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Öğe Evaluation of Turkish oat landraces based on grain yield, yield components and some quality traits(2011) Dumlupınar, Ziya; Maral, Hasan; Kara, Rukiye; Dokuyucu, Tevrican; Akkaya, AydınIn this study, 196 Turkish oat landraces and three standard cultivars (Checota, Faikbey and Seydişehir) were evaluated for grain yield, yield components and some quality traits for two years. Based on two years experiment data, all investigated traits were significantly different for years, except panicle length and protein ratio. Genotypes varied for grain number per panicle, grain weight per panicle, panicle length, 1000-grain weight, grain yield, groat percentage and protein ratio. However, year x genotype interaction was only important for grain yield, groat percentage and protein ratio. According to the investigated traits, grain yield, grain weight per panicle and 1000-grain weight traits were more promising than grain number per panicle, panicle length, groat percentage, protein ratio, tiller number per plant and panicle number per m2. These results indicate that, E35, E39, E21, E34, E13, A16, E17, E37, E26, A27, A9, A10, E20, A79, E19, E56 A59, K13, K43, A19, E47, K7, K4, K3 and A7 were some of the genotypes with higher grain yield, 1000-grain weight and grain weight per panicle.Öğe Evaluation of Turkish oat landraces based on morphological and phenological traits(Lithuanian Research Centre Agriculture & Forestry, 2012) Dumlupınar, Ziya; Dokuyucu, Tevrican; Maral, Hasan; Kara, Rukiye; Akkaya, AydınIn a two-year study, 196 Turkish oat landraces and 3 standard cultivars ('Checota', 'Faikbey' and 'Seydisehir') were evaluated for morphological traits: germination rate, stem diameter, upper inter-node length, plant height, flag leaf width, flag leaf length, single plant biomass, lodging severity and barley yellow dwarf virus, and for phenological traits: vegetative period, grain filling period and, days to maturity. According to two years' data, all traits differed for years except germination rate. Genotypes varied for upper inter-node length, stem diameter, plant height, flag leaf width, vegetative period, grain filling period and days to maturity. In addition, year x genotype interaction was significant for stem diameter, flag leaf width, vegetative period, grain filling period and days to maturity. Traits such as flag leaf length, flag leaf width, days to maturity, vegetative period, single plant biomass and germination rate were more promising ones as selection criteria. However, lodging severity, plant height, barley yellow dwarf virus, upper inter-node length and grain filling period were more important for negative selection. Results indicate that, El A56, E7, E55, A17, E38, A40, A63, A25, A69, A26, A83, A1, A2, K11. K9, K3, K53, K30, K1 K2, K7, K5, K8, K48 and K4 were some of the genotypes in the right quadrants of the biplot with vegetative period, days to maturity, flag leaf width, flag leaf length, germination rate, single plant biomass and stem diameter traits.Öğe İmpact Of Genotype And Nitrogen Fertilizer Rate On Yield And Nitrogen Use By Oat (Avena Sativa L.) İn Turkey(Soc Field Crop Sci, 2012) Maral, Hasan; Dumlupınar, Ziya; Dokuyucu, Tevrican; Akkaya, AydınEfficient nitrogen (N) use is one of the most crucial issues for crop management in developing countries. Since Turkish agricultural practices tends to use lower inputs of N fertilizers, a field trial was carried out in 2007-08 and 2008-09 cropping years to determine response of six oat genotypes (Seydisehir, Apak, Yesilkoy-330, Amasya, Checota and Yesilkoy-1779) to three N rates (0, 100 and 200 kg ha(-1)). According to the results, differences between the years were significantly important for all investigated traits except soil nitrogen content at planting (NCP), nitrogen content at maturity (NCM) and nitrogen accumulation in grain (NAG). Genotypes significantly varied for all traits except NCP, nitrogen in grain (NG) and NAG. However, differences among N rates were significant for all traits except NCP.Among the genotypes Checota had the highest nitrogen use efficiency (NUE) and grain yield (GY) (20.6 kg kg(-1) N and 2590 kg ha(-1), respectively).Öğe Impact of genotype and nitrogen fertilizer rate on yieldand nitrogen use by oat (Avena sativa L.) in Turkey(2012) Maral, Hasan; Dumlupınar, Ziya; Dokuyucu, Tevrican; Akkaya, AydınEfficient nitrogen (N) use is one of the most crucial issues for crop management in developing countries. Since Turkish agricultural practices tends to use lower inputs of N fertilizers, a field trial was carried out in 2007-08 and 2008-09 cropping years to determine response of six oat genotypes (Seydisehir, Apak, Yesilkoy-330, Amasya, Checota and Yesilkoy-1779) to three N rates (0, 100 and 200 kg ha, -1). According to the results, differences between the years were significantly important for all investigated traits except soil nitrogen content at planting (NCP), nitrogen content at maturity (NCM) and nitrogen accumulation in grain (NAG). Genotypes significantly varied for all traits except NCP, nitrogen in grain (NG) and NAG. However, differences among N rates were significant for all traits except NCP. Among the genotypes Checota had the highest nitrogen use efficiency (NUE) and grain yield (GY) (20.6 kg kg-1 N and 2590 kg ha-1, respectively).Öğe Response of six oat (avena sativa l.) Cultivars to nitrogen fertilization for agronomical traits(Soc Field Crop Sci, 2013) Maral, Hasan; Dumlupınar, Ziya; Dokuyucu, Tevrican; Akkaya, AydınNitrogen (N) is one of the most important and complex nutrients for the crop plants especially for grain yield and quality. Field trials were carried out in 2007-08 and 2008-09 growing years to investigate response of six oat cultivars (Seydisehir, Apak, Yesilkoy-330, Amasya, Checota and Yesilkoy-1779) to three N rates (0, 10 and 20 kg da(-1)) for agronomical traits. In the research the traits such as panicle number per m(-2) (PN m(-2)), plant height (PH), grain number per panicle (GNP), grain weight per panicle (GWP), 1000-grain weight (1000-GW), grain yield (GY), biomass (BY) and harvest index (HI) were investigated. Results indicate that agronomical traits significantly differed for the years, cultivars and N rates, except PH for cultivars. Among the cultivars, Checota had the highest GWP, 1000-GW and GY (3.12 g, 38.5 g and 259.6 kg da(-1) respectively), while Seydisehir had the highest PN m(-2) and BY (543 PN m(-2) and 1666 kg da(-1) respectively). Investigated traits were gradually increased with increasing of nitrogen rates. Checota cultivar had the highest GY, while Seydisehir cv. had the highest BY at 20 kg da(-1) N rate.
