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THE FORMATION OF A PHOTOSYNTHETIC APPARATUS AND THE PERFORMANCE OF TOMATOES UNDER THE INFLUENCE OF TEBUCONAZOLE

Author(s) Buinyа O. І. , , Post-graduate Student of the Department of Biology , Vinnitsya State Pedagogical University after named Mykhailo Kotsyubynskiy
Rogach V. V. , PhD of Biological Sciences, Assistant of Professor of the Department of Biology, Vinnitsya State Pedagogical University after named Mychailo Kotsubinskyi
Kuryata V. G. , Doctor of Biological Sciences, Professor, Head of the Department of Biology, Vinnitsya State Pedagogical University after named Mychailo Kotsubinskyi
Category Plant physiology
year 2016 issue №2, 2016
pages 72-76 index UDK [581.1:582.926.2]:661.162.65
DOI
Abstract The paper studies the influence of the triazolderivative antigibberellin chemical tebuconazole (EW-250) on the morphometric parameters and crop capacity of Bobcat tomatoes. The research results indicate that the processing of plants with 0.025% solution of the chemicals in the bud stage optimized the process of formation of the photosynthetic apparatus of a crop in cenosis and increased its productivity. It has been found that under the action of growth inhibitor plant height, compensated for leaf number on the plant and leaf surface area decreased. The mass indicators of wet and dry matter of leaves for tebuconazole actions were similar to the control ones. It has been proved that the chemicals caused an increase in the specific surface of the sheet due to cell proliferation of primary assimilation tissue – chlorenchyma and the growth of columnar parenchyma cells, which compensated for the decrease in leaf area, number of leaves per plant and a puff indicator index. At the same time the growth and chlorophyll content of chlorophyll index took place. These changes resulted in an increase in photosynthetic productivity of tomato plants, which led to a significant increase in the capacity of the donor, the formation of excess assimilates, resulting in an increase in crop capacity.
Key words Solánum lycopérsicum L., retardant, tebuconazole, morphogenesis, mesostructure, the photosynthetic apparatus, crop capacity
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