Vol. 11, Special Issue 9 (2022)

Author(s):
Ooha M, Dr. Milkuri Chiranjeeva Reddy, Mhaiskar Priya Rajendra, Reeja Sundaram, Dr. Sreedhar Bodiga, Indu Kale, Bhargavi CH and Rajashekar P

Abstract:
Seed germination and seedling growth of Strychnos nux-vomica were studied. The experiment was conducted in the nursery unit of Department of Silviculture and Agroforestry FCRI, Mulugu, Telangana during 2021-2022. The experiment was laid out in completely randomized design (CRD) with nine treatments and three replications. The experiment consisted of nine different pre sowing treatments for Strychnos nux-vomica seeds viz; water treatment for 6 hours (T₁), hot water treatment for 6 hours (T₂), IBA of 100 ppm for 24 hours (T₃), IBA of 200 ppm for 24 hours (T₄), GA₃ of 500 ppm for 24 hours (T₅), GA₃ of 1000 ppm for 24 hours (T₆), 25% Conc. H₂SO₄ for 2 minutes (T₇), 25% Conc. H₂SO₄ for 5 minutes (T₈) and Control (T₉). Ninety seeds of Strychnos nux-vomica were used for each treatment in three replications and these seeds were sown after treating them with above mentioned treatments on seed bed of 10 m x 1 m with potting media of soil, sand, and FYM in 2:1:1. Amongst all the treatments, seeds of Strychnos nux-vomica treated with GA₃ of 1000 ppm for 24 hours was found to be superior over the control and all other treatments in respect of seed germination percentage (67.7%), Germination period (78 days), Germination energy (52.2%), Survival percentage (93.4%) and Shoot length (25.6 cm), Root Length (18 cm), Collar diameter (1.2 cm), Number of leaves (15.67), Dry weight of shoot (1.7 g), Dry weight of root (0.87 g) of seedlings. It was concluded that GA₃ of 1000 ppm for 24 hours promotes good germination and growth of Strychnos nux-vomica under Telangana conditions.