Can lamina fresh mass be used to represent lamina dry mass? Evidence from Photinia serratifolia

Lamina dry mass (LDM) per unit area is an important plant functional trait. However, it time-consuming to leaves in practice. Previous studies have demonstrated that lamina fresh (LFM) approximately proportional LDM for some broad-leaved plants. those largely overlooked the influence of leaf age on relationship, and were sampled without distinguishing age. In present study, we used eight leaf-age groups Photinia serratifolia test whether LFM. And also compared two linear equations ( y = a + bx , x where ln LFM, LDM, b are constants be estimated) introduction parameter worthwhile based percent error goodness-of-fit between equations. There four whose 95% confidence intervals (CIs) included unity, other difference lower limit CI unity was smaller than 0.03, supporting validity vs. LFM relationship. Additionally, errors all 5%, which further supports hypothesis relationship at individual group level. LDM/LFM ratio exhibited non-linear (quadratic) function time, indicates intercept, depends upon