Effects of Leaf Surface Energy on Pesticidal Performance

Year 2019, Volume: 25 Issue: 2, 174 - 180, 05.06.2019

Muhammed Cemal Toraman

https://doi.org/10.15832/ankutbd.382143

Cited By: 1

Abstract

Surface energy is widely used in the industry to predict behavior of spray droplets on solid surfaces. The targets of pesticide applications which are used extensively in agricultural production are mainly plant leaf surfaces. Digitization of leaf surfaces to estimate the spread and adhesion of a pesticide application is an important approach in providing descriptive information. In this regards, from intensive agricultural products Triticum aestivum L., Citrus sinensis, Fragaria ananassa, Vitis vinifera L., Cucumis sativus, Capsicum annuum L. culture plants, Elymus repens and Sinapis arvensis from weeds were used to determine surface energy. The leaf surface energies were determined by evaluating the contact angles of the drips while obtained from surface tension and its components from known liquids pure water, diiodomethane and formamide liquids on the surface of the leaves according to five different methods. Wu and Equation of State methods have been found to give more accurate results than other methods. Elymus repens and Triticum aestivum L. plants among the statistically three significant grouped leaves were reduce the spreading and sticking of droplets applied on the leaves by providing a more spherical droplet formation. The Fragaria ananassa leaves have encouraged the higher surface energy that they have the spread of the drips on the leaf surface.

Keywords

Contact angle, Diiodomethane, Leaf, Spray, Surface tension, Wu

References

• Brewer C A & Smith W K (1997). Pattern of leaf surface wetness for montane and subalpine plants. Plant Cell Environ 20: 1–11
• Brewer C A, Smith W K & Vogelmann T C (1991). Functional interaction between leaf trichomes, leaf wettability and the optical properties of water droplets. Plant Cell Environ 14: 9552962.
• Li D & Neumann A W (1992). Equation of State for Interfacial Tensions of Solid-Liquid systems. In: Advances in Colloid and Interface Science 39: 299-345
• Fernández V, Paula G D, Peirce C A E & Mcbeath T M (2014). Effect of wheat phosphorus status on leaf surface properties and permeability to foliar-applied phosphorus. Plant and Soil. İn press. DOI:10,1007/s11104-014-2052-6
• Fowkes F M (1964). Attractive Forces at Interfaces. Industrial and Engineering Chemistry 56 (12): 40-52 Holloway P J (1970). Surface factors affecting the wetting of leaves. Pest Management Science 1: 156–163
• Khayet M & Ferna´ndez V (2012). Estimation of the solubility parameter of model plant surfaces and agrochemicals: a valuable tool for understanding plant surface interactions. Theor Biol Med Model 9: 45. DOI:10.1186/1742-4682-9-45
• Kaelble D H (1970). Dispersion-Polar Surface Tension Properties of Organic Solids. The Journal of Adhesion. 2: 66-81
• Krüss Company 2017. https://www.kruss-scientific.com/services/education-theory/glossary/equation-of-state/. (Erişim Tarihi 04.06.2017)
• Owens D K & Wendt R C (1969). Estimation of the Surface Free Energy of Polymers. In: Journal of Applied Polymer Science 13(8): 1741-1747
• Moy E & Neumann A W (1987). Solid/Liquid Interfacial Tensions from contact Angle Data and Direct Force Measurements. Journal of Colloid and Interface Science. 119 (1): 296-297
• Rabel W (1971). Einige Aspekte der Benetzungstheorie und ihre Anwendung auf die Untersuchung und Veränderung der Oberflächeneigenschaften von Polymeren. Farbe und Lack 77(10): 997-1005.
• Hansen F K (2004). The Measurement of Surface Energy of Polymers by Means of Contact Angles of Liquids on Solid Surfaces. University of Oslo
• Puente D W M, Baur P (2011) Wettability of soybean (Glycine max L.) leaves by foliar sprays with respect to developmental changes. Pest Management Science 67: 798–806 Massinon M & Lebeau F (2012) Experimental method for the assessment of agricultural spray retention based on high-speed imaging of drop impact on a synthetic superhydrophobic surface. Biosystems Engineering 112 (1): 56–64.
• Wang H, Shi H, Li Y & Wang Y (2014). The effects of leaf roughness, surface free energy and work of adhesion on leaf water drop adhesion, Plos One. 9: 1-10
• Wu S (1973). Polar and Nonpolar Interaction in Adhesion. The Journal of Adhesion 5 (1): 39-55.
• Wagner P, Fürstner R, Barthlott W & Neinhuis C (2003). Quantitative assessment to the structural basis of water repellency in natural and technical surfaces. Journal of Experimental Botany. 54: 1295–1303
• Wohlfahrt G, Bianchi K & Cernusca A (2006). Leaf and stem maximum water storage capacity of herbaceous plants in a mountain meadow. Journal of Hydrology. 319 (1-4): 383-390
• Zisman W A (1964). Relation of the equilibrium contact angle to liquid and solid constitution. Advances in Chemistry 43: 1-51.