Yield and grain quality of winter wheat under Southern Steppe of Ukraine growing conditions
2014
М. М. Корхова
The results of three years study of the effect of sowing time and seed application rates on yield and grain quality of different varieties of winter wheat under the conditions of South Steppe of Ukraine were presented. It was found that winter wheat provides optimal combination of high yield and grain quality in case of sowing in October 10 with seed application rate of 5,0 million seeds/ha. The highest yield – 4,59 t/ha on average in 2011–2013 was obtained for the variety of Natalka when sowing in October 10 with seed application rate of 5 million germinable seeds. With increasing seed application rate from 3 to 5 million seeds/ha, protein content in winter wheat was decreased by 0,3%, gluten – by 0,6%. The variety Natalka formed the highest quality grains when sowing in October 20 with seed application rate of 3 million seeds/ha, in this case protein content was 15,8%, gluten – 32,9%. It is proved that early sowing time – September 10 leads to yields reduction and grain quality deterioration for all winter wheat varieties.
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