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Öğe Macro and Micro Element Contents of Several Oat (Avena sativa L.) Genotype and Variety Grains(JIHAD DANESHGAHI, 2017) Ozcan, Mehmet Musa; Bagci, Ahmet; Dursun, Nesim; Gezgin, Sait; Hamurcu, Mehmet; Dumlupinar, Ziya; Uslu, NurhanIn current study, macro and micro element contents of oat grains were determined by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). P contents of grains were found between 2428.72 mg/kg (Arslanbey) and 4557.25 mg/kg (TL10). While K contents of oat samples change between 3055.99 mg/kg (TL63) and 5621.12 mg/kg (TL8), Ca contents of oats ranged from 568.50 mg/kg (TL63) to 1269.97 mg/kg (TL86). In addition, the highest and lowest Mg were determined in Kirklar (2024.88 mg/kg) and TL73 (1252.48 mg/kg) oat samples, respectively. Iron contents of oat changed between 29.98 mg/Kg (TL7) and 80.78 mg/Kg (Arslanbey). While Zn contents of oat samples change between 15.50 mg/kg (Arslanbey) and 37.68 mg/kg (TL/76), Mn contents ranged from 25.82 mg/kg (TL63) to 62.55 mg/kg (Kirklar). Also, the highest Zn and Cu contents of oat grains were found in TL76 (37.68 mg/kg) and TL67 (8.67 mg/kg). Locations had significant effect on all macro and micro nutrient concentrations of oat grains. The results presented here suggest that oat grains could serve as a good source of mineral elements.Öğe MEASURING THE IMPACT OF AGRICULTURAL RESEARCH: THE CASE OF NEW WHEAT VARIETIES IN TURKEY(CAMBRIDGE UNIV PRESS, 2015) Mazid, Ahmed; Keser, Mesut; Amegbeto, Koffi N.; Morgounov, Alexey; Bagci, Ahmet; Peker, Kenan; Akin, MustafaThis paper summarizes a study initiated by the Turkish General Directorate of Agricultural Research and ICARDA/CIMMYT Wheat Improvement Program on the adoption of five new winter and spring wheat varieties developed and released by the Turkish national breeding program and through international collaboration in the past 10 years. The study results are based on a survey of 781 households selected randomly in the Adana, Ankara, Diyarbakir, Edirne, and Konya provinces of Turkey. The five new wheat varieties are compared to old improved varieties released prior to 1995 that are also still grown by farmers. Technical and biological indicators of impacts including crop productivity are measured to determine the impact of these varieties. Yield stability is assessed by comparing average yields in normal, good and dry years and by comparing the coefficients of variation of yields by variety. Profitability is measured by the gross margin generated per unit of land. Household income from wheat and for all economic activities are estimated and compared between adopters and non-adopters. Adopters of the new varieties have higher per-capita income than non-adopters as compared to the same group using old varieties. However, the overall impact of the improved varieties is generally low, mainly due to their low adoption levels. Farmers' knowledge and perception of certain variety characteristics and unavailability of adequate and timely seed are the main reasons. Increasing adoption has the potential to improve household income and this requires revising wheat impact pathway to achieve the expected impact.