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THE EFFECT OF 1-NAPHTHYLACETIC ACID ON MORPHO-PHYSIOLOGICAL PARAMETERS AND YIELD OF SWEET PEPPER PLANTS ANTEY

Author(s) Kuryata V. G. , Doctor of Biological Sciences, Professor, Head of the Department of Biology, Vinnitsya State Pedagogical University after named Mychailo Kotsubinskyi
Kushnir O. V. , , , Vinnytsia State Pedagogical University named after M. Kotsubynsky
Category 201 "Agronomy"
year 2020 issue №1, 2020
pages 25-29 index UDK 581.1[661.162.65:582.672.61]
DOI 10.31395/2310-0478-2020-1-25-29 (Link)
Abstract The article studies the influence of synthetic growth regulator of plants 1-NAA on morphometric features of the leaf apparatus formation of sweet pepper. It is established that under its action, it is possible to regulate the processes of plant growth and development. The results of studies showed that the treatment of sweet pepper Antey plantations with 0,005% solution of 1-naphthylacetic acid (1- NAA) had a positive effect on the linear dimensions. The total leaf area, the weight of the crude leaf matter increased, as well as the crop yield. According to the obtained results, the leaves of the experimental variant differed by a greater thickness due to the growth of the main photosynthetic tissue - chlorenchyma. The volume of the columnar parenchyma and the linear cell sizes of the spongy parenchyma increased significantly. However, with the action of 1-NAA there was registered an increase of the chlorophylls amount and the net productivity of photosynthesis. Therefore, the use of 0.005% 1-naphthylacetic acid (1-NAA) leads to the formation of a more developed photosynthetic apparatus, which allows the plant to form a powerful donor potential and is a precondition for increasing crop yields. The analysis of sweet pepper yield under the action of 1-NAA indicates that changes in the morphometric parameters and mesostructure of the leaves led to an increase in the productivity of sweet pepper crop.
Key words sweet pepper (Capsicum annuum L.), 1-naphthylacetic acid, morphogenesis, photosynthetic apparatus, net photosynthesis productivity, yield
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