Effect of Tytanit on selected morphological, physiological and chemical characteristics of Lolium multiflorum dry matter

[摘要] The aim of the study was the determination the effect of foliar application of growth regulator containing Ti(Tytanit®), on Lolium multiflorum morphometry, photosynthetic activity, chlorophyll content and chemicalcomposition of dry matter. A pot experiment was carried out in a plant breeding room of Siedlce University, Poland,in 2019. The experimental units were as follows: I) control – plants sprayed with distilled water; II) plants sprayed with0.02% Tytanit concentration; III) plants sprayed with 0.04% Tytanit concentration; IV) plants sprayed with 0.06%Tytanit concentration. The following parameters were determined: the shoots number, the number and the length ofleaf blades, the length of roots, the dry weight of roots, the dry weight of plants per pot and the content of chlorophylla and b in leaf blades. In addition, maximum and actual efficiency of the leaf photosystem, photochemical and nonphotochemical quenching coefficients and the content of total protein, crude fibre, monosaccharides, crude fat, crudeash, Ca, Mg, P, K and the ratio of K/(Ca + Mg), and Ca/P in the dry matter of plants were determined. Used incontrolled conditions, the regulator contributed to the growth of most morphological characteristics, improvedphotosynthetic activity, increased the concentration of chlorophyll a and b, and the content of total protein,monosaccharides, calcium and magnesium, at the same time expanding ionic ratios.

[学科分类] 农业科学（综合）

[关键词] chlorophyll pigments;macronutrients;morphometry;organic compounds;photosynthetic activity;ryegrass;titanium