highly significantP < 0.05
Duration and Rate of Xylem Growth For all sites, correlations between the observed and predicted tree-ring width indices were positive and highly significant (SIM and MIS: P < 0.05, N = 15; BER, DAN: P < 0.01, N = 15; MIR: P < 0.01, N = 5) and R -values ranged from 0.54 to 0.90 ( Supplementary Figure S1 ).