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Correspondence to Author: Tsygankova V.A.^1*, Andrusevich Ya.V.¹, Kopich V.M.¹, Vasylenko N.M.¹, Kachaeva M.V.¹, Pilyo S.G.¹, Kozachenko O.P.¹, Bondarenko O.M.¹, Azizov I.V.², Brovarets V.S.¹. 

¹Department for Chemistry of Bioactive Nitrogen-Containing Heterocyclic Compounds, V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine.
²Institute of Molecular Biology and Biotechnologies, Ministry of Science and Education, Baku, Azerbaijan.

Abstract

The regulatory effect of synthetic low-molecular-weight azaheterocyclic compounds, pyrimidine derivatives on the growth of maize (Zea mays L.) variety Twist during the vegetation phase under heat and drought stress conditions was studied. The average parameters of maize plants grown in a solution of synthetic compounds, pyrimidine derivatives at a concentration of 10-6M (i.e., length of the shoots (mm), length of the roots (mm), number of the roots (pcs), biomass of 10 plants (g), content of chlorophylls and carotenoids (mg/g fresh weight), total soluble protein (g/100 g FW), and catalase activity (mmol of decomposed H2O2 /min per 1 mg of protein) in plant leaves), were measured at the end of the 4-week period and compared with similar parameters of maize plants grown in a solution of auxin IAA at the same concentration of 10-6M, or maize plants grown in distilled water (control). The conducted study showed that the regulatory effect of pyrimidine derivatives on the parameters of maize plants is similar to or exceeds the regulatory effect of auxin IAA and is differentiated depending on their chemical structure. The most active synthetic compounds, pyrimidine derivatives, have been identified that improve the growth and development of maize plants, increase the content of chlorophylls, carotenoids, total soluble protein and catalase activity in the leaves of maize plants growing under conditions of heat and drought stress. The use of the synthetic compounds, pyrimidine derivatives, in agricultural practice is proposed to improve the growth and development of maize, increase productivity and tolerance to heat and drought stress.

Citation:

Tsygankova Victoria Anatolyivna, Protective Effect Of Synthetic Azaheterocyclic Compounds, Pyrimidine Derivatives On Maize Growth Under Heat And Drought. Journal of Advances in Plant Sciences 2025.