EFFECT OF HALOPRIMING AND HYDROPRIMING ON THE GERMINATION AND SEEDLING TRAIT OF SOYBEAN (GLYCINE MAX)

Abstract

Low germination rates and environmental stress frequently effect the crucial stages of soybean (Glycine max) germination and early seedling development which have a substantial impact on crop output. The effectiveness of various priming techniques like hydropriming and halopriming on ten soybean genotypes was assessed. Germination characteristics including germination percentage (GP), germination index (GI), germination energy (GE) and germination rate index (GRI) were examined using a completely randomized design. The results showed that KNO₃ 50 mM was the most efficient priming concentration increasing germination by up to 63.33% in high performing genotypes such as UAM-SB-162 and 1-S. Treatment effects on GP, GI, and GE were significant while higher salt concentrations (100–150 mM). On the other hands, significantly reduced germination in all types. AUST-94-2 and 2-S were among the genotypes that responded substantially to halopriming while PKN-38-2-1 and other genotypes fared better with hydropriming or untreated controls. The study shows how significant it is to modify hydropriming and halopriming techniques based on genetic backgrounds in order to maximize stand establishment especially in settings that are prone to stress. To create useful priming standards for future should investigate the physiological processes behind genotypic variations and confirm these findings in field environment.