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Articles by Ilknur Ayan
Total Records ( 4 ) for Ilknur Ayan
  Sebahattin Albayrak , Ozgur Tongel , Ilknur Ayan and Zeki Acar
  This three-year study (2003-2005) aimed to improve the yield and quality of pastures growing naturally that are colonized by naturally occurring vegetation without agricultural input under hazelnut (Corylus sp.) orchards in the middle and eastern Black Sea regions of Turkey. There were eight treatments: 1) control; 2) fertilizer only (triple superphosphate 44% and calcium ammonium nitrate 26%) (80kg ha-1 P and 60 kg ha-1 N in Samsun; 100 kg ha-1 P and 80 kg ha-1 N in Ordu; 100 kg ha-1 P and 40 kg ha-1 N in Giresun); 3) lime only (calcium carbonate 94%) (3.0 t ha-1 lime in Samsun; 4.5 t ha-1 lime in Ordu and Giresun); 4) early cut only; 5) soil aeration only; 6) fertilizer+lime; 7) fertilizer+lime+early cut; 8) fertilizer+lime+soil aeration, laid out in a randomized complete block design with four replicates at each location. The highest dry matter (DM) yield of kg ha-1 and crude protein content (%) was obtained from the treatments that included fertilizer. There was no difference in DM production between any of the combination treatments that involved fertilizer and the fertilizer alone treatment. Only lime and aeration applications also increased yield compared to control, but not as much as did any treatment including fertilizer. Crude protein content of the pasture ranged from 13.3 to 18.1% across locations. Nitrogen and phosphorus fertilizer are recommended to improve DM yields and herbage quality for pastures under hazelnut orchards.
  Nevzat Aydin , Zeki Mut , Hanife Mut and Ilknur Ayan
  The objective of this study was to investigate the effects of sowing on hay yield and quality of oat genotypes. Sixteen oat genotypes were grown over the consecutive four growing seasons in Samsun, North of Turkey. Hay yield and quality were significantly different between genotypes and sowing dates. Hay yield, Crude Protein (CP), Acid Detergent Fibre (ADF), Neutral Detergent Fibre (NDF), Total Digestible Nutrients (TDN), Relative Feed Value (RFV), Ca, K, P and Mg contents of hay were determined. Hay yield of the oat genotypes in the autumn sowing was higher than in the spring sowing while hay quality (CP, ADF, NDF, TDN, RFV and some elements) in the autumn sowing was lower than in the spring sowing. The hay yield of late-maturing and tall genotypes like Yesilkoy-330, Yesilkoy-1779, Faikbey and Seydisehir (12.1, 12.2, 12.4 and 12.9 t ha-1, respectively) were higher compared with the other genotypes in sowed in autumn. But quality of these genotypes in autumn sowing was lower than the other genotypes. In spring sowing, genotypes Samsun and Kupa had the highest hay yield and fairly high quality. Ca, K and P contents of hay were adequate for ruminants in both sowing dates but Mg content was not adequate. This study showed that sowing date had great effect on hay yield and quality potential of oat genotypes.
  Ilknur Ayan , Hanife Mut , Ozlem Onal-Asci , Ugur Basaran and Zeki Acar
  This study was conducted on a secondary succession rangeland at the Samsun region in Turkey. The area which was plowed about 30 years ago and then abandoned. In the study was used sheep manure. Target rates of sheep manure was 0, 25.0, 50.0, 75.0 and 100 kg total N ha-1 based on the manure analyses results (according to N rates in manure). Ca, P, K, Mg content of rangeland hay ranged from 7.54-10.64 g kg-1, from 3.08-3.37 g kg-1 from 25.66-36.07 g kg-1, from 2.11-2.57 g kg-1, respectively over 3 years. ADF content of rangeland hay ranged from 376.2-397.3 g kg-1 in 2006, from 391.9-410.5 g kg-1 in 2007, from 361.0-385.0 g kg-1 in over the 3 years. NDF content was determined between 547.5 (in 37.5+37.5 kg N ha-1 treatment) and 619.9 g kg-1 (25.0 kg N ha-1 treatments) in the mean of 3 years. The effect of manure on rangeland hay quality and chemical properties generally affected positive as application rates increased.
  Mustafa Ozgur Tongel and Ilknur Ayan
  Lucerne is an invaluable forage crop for Turkish farmers as it produces high quality feed during summer on lowland fields. But cultivar selection is always vague in particular regions concerning quality criteria such as protein and mineral contents which are extremely important to prevent certain diseases caused by essential element shortage. So, this study was conducted in experimental field of Black Sea Agricultural Research Institute in order to determine suitable Lucerne (Medicago sativa L.) cultivars for coastal conditions of Black Sea Region between 2002 and 2004. Plant height, main stem diameter, branch number of main stem, green forage yield, hay yield, crude protein contents and yield, crude ash content and yield, mineral matter were investigated in the research. The cultivar Planet, among the 19 cultivars, had the highest dry matter yield with 14.6 ton ha-1; however, the cultivar Granada statistically had the lowest dry matter yield (7.7 ton ha-1) in 2003. Same cultivar, Granada, did not change its place in 2004. It yielded in 18.7 ton ha-1 in both years. The cultivar eagle had the highest yield concerning total dry matter yield in 2003 and 2004. As a result; Granada and Bilensoy-80 cultivars were not suitable in Samsun coastal conditions and Eagle, Prista, Derby, Planet, Zajecharska-83, Calyon, MA 414, Gea, MA 324, Miral 5683, Kalender, Calfa, Artal 5588 cultivars showed better performance than the other cultivars.
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