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. 2019 Dec 27;10(1):43. doi: 10.3390/biom10010043

Figure 4.

Figure 4

Effect of drought, heat and drought + heat stress on the terpenoids (A), tannins (B), alkaloids (C) and DPPH scavenging activities (D) in M. piperita and C. roseus after seven and fourteen days of stress exposure. Mean (±SE) of five values is presented and values denoted by different letters are significantly different at p < 0.05.