Effect of growing media and gibberellic acid on seed vigour and survival of acid lime (Citrus aurantifolia Swingle.) cv. Kagzi lime

Abstract

An investigation entitled “Effect of growing media and gibberellic acid on seed vigour and survival of acid lime (Citrus aurantifolia Swingle) cv. Kagzi lime” was conducted during the year Kharif- 2019 at Horticultural Research Farm, Department of Horticulture, B. A. College of Agriculture, Anand Agricultural University, Anand. Treatments were comprised five levels of growing media (M)viz.,M1- Soil + FYM (1:1), M2-Soil + Vermicompost (1:1), M3- Soil + FYM + Vermiculite (1:1:1), M4- Soil + Vermicompost + Vermiculite (1:1:1) and M5-Soil + FYM + Vermicompost + Vermiculite (1:1:1:1) with three levels dipping of seeds of acid lime in gibberellic acid for 24 hrs before sowing in polythene bags viz.,G1- GA3@ 50 mg/l,G2- GA3@ 100 mg/l and G3- GA3@ 150 mg/l with G0- Control (Water). The experiment were laid out in a Completely Randomized Design (Factorial) with twenty treatment combinations and repeated thrice. Growing media of soil + FYM + vermicompost + vermiculite (1:1:1:1) recorded minimum number of days taken for initiation of germination (22.41), maximum germination percentage (82.08%), vigour index- I (3198.8), vigour index- II (64.81) and survival percentage (76.01%) at 120 DAS. Dipping of acid lime seeds for 24 hrs before sowing in GA3@150 mg/l recorded minimum number of days taken for initiation of germination (24.26), maximum germination percentage (79.68), vigour index- I (3130.3), vigour index- II (52.36) and survival percentage (75.56%) at 120 DAS. Treatment combination of Growing media and GA3 of soil + FYM + vermicompost + vermiculite (1:1:1:1) + Dipping of acid lime seeds before sowing in GA3@150 mg/l apparently recorded minimum number of days taken for initiation of germination (20.66)