Open AccessInvestigation of the quality of seeds of Anethum graveolens varieties Gribovsky and Lesnogorodsky by method of thermal analysis
Author(s) -
Е. В. Зуева,
С Л Белопухов,
Ravil F. Baybekov
Publication year - 2020
Publication title -
butlerovskie soobŝeniâ
Language(s) - English
Resource type - Journals
ISSN - 2074-0212
DOI - 10.37952/roi-jbc-01/20-64-12-45
Subject(s) - anethum graveolens , chemistry , composition (language) , horticulture , loam , chemical composition , thermal decomposition , decomposition , differential thermal analysis , botany , biology , soil water , physics , organic chemistry , ecology , linguistics , philosophy , diffraction , optics
The paper presents data on the study of the chemical composition of dill (Anethum graveolens L) using foliar treatment of vegetative plants with the growth-regulating agent Nicosulfuron [2-(4,6-dimethoxypyrimidin-2-ylcarbomoyl-sulfamoyl) -N,N-dimethylnicotinamide]. Field experiments were carried out at the agrobiological station of the Humanitarian and Technological University of the city of Orekhovo-Zuevo, Moscow Region in 2016-2018. The soil of the experimental plots is sod-podzolic medium loamy. Plants were treated with a solution of Nicosulfuron with a concentration of 0.1 g/l according to the active substance. It was found that foliar treatment of vegetative plants with a solution of 2-(4,6-dimethoxypyrimidin-2-ylcarbomoyl-sulfamoyl)-N,N-dimethylnico-tinamide led to a change in the concentrations of macrocomponents in the seeds of dill varieties Gribovsky and Lesnogorodsky. Differential thermal analysis of DTA) of dill seeds was carried out using a thermoanalytical complex based on a derivatograph. The sample heating rate in a platinum crucible was 5, 10, and 20 degrees per minute. The DTA method showed a significant difference in the component composition of the organic matter of seeds of both varieties. 6 organic components can be grouped into two groups – with thermal decomposition temperatures of 200-400 °C and 400-600 °C. The treatment with Nicosulfuron leads to a shift in the accumulation of synthesized spare components of seeds towards easily degradable (up to 400 °C) components. This treatment effect is manifested in the fact that in the total mass of organic components of dill seeds (at the level of 87%), the fraction of readily decomposable organic matter is 64-70% for both varieties. In the control variant, without treatment with the drug, the biosynthesis of hardly degradable components, probably having a high molecular weight, and for high-molecular compounds having a high degree of polymerization, occurs. At the same time, the total activation energy for organic compounds in the control is 30-40% higher compared to the samples that were treated with Nicosulfuron.