Influence of high hydrostatic pressure treatment on licorice (Glycyrrhiza uralensis Fisch.) hard seeds germination

Abstract

The effects of hydrostatic pressure (from 100 to 250 MPa with different exposure options) on the germination of hard seeds of licorice (Glycyrrhiza uralensis Fisch.) were studied. Among used pressures, the best result was obtained after three times by 100 MPa exposure. In this variant, good dynamics of swelling and germination of seeds was observed, and the proportion of normal seedlings from the total number of hard seeds in the studied sample was largest. It is shown that higher levels of pressure load on licorice seeds led to a decrease in the proportion of normally developed seedlings.