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The micro organic acids components contents. The effect of salt stress (S) and alkali stress (A) on the succinic acid, acetic acid, and oxalic acid contents in rhizomes, stems, roots, and leaves of L. chinensis. There are three levels under both stresses: 0, 100, and 200 mmol/L. The means and standard errors are reported. Within each column, the different letters indicate significant difference among treatments (P < 0.05).
