The Effect of Nitrogen Dosage Applications on Yield and Quality in Durum Wheat (Triticum durum Desf.)
Keywords:Durum wheat, Nitrogen, Yield, Test weight, Crude protein
AbstractIn this study, the effect of nitrogen doses on yield and quality characteristics of durum wheat varieties (Levante, Zenit, Yelken 2000, Dumlupınar, Eminbey, Altın, Ç-1252, and Kızıltan-91) was investigated. The research was conducted in Isparta ecological conditions in 2010-2012 seasons using different nitrogen doses of 0, 5, 10 and 15 kg/da N. The experiments were carried out for two years using randomized complete block design with three replications in factorial arrangement. All of the phosphorus (6 kg/da P2O5) and half of the nitrogen were given with sowing and the other half of the nitrogen was given during the tillering period. As a result of two years in this study, it was determined that nitrogen doses have a significant effect on all examined characteristics (number of spikes per m2, grain yield, 1000 grain weight, test weight, vitreousness and crude protein ratio). But the effect of nitrogenous fertilization varied significantly according to the varieties. In general, increasing in the amount of nitrogen above 10 kg/ha did not create a statistically significant increase in other characteristics except 1000 grain weight. As a result when grain yield and quality characteristics are taken into consideration, 10 kg/da N dose and Çeşit-1252, Altın, Kızıltan-91 and Dumlupınar varieties could be recommended in Isparta conditions.
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