Vol. 12, Issue 3 (2023)

Author(s):
Sangamesh R Sabarad, Manu Kumar HR, Anil I Sabarad, Chandan K, Prashantha A, Shivakumar KM and Suhasini Jalawadi

Abstract:
An experiment was conducted during 2020-21 to study the different concentration of chemicals, growth regulators and soaking time on the germination of wood apple seeds at Kittur Rani Channamma College of Horticulture, Arabhavi, Karnataka. The experiment was laid out infactorial completely randomized design comprising of three soaking time (6 hours, 12 hours and 24 hours) and eight different seed treatment chemicals (GA₃ @ 50 ppm and 100 ppm, KNO₃ @ 50 ppm and 100 ppm, Thiourea @ 50 ppm and 100 ppm, Soaking in water and Control i.e., without any treatment). The result of the present investigation revealed that amongst the different seed treatments, soaking the seeds in GA₃ @ 100 ppm for 24 hours was most effectiveto ensure maximum germination percentage (78.42, 75.04%), number of leaves per seedling (30.98, 24.78), height of the seedlings (14.23, 13.09 cm), fresh weight of the seedlings (13.61, 10.76 g), dry weight of the seedlings (5.26, 4.16 g), seedling vigour index-I (1123.63, 997.24), seedling vigour index-II (416.70, 323.63) and shoot to root ratio (1.41, 1.35).