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Fig. 4 | BMC Plant Biology

Fig. 4

From: Carbon monoxide is involved in melatonin-enhanced drought resistance in tomato seedlings by enhancing chlorophyll synthesis pathway

Fig. 4

Effects of MT, CO, MT + CO, and MT + Hb on root length (a) and plant height (b) of tomato seedlings under drought stress. Photographs (c) showed the tomato seedlings treated by 7 days. The data are the average of three replicates and are presented as means ± SE. Different letters indicate significant differences at P < 0.05 according to Duncan’s multiple range tests

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