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Comparison of (A) days to flower and (B) height extension growth at flowering of 10 essential oil cultivars with the same name but different sources in Expt. 1. All data were pooled from 10 replications except “ACDC-AC” (n = 9). NS indicates insignificant treatment effects. NA indicates less than four valid data under such treatment. Means sharing a letter are not statistically different by Tukey's honest significance difference test at P ≤ 0.05. Error bars indicate standard error.
