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    ASSESSMENT OF THE IMPACT OF ECOLOGICAL FACTORS ON YIELD AND QUALITY PARAMETERS IN TRITICALE USING GGE BIPLOT AND AMMI ANALYSIS
    (Pakistan Botanical Soc, 2016) Kendal, Enver; Sayar, Mehmet Salih; Tekdal, Sertac; Aktas, Husnu; Karaman, Mehmet
    We examined the effects of late spring frost on grain yield (GY) and quality of spring triticale ( x Triticosecale) genotypes, based on genotype plus genotype x environment interaction (GGE) biplot analysis. The study included a total of 25 genotypes, including 20 advanced lines, 3 triticale varieties, and 2 candidate lines. The genotypes were evaluated for GY and quality traits during the 2012/2013 (normal season) and 2013/2014 (late spring frost) seasons. We observed significant differences between seasons for GY and quality traits, as affected by changing environmental conditions over the two seasons. Late spring frost caused a statistically significant 50% reduction in GY, 7.1% reduction in test weight (TW), and 26.1% reduction in thousand grain weight (TGW); however, it positively affected protein content (PC), and it increased by 42.6%. We observed that early heading genotypes were differently affected by late spring frost, compared to late maturing genotypes, in terms of GY, TW, and TOW. The GGE biplot analysis highlighted three and four distinct groups of traits in the 2012/2013 and 2013/2014 growing seasons, respectively. Results from the GGE biplot analysis revealed that G12 and G16 were stable and ideal genotypes for all of the traits in the 2012/2013 season, and G 10 and G23 were stable and ideal for the 2013/2014 season. In addition, G10 was the best genotype averaged over the two growing seasons. The genotypes G9, G13, and 017 were more stable and higher yielding, based on Additive Main Effect and Multiplicative Interaction (AMMI) analysis, compared to the remaining genotypes.
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    Bazı buğdaygil bitki türlerinin yem kalite değerlerinin belirlenmesi ve biplot analiz yöntemi ile özelliklerarası ilişkilerin değerlendirilmesi
    (2018) Başbağ, Mehmet; Çaçan, Erdal; Sayar, Mehmet Salih
    Hayvan beslemesinde kullanılacak kaba yemlere ait besin içeriklerinin ve kalite parametrelerininönceden bilinmesi başarılı bir hayvancılık için büyük öneme sahiptir. Bu çalışma doğal olarak yetişen bazıbuğdaygil yem bitkisi türlerinin yem kalitesini belirlemek amacıyla yürütülmüştür. Dicle Üniversitesikampüs alanında yeralan doğal vejetasyondan 2017 yılında toplanan 13 değişik buğdaygil cinsine ait 15buğdaygil yem bitkisi türü, araştırmanın materyalini oluşturmuştur. Bitki türlerine ait doğadan toplanantohumlar Dicle Üniversitesi Ziraat Fakültesi Araştırma arazinde ayrı ayrı parsellere ekilerek, çiçeklenmedöneminde ot ile ilgi analizlerinin yapılması için hasat edilmiştir. Her parselden 3 tekerrürlü olarak alınankuru ot örnekleri Dicle Üniversitesi Bilim ve Teknoloji Uygulama ve Araştırma Merkezi (DÜBTAM)Laboratuarlarında analiz edilmiştir. İncelenen özelliklere ait veriler üzerinde yapılan istatiksel analizsonucuna göre, incelenen tüm özellikler için buğdaygil bitki türlerinin 0.01 düzeyinde birbirlerinden farklıolduğu saptanmıştır. Ayrıca araştırmada incelenen özelliklerin 15 buğdaygil türü arasında aşağıdakiaralıklarda değişim gösterdiği belirlenmiştir; ham protein oranı (HP) - %6.2-19.3; kuru madde oranı (KMO)- %88.9-91.7; asit deterjanda çözünmeyen lif oranı (ADF) - %22.9-43.2; nötral deterjanda çözünmeyen liforanı (NDF) - %45.9-74.6; asit deterjanda çözünmeyen protein oranı (ADP) - %0.08- 0.63; sindirilebilirkuru madde oranı (SKM) %55.3-71.0; kuru madde tüketimi oranı (KMT) - %1.61-2.62 ve nisbi yemdeğerleri (NYD) - 68.9-143.1. Biplot analiz yöntemiyle yapılan analizlerde ise aşağıdaki sonuçlaraulaşılmıştır. İncelenen özelliklerin birbirinden farklı 5 grup oluşturduğu belirlenmiştir. Kuru madde oranı,ADF ve NDF oranlarından oluşan 3 özellik arasında olumlu ve önemli ilişki saptanmış olup, bu üç özellikbakımından sindirilebilirlik oranı ve nisbi yem değerleri en düşük olan Bromus tectorum türü öne çıkmıştır.Öte yandan, aynı grupta yeralan ham protein oranı, magnezyum içeriği ve sindirilebilir kuru madde oranıözellikleri arasında da olumlu ve önemli ilişki olduğu saptanmıştır. Bu üç özelliğin bulunduğu grupta yeralan tek buğdaygil türü olan Lolium perenne türü dikkat çekici bulunmuştur. Yine aynı şekilde nisbi yemdeğeri ve kuru madde tüketim oranı özellikleri arasında da önemli olumlu ilişki olduğu belirlenmiş olup, ikiözellik bakımından ise Festuca arundinacea ve Phalaris canariensis türleri öne çıkmıştır.
