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Table 4 Leaf traits of three Rhododendron species

From: How do leaf anatomies and photosynthesis of three Rhododendron species relate to their natural environments?

Parameters R. yunnanense R. irroratum R. delavayi
LMA (g m−2) 59.38 ± 1.90b 94.32 ± 2.97a 87.08 ± 3.33a
Na (g m−2) 0.98 ± 0.05a 1.20 ± 0.12a 1.01 ± 0.09a
Nm (mg g−1) 16.50 ± 1.18a 12.69 ± 1.21ab 11.67 ± 1.15b
PR (g g−1) 0.378 ± 0.008a 0.344 ± 0.023a 0.414 ± 0.029a
PB (g g−1) 0.088 ± 0.001a 0.087 ± 0.010a 0.095 ± 0.006a
PNUE (μmol g−1 s−1) 9.26 ± 0.59a 9.44 ± 0.85a 11.92 ± 0.97a
Chl a + b (μg m−2) 62.91 ± 2.85a 66.05 ± 4.18a 57.58 ± 4.87a
Chl a/ b 2.43 ± 0.06ab 2.25 ± 0.52b 2.53 ± 0.08a
  1. LMA, leaf mass per unit area; Na, leaf nitrogen content per unit area; Nm, leaf nitrogen content per unit mass; PR, the partitioning coefficients of leaf nitrogen in RuBPCO; PB, the partitioning coefficients of leaf nitrogen in bioenergetics; PNUE, photosynthetic nitrogen use efficiency; Chl a+b, chlorophyll content of a and b; Chl a/ b, the ratio of chlorophyll a and b. Different letters in the same row indicate statistical difference (p < 0.05).