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. 2024 Nov 25;15:1483217. doi: 10.3389/fpls.2024.1483217

Figure 1.

Figure 1

Effects of different Mg supplies on growth and physiological parameters of tobacco seedlings. (A) Phenotype of tobacco seedlings grown under different Mg supply levels at 15 and 25 DAT (days after treatment), respectively. Scale bars = 10 cm. Mg0, 0 mM Mg; Mg1/4, 0.50 mM Mg; Mg1, 1.99 mM Mg; Mg4, 7.96 mM Mg. (B) Magnesium (Mg) content in leaves of tobacco seedlings grown under different Mg supplies at 25 DAT. (C) Contents of chlorophyll a (Chla), chlorophyll b (Chlb), and carotenoids (Car) in leaves of tobacco seedlings grown under different Mg supplies at 25 DAT. (D) Concentration of soluble proteins (SP) in leaves of tobacco seedlings grown under different Mg supplies at 25 DAT. (E) Content of RuBPCase in leaves of tobacco seedlings grown under different Mg supplies at 25 DAT. (F-H) Activities of acid invertase (AI), neutral invertase (NI), and nitrate reductase (NR) in leaves of tobacco seedlings grown under different Mg supplies at 25 DAT. Different letters (a, b, c, d) above the columns indicate statistical differences (p < 0.05).