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FEATURES OF ERUCA SATIVA MILL. GROWTH AND DEVELOPMENT UNDER THERMIC POLYETHYLENE FILMS WITH LO W-EMISSION COATINGS BASED ON COMPOUNDS OF COPPER AND SILVER // Tomsk State Pedagogical University Bulletin. 2015. Issue 2 (155). P. 122-127

The use of photoselective polyethylene films with thermic properties used as greenhouse cover materials at cultivation of Eruca sativa Mill., Korsika resulted in change of vegetative growth and plants development. The thermic films have IR-reflecting properties (700–1400 nm) due to low-emission coatings with copper compounds (film TF1) and compounds of silver and copper (film TF2) on the surface of polyethylene films. The use of thermic films was conducive to decrease in wide fluctuations in day and night temperatures in greenhouses, because of increase in night temperatures up to 2 °C compared to unmodified polyethylene film. The change of light and temperature growth conditions of E. sativa by thermic film (TF-2) resulted in increase the yield (leaf number, fresh weight, and dry weight). Increase in productivity up to 60 % was followed by the rise in ascorbic acid level in plant leaves. Thermic film TF-1 did not contribute to change of plant growth, development and productivity of Eruca sativa compared to unmodified polyethylene film.

Keywords: Eruca sativa, unmodified polyethylene film, polyethylene thermic film, productivity, ascorbic acid, rucola