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Purple and green stem Brassica napus plants growth and morphology under drought (10% PEG-6000), (A) shoot fresh weight, (B) shoot dry weight, (C) root fresh weight, (D) root dry weight, (E) relative water content (RWC), and (F) total soluble sugars, respectively. Different symbols represent significance level as *p = 0.05, **p = 0.01, ***p = 0.001, ****p = 0.0001. ns, non-significance.
