Uman NUH | today: 10/18/2024
| Author(s) |
Ovcharuk A.V., Candidate of Agricultural Science, , Ovcharuk V.I., Doctor of Agricultural Sciences, , Ткач О. В., , , Kravchenko V. S., Candidate of Agricultural Sciences, , Uman National University of Horticulture, Ukraine Мількевич Д. О., , , |
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| Category | The Agronomy | ||
| year | 2023 | issue | Issue number 103. Part 1 |
| pages | 308-315 | index UDK | 631.559:631.543 | DOI | 10.32782/2415-8240-2023-103-1-308-315 (Link) |
| Abstract | The article presents the results of experimental studies that solve the scientific problem of studying the influence of the trace element zinc on the content of organic acid-soluble and labile phosphorus nucleotides in the roots and leaves of different layers of common bean/ The research was conducted during 2022–2023 under the National Development Program "Innovative Varietal Bean Growing Technologies in the Conditions of the Right Bank Forest Steppe of Ukraine" (state registration No. 0121U111195). Beans were grown by the method of water culture in liter plastic vessels of 20–25 plants on the following nutrient mixture: Ca(NO3)2 · 4H2O – 625; KH2PO4 – 150; MgSO4 · 7H2O – 125. (mg/kg). The results of the research established that in the version of the experiment with the introduction of zinc, the above-ground part of the bean plant was on average 57.90 g, without the introduction of zinc – 48,70 g, which is 9,20 g less. The content of organic acid-soluble phosphorus, represented by sugar phosphates and labile nucleotides, decreased with zinc deficiency. Thus, during a 3-day shortage, the phosphorus content of sugar phosphates in leaves decreased by 3,7 %, labile phosphorus of nucleotides by 4,2 %, and in roots by 7,2 and 9,3 %, respectively. In plants that grew without zinc, the phosphorus content of sugar phosphates in the leaves of the 1st layer decreased by 19,0 %, in the leaves of the 2nd layer by 15,3 %, and labile phosphorus of nucleotides by 12 and 7 %, respectively. It should also be noted that during the 15-day shortage of labile phosphorus, nucleotides in the experimental variant decreased by 10,6 % compared to the control, and by 18,6 % during the 60-day shortage. A decrease in the content of labile nucleotides under zinc deficiency indicates an increase in phosphatase activity in the tissues of common bean plants. | ||
| Key words | common bean, variety, dry matter, trace elements, zinc, forms of phosphorus, leaves, cultivation technology | ||