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    Bazı Tıbbi ve Aromatik Bitkilerin Yem Kalitesi Açısından Değerlendirilmesi
    (2018) Çaçan, Erdal; Başbağ, Mehmet; Sayar, Mehmet Salih; Tonçer, Özlem; Karan, Halil
    Bu çalışma, Güneydoğu Anadolu Bölgesi’nin çayır-mera alanlarında doğal olarak yetişen ve hayvanlar tarafındantüketilen bazı tıbbi ve aromatik bitkilerin yem kalitesini belirlemek amacıyla yürütülmüştür. Araştırmada materyal olarak 2017yılında toplanan 13 adet farklı tıbbi ve aromatik bitki türü (Mentha spicata, Origanum onites, Thymus kotschyanus, Salviaofficinalis, Artemisia sp., Aloysia citriodora, Melissa officinalis, Tanacetum densum, Ocimum basilicum, Satureja hortensis,Mentha piperita, Thymbra spicata ve Phlomis kotschyana) kullanılmıştır. Her tür için bitkilerin çiçeklenme döneminde üçtekerrürlü olarak alınan otlarında analizler yapılmıştır. Analiz sonuçlarına göre tıbbi ve aromatik bitkilerin ham protein (HP)oranları % 10.74-24.59, asit deterjanda çözünmeyen lif (ADF) oranları % 17.31-40.99, nötral deterjanda çözünmeyen lif(NDF) oranları % 26.39-56.34, sindirilebilir kuru madde (SKM) oranları % 57.0-75.4, kuru madde tüketim (KMT) oranları %2.13-4.55, nispi yem değerleri (NYD) 94.1-251.2, kalsiyum (Ca) oranları % 0.94-2.01, magnezyum (Mg) oranları % 0.25-0.63, potasyum (K) oranları % 1.76-3.78 ve fosfor (P) oranları % 0.14-0.32 arasında değişim göstermiştir. Araştırmada baştaOcimum basilicum türü olmak üzere türlerin 11 tanesinin en iyi ot kalitesini ifade eden Prime sınıfında yer aldığı belirlenmiştir.Melissa officinalis türü 145.4 nispi yem değeri ile bir alt sınıf olan birinci sınıfta, en düşük nispi yem değerine (94.1) sahipPhlomis kotschyana türünün ise üçüncü kalite sınıfında yer aldığı belirlenmiştir. Bu çalışma, tıbbi ve aromatik bitkilerinyüksek kalitede yem üretme potansiyeline sahip olduğunu göstermiştir. Ancak bu bitki türlerine ait otlar, hayvanların yoğuntüketimine sunulmadan önce alkoloid ve glikozit gibi toksik madde içerikleri ile beraber, kalsiyum ve fosfor gibi mineralmadde içeriklerindeki uyumsuzluklardan kaynaklanabilecek olumsuzluklara da dikkat edilmesi gerektiği unutulmamalıdır.
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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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    Determining Forage Quality Values of Salvia multicaulis VAHL. Species Collected From Different Locations of the Southeastern Anatolia Region of Turkey
    (2020) Çaçan, Erdal; Sayar, Mehmet Salih; Başbağ, Mehmet
    The study was conducted to determine forage quality criteria of Salvia multicaulis VAHL. species collected from different locations of Southeastern Anatolia Region of Turkey in 2018. Results of statistical analysis of the study data revealed that there were significant differences among the locations for all of the investigated traits. Additionally, among the locations the investigated traits were changed as following; dry matter content (DM) 88.66-91.58%, crude protein content (CP) 16.47-25.37%, insoluble protein content in acid detergent (ADP) 0.8%-1.10%, acid detergent fiber content (ADF) 22.08-29.54%, neutral detergent fiber content (NDF) 29.71-%43.85%, calcium (Ca) content 1.22-1.82%, phosphor (P) content 0.23-0,40%, Ca:P ratio 3.05-6.87, potassium (K) content 1.20-2.58%, magnesium (Mg) content 0.28-0.46% and K/(Ca+Mg) ratio 0.55-1.44. Results of the study revealed that dry forage of Salvia multicaulis species is both rich in terms of crude protein content and having a high digestibility level and its macro minerals content and K/(Ca+Mg) ratio to be sufficient for animal feeding. However, due to its too high level Ca:P ratio than critical top level (2:1), it is important to be careful against the risk of poisoning of animals when the forages of this species are used in animal feeding. Hence, additional research is required to determine the harmful effect of the species on the livestock health.
