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Concentrations of soluble sugars in the basal stem of P. hybrida during rooting under non-treated (solid line) and NPA-treated (dashed line) conditions. a Glucose, b fructose, c sucrose. Each value is represented by the mean of five independent replicates ± SE. Asterisks indicate a significant effect of the NPA treatment at the specified time after excision of cuttings (t test, P ≤ 0.05)
