Author's Name:	LaishramLilabati & U.K.Sahoo
Subject Area:	Life Sciences
Subject	Agricultural
Section	Research Paper

Germination, scarification, dormancy, pretreatments, Emblica officinalis

Emblica officinalis Gaertn. is an important medicinal plant, which is well known in bringing better socio-economic conditions worldwide, so also in north-east India. Improvement of germination rate and percentage may enable commercial propagation of this plant from seed instead of cuttings. However, the seeds of E. officinalis do not germinate easily thereby necessitating pre-treatments to overcome dormancy.This study investigates the effect of different pretreatments viz., tap water for 24 hours, thiourea (2%) for24 hours, GA3 500ppm for 12 hours, GA3 500ppm for 24 hours, Stratification at 5ºC for 10days, Acid (conc. HCl) scarification for 30 seconds and Control on the germination of Emblica seeds. Chemical treatment of Emblicaofficinalis seed exposed to GA3500ppm for 24hous resulted better germination than other treatments. Imbibition percent increased in treated seeds upto 90 % in contrast to 70% in non-treated seeds (control). The study shows treatment of seeds with GA3 500ppm and thiourea were effective in breaking seed coat dormancy in the present study.