Fig. 4
From: Exposure to lower red to far-red light ratios improve tomato tolerance to salt stress
Effects of different R: FR values on on chlorophyll content, photosynthesis rate, actual photochemical efficiency of PSII, and the content of H2O2, proline and MDA in tomato phyB1 mutants under salinity stress. a chlorophyll a, chlorophyll b and carotenoid content. b net photosynthesis rate. c actual photochemical efficiency of PSII. d H2O2 content. e proline content. f MDA content. All these parameters were measured 8 days after salinity treatment. T1, 0 mM NaCl + 7.4 R: FR; T2, 0 mM NaCl + 1.2 R: FR; T3, 0 mM NaCl + 0.8 R: FR; T4, 100 mM NaCl + 7.4 R: FR; T5, 100 mM NaCl + 1.2 R: FR; T6, 100 mM NaCl + 0.8 R: FR. Vertical bars on the lines represent the SE (n = 5), Bars with different letters are significantly different at the 0.05 level (Duncan’s multiple range test)