Impact of SiO2, Al2O3, and ZnO nanomaterials on the physiological parameters of winter rape

Abstract

Objectives. Assessing the impact of nanosize materials of diverse concentrations upon the physiological indices of winter rape's Demerka variety. Methods: laboratory (method of induction of chlorophyll fluorescence, methods of identifying the seeds' sowing properties, and biometric indices of winter rape's plants), statistics. Results. This article discusses the analysis results targeting the impact of nanosize materials upon the physiological indices of winter rape's Demerka variety. The research proves that preliminary soaking the seeds in nanomaterials' solutions increases the energy germination and seed germination of winter rape's Demerka variety. The highest indices of the said variety's energy of germination and seed germination were provided by the influence of the SiO2 (95,3 and 98,3%) and ZnO (91,8 and 97,3%) nano-materials 300 mg/l concentration. The length of the winter rape's seedlings increased due to the prior processing of the seeds with the SiO2 and ZnO nanomaterials. The highest indices of the seedlings' stem' growth were provided by using the SiO2 nanomaterial in 300 mg/l concentration, as the stem parts of the said seedlings appeared to be 81% longer than those in the control group. The highest index of the seedlings' root segment (30,5 % extra growth compared to the control group) was provided by the impact of the ZnO nanomaterial in 150 mg/l concentration. Sowing and biometric indices of winter rape plants were virtually unaffected by the Al2O3 nanomaterial. The nanomaterials under analysis do not impede chlorophyll fluorescence induction in the plants of winter rape of the Demerka variety. Conclusions. The use of the SiO2 and ZnO nanomaterials in 300 mg/l concentration for the pre-sowing processing of the seeds of winter rape's Demerka variety causes the activation of growth parameters and improves induction of chlorophyll fluorescence. 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