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    ASSESSMENT OF PERFORMANCES OF YIELD AND FACTORS AFFECTING THE YIELD IN SOME SOYBEAN VARIETIES/LINES GROWN UNDER SEMI-ARID CLIMATE CONDITIONS
    (Corvinus Univ Budapest, 2018) Arslan, H.; Karakus, M.; Hatipoglu, H.; Arslan, D.; Bayraktar, O., V
    The aim of this study was to determine the performances of yield and factors affecting the yield of 9 soybean lines and 2 standard soybean varieties grown in the soybean production seasons of 2012 and 2013 under semi-arid climatic conditions. The results indicated that performances of yield and other characteristics of soybean varieties/lines obtained in both trial seasons were significantly different from each other. The average temperature of experimental site in the first plant growing season was higher than that of the second year. The difference in temperatures between two growing seasons adversely influenced the yield, parameters affecting the yield and some quality parameters. Negative relationship between soybean yield and the temperature, an environmental factor that cannot be controlled during the growing season of the soybean, was obtained.
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    THE EFFECT OF ANNUAL TEMPERATURE CHANGES ON SOME IMPORTANT QUALITY TRAITS OF SOYBEAN (GLYCINE MAX L.) GENOTYPES
    (Corvinus Univ Budapest, 2019) Arslan, H.
    The study was conducted to investigate the changes in yield, fat and protein ratios and micronutrient concentrations of 9 soybean (Glycine max L.) lines and 2 standard varieties in semi-arid climatic conditions during soybean production seasons in 2012 and 2013. The experiments were established in a randomized block design with three replicates and were started on 08 May and 06 May in 2012 and 2013, respectively. The plot length was 6 m and each plot had 4 rows. The interrow spacing was 70 cm and intra row spacing was 5 cm. Yield, fat and protein ratios and micronutrient concentrations in seeds of soybean varieties/lines were different in two growing seasons. Average temperature during the first growing season was higher than in the second season. The difference in temperature significantly affected the yield, fat and protein ratios and micronutrient concentrations in seeds. The Ca, Cu, Fe, K, Mg, Na P and Zn concentrations of soybean seeds in the first year were higher than those obtained in the second year. The differences in nutrient concentrations between years indicated the effects of temperature differences on mineral compositions of seeds in addition to the yield, fat and protein ratios.