Influence of plant growth regulators with the reverse effect on morphogenesis, leaf apparatus and productivity of tomatoes
Journal Title: «Таврійський науковий вісник» - Year 2018, Vol 100, Issue 1
Abstract
The article describes the study of the effect of influence of gibberellin acid and chlormequat chloride on the growth, development and productivity of tomatoes is studied. It has been estab-lished that retardant chlormequat chloride reduced the linear sizes of tomato plants, the number of leaves per plant, the mass of crude and dry matter of leaves, the mass of dry matter of the whole plant, the area of leaf surfaces and the leaf index. Along with this, antihyberellinic preparation increased the specific surface leaf density, increased the content of the amount of chlorophylls in them, and caused an increase in the index of net productivity of photosynthesis and chlorophyll index of plantings. Under the action of gibberellin acid, the plant height increased, the number of leaves per plant and the masses of their dry and raw matter, the mass of the dry matter of the whole plant increased as well, the area of the leaf surface and the leaf index of plantations became larger. The growth stimulant practically did not affect the content of photosynthetic pigments in the leaves, as well as the net productivity of photosynthesis and the specific surface density of the leaf. Both preparations significantly increased the volume of cells of the parietal stool and thick-ened leaf blisters. Such changes in growth processes, morphogenesis, mesostructure, and cenotic indices of to-mato plantations optimized the biological productivity of the crop.
Authors and Affiliations
О. І. Буйна, О. В. Буйний, В. В. Рогач, В. Г. Курʼята
Keywords
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