Biotech Studies 2019, Vol 28, Num, 2     (Pages: 080-091)

Investigation of Yield and Quality Characteristics and Economic Returns of Some Bread Wheat (Triticum aestivum L.) Cultivars Grown in Lean and Mixed Sizes


1 Harran Üniversitesi, Ziraat Fakültesi, Tarla Bitkileri Bölümü, Şanlıurfa, Türkiye DOI : 10.21566/tarbitderg.660237 - The study aimed to investigate the effect of both single cultivation of bread wheat cultivars and their mixture on yield and quality stability, profitability as well. Field trials was carried out in the experimental field of GAPTEAM Talat Demirören experimental station in Şanlıurfa in 2017-2018 growing season. Nine individual and ten mixtures consisting of 19 entries were tested employing randomized complete block design with 4 replications. Some agronomical traits were evaluated through analysis of variance, correlation and regression. The result revealed that mixtures had higher grain yield mean (541.50 kg/da) than that of single varieties (494.16 kg/da). However, CV Dariel placed in the first rank with a 668.75 kg/da and the mixture 6 were in the second rank with 622.75 kg/da. The yield and quality parameters of single varieties are fluctuated. Mixtures generally gave the average ranks and were found relatively stable. There were no statistically significant differences between the mean of many traits in both cultivations. The mixtures gave higher mean for marketing price (1.218 TL) than that of single varieties (1.162 TL). The variety of CV Dariel placed in the first rank with 1,288 TL/kg.

The revenue from mixtures (651, 82 TL/da) was higher than that of single varieties (582, 49 TL/da). But, the highest revenue was provided from single variety of CV Dariel with an amount of 861, 16 TL/da. Mixture 6th (45% Ceyhan 99 + 45% Dariel + 5% Sagitario + 5% İthal) placed in the second rank with an amount of 758, 07 TL/da. Statistic significance were recorded among the revenue, per da and marketing price. The coefficients of determinations (R2%) were found to be very low and not reliable between grain yield (per da) and yield components, between marketing price and quality traits, income and all characteristics. The result of regression analysis showed that higher yielding varieties generated higher income with high coefficient of determination (R2%= 92,5). Mixture of K6 gave a better yield, quality and a reasonable income per da that can compete with single varieties and can be recommended to the farmers. Keywords : Bread wheat, field mixtures, agronomical and quality characteristics, profitability