Browsing by Author "Dogan, Y."

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Effect of Different Sowing Time on Yield and Yield Components of Lentil (Lens Culinaris Medic.) Varieties in Mardin Kiziltepe Conditions
(Univ Namik Kemal, 2014) Dogan, Y.; Togay, Y.; Togay, N.
The aim of this work is to determine the most suitable sowing date for lentil in Mardin Kiziltepe conditions. Three cultivars of lentil (Firat-87, Sakar andYerli Kirmizi) were sown at three different sowing dates (November 10, 25 and 10 December). The trial was conducted in the experimental fields of Kiziltepe Vocational High School of Mardin Artuklu University by using split plots in randomized factorial blocks design with the three replicates in years of 2011-12 and 2012-13. Experiment was established as main plots and sowing times treatments as split plots. Effects of sowing dates on plant height, first pod height, numbers of pod per plant and numbers of seed per plant, numbers of seed per pod, 1000 grain weight, grain yield, harvest index and biological yield were investigated for three cultivars. According to the two years results; effects of varieties and sowing time on the yield and yield components of lentil were obtained significantly. While the highest grain yield per area was obtained at the Sakar cultivar as 237.48kg/da and 210.34 kg/da, the lowest grain yield per area was obtained at the Yerli Kirmizi cultivar as 164.07 kg/da and 148.22 kg/da in years of 2011-12 and 2012-13 respectively. The most suitable sowing time was determined with November 25 in Mardin conditions.
Effect of Humic Acid and Phosphorus Applications on the Yield and Yield Components in Lentil (Lens Culinaris Medic.)
(Agricultural Research Communication Centre, 2014) Dogan, Y.; Togay, Y.; Togay, N.; Kulaz, H.
Lentil is commonly grown as a rotation crop in east and southeast of Turkey. It is an important crop because of its high protein content of seed and straw for human and animal nutrition. Phosphorus in the soil has developmental activity in the plant's root growth. The effects of humic substances on plant growth, under conditions of adequate mineral nutrition, consistently show positive effects on plant biomass. An experiment was conducted to study the effect of different levels of humic acid and phosphorous on yield and yield attributes of lentil during 2008-09 and 2009-10 in Agricultural Faculty experiment field of Yuzuncu Yil University. The results of the study indicated that humic acid and phosphorus applications increased significantly the seed yield and yield components. Whereas the highest seed yield were obtained from 80 kg phosphorus ha(-1) with 1135 kg ha(-1) and 600 kg humic acid ha(-1) application with 1097 kg ha(-1) in the first year, the values were 80 kg phosphorus ha(-1) with 1756 kg ha(-l)and 600 kg humic acid ha ha(-1) application with 1625 kg ha(-1) in the second year.
Investigating the Quality of Durum Wheat Landraces and Determination of Parents To Use in Breeding Programs
(Corvinus Univ Budapest, 2019) Kendal, E.; Eren, A.; Dogan, Y.; Oral, E.; Koyuncu, M.
The study was conducted to evaluate the quality of durum wheat grain. For this reason, genetic resources are crucial for the identification of parents and the enrichment of the gene pool that can be used in the development of new varieties for better nutrition of people. For this purpose, 131 populations of landraces, 9 promising line and 5 new varieties were used. The experiment was set up in randomized blocks with 7 replications, according to the augmented (increased) experimental design in 2015-2016 growing season. In the study, we examined total nitrogen content, protein ratio, CIE (Commission Internationale Eclairage) wheat color analysis (L* brightness, b* jaundice, a* redness) of 145 genotypes of durum wheat seeds. According to analysis of variance, highly significant differences (P < 0.05 or P < 0.01) were determined for total nitrogen, protein content and CIE L* value, while differences were not significant for b* value and a* value. The superiority of the genotypes was determined by the first two principal components (IPC1 (principle component) and IPC2) in order to create a two-dimensional GT biplot. The sum squares of the first two components were accounted by 45.34% (PC1) and 40.03% (PC2) for genotypes. The GT (genotype x trait) biplot indicated that 9 (nine) sectors occurred among genotypes and quality parameters. On the other hand, three groups occurred among the quality parameters based on the genotypes. The scatter plot demonstrated that there is a high correlation between b* jaundice, and a* redness. The results showed that cultivars and more landraces have general adaptability for all quality parameters, while some genotypes (G79, G78), (G22, G102), (G3) and (G121, G5) showed specific adaptation for N (nitrogen), PC (protein content) and L*, a* and b* values, respectively. According to the biplot techniques, G36 came forward with the N, P and a* value and desirable landraces, G5 for b* value, G30 stable line for all quality parameters, while (G128, G61) and the majority of promising lines (L4, L6) did not come forward with any quality parameters. The results of the study indicated that the majority of landraces can be used as parents to improve the quality of durum wheat varieties. The study indicated that GT biplot can be used to evaluate the genotypes graphically to select the best genotypes for parents to use in breeding programs.
Nutrient Status and Yield of Chickpea (Cicer Arietinum L.) as Influence by Application of Different Harvest Timing and Sulphur Fertiliser
(Scibulcom Ltd, 2015) Dogan, Y.; Togay, N.; Togay, Y.
