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id: 27795
Title: Features of sheet apparatus of sugar beet under retardants treatment
Authors: Shevchuk О., Shevchuk V.
Keywords: Retardants, mesostructural organization, sugar beet (Beta vulgaris L.)
Date of publication: 2021-02-03 09:21:28
Last changes: 2021-02-03 09:21:28
Year of publication: 2021
Summary: We studied the influence of antigibberellin compounds with different mechanisms of action-Paclobutrazole (0,05 %) and Dextrel (0,3 %) on the formation of leaf surface, structure of photosynthetic apparatus and features of leaf functioning under retardants artificial growth control on sugar beet plants. We found that retardants treatment slowed the growth of total leaf surface of sugar beet. At the same time, application of Paclobutrazole (0,05 %) caused a greater retardation effect on plant growth. The number of dead leaves of treated plants during vegetation season was unchanged compared to control. We established that decrease in the leaf area was accom-panied by their thickening due to increase in the size of palisade and spongy parenchyma cells, decrease in the size of epidermal cells and increase in the number of stomatas per unit leaf area. Stomatal index which character-izes the ratio of number of stomata form to the total number of epidermal cells on the same leaf area was identi-cal for all experimental variants, notably, the ratio of stomata and other epidermal cells not changed under re-tardants application. Retardants are a powerful means to regulate the assimilation apparatus activity, one of the donor-acceptor system component, and can be used for the targeted regulation of plastic substances redistribu-tion in sugar beet.
Publication type: Статті у зарубіжних наукових фахових виданнях (Copernicus та інші)
Publication: Annali d’Italia. Іtaly: Florence, 2021. № 15, vol. 1. Р. 3-6.
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