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Peculiarities of the Chemical Composition of Kohlrabi Varieties Cultivated in Ukraine

Ketskalo Viktoriia, Voitovska Viktoriia, Kononenko Lidiia, Kovtuniuk Zoia, Herasymchuk Helena, Borysenko Vitalii, Storozhyk Larysa, Yevchuk Yana, Poltoretska Nataliia, Vyshnevska Lesia

Ecological Engineering & Environmental Technology

2023

Vol. 24, iss. 5

46--50

The paper presents the results of experimental research on the peculiarities of the chemical composition of kohlrabi varieties ‘Azur’, ’Videnska Synia’, ‘Videnska Bila’ and ‘Hihant’ cultivated in field conditions in the Forest Steppe of Ukraine. The goal of the research was to track changes in the biochemical composition of kohlrabi under the effect of varietal factor. The experiment was carried out in the years 2018−2021. It was found that the vegetation period of the variety ‘Hihant’ is 145 days, while the vegetation period of varieties ‘Azur’, ‘Videnska Synia’ and ‘Videnska Bila’ ranges between 60 and 80 days. As a result of the longer vegetation period, ‘Hihant’ overcomes other varieties under study by the content of water (88.7%) and dietary fiber (2.1 g/kg). Kohlrabi variety ’Videnska Synia’ is the most suitable for dietary nutrition, since it has a higher content of vitamins A, B1, B9, B4, C, B3, and essential amino acids, such as arginine, valine, histidine, isoleucine, leucine, lysine and phenylalanine, compared to other varieties. The content of linoleic, linolenic and palmitic acids is also the highest in ’Videnska Synia’. However, the content of vitamin B6 is the highest in ‘Hihant’.

Lentil Yield Performance and Quality as Affected by Moisture Supply

Prysiazhniuk Oleh, Mostoviak Ivan, Yevchuk Yana, Tkachenko Hennadii, Prokopenko Eduard, Kononenko Lidiia, Prykhodko Vitalii, Vyshnevska Lesia, Poltoretska Nataliia

Ecological Engineering & Environmental Technology

2022

Vol. 23, iss. 5

25--33

The article presents alternatives for the use of additional components of cultivation technology for lentil that are aimed at increasing tolerance to a water deficiency at the early stages of growth and development, namely: (i) soil amendment with moisture-retaining polymers; (ii) seed treatment with a growth regulator contributing to a better formation of the root system; (iii) the use of biological product providing for the formation of the soil mycorrhizal biota; and (iv) foliar application of micro fertilizers. The best in terms of the effect on the growth and development of plants appeared the following treatments: seed treatment with the growth regulator Kelpak SC (3 l/t), soil amendment with moisture-retaining polymers Aquasorb (200 kg/ha) and mycorrhizal bio preparation Mycofriend (1 l/ha), followed by the treatment of plants with micro fertilizer Reakom-SP-Legumes (3 l/ha, BBCH 14) or Quantum-Legumes (1.0 l/ha, BBCH 14). These treatments contributed to an increase in the number of stems of the 2nd and 3rd orders by 1.8 and 2.0, leaves by 8.6 and 8.8, and nods by 15.3 and 16.1, respectively, compared to the control treatment. In addition, a combination of these plant products had a positive impact on the formation of filled beans, and the plants formed 23.5−23.7 filled beans. Also, these treatments provided 1.6−1.8 times increase in the number of seeds per bean compared to the control. Pre-sowing seed treatment with the growth regulator Kelpak SC (3 l/t), application of moisture-retaining polymers Aquasorb (200 kg/ha) and mycorrhizal bio preparation Mycofriend (1 l/ha), followed by foliar application of fertilizers Reakom SC Legumes (3 l/ha, BBCH 14) or Quantum-Legumes (1.0 l/ha, BBCH 14) contributed to the formation of lentil yield of 3.15 and 3.17 t/ha, respectively, over the years of the experiment. The integral action of these plant products contributed to obtaining seeds with a higher content of proteins, fats, and carbohydrates, as well as vitamins, macro and microelements. Moreover, young lentil sprouts can resist adverse environmental factors due to the richer biochemical stocks formed in a seed.