biotesting

Biological testing of (thio) semicarbazones 2,4-diarylbicyclo [3.3.1] non2-en-9-ones, differing in the nature of aryl substituents and nucleophile, was carried out.The object of the study was seedlings of spring soft wheat Triticum aestivum L. of the Saratovskaya 36 variety. To assess the physiological activity of the tested compounds, we used a valuable analysis of the morphometric parameters of growth of the root system and shoots of the test and control plants and the quantitative content of chlorophyll a, chlorophyll b, and carotenoids in the first leaf.

The search of new biologically active substances to be used as herbicides and plant growth regulators is carried out. The two compounds were used – 2-benzylidene-6-(m-nitrobenzylidene) cyclohexanone (1) and 2-benzylidene-6-(p-fluorobenzylidene) cyclohexanone (2). They are similar in structure, but containing different functional groups in one of the benzene rings: -NO2, and -F. Their dose-dependent effect on the germination and growth of Triticum aestivum and Barbarea vulgaris was investigated.