Effects of hydropriming treatments on germination and vigor of coriander seeds

Abstract

Slow and uneven germination usually occur in coriander seeds. Hydropriming is one of the enhancingseed germination techniques which is simple, safe, non-chemical used and harmless to the environment. The wateruptake pattern of coriander seeds was conducted. Results revealed that the coriander seeds absorbed water rapidlyduring the first hour of imbibition period. Then, seed weights gradually increased and became stable at 7 and 8 hoursof imbibition period in ‘Lotus’ and ‘Saisamon’, respectively. Seeds of both cultivars were subjected to hydroprimingtreatments by 1) soaking in distilled water with aeration for 8 hours, 2) soaking in distilled water for 8 hours,3) soaking in distilled water with aeration for 8 hours and incubated at 20°C for 24 hours, 4) soaking in distilledwater for 8 hours and incubated at 20°C for 24 hours, 5) soaking in distilled water for 24 hours and comparing to6) the control. Results indicated that hydropriming treatments improved germination and vigor of coriander seeds,and the appropriate method for germination enhancement of coriander seeds was soaking in distilled water for 8 hoursand incubated at 20°C for 24 hours.