Effects of phosphorus deficiency on the absorption of mineral nutrients, photosynthetic system performance and antioxidant metabolism in Citrus grandis
Fig 5
Effects of P deficiency on CO2 assimilation (A), stomatal conductance (B), and contents of intercellular CO2 (C), Chl a (D), Chl b (E) and Chl a+b (F).
Bars represent means ± SD (n = 5 for A-C and 3 for D-F). Differences among the treatments were analyzed by Student’s t-test. Different letters above the bars indicate a significant difference at P < 0.05.