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Articles by H.J. Braun
Total Records ( 1 ) for H.J. Braun
  I. Ozberk , A. Atli , F. Ozberk and H.J. Braun
  This study aimed to investigate the effects of some grading factors on marketing prices in durum wheat. The study was carried out in S.Urfa commodity market during the summer of 2004. A randomized complete block design with three factors and four replications (grain buyers) was employed. Factor A’, three widely grown durum wheat varieties (Urfa-2005, Firat-93 and Aydin-93) , Factor B, the five various grading factors [yellow berry (YB), red bread wheat content (RBW), dark red bread wheat content (DRBW), sunn pest damaged kernel content (SP) and combinations of all above factors ( combined effect)] and Factor C, content ratios (2.5, 5.0, 7.5 and 10%) were utilized. The results, obtained from variance analysis, indicated that all sources of variation turned out to be statistically significant. The grain buyers had different purchasing criteria depending on their needs. Some durum wheat varieties were offered higher prices due to good semolina or bulgur color reputation in macaroni and bulgur industry. Grading factors under study had different effects on marketing price of durum wheat. Marketing price reduced as content ratios of all grading factors in durum wheat increased. It was found that combined effect could reduce the marketing price as much as $ 41 ton-1, SP damage; $ 36 ton-1, DRBW; $ 23 ton-1, RBW; $ 13 ton-1 and YB; $ 9 ton-1. The regressions between marketing prices vs. all grading factors were found to be statistically significant and the regression equations with high coefficients of determination (R2%) described the variations in marketing price and can be used for marketing price estimations adequately. It was concluded that durum wheat purchasing criteria in the South East of Anatolia was somewhat different from those of Turkish Grain Board and some international markets. Some of down grading factors such as sunn pest damage and the presence of dark red or red bread wheat kernels must be added into national standards of Turkey and similar Middle East countries. Growing of bread wheat varieties with dark red or red kernels should be limited to avoid marketing price reductions in Middle East countries in which bulgur is common food.
 
 
 
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