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. 2019 Dec 11;24(24):4539. doi: 10.3390/molecules24244539

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Effects of pairs of volatile compounds found in Ulex europaeus and Cytisus scoparius aerial biomass, assayed at fixed ratios, on the germination and early growth of Amaranthus retroflexus, expressed as percentages relative to the control (%). Values denote mean ± SD. The x-axis indicates the increasing participation of the first compound in the mixture (in percentage), i.e., 0, 3.1, 6.25, 9.4, and 12.5 ppm in the assayed volume. Dashed lines represent the expected effect of the two compounds acting independently [29]. Asterisks denote significant differences between observed and predicted values at * p ≤ 0.05; ** p ≤ 0.01; *** p ≤ 0.001; otherwise, not significant (p > 0.05).

Effects of pairs of volatile compounds found in Ulex europaeus and Cytisus scoparius aerial biomass, assayed at fixed ratios, on the germination and early growth of Amaranthus retroflexus, expressed as percentages relative to the control (%). Values denote mean ± SD. The x-axis indicates the increasing participation of the first compound in the mixture (in percentage), i.e., 0, 3.1, 6.25, 9.4, and 12.5 ppm in the assayed volume. Dashed lines represent the expected effect of the two compounds acting independently [29]. Asterisks denote significant differences between observed and predicted values at * p ≤ 0.05; ** p ≤ 0.01; *** p ≤ 0.001; otherwise, not significant (p > 0.05).