extremely significantp < 0.01
Growth Relationship between Above-Ground and Underground Biomass of Glycyrrhiza uralensis under Water Stress Under different water stress treatments, there was an extremely significant correlation between the below-ground biomass (BGB) and the above-ground biomass (AGB) of Glycyrrhiza uralensis ( p < 0.01), and the allometric growth relationship was biased toward under-ground biomass accumulation ( Figure 2 ).