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Öğe Effect of Autumn and Spring Sowing Dates on Hay Yield and Quality of Oat (Avena sativa L.) Genotypes(Medwell Journals, 2010) Aydın, Nevzat; Mut, Zeki; Mut, Hanife; Ayan, İlknurThe objective of this study was to investigate the effects of sowing dates 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 latematuring and tall genotypes like Yesilkoy-330, Yesilkoy-1779, Faikbey and Seydisehir (12.1, 12.2, 12.4 and 12.9 t haG 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.Öğe Effect of autunm and spring sowing dates on hay yield and quality of oat (avena sativa l.) genotypes(Medwell Online, 2010) Aydın, Nevzat; Mut, Zeki; Mut, Hanife; Ayan, İlknurThe 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.Öğe Effects of seed size and drought stress on germination and seedling growth of some oat genotypes (Avena sativa L.)(Academic Journals, 2010) Mut, Zeki; Akay, Hasan; Aydın, NevzatEffects of seed size and osmotic stress on germination and seedling growth of fifty-five oat genotypes obtained from Europe, North and South America, Asia and Oceania were investigated. Small, medium and large seeds of fifty-five oat genotypes were germinated in polyethylene glycol (PEG 6000) solutions with initial osmotic potentials ranging from 0 to -0.75 MPa at 8 degrees C. In this study, final germination percentage (FGP), median germination time (MGT), root length, and shoot length were measured and calculated. In all genotypes examined, decreasing seed size and osmotic potential increased median germination time and decreased final germination percentage, root and shoot length. Among genotypes, the highest final germination percentage was obtained with 88.6% from the cv. Evita. The cv. Flamingsplus, Pajaz, Iltis, Lvovskii Rannii, Marta, Auteuil and Samsun (local population) followed with final germination rates of 83.5, 83.4, 83.3, 82.7, 82.1, 82.0, and 80.8%, respectively. Among these genotypes, Pajaz and Lvovskii Rannii also had the fastest median germination time, however, the highest root and shoot length was measured the cv. Centennial. In addition, this genotype also had higher final germination percentage and lower median germination time.Öğe Ekmeklik buğdayda geliştirilen rekombinant kendilenmiş hat popülasyonunda kalite özellikleri için fenotipik ve genotipik değişim(2021) Aydın, Nevzat; Demir, Bedrettin; Güleç, Tuğba; Sermet, Cemal; Bayramoğlu, Hasan Orhan; Sayaslan, Abdulvahit; Mut, ZekiRekombinant kendilenmiş hat populasyonları tarımsal araştırmalarda kullanılan önemli haritalama populasyonlarıdır. Çalışmada, Tosunbey ve Tahirova-2000 çeşitleri melezlenerek 420 ve 362 adet hat bulunan resiprokal rekombinant kendilenmiş hat populasyonu geliştirilmiştir. Populasyonların geliştirilmesinde tek tohum soy yöntemi kullanılmıştır. F7 generasyondaki homozigot hatlar, Samsun lokasyonunda Agumented deneme desenine göre 6 m2 alanındaki parsellerde yetiştirilmiştir. Hatların Yüksek ve Düşük Molekül Ağırlıklı Glutenin Alt Üniteleri (YMA-GA ve DMA-GA) ile çavdar translokasyonu varlığı SDS-PAGE yöntemiyle belirlenmiştir. Tosunbey çeşidi YMA-GA için 1, 17+18, 5+10 alt ünitelerini ve DMA-GA için GluA3b, GluB3b ve GluD3b allellerini taşırken, Tahirova-2000 çeşidi YMA-GA için 2*, 7+9, 5+10 alt ünitelerini ve DMA-GA için GluA3e, GluB3j ve GluD3b allellerini ve 1BL.1RS çavdar translokasyonu taşımaktadır. Denemede tane verimi, bitki boyu, başaklanma gün süresi gibi agronomik özellikler yanında protein içeriği, SDS sedimentasyon değeri, hektolitre ağırlığı, bin tane ağırlığı, kül oranı ve L renk değeri saptanmıştır. Tosunbey × Tahirova-2000ve Tahirova-2000 × Tosunbey populasyonlarında denemelerin ortalama tane verimi sırasıyla 399.5 kgda-1 ve 328.9 kgda-1’dır. Populasyonlarda bitki boyu ve başaklanma süresi için önemli seviyede transgresif açılım gözlenmiştir. Üçyüzyirmidört hattın çavdar translokasyonu (1BL.1RS) taşıdığı ve çavdar translokasyonunun protein kalitesine etkisinin olumsuz olduğu saptanmıştır. GluA3b alleli taşıyan hatların SDS sedimentasyon değeri, GluA3e alleli taşıyanlara kıyasla daha yüksektir. Araştırma sonuçları populasyonların ekmeklik buğdayda kalite ve kuraklık çalışmalarında kullanılabilecek elit materyale sahip olduğunu göstermiştir.Öğe Estimation of broad-sense heritability for grain yield and some agronomic and quality traits of bread wheat (Triticum aestivum L.)(WFL Publisher Science and Technology, 2010) Aydın, Nevzat; Mut, Zeki; Özcan, HasanTwenty-five wheat genotypes (Triticum aestivum L.) were grown at three locations (Samsun, Amasya and Tokat) in the Middle Black Sea Region of Turkey in order to estimate the broad-sense heritability for grain yield and some agronomic and quality traits. Estimation of the heritability will help to identify selection parameters in our breeding programs for target environments. The heritability for grain yield, test weight, 1000-kernel weight, Zeleny sedimentation, protein content and plant height were 46.05%, 86.88%, 81.82%, 89.13%, 87.45% and 43.69%, respectively. It was found that Zeleny sedimentation was the least affected trait over environments and followed protein content, test weight and 1000-kernel weight. On the other hand, grain yield and plant height were the most affected traits across environmental conditions.