The objectives of this research were to study the effect of harvesting time and sulphur levels on the yield, protein and mineral nutritional value of chickpea seeds. Three different harvesting times (early, on-time and late) and four sulphur levels (0, 20, 40 and 60 kg ha(-1)) were used. Yield, protein ratio and mineral nutritional value of chickpea were significantly affected by sulphur and harvest timing. The highest grain yields according to the harvest time were obtained from on-time harvest with 1527 and 1434 kg ha-1 for the first and second years, respectively. The lowest grain yields were obtained from the control plots, whereas the highest values were obtained from the plots given 60 kg he sulphur. Generally, protein, phosphorus, calcium, magnesium, copper, zinc, and manganese concentrations of the seeds in on-time harvest and 60 kg ha(-1) sulphur aplication were found to be greater than in early and late harvested plants. Positive significant relationships were found between harvest time and protein (r = 0.64**), Fe (r = 0.75**) and Zn (r = 0.27*). Positive significant relationships were found between sulphur doses and grain yield (r = 0.44*), protein (r = 0.26*), P (r = 0.71**), K (r = 0.73**), Ca (r = 0.36**), Mg (r = 0.76*), Zn (r = 0.57) and S (r = 0.96*).
Obstructive Sleep Apnea Syndrome in Turkish Adults
(Elsevier Ireland Ltd, 2007) Hergenc, G.; Onat, A.; Uyarel, H.; Yazici, M.; Tuncer, M.; Dogan, Y.; Rasche, K.
Performance of Dry Bean (Phaseolus Vulgaris) as Influenced by Phosphorus and Sulphur Fertilization
(indian Counc Agricultural Res, 2008) Togay, Y.; Togay, N.; Erman, M.; Dogan, Y.
An experiment was carried out during 2004 - 05 to study the effect of different doses of phosphorus (10, 40 and 80 kg/ha) and sulphur application (0, 40, 80 and 120 kg/ha) on yield and quality of dry bean (Phaseolus vulgaris L.). The trial was conducted in factorial randomized complete block design with 3 replications. The highest grain yield was recorded with 80 kg/ha P and 120 kg/ha S applications, being 1.530 tonnes/ha in the 2004 and 1.606 tonnes/ha in 2005. The highest phosphorus content (0.29 % in 2004 and 0.30 % in 2005) in grain was observed when 80 kg/ha P and 120 kg/ ha S were applied.
Potential Benefits of Intercropping Corn With Runner Bean for Small-Sized Farming System
(Asian-australasian Assoc Animal Production Soc, 2009) Bildirici, N.; Aldemir, R.; Karsli, M. A.; Dogan, Y.
The objectives of this study were to evaluate potential benefits of intercropping of corn with runner bean for a small-sized farming system.. based on land equivalent ratio (LER) and silage yield and quality of corn intercropped with runner bean (Phaseolus vulgaris L.), in and conditions of Turkey under an irrigation system. This experiment was established as a split-plot design in a randomized complete block, with three replications and carried out over two (consecutive) years in 2006 and 2007. Seven different mixtures (runner bean, B and silage corn sole crop, C., 10% B+90% C, 20% B+80% C, 30% B+70% C, 40% B+60%C, and 50% B+50%C) of silage corn-runner bean were intercropped. All of the mixtures were grown under irrigation. The corn-runner bean fields were planted in the second week of May and harvested in the first week of September in both years. Green beans were harvested three times each year and green bean yields were recorded each time. After the 3rd harvest of green bean, residues of bean and corn together were randomly harvested from a 1 m(2) area by hand using a clipper when the bean started to dry and corn was at the dough stage. Green mass yields of each plot were recorded. Silages were prepared from each plot (triplicate) in 1 L mini-silos. After 60 d ensiling, sub-samples were taken from this material for determination of dry matter (DM), pH. organic acids, chemical composition, and in vitro DM digestibility of silages. The LER index was also calculated to evaluate intercrop efficiencies with respect to sole crops. Average pH, acetic, propionic and butyric acid concentrations were similar but lactic acid and ammonia-N levels were significantly different (p<0.05) among different mixtures of bean intercropped with corn. Ammonia-N levels linearly increased from 0.90% to 2.218 as the percentage of bean increased in the mixtures up to a 50:50 seeding ratio. While average CP content increased linearly from 6.47 to 12.45%, and average NDF and ADF contents decreased linearly from 56.17 to 44.88 and from 34.92 to 33.51%. respectively, (p<0.05) as the percentage of bean increased in the mixtures up to a 50:50 seeding ratio, but DM and OM contents did not differ among different mixtures of bean intercropped with corn (p>0.05). In vitro OM digestibility values differed significantly among bean-corn mixture silages (p<0.05). Fresh bean. herbage DM, IVOMD, ME yields, and LER index were significantly influenced by percentage of bean in the mixtures (p<0.01). As the percentage of bean increased in the mixtures up to a 50:50 seeding ratio, yields of fresh bean (from 0 to 24,380 kg/ha) and CP (from 1,258.0 to 1,563.0 kg/ha) and LER values (from 1.0 to 1.775) linearly increased, but yields of herbage DM (from 19,670 to 12,550 kg/ha), IVOMD (from 12.790 to 8.020 kg/ha) and ME (46,230 to 29,000 Mcal/ha) yields decreased (p<0.05). In conclusion, all of the bean-corn mixtures provided a good silage and better CP concentrations. Even though forage yields decreased, the LER index linearly increased as the percentage of bean increased in the mixture up to a 50:50 seeding ratio, which indicates a greater utilization of land. Therefore. a 50:50 seeding ratio seemed to be best for optimal utilization of land in this study and to provide greater financial stability for labor-intensive, small farmers.