Abstract:
This article is dedicated to the research of analysis of the dependence of growth
and development of winter wheat varieties Khersonska Awnless and Odeska 267
on conditions of moisture provision and mineral nutrition status, impact of
indicated factors and formation of yielding capacity and grain quality. Years of
research significantly varied in rainfall amount during growing season. According
to moisture supply, 2016 was dry, 2017 was average humid and 2018 was
subhumid, which had an impact on grain yield equation. The lowest winter wheat
productivity level was formed in 2016. Under supplemental watering without
fertilizers the yield of the Khersonska Awnless variety was at the level 2.07 t/ha,
and of Odeska 267 variety - 1.51 t/ha. Under provision of vegetative watering, the
yielding capacity increased to 3.14 and 2.94 t/ha.
Fertilizers also had significant impact on production processes of plants, accumulation of over
ground biomass, area of assimilating surface that resulted in the yield increase of winter wheat.
On average, over the years of research the most significant influence among considered factors
had fertilizers - 43%, irrigation - 32% and variety content of winter wheat - 9%.
