Fig. 2

Effect of the p-menthane monoterpenes on the germination of the R. sativus seeds^I. ^ISome of test results were cited in the literature data [13]. Each determination was made with three replicates of twenty seeds. Bars represent standard deviations. ^IIGermination percent (%) = number of germination seeds of each sample after 2 days of the test/number of germination seeds after 3 days of the tests of control × 100. ^IIIMeans in the same column with the same letters are not significantly different. Tukey–Kramer, p ≤ 0.05