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    Determination of Forage Yield Performance of Some Promising Narbon Vetch (Vicia narbonensis L.) Lines under Rainfed Conditions in Southeastern Turkey
    (Ankara Univ, Fac Agr, 2014) Sayar, Mehmet Salih; Han, Yavuz
    This study was conducted to determine fresh forage yield, dry matter yield, and their affecting components in promising narbon vetch lines (Vicia narbonensis L.) under rainfed conditions in the Southeastern Anatolia region of Turkey. Field trials were performed in the research areas of GAP International Agricultural Research and Training Center (GAP IARTC) in Diyarbakir, Turkey during the 2008-09, 2009-10 and 2010-11 growing seasons with winter sowings. Experiments were established according to randomized blocks design with three replications. Although the genotype x year interaction for the natural plant height trait was not found to be significant, the interaction was statistically significant (P < 0.05) for the main stem number trait. For the other five traits, including fresh forage and dry matter yields, the genotype x year interaction was highly statistically significant (P < 0.01). Among growing seasons and genotypes the investigated traits had ranges as follows: fresh forage yield -19.42-37.95 t ha(-1); dry matter yield -4.07-7.16 t ha(-1); days to 50% flowering -142.3-171.0 days; natural plant height -63.8-79.3 cm; main stem height -79.3-133.3 cm; main stem numbers per plant -1.93-3.40 stems plant-1; and main stem thickness -33.2-4.97 mm. Correlation analyses indicated that there were highly significant and positive correlation between fresh forage yield and dry matter yield, though the correlation between fresh forage yield and days to 50% flowering were found as statistically significant and positive (P < 0.05). According to averages over the three study years five promising narbon vetch lines: IFVN 564-Sel 2379, IFVN 565-Sel 2380, IFVN 567-Sel 2382, IFVN 116-Sel 2461, IFVN 562-Sel 2470, were all found more productive than the control cultivar, Tarman-2002, in terms of both fresh forage yield and dry matter yield.
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    Determination of seed yield and yield components of grasspea (Lathyrus sativus L.) lines and evaluations using GGE biplot analysis method
    (Ankara University, 2015) Sayar, Mehmet Salih; Han, Yavuz
    This study was conducted to determine seed yield and its affecting components in grasspea lines (Lathyrus sativus L.), supplied from ICARDA (International Center for Agricultural Research for Dry Areas, Aleppo, Syria), in ecological conditions of Diyarbakır, in Southeastern Turkey, with winter sowings, during three consecutive years, 2008-09, 2009-10 and 2010-11. The field trials were performed according to randomized blocks design with three replications. According to the averages of the combined three years; the investigated traits had ranges as follows: Days to physiological seed maturity – 208.6-211.7 days; the number of pods per plant – 20.0-34.0 pod plant?1; the number of seeds per pod – 3.08- 3.72 seed pod?1; seed yield – 188.3-309.2 kg da?1; biological yield – 528.2- 847.1 kg da?1; straw yield – 318.3-551.5 kg da?1; harvest index – 32.0%-42.8% and 1000 seed weight – 89.3-136.5 g. According to results of GGE Biplot analysis; while 2008-09 and 2009-10 growing seasons were found near to each other, 2010-11 growing season was found different the two growing seasons considering all of the investigated traits. Additionally; the investigated eight traits made up three groups, and seed yield, biological yield, straw yield, 1000 seed weight and days to physiological seed maturity traits took part in the first group. Sel 706 (6), Sel 681 (4), Sel 2999 (12) and Sel 666 (1) lines were found as promising lines respectively in terms of the first group traits.
