Effect of spacing and plant growth regulators on seed yield and seed quality parameters in okra [Abelmoschus esculentus (L.) moench]

Abstract

The present investigation entitled “Effect of spacing and plant growth regulators on seed yield and seed quality parameters of okra Abelmoschus esculentus (L.) Moench” was conducted for two consecutive seasons (kharif 2015 and 2016). Seeds of okra variety GJO 3 were treated with aqueous solution of growth regulators viz., GA3, IBA and NAA, each at 50, 100 and 150 ppm concentrations and without growth regulators (water soaking). A treated seeds were grown in field with three plant spacing (S1: 45 cm × 30 cm, S2: 60 cm × 30 cm and S3: 60 cm × 45 cm) during kharif 2015 and 2016 at the farm of Junagadh Agricultural University, Junagadh in Split Plot Design (Factorial) replicated thrice. Seed yield and seed quality parameters (after harvest) studied were significantly influenced by different plant spacing and application of different plant growth regulators as seed treatment prior to sowing, except seed viability test during both the years of experimentation as well as pooled over years due to spacing. Among spacing, wider spacing of 60 cm x 45 cm (S3) and among growth regulators, seeds treated with GA3 150 ppm (T3) recorded significantly the maximum values for seed yield per plant, 100 seed weight; and all the seed quality parameters (after harvest) studied.