Fig. 3From: Effects of different water management options and fertilizer supply on photosynthesis, fluorescence parameters and water use efficiency of Prunella vulgaris seedlingsStomatal limitation values (Ls) (a), net photosynthetic rate (Pn) (b), and leaf instantaneous water use efficiency (WUEi) (c) of P. vulgaris exposed to two soil water (W) conditions and three levels of fertilizer (F), n = 6–8. F0: no fertilization, F1: 0.12 g N + 0.2 g P2O5 + 0.1 g K2O kg−1 soil, F2: 0.24 g N + 0.4 g P2O5 + 0.2 g K2O kg−1 soilBack to article page