ÖRÇEN, Nesrin Ege University - Faculty of Agriculture - Department of Field Crops, Turkey , TOSUN, Muzaffer Ege University - Faculty of Agriculture - Department of Field Crops, Turkey , İRGET, Eşref Ege University - Faculty of Agriculture - Department of Field Crops, Department of Soil Science, Turkey

Effect of Zinc Enriched Composed Nitrogen Fertilizer on Some Yield and Quality Parameters of Some Durum Wheat Cultivars (Triticum durum Desf.)

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Zinc is an essential micronutrient for biological systems because of its role in protein synthesis and metabolism. In this study a field experiment was designed to study the effects of zinc enriched composed nitrogen fertilizer on grain yield and quality in durum wheat (Altar-84, Gediz-75, Ege-88, Kiziltan-91, and Kunduru-1149). The experiments were conducted in split plot arrangement with four replications in Bornova and Menemen locations during two growing seasons. In all the plots, single rate of 16 kg/da N fertilizer was applied with different forms (20-20-0, 20-20-0+Zn and 15-15-15+Zn). Results from analyses of variance indicate that there were significant differences among cultivars in all studied characteristics (grain yield, 1000- kernel weight, test weight, grain protein content, SDS-sedimentation) in all environments. Effect of N fertilizer form on yield, 1000-kernel weight, test weight, grain protein content and SDSsedimentation, varies depending on year and location. It was concluded that Zn addition led to increased in 1000- kernel weight all of cultivars. Application of N as 15-15-15+Zn form led to higher increase of test weight in compare to 20-20- 20+Zn for all cultivars except for Altar-84. The Zn addition to composed N fertilizer had positive effect on average grain protein content of Gediz-75 and Ege-88 in all locations and years.

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Nitrogen form , Grain yield , Grain protein content.

The Journal Of Ege University Faculty Of Agriculture

83