Photosyntetic processes and accumulation of fatty acids in maize plants during ontogenesis under the influence of fertilization and growth regulator
DOI:
https://doi.org/10.32636/01308521.2021-(70)-1-10Keywords:
maize, phases of vegetation, fertilizer, growth regulator, photosyntetic processes, fatty acidsAbstract
The aim of the research was to identify quantitative changes in the processes of photosynthesis and fatty acid composition of the vegetative mass of maize plants during ontogenesis and under the influence of mineral fertilizers and growth regulators.
It is established that the functional activity of the photosynthetic apparatus in the leaves of maize plants increases with their age and depends on soil fertilizer and the influence of growth regulators. This is confirmed by the fact that the leaves of corn plants accumulate photosynthetic pigments during the period of intensive growth and under the influence of mineral fertilizers and growth regulator Zeastimulin.
It is investigated that the increase in the functional activity of the photosynthetic apparatus of maize plants in the phase of intensive growth is accompanied by an increase in the concentration of esterified fatty acids and an increase in the ratio of the content of more valuable linolenic polyunsaturated fatty acid to the less valuable linoleic polyunsaturated fatty acid in the stem and leaves. Under the influence of mineral fertilizer and growth regulator Zeastimulin in the phase of intensive growth of maize plants there is an accumulation of esterified fatty acids and more higher ratio of polyunsaturated fatty acid linolenic to polyunsaturated fatty acid linoleic in the stem and leaves.
It is noted that the formation of generative organs of maize plants leads to a gradual decrease in the concentration of esterified fatty acids and a decrease in the ratio of polyunsaturated fatty acid linolenic to polyunsaturated fatty acid linoleic in the stem and leaves.
The level of esterified fatty acids and the ratio of polyunsaturated linolenic fatty acid to polyunsaturated linoleic fatty acid in the stem and leaves of maize plants under the action of mineral fertilizer and growth regulator Zeastimulin remain high.
It is stated that the intensity of accumulation of raw mass by corn plants increases with their age and reaches maximum values in the phase of ejection of panicles and flowering of cobs. Under the influence of soil fertilizer and growth regulator Zeastimulin, the rate of accumulation of raw mass by maize plants increases.
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Copyright (c) 2021 Й. Ф. РІВІС, В. В. ФЕДАК, О. В. МАМЧУР, О. Я. КЛИМ (Автор)
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