrid (Indra), V2 - Yellow hybrid (Orobelle) and V3 – Red hybrid (Bomby) (100% RDF - 100 : 80 : 60 kg N, P2O5 and K2O ha-1). The mean fruit T.S.S value varied from 4.77 to 5.39, 4.07 to 6.05 and 3.77 to 6.53o brix among the fertigation levels, hybrids and the interactions respectively. The mean fruit capsaicin (%) varied from 0.467 to 0.735%, 0.511 to 0.665% and 0.427 to 0.797% among the fertigation levels, capsicum hybrids and their interactions respectively. The mean fruit capsanthin values ranged from 13919 to 19283, 7979 to 31137 and 5653 to 32615 among the fertigation levels, capsicum hybrids and their interactions respectively.