Browsing by Author "Sonmez, F."

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Adaptation and Stability Analysis in the Selected Lines of Tir Wheat
(Pakistan Botanical Soc, 2006) Ulker, M.; Sonmez, F.; Ciftci, V.; Yilmaz, N.; Apak, R.
Genotype and environment (G x E) interactions are of major concern to plant breeders in breeding cultivars. The objective of this study was to determine the stability of grain yield in 12 wheat genotypes. Eleven lines selected from Tir wheat population (Triticum aestivum) were used in the study. The experiment was conducted in Van, Ercis, and Adilcevaz located in the eastern part of Turkey in 1997-98 and 1998-99. Two stability parameters were obtained as linear regression coefficient (b) of an entry mean on the average of all entries and deviation from regression (s(2)d), then stability was tested with the hypotheses b = 1.0 and s(2)d = 0. The results indicated that there were significant differences and interactions among genotypes, locations and years. The regression coefficient (b) values of the 11 genotypes used in this study ranged from 0.46 to 1.73; deviation from regression ranged from 69.9 to 2896.7. According to estimates of the two stability parameters, none of the genotypes were stable for grain yield. However, based on the linear regression coefficient and average grain yield, line 2 (Adilcevaz-40/1) and 11 (Van-Edremit/1) appeared to be promising because their yields were above the average in all of the environmental conditions of this study.
Effect of Nitrogen Application and Rhizobium Inoculation on Yield and Nutrient Uptake in Lucerne (Medicago Sativa)
(indian Counc Agricultural Res, 2006) Tufenkci, S.; Erman, M.; Sonmez, F.
Effects of Different Sulphur and Pyrite Levels on Yield, Yield Components and Nutrients Uptake of Lentil (Lens Culinaris)
(indian Counc Agricultural Res, 2008) Cimrin, K. M.; Togay, Y.; Togay, N.; Sonmez, F.
The Effects of Gyttja on Soil Properties in Nickel-Contaminated Soils
(Aloki Applied Ecological Research and Forensic inst Ltd, 2019) Karaca, S.; Gulser, F.; Sonmez, F.; Gokkaya, T. H.
In this study, the effects of gyttja on some soil properties in two different nickel-contaminated soils (Inceptisol and Entisol) were investigated. This study was conducted with the application of three levels of gyttja (0, 5 and 10%) in two different soils (Inceptisol and Entisol) contaminated with Ni at three levels of concentration (0, 40 and 80 mg kg(-1)) in a factorial experimental design with three replications. Some soil properties showed differences in different nickel and gyttja applications. Soil nickel content significantly (P < 0.01) increased in nickel-contaminated soils. Soil organic matter and phosphorus contents in gyttja applicated soils were found to reach higher levels compared to those without gyttja application.
Effects of Phosphorus and Nitrogen Applications and Rhizobium Inoculation on the Yield and Nutrient Uptake of Sainfoin (Onobrychis Viciifolia L.) Under Irrigated Conditions in Turkey
(Taylor & Francis Ltd, 2006) Tufenkci, S.; Erman, M.; Sonmez, F.
This study was carried out to determine the effects of phosphorus and nitrogen applications and Rhizobium inoculation on the yield and nutrient uptake in sainfoin grown in Van, Turkey, in 2002 and 2003. Nitrogen application significantly increased plant height, and fresh forage and hay yields, in both years. The highest values were obtained from the 40 kg ha(-1) N. Applications over 40 kg ha(-1) N decreased these parameters. Nitrogen at 40 kg ha(-1) also resulted in the highest nitrogen, phosphor-us, and potassium contents of the plants. The application of 39 kg P ha(-1) significantly increased plant height, and fresh forage and hay yields. Phosphorus also increased nitrogen, phosphorus, and potassium contents. Rhizobium inoculation significantly increased all the parameters investigated over the control. The highest yield and nutrient contents were obtained from the application 40 kg ha(-1) N + 39 kg P ha(-1) + Rhizobium inoculation.