Effect of growing media and gibberellic acid on seedling growth of acid lime (Citrus aurantifolia Swingle.) cv. Kagzi lime

An investigation entitled “Effect of growing media and gibberellic acid on seedling growth 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 four 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 maximum height of seedling (38.71 cm), shoot length (14.15 cm), stem diameter (1.01 mm), number of leaves per plant (10.34), leaf area (5.75 cm2), root length (25.71 cm), chlorophyll content (61.68), fresh weight of seedling (1.73 g) and dry weight of seedling (0.78 g) at 120 DAS respectively. Dipping of acid lime seeds for 24 hrs before sowing in GA3 @ 150 mg/l recorded maximum height of seedling (38.96 cm), shoot length (14.22 cm), stem diameter (0.85 mm), number of leaves per seedling (10.25), leaf area (5.57 cm2), root length (25.68 cm), chlorophyll content (62.20), fresh weight of seedling (1.58 g), dry weight of seedling (0.64 g) at 120 DAS respectively. 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 maximum shoot length (16.43 cm), stem diameter (1.15 mm), number of leaves per seedling (10.26), leaf area (6.60 cm2), root length (30.83 cm) and chlorophyll content (70.12) at 120 DAS respectively.