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Chemical and Biological Technologies in Agriculture
Fig. 3 | Chemical and Biological Technologies in Agriculture

Fig. 3

From: Interaction of surfactants with Prunus laurocerasus leaf surfaces: time-dependent recovery of wetting contact angles depends on physico-chemical properties of surfactants

Fig. 3

Wetting Contact angles of deionized water on Prunus leaf surfaces. Wetting contact angles were measured directly after the sprayed alcohol ethoxylates had completely dried (black bars) and after dried alcohol ethoxylate deposits had again been washed off from the leaf surface (grey bars). Alcohol ethoxylates were sprayed leading to a leaf surface coverage of 1 µg cm−2. After washing off the alcohol ethoxylates from the leaf surfaces, wetting contact angles fully recovered and were not different from control leaves treated with deionized water instead of alcohol ethoxylates (dotted black line). Differential letters indicate significant differences between the different alcohol ethoxylates and the different treatements at p < 0.05. Bars represent means with standard deviation (n = 15)

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