This paper aim is to present data from a field and laboratory experiment realized in 2018. The field is located in Didactic Station of Banat University of Agricultural Sciences and Veterinary Medicine „King Michael I of Romania” from Timișoara, Romania, where the soil is a slightly gleized cambic chernozem. The investigated species was Triticum aestivum ssp. vulgare, Ciprian cv. Wheat was fertilized during spring with a liquid complex which contain zinc. This microelement has diverse biological roles in plants, being involved in enzymatically driven metabolism and pollen tube development. Many enzymes have this micronutrient as cofactor. Nowadays, zinc deficiency in soils and plants represent a global problem. Zinc deficiency can also be observed in humans, particularly in developing countries. Thus, increasing zinc content in plants, especially in widely consumed worldwide cereals became of interest. In this research zinc was sprayed to leaves of wheat plants in five experimental doses. Intact, healthy leaves were analyzed in the laboratory and the values of some physiological parameters were determined. The studied indices were leaf dry weight, determined after drying in an oven, followed by a weighting, along with leaf ash content, as the mass of the ash obtained after an incinerating process and leaf organic matter, determined by subtracting the values of the second parameter from the first. Statistical processing was realized using PAST software v3. Regarding leaf dry weight, a polynomial trend explains the interdependency with zinc dose. The lowest values were obtained for the fertilizer with the minimum zinc content and the highest values were noticed for the maximum zinc dose. Same tendencies were observed for leaf ash content and leaf organic matter. Variance between the five variants was analyzed by one-way ANOVA between groups. Levene’s test revealed that all data are homogenous. The Tukey's pairwise comparisons indicated significant differences between variants. leaf organic matter, zinc, fertilization, foliar fertilizer, physiological response

leaf organic matter, zinc, fertilization, foliar fertilizer, physiological response

sciences soil

Presentation: poster