Öğe Hızlı ıslah teknolojisi ve markör destekli geriye melez yöntemiyle hasat öncesi başakta çimlenmeye toleranslı ekmeklik buğday genotiplerinin geliştirilmesi(Çanakkale Onsekiz Mart Üniversitesi, 2021) Yayla, Elif; Güleç, Tuğba; Sönmez, Mesut Ersin; Demir, Bedrettin; Mut, Zeki; Aydın, NevzatHasat dönemindeki yağışlar buğdayda hasat öncesi başakta çimlenmeye neden olabilmektedir. Buğday kalitesini ve pazar değerini olumsuz yönde etkileyen hasat öncesi başakta çimlenme için alınabilecek önlemlerin başında dormant çeşitlerin geliştirilmesi gelmektedir. Çalışmada, Nevzatbey, Adana-99 ve Tosunbey x Tahirova-2000 melezi sonucu elde edilen 127 kodlu buğday genotipleri ve genitör olarak Rio Blanco buğday çeşidi kullanılmıştır. Genotiplerin tamamı beyaz tanelidir. Bitkiler, hızlı ıslah teknolojisi kullanılarak yetiştirilmiş ve ıslah yöntemi olarak markör destekli geriye melez yöntemi kullanılmıştır. Bitkiler günde 21 saat LED ışık altında ve 25 °C’de ışıklı periyotta, 3 saat karanlık ve 18 °C’de yetiştirilmiştir. Generasyon süresi vernalizasyon süresi hariç 53-80 gün arasında değişmiştir. Bütün melez kombinasyonlarda toplam 90 adet bitki yetiştirilmiştir. GM F generasyonundaki tohumlardan 54 tanesi hedef geni heterozigot olarak taşımaktadır. Bu tohumlar GM₁F₂ generasyonunun bitkilerini üretmek için kullanılmıştır. GM₁F₂ generasyonundaki 27 adet genotipin hedef geni homozigot olarak taşıdığı moleküler olarak saptanmıştır. Hızlı ıslah teknolojisi buğdayda generasyon süresini kısaltabilir ve geriye melez hatlar hasat öncesi başakta çimlenmeye toleranslı beyaz taneli çeşitlerin geliştirilmesinde kullanılabilir.Öğe Path analyses of yield and some agronomic and quality traits of bread wheat (Triticum aestivum L.) under different environments(Academic Journals, 2010) Aydın, Nevzat; Sermet, Cemal; Mut, Zeki; Bayramoğlu, H. Orhan; Özcan, HasanThis research was conducted to determine characters effecting grain yield in fifty bread wheat (Triticum aestivum L.) cultivars and advanced lines by using simple correlation coefficient and path analysis under 2 locations (high rainfall and low rainfall; 745 and 506 mm, respectively). A total of 50 genotypes, 25 for each independent experiment, were tested for grain yield, test weight, 1000-kernel weight, Zeleny sedimentation, protein content and plant height. Grain yield was significantly correlated with plant height in high rainfall condition. It was significantly correlated with all components except Zeleny sedimentation and protein content in low rainfall condition. Results suggest that plant height and test weight are primary selection criteria for improving grain yield in bread wheat in high and low rainfall conditions.Öğe Yield stability and agronomic performance of bread wheat (Triticum aestivum L.) genotypes in the Central Black Sea Region in Turkey(WFL Publisher Science and Technology, 2011) Aydın, Nevzat; Şermet, Cemal; Mut, Zeki; Bayramoğlu, Hasan Orhan; Özcan, Hasan; Öz, AhmetGrain yield and yield stability of genotypes are of great importance in wheat genetics and breeding programs. Yield stability can be used to select promising and stable wheat genotypes across environments. It can also represent good adaptation ability of high-yielding genotypes across environments. This study was conducted in 7 environments in the Central Black Sea Region in 2008-2009 and 2009-2010 growing seasons. Twenty-three bread wheat cultivars and advanced lines were tested in a randomized complete block design with 4 replications. Data were recorded for grain yield, plant height, hectolitre weight, thousand kernel weight and SDS (sodium dodecyl sulphate) sedimentation volume. Parametric and nonparametric methods were used to determine the stable genotypes for grain yield. Mean grain yields of genotypes ranged from 5742 to 3262 kg ha-1. The highest mean values for thousand kernel weight, hectolitre weight and SDS sedimentation were obtained from Samsun/Bafra location in 2008-2009 with 46.4 g, Samsun/Bafra location in 2008-2009 with 81.2 kg, and Samsun/Karakoy location with 38.2 ml, respectively. While the genotypes G11 and G22 were most stable by all stability parameters except for the TOP statistic, the genotype G6 was the most stable by all stability parameters except for ASV statistic. The genotypes G6, G11 and G22 will be tested for release procedure and the genotypes with good yield potential and acceptable end-use quality will be used as elite genetic material for future breeding activities in the Central Black Sea Region.