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    DETERMINING QUALITY TRAITS OF SOME CONCENTRATE FEEDSTUFFS AND ASSESSMENTS ON RELATIONS BETWEEN THE FEEDS AND THE TRAITS USING BIPLOT ANALYSIS
    (Parlar Scientific Publications (P S P), 2021) Basbag, Mehmet; Sayar, Mehmet Salih; Cacan, Erdal; Karan, Halil
    The study was conducted to determine quality traits of some concentrate feedstuffs. For this purpose, commonly used eight concentrate feedstuffs samples were subjected to laboratory analyzes with three replications. According to the analysis results the means of investigated traits were ranged as follow; dry matter contents (DM) 87.29-92.13%, crude ash contents (CAC) 1.57-7.21%, organic matter contents (OM) 81.35-89.01%, crude protein contents (CP) 7.07-45.94%, crude oil contents (CO) 0.89-9.07%, crude cellulose contents (CS) 3.40-39.50%, metabolic energy values (ME) 3112.1-3265.3 kcal/kg, nitrogen-free extract (NFE) 28.50-72.95%, calcium contents (CA) 0.20-1.48%, magnesium contents (MG) 0.02-0.37%, phosphor contents (P) 0.27-0.50%, potassium contents (K) 0.36-2.60%, acid detergent fiber (ADF) contents 9.12 - 44.03%, neutral detergent fiber (NDF) contents 11.12-62.88%, digestible dry matter (DDM) contents 54.60-80.24%, dry matter intake (DMI) 1.91-13.16% and relative feed value (RFV) values 80.77-809.68. Additionally, biplot analysis revealed that there were positive relationship among ADF, NDF, CS, CO and DM traits. Accordingly; safflower meal (1) and cottonseed meal (2) went ahead for these traits. Similarly, positive relationship was determined among ME, RFV, DDM, DMI, NFE and K traits. Exclusively, the ground corn grain (3) was found superior for the important traits, so it was found as having best quality feedstuff.
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    Determining quality traits of some concentrate feedstuffs and assessments on relations between the feeds and the traits using biplot analysis
    (Parlar Scientific Publications, 2021) Başbağ, Mehmet; Sayar, Mehmet Salih; Çaçan, Erdal; Karan, Halil
    The study was conducted to determine quality traits of some concentrate feedstuffs. For this purpose, commonly used eight concentrate feedstuffs samples were subjected to laboratory analyzes with three replications. According to the analysis results the means of investigated traits were ranged as follow; dry matter contents (DM) 87.29-92.13%, crude ash contents (CAC) 1.57-7.21%, organic matter contents (OM) 81.35-89.01%, crude protein contents (CP) 7.07-45.94%, crude oil contents (CO) 0.89-9.07%, crude cellulose contents (CS) 3.40-39.50%, metabolic energy values (ME) 3112.1-3265.3 kcal/kg, nitrogen-free extract (NFE) 28.50-72.95%, calcium contents (CA) 0.20-1.48%, magnesium contents (MG) 0.02-0.37%, phosphor contents (P) 0.27-0.50%, potassium contents (K) 0.36-2.60%, acid detergent fiber (ADF) contents 9.12 - 44.03%, neutral detergent fiber (NDF) contents 11.12-62.88%, digestible dry matter (DDM) contents 54.60-80.24%, dry matter intake (DMI) 1.91-13.16% and relative feed value (RFV) values 80.77-809.68. Additionally, biplot analysis revealed that there were positive relationship among ADF, NDF, CS, CO and DM traits. Accordingly; safflower meal (1) and cottonseed meal (2) went ahead for these traits. Similarly, positive relationship was determined among ME, RFV, DDM, DMI, NFE and K traits. Exclusively, the ground corn grain (3) was found superior for the important traits, so it was found as having best quality feedstuff.
