V. V. Lykhochvor
V. I. Pushchak
It was discovered that under conditions of sufficient humidity of the western forest-steppe of Ukraine the highest yield has the Yarina variety (2.82–3.40 t/ha), somewhat lower the Pamyat variety (2.60–3.15 t/ha), while the lowest yield was observed in the Triumf vatiety (1.72–2.20 t/ha). The lowest yield of Triumf variety in our research could be explained by its less resistance to infectious diseases under conditions of the western forest-steppe.
It was revealed that among the six studied sowing rates, i.e. 0.4, 0.5, 0.6, 0.7, 0.8, and 0.9 mln/ha, the highest yield under conditions of the western forest-steppe was obtained in the range of sowing rates of 0.7–0.8 mln/ha in all cicer arietinumvarieties. The variety Yaryna at such sowing rates demonstrated the yield of 3.31–3.40 t/ha, which is more than the yield of Pamyat variety by 0.21–0.25 t/ha and of Triumf variety by 1.17–1.20 t/ha. Under conditions of sufficient moisture, as it was expected, the lowest yield was obtained at minimal sowing rates. For instance, the yield of Yaryna variety at a sowing rate of 0.8 mln/ha was 3.40 t/ha, while at 0.4 mln/ha it was only 2.82 t/ha, i.e. lower by 0.58 t/ha. The same pattern was observed in case of other varietie as well.
It was discovered that the cicer arietinum yield grew up to 2.30 t/ha, or by 1.02 t/ha, when the soil herbicide Reiser KE (2.5 l/ha) was used. When the herbicide was applied, the yield almost doubled, while during appling the Fastak, K.E. (alpha-cypermethrin, 100 g/l) in a concentration of 0.15 l/ha had no effect on the yield.
In case of the three-step application scheme of fungicides such as Rex Duo, KS (epoxiconazole, 187 g/l + thiophanate-methyl, 310 g/l) in a concentration of 0.5 l/ha at the early phase of budding, Abacus (pyraclostrobin, 62.5 g/l + epoxiconazole, 62.5 g/l) in a concentration of 1.5 l/ha during flowering, and Folikur 250 EW, WB (tebuconazole, 250 g/l) in a concentration of 1.0 l/ha during seed filling, the yield increased by 0.90 t/ha compared to the variant where fungicides were not applied. In total, due to the use of plant protection products in the experiment, the yield increased from 1.28 t/ha to 3.21 t/ha, i.e. by 1.93 t/ha (150.8 %).
Key words: Cicer arietinum, variety, plant protection products, sowing rates, yield.
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Ключевое название (Key title):
Vìsnik agrarnoï nauki Pričornomor'â (Online)
Сокращенное ключевое название (Abbreviated key title):
Vìsn. agrar. nauki Pričornomor'â (Online)
Параллельное название (Parallel title):
Ukrainian Black Sea region agrarian science