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    The effect of seasonal variation on macromineral contents of sainfoin genotypes and assessments with biplot analysis
    (Mattioli 1885, 2023) Sayar, Mehmet Salih; Han, Yavuz
    Background and aim: The use of quality forages in animal nutrition makes great contribution to increase in animal products both in quantity and quality. Macromineral content is an important factor affecting the quality of forages, and the contents in forages can vary due to many factors. Seasonal variation is one of the among the factors, and the study was held to reveal the effect of spring and autumn seasons cuttings on macromineral contents of sainfoin (Onobrychis viciifolia Scop.) which is one of the important and mostly cultivated perennial legume forage species in Turkey. Methods: For this reason; a field experiment was conducted according to randomized blocks design with three replications in the research area of GAP International Agricultural Research and Training Center (GAP IARTC) Diyarbakir, Turkey. Results: The study results showed that there were highly significant differences (P<0.01) between the forage harvesting seasons in terms all of the examined traits, and calcium (Ca), potassium (K), magnesium (Mg) and phosphorus (P) contents forages of sainfoin genotypes in autumn season were found lower than those of in the spring season cutting. Furthermore, the following ranges determined in the examined traits; Ca content 10.22–12.46 g kg-1 DM, K content 25.41– 37.16 g kg-1 DM, Mg content 1.00–1.61 g kg-1 DM, P content 1.99–3.22 DM g kg-1 DM, Ca/P ratio 3.59–5.79 and K/(Ca+Mg) (tetany) ratio 1.98–2.86. On the other hand, both biplot and correlation analysis showed that there was highly significant and positive relationship among Ca, Mg contents, Ca/P ratio traits. However, there was negative relationship between the three traits and P content, K/(Ca+Mg) (tetany) ratio traits. In addition, there was highly significant (P<0.01) but negative relationship between P content and K content traits in sainfoin genotypes. Conclusions: By taking into to all of the examined traits together, biplot analysis revealed that Lütfibey and Peschanjy-1251 cultivars came to fore in spring season cutting, while CTC Population and Ozerbey-03 cultivars came to fore in autumn season cutting. Also, sainfoin forage obtained in spring season cutting was found richer in terms of Ca, Mg, P and K contents, but due to higher K/(Ca+Mg) (tetany) ratio of the spring season, animal feed with the spring season sainfoin forage may be more susceptible to catching grass tetany incidence especially for dairy cows. To avoid risk of the incidence, the feeds having more Mg content and lower K content should be taken place in the animal rations.
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    Forage yield and forage quality traits of sainfoin (Onobrychis viciifolia SCOP.) genotypes and evaluation with biplot analysis
    (Parlar Scientific Publications, 2022) Sayar, Mehmet Salih; Han, Yavuz; Başbağ, Mehmet
    The study was conducted to determine forage yield and forage quality traits of some sainfoin (Onobrychis viciifolia Scop.) genotypes in ecological conditions of Southeastern Anatolian Region, Turkey. Fort this reason, a fixed field trial was carried out during three consecutive years (2009, 2010, 2011) in the research area of GAP International Agricultural Research and Training Center (GAP IARTC) Diyarbakir, Turkey. The combined variance analysis over the three years showed that there has been highly significant (P < 0.01) differences among the years and the genotypes in terms all of the investigated traits. However, the genotype x year interaction was found statistically significant (P < 0.01) only for fresh forage and dry matter yield traits. Additionally, the three-year averages, the investigated traits were ranged in the following intervals among the genotypes; Fresh forage yield (FFY): 18.09-37.70 t ha(-1), Dry matter yield (DMY): 4.74-9.63 t ha(-1), Acid detergent fiber (ADF): 29.49%-32.70%, Digestible dry matter (DDM): 63.43%-65.93%, Neutral detergent fiber (NDF): 39.47%-43.21%, Dry matter intake (DMI): 2.81%-3.06% of animal live weight, Crude protein content (CPC): 14.02%-15.74% and Relative feed value (RFV) 139.9-156.7. The results of biplot analysis proved that Lutfibey and Ozerbey-03 sainfoin cultivars were found more superior than the other sainfoin genotypes in terms of important forage yield and forage quality traits in the Southeast Anatolia Region.
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    Mürdümük (Lathyrus sativus L.) hatlarının tohum verimi ve verim komponentlerinin belirlenmesi ve GGE biplot analiz yöntemiyle değerlendirilmesi
    (Ankara Üniversitesi, 2015) Sayar, Mehmet Salih; Han, Yavuz
    Bu çalışma, ICARDAdan (Uluslararası Kurak Alanlar için Tarımsal Araştırma Merkezi, Halep, Suriye) temin edilenmürdümük hatlarının, Diyarbakır ekolojik koşullarındaki tohum verimi ve verim komponentlerinin belirlenmesiamacıyla 2008-09, 2009-10 ve 2010-11 yetiştirme sezonlarında üç yıl süreyle kışlık olarak yürütülmüştür. Araştırmadatarla denemeleri tesadüf blokları deneme desenine göre üç tekerrürlü olarak yürütülmüştür. Üç yıllık ortalamalara göre;fzyolojik olum gün sayısı 208.6-211.7 gün, bitkide bakla sayısı 20.0-34.0 bakla bitki-1 , baklada tohum sayısı 3.08-3.72tohum bakla -1, tohum verimi 188.3-309.2 kg da -1 , biyolojik verim 528.2- 847.1 kg da -1, saman verimi 318.3-551.5 kgda -1 , hasat indeksi % 32.0-% 42.8 ve bin dane ağırlığı 89.3-136.5 g arasında değişim göstermiştir. GGE Biplot analizsonucuna göre; incelenen tüm özellikler dikkate alındığında; araştırmanın yürütüldüğü 2008-09 ve 2009-10 yıllarıbirbirlerine yakın bulunurken, 2010-11 yılı farklı bulunmuştur. Ayrıca araştırmada incelenen sekiz özellik başlıca üçgrup oluşturmuş olup, I. grupta tohum verimi, biyolojik verim, saman verimi, bin dane ağırlığı ve fzyolojik olum günsayısı özellikleri yer almıştır. Araştırmada I. grupta yer alan özellikler bakımından sırasıyla; Sel 706 (6), Sel 681 (4), Sel2999 (12) ve Sel 666 (1) hatları öne çıkmıştır.
