Fig. 6 in Comprehensive characterization of polyacetylenes and diterpenes from the underground parts of Solidago altissima L. and their contribution to the overall allelopathic activity

Fig. 6. Effects of the n-hexane extract (A), cis-dehydromatricaria ester (cis-DME, 1) (B), 13E-7α-acetoxy kolavenic acid (7) (C), (2Z, 8Z)-10-tigloyloxy matricaria ester (8) (D), (2Z, 8Z)-10-angeloyloxy matricaria ester (9) (E), and 13E-kolavenic acid (10) (F) on the root and shoot lengths of Italian ryegrass seedlings. The bioassays of isolated compounds B–F were performed at their concentrations in the n-hexane extracts shown in (A). The values are expressed as means ± standard deviation. Different letters represent significant differences between treatments (p <0.05, one-way ANOVA via Tukey's multiple comparison test).