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    Diyarbakır koşullarında yaygın fiğ ( vicia sativa l.) genotiplerinin ot kalitesi ile ilgili bazı özelliklerinsaptanması
    (2012) Yücel, Celal; Yücel, Hatice; Sayar, Mehmet Salih
    Araştırma, Diyarbakır koşullarında yaygın fiğ ( Vicia sativa L.) genotiplerinin ot verimi ve kalitesiile ilgili bazı özelliklerin incelenmesi amacıyla, 2006/07 ve 2007/08 yıllarında kışlık ara ürünyetiştirme döneminde, GAP Uluslararası Tarımsal Araştırma ve Eğitim Mekezinde (Diyarbakır),tesadüf blokları deneme deseninde 4 tekrarlamalı olarak yürütülmüştür. Araştırmada; ham proteinoranı (HPO), ham protein verimi (HPV), nötr deterjan lif (NDF), asit deterjan lif (ADF), kurumadde verimi (KMV), kuru madde alımı (KMA), sindirilebilir kuru madde verimi (SKMV) venispi yem değeri (NYD) gibi özellikler incelenmiştir. Araştırmanın her iki yılında da HPO, HPV,KMV ve SKMV bakımından genotipler arasında istitastiki olarak önemli farklılıklar saptanmıştır.Ayrıca, İncelenen tüm özellikler bakımından yıllar da istatistikî olarak önemli bulunmuştur.Araştırma sonucunda, genotiplerin, sindirilebilir kuru madde verimleri ve nispi yem değerlerinins ıras ıyla birinci yılda 30.2-230 kg da -1ve 105.7 - 161 ; ikinci yılda 193. 0- 453.8 kg da -1ve 170.8 -203.8 arasında değiştiği saptanmıştır. Araştırmada sonucunda 133 1 , 2604, 2490, 2616, 1430 ve1500 genotiplerin, araştırmada yer alan diğer genotiplere göre verim ve kalite bakımından dahaüstün olduğu, adı gecen hatlar ın Diyarbakır kosullarında yetiş tirilmesinin uygun olaca ğı ve ile rideyapılacak ıslah çalışmalarında değerlendirilmesi sonucuna varılmıştır.
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    THE EFFECT DIFFERENT ROW SPACINGS SEEDING RATES AND DROUGHT ON THE FORAGE YIELD AND RELATED TRAITS IN FORAGE PEA
    (Parlar Scientific Publications (P S P), 2022) Sayar, Mehmet Salih; Basbag, Mehmet
    This study was conducted to determine the effect of different row spacings (RS) and seeding rates (SR) on the forage yield and related traits of forage pea (Pisum sativum ssp. arvense L.). The field experiments of the research were established according to the Split Plots in Randomized Complete Block Design with three replications under the rainfed conditions of Bismil, district of Diyarbakir province, Turkey, during two consecutive growing seasons (2019-20 and 2020-21). In the experiments, four row spacings, placed in the main plots, and four seeding rates, placed in the sub-plots, were tested, thus sixteen combination treatments were studied. Due to the great climatic variation between the growing seasons, statistically highly significant (P < 0.01) differences were detected between the growing seasons in terms of all the investigated traits. And the means of the results determined in rainy growing season (2019-20) were found to be higher than those obtained in the dry growing season (2020-21) in terms of all of the investigated traits. Additionally, the means of the investigated traits changed among the row spacing and seeding rate treatments as follows; days to 50% flowering 137.3-144.0 days, natural plant height 53.33-81.00 cm, main stem height 74.50-148.80 cm, main stem numbers per plant 1.12-2.16 stems plant(-1), main stem thickness 3.42-5.56 mm, fresh forage yield 10.15- 45.57 t ha(-1) and dry forage yield 2.65-9.87 t ha(-1). By considering all the means of the investigated traits in the two growing seasons, the biplot analysis results revealed that the investigated traits were divided into three groups, and fresh forage and dry forage yield traits took part in the same group. In terms of the two forage yield traits, 20 cm row spacing and 100 seeds m(-2) treatment was found as the best combination treatment. Hence, when forage yield of forage pea is targeted, that treatment should be preferred.