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    RANGELAND IMPROVEMENT AND MANAGEMENT STUDIES IN THE SOUTHEASTERN ANATOLIA REGION OF TURKEY
    (Univ Agriculture, Fac Veterinary Science, 2015) Sayar, Mehmet Salih; Han, Yavuz; Basbag, Mehmet; Gul, Ismail; Polat, Tahir
    The purpose of this study was to examine applied rangeland improvement and management studies carried out from 2004 to 2011 in six provinces of the Southeastern Anatolia Region of Turkey. The aims of the studies were to (1) protect and conserve rangeland soil and water resources, (2) improve and strengthen weakened rangeland vegetation, and (3) increase hay yields and grazing capacities of the rangelands. Additionally, one of the most important goals of these studies was to enhance the cultivation of forage crops in cultivated areas in order to decrease the adverse effects of overgrazing and to supply quality roughage for livestock. To achieve these objectives, different rangeland improvement methods and rangeland management strategies were applied in 40 different rangelands in the region. The results indicated that the average sufficient rangeland area per animal unit was 1.99 ha, whereas the value recorded prior to these studies was 4.80 ha.
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    Yield and quality traits of some perennial forages as both sole crops and intercropping mixtures under irrigated conditions
    (2014) Yücel, Hatice; Han, Yavuz; Sayar, Mehmet Salih; Yolcu, Halil
    A field study was conducted to evaluate the yield and quality traits of sole lucerne (L), sole bromegrass (B),sole tall fescue (T), sole orchardgrass (O), sole ryegrass (R), and lucerne + bromegrass + tall fescue (L+B+T)and lucerne + bromegrass + tall fescue + orchardgrass + ryegrass (L+B+T+O+R) intercropping mixtures atthe GAP International Agricultural Research and Training Centre under the irrigated conditions during 2009,2010 , and 2011 in the Southeastern Turkey. Dry matter yield (DMY), crude protein content (CPC), crudeprotein yield (CPY), acid detergent fiber (ADF), neutral detergent fiber (NDF), dry digestible matter (DDM),dry matter intake (DMI) , total digestible nutrients (TDN), and relative fee d value (RFV) were determined inthis study . The L+B+T intercr opping mixture and sole lucerne provided higher yields than the other cropstested. Sole lucerne had higher protein and quality contents than the other sole perennial forages andintercropping m ixtures . The L+B+T intercropping mixture had a higher yield and quality than the othersole perennial forages and intercropping mixture s, with the exception of sole lucerne.
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    YIELD AND QUALITY TRAITS OF SOME PERENNIAL FORAGES AS BOTH SOLE CROPS AND INTERCROPPING MIXTURES UNDER IRRIGATED CONDITIONS
    (Soc Field Crop Sci, 2014) Sayar, Mehmet Salih; Han, Yavuz; Yolcu, Halil; Yucel, Hatice
    A field study was conducted to evaluate the yield and quality traits of sole lucerne (L), sole bromegrass (B), sole tall fescue (T), sole orchardgrass (O), sole ryegrass (R), and lucerne + bromegrass + tall fescue (L+B+T) and lucerne + bromegrass + tall fescue + orchardgrass + ryegrass (L+B+T+O+R) intercropping mixtures at the GAP International Agricultural Research and Training Centre under the irrigated conditions during 2009, 2010, and 2011 in the Southeastern Turkey. Dry matter yield (DMY), crude protein content (CPC), crude protein yield (CPY), acid detergent fiber (ADF), neutral detergent fiber (NDF), dry digestible matter (DDM), dry matter intake (DMI), total digestible nutrients (TDN), and relative feed value (RFV) were determined in this study. The L+B+T intercropping mixture and sole lucerne provided higher yields than the other crops tested. Sole lucerne had higher protein and quality contents than the other sole perennial forages and intercropping mixtures. The L+B+T intercropping mixture had a higher yield and quality than the other sole perennial forages and intercropping mixtures, with the exception of sole lucerne.