Table 4 General Linear Model (GLM) analyses on regressive relationships of relative plasticity (REL RDPIs) and the degree of plasticity (absolute plasticity, ABS RDPIs) with the number of significant correlations (NC) among traits and coefficient of variations of traits (CV) in response to density under infertile and fertile soil conditions at 50 d and 70 d of plant growth. Abbreviations for all variables are in Table 1. P < 0.10, **P < 0.05, ***P < 0.01.