Uman NUH | today: 06/29/2020

Effect of 1-naphthaleneacetic acid on the formation of the photosynthetic apparatus and yield of tomatoes

Author(s) Buinyi O. V., , Post-graduate student of the Department of Biology, Vinnitsya State Pedagogical University after named Mykhailo Kotsyubynskiy
Kuryata V. G. , Doctor of Biological Sciences, Professor, Head of the Department of Biology, Vinnitsya State Pedagogical University after named Mychailo Kotsubinskyi
Rogach V. V. , PhD of Biological Sciences, Assistant of Professor of the Department of Biology, Vinnitsya State Pedagogical University after named Mychailo Kotsubinskyi
Category Olericulture
year 2015 issue №2, 2015
pages 17-20 index UDK 635
DOI
Abstract The article is devoted to studying of the action of synthetic growth stimulator with auxin mechanism of operation – 1-naphthaleneacetic acid on morphometric indicators on the yielding capacity of tomatoes. The results of the research suggests that variety of Bobcat tomato crops by using 0,005 % preparation solution in a budding phase has positively influenced on the formation of crop photosynthetic apparatus in coenosis. We have established that due to the action of growth stimulator the number of leaves of studied plant has significantly increased, the total area of leaf surface has risen and the indicators of humid and dry substance weight in the leaves have increased. It has shown that 1-naphthaleneacetic acid has thickened the leaf plates of tomatoes plants by the overgrowth of chlorenhyma – cells of basic assimilative tissue. The results of three years of studies suggest about the increasing indicator of photosynthesis net productivity in average on 62 % and the leaf index on 44 % compared with control. The analysis of the given results suggests that the increasing of the area of leaf surface, the number and weight of the leaves, the improvement of leaf’s mesostructure organization and the increasing of photosynthesis net productivity indicators have led to the significantly increasing of the yield of tomatoes.
Key words tomato, 1-naphthaleneacetic acid, morphogenesis, photosynthetic apparatus, yield
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