Effect of different plant growth regulators and nutrient on seed germination and growth of tamarind (Tamarindus indica L.)

Abstract

An investigation to study the “Effect of different plant growth regulators and nutrient on seed germination and growth of Tamarind (Tamarindus indica L.)” was carried out during the year 2024-25 in the shade net house of Pt. KLS College of Horticulture and Research Station, Rajnandgaon, Chhattisgarh. The experiment was conducted in Completely Randomized Design (CRD) with 10 treatments i.e., T0 (Control soaked into distil water), T1 (NAA @ 100 ppm) seed soaking for 12 hr., T2 (NAA @ 200 ppm) seed soaking for 12 hr., T3 (GA3 @ 100 ppm) seed soaking for 24 hr., T4 (GA3 @ 200 ppm) seed soaking for 24 hr., T5 (KNO3 @ 0.5%) seed soaking for 3 hr., T6 (KNO3 @ 1%) seed soaking for 3 hr., T7 (Thiourea @ 0.5%) seed soaking for 1 hr., T8 (Thiourea @ 1%) seed soaking for 1 hr., T9 (mechanical scarification) removal of hard seed coat. The various observations of different aspects recorded for the seed germination and growth of tamarind were as follows: Days taken to seed germination (5.21 days), days taken to 50% seed germination (16.51 days), germination percentage (93.03%), seedling height of plant (31.98 cm), number of leaves per seedling (18.45), stem girth (2.90 mm), fresh weight of shoot (13.00 g) and dry weight of shoot (5.47 g) among all the other treatments.