Abstract:

To study the influence of the seed germination of Polygonum multiflorum by different temperatures, cultivating methods and salt stresses, which can provide reference for seed germination inspection and field seeding. The author took petri dishes to culture seeds and counted the germination rate. The results showed that the highest germination rate occured at 25℃; in salt-stress condition, with the increase of the salt concentration seed germination rate declined and under the condition of low salt concentration germination rate showed no obvious difference with the controlling group; at the same temperature, germination rate was higher when cultivated with dark than under light, and seeds cultured in the filters had higher germination rate than those which cultured on the filter. Germination experiment should carry out at 25℃, with light and between paper. Seeds germinate potential should calculate after the germination experiment progressing 9 days. When planting, salt concentration of the planting seedling field could not above 3 g/L, otherwise the germination would be affected.