Determining The Effects of Different Nitrogen Doses On Grain Quality in Some Six-Row Barley Varieties Under Cukurova Conditions

Abstract

This research it was conducted to learn about the grain quality of different nitrogen doses in some six rowed barley varieties under the Çukurova conditions. For this purpose; In the 2018-2019 growing season, 4 different types of barley were planted with 6 different nitrogen doses. This trial carried out in the Eastern Mediterranean Agricultural Research Institute in Adana; The parcels divided in random blocks were planned in 3 replications according to the trial pattern. In the trial, the main plots of 6 different nitrogen dose (0-5-10-15-20-25 kg N/da) and 4 sub-parcels of different barley varieties (Akhisar-98, Dolunay, Güldeste ve Vamıkhoca-98) was placed. 1/3 of the nitrogen doses were given at planting and the remain 2/3 in the form of urea (46% N) during the tillering period. Within the scope of this study; Laboratory samples prepared after barley harvest and grain moisture, crude ash, crude oil, crude fiber, crude protein and starch ratio values were examined. According to the results obtained, excluding moisture and protein ratios on the basis of varieties statistically significant differences were determined in ash, oil, fiber and starch ratios among other examined quality characteristics. When look at the effect of the nitrogen doses applied on the quality values, it only causes statistically significant differences in protein contents, it does not seem to cause significant differences in other quality criteria. All nitrogen doses in terms of protein; Between 8,43% and 9,03% and in the same group (a). The highest protein (9,03%) and lowest starch ratio (61,60%) values were determined at 25 kg N/da nitrogen dose.