Peculiarities of the formation of photosynthetic indicators in proso millet under organic production in the Right-Bank Forest-Steppe of Ukraine.
Year: 2024
Type: article
Abstract: Purpose. The aim of the study was to determine the effectiveness of using biopreparations in proso millet cultivation technology, particularly their influence on photosynthetic potential, net photosynthetic productivity, and dry matter accumulation. Methods. Field experiments were conducted in 2022–2024 at the experimental site of private agricultural enterprise named after T. Shevchenko (Kyiv region). The study examined proso millet varieties ‘Omriiane’ and ‘Bila Altanka’, applying the biopreparations Biocomplex-BTU and Organic-Balance in different treatments: seed treatment, foliar application at various growth stages, and the combined use of the preparations. The parameters of photosynthetic activity, assimilation area, and dry matter accumulation were evaluated. Results. The results showed that the use of biopreparations contributed to an increase in photosynthetic potential and net photosynthetic productivity. In the tillering–panicle emergence phase, the photosynthetic potential of the ‘Omriiane’ variety reached 1.03 million m² × days/ha, while in the panicle emergence–ripening phase, it increased to 1.32 million m² × days/ha, which was 17.5% higher than in the control variants. A similar trend was observed in the ‘Bila Altanka’ variety. Net photosynthetic productivity in the ripening phase increased to 7.64 g/m² per day for ‘Omriiane’, also exceeding the control values. Biopreparations contributed to a 15.0–17.2% increase in the plant assimilation area, positively affecting dry matter accumulation. In the ripening phase, the maximum dry matter accumulation was recorded at 15.98 t/ha for ‘Omriiane’ and 14.63 t/ha for ‘Bila Altanka’. Conclusions. The conclusions indicate that the application of biological preparations is an effective method for increasing proso millet productivity, particularly under organic farming conditions. Biopreparations positively influence the photosynthetic apparatus of plants, improve water balance, enhance resistance to stress factors, and ensure stable crop yields. The obtained results can be used to develop effective proso millet cultivation technologies, considering the specifics of organic production.
Authors: M. M. Fedorchenko, L. M. Karpuk
Institution: Bila Tserkva National Agrarian University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4409700626