The effect of the 1,2,3-triazolo[5,1-b][1,3,4]thiadiazines on Solanum lycopersicum L. seed germination

O.A. Vysokova¹, T.A. Kalinina¹, T.V. Glukhareva¹²*, A.A. Kochubei³ and O.A. Cherepanova³

¹Ural Federal University, Mira street 19, RU620002 Ekaterinburg, Russia
²Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Sofia Kovalevskaya street 22, RU 620990, Ekaterinburg, Russia
³Botanical Garden UB RAS, 8 Marta street 202a, RU620144 Ekaterinburg, Russia
*Correspondence: taniagluhareva@yandex.ru

Abstract:

In recent years chemical pesticides are being replaced by environmentally friendly and universal means of plant protection that are able to exert a complex effect on the plant (stimulate growth and development, improve metabolic processes, develop resistance to pathogens, etc.). The effect of new synthetic growth regulators of the 1,2,3-triazolo[5,1-b][1,3,4]thiadiazine class and trade phytohormones (6-BAP, GA and TDZ) on the growth processes, growth energy and vitality of tomato seeds, as well as morphological parameters of seedlings was researched in this article. It was revealed that the effect of synthesized compounds on seed vigor and viability of seedlings are superior to commercial phytohormones. In the early stages of germination the seed vigor of tomato seeds treated with the compounds TT1-TT5 were superior to one in treatments with phytohormones and in control experiment. As a result of the experiment, the most viable seedlings were formed into the treatments TT1, TT2 and TT3 (in all studied concentrations). Tomato seedlings treated with 6-BAP and GA at a concentration of 5 mg L^-1 produced the worst results.

Key words:

The effect of ethyl 5′-(4-methoxybenzoyl)-5′,7′-dihydrospiro[cyclopentane-1,6′-[1,2,3]triazolo[5,1-b][1,3,4]thiadiazin]-3′-carboxylate on Pinus sylvestris L. seed germination

Т.А. Kalinina¹, О.А. Vysokova¹, L.А. Khamidullina¹², А.А. Kochubei³, О.Е. Cherepanova³ and Т.V. Glukhareva¹*

¹Ural Federal University named after the first President of Russia B.N. Yeltsin, Mira street 19, RU620002 Ekaterinburg, Russia
²Postovsky Institute of Organic Synthesis UB RAS, Sofia Kovalevskaya street 22, RU620990 Ekaterinburg, Russia
³Botanical Garden UB RAS, 8 Marta street 202a, RU620144 Ekaterinburg, Russia
*Correspondence: taniagluhareva@yandex.ru

Abstract:

Plant growth stimulators are capable of enhancing both agricultural output and the rate of plant maturation, consequently improving the total crop yield and increasing their resistance to disease and adverse environmental conditions. This is why such compounds are used in the cultivation of both agricultural and ornamental plants. The aim of this work was to study the effect of ethyl 5′-(4-methoxybenzoyl)-5′,7′-dihydrospiro[cyclopentane-1,6′-[1,2,3]triazolo[5,1-b][1,3,4]thiadiazin]-3′-carboxylate on Pinus sylvestris L. seed germination. The article describes the synthesis of ethyl 5′-(4-methoxybenzoyl)-5′,7′-dihydrospiro[cyclopentane-1,6′-[1,2,3]triazolo[5,1-b][1,3,4]thiadiazin]-3′-carboxylate and the data from spectral and X-ray crystal analysis. The results of the experimental stimulation of Pinus sylvestris L. seed germination using spiro-1,2,3-triazolo[5,1-b]1,3,4-thiadiazine are given compared to the commercially available phytohormones thidiazuron and 6-benzylaminopurine. The estimation of germination, vitality, healthy seed ratio and cotyledon length indicated that the tested compound at a concentration of 0.5 mg L^-1 had an effect similar to 6-benzylaminopurine: indeed, the speed of germination and fungal invasion rate exceeded the effect of 6-benzylaminopurine.

Key words:

1, 2, 3-triazoles, 6-benzylaminopurine, phytohormones, Pinus sylvestris L., plant growth regulators, seed germination, thidiazuron