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    THE EFFECT OF DIFFERENT CUTTING TIMES ON FORAGE QUALITY TRAITS OF ALFALFA (Medicago sativa L.) GENOTYPES AND EVALUATIONS WITH BIPLOT ANALYSIS
    (Parlar Scientific Publications (P S P), 2022) Sayar, Mehmet Salih; Basbag, Mehmet; Cacan, Erdal; Karan, Halil
    This study was conducted to determine the effect of different cutting times on the forage quality traits of twenty-four alfalfa (Medicago sativa L.) genotypes. For this reason, a field trial was established according to separated plots in randomized blocks design with three replications in ecological conditions of Diyarbakir province, Turkey, in 2020. The three plant maturity stages were determined as cutting times. These stages were respectively the pre-flowering, 10% flowering and full flowering periods of alfalfa genotypes. Results of the study revealed that statically highly significant (P<0.01) differences were determined among the cutting times for all of the investigated traits. And the investigated traits had ranges as follow among the cutting times and the alfalfa genotypes; dry matter content (DM) 22.33-31.36%, crude protein content (CP) 14.67-25.87%, acid detergent fiber (ADF) content 25.77-44.10%, neutral detergent fiber (NDF) content 35.40-51.27%, digestible dry matter (DDM) content 54.55-68.85%, dry matter intake (DMI) 2.34-3.40%, metabolizable energy (ME) 8.09-10.84 MJ/kg DM and relative feed value (RFV) 98.98-181.26. Additionally, it was determined that digestibility and consumption status of alfalfa forages decreased with delaying of cutting times. Biplot analysis revealed that when all of the forage quality traits and forage dry matter content were evaluated together, 2nd cutting time, 10% flowering period, was determined as the most appropriate forage harvesting time for alfalfa genotypes. It also showed that there were highly significant (P<0.01) and positive relations among CP, DDM, DMI, ME and RFV traits, and Iside (16), Emiliana (9), Elci (8) and Bilensoy (3) alfalfa cultivars came to fore in terms of the five important forage quality 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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    EFFECTS OF DIFFERENT ROW SPACINGS AND SEEDING RATES ON CONTENT OF IMPORTANT MACRO-MINERALS IN FORAGE PEA
    (Polish Society Magnesium Research, 2023) Sayar, Mehmet Salih; Basbag, Mehmet; Tarhan, Abbas
    This study was conducted to determine the effects of row spacings (RS) and seeding rates (SR) on the macro-mineral content of forage pea (Pisum sativum spp. arvense L.). For this purpose, field experiments were established in line with the Split Plots in Randomized Complete Block Design with three replications. According to the results, the content of the investigated macro-minerals ranged in the tested the row spacings, seeding rates and the growing seasons as follows: calcium (Ca) content 15.03 g kg-1 to 16.67 g kg-1, magnesium (Mg) content 2.40 g kg-1 to 3.40 g kg-1, phosphorus (P) content 3.74 g kg-1 to 4.74 g kg-1 and potassium (K) content 22.81 g kg-1 to 31.48 g kg-1 of forage dry matter (DM). It has been determined that these concentrations of minerals are sufficient for animal needs. Additionally, variance analysis showed that the Mg content of forage pea increased significantly (P<0.01) in the dry growing season, whereas the P and K content of forage pea decreased in the same growing season. Furthermore, a biplot analysis of the data from the two growing seasons showed that 20 cm RS was the best row spacing for reaching the highest Ca, P and K content, while 30 cm RS was found as the best spacing for the highest Mg content in forage pea. Additionally, 150 seed m-2 SR was the ideal seeding rate for obtaining the highest Ca and Mg content in the forage pea.
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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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    FORAGE YIELD AND FORAGE QUALITY TRAITS OF SAINFOIN (Onobrychis viciifolia SCOP.) GENOTYPES AND EVALUATIONS WITH BIPLOT ANALYSIS
    (Parlar Scientific Publications (P S P), 2022) Sayar, Mehmet Salih; Hang, Yavuz; Basbag, 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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    GENOTYPE ENVIRONMENT INTERACTIONS AND STABILITY ANALYSIS FOR DRY-MATTER YIELD AND SEED YIELD IN HUNGARIAN VETCH (Vicia pannonica CRANTZ.)
    (Soc Field Crop Sci, 2013) Sayar, Mehmet Salih; Anlarsal, Adem Emin; Basbag, Mehmet
    This study was conducted to determine genotype environment interactions and the stability status of twelve Hungarian vetch (Vicia pannonica Crantz.) genotypes in terms of dry-matter yield and seed yield under the ecological conditions of the Southeastern Anatolia Region of Turkey. The experiments were performed in five locations in the region during the 2008-2009 and 2009-2010 growing seasons. The experiments were performed according to a complete randomized block design with three replications. Genotype environment interactions were found to be highly significant (P < 0.01) for dry-matter yield and seed yield, indicating that the Hungarian vetch genotypes' dry-matter yield and seed yield were significantly affected by the year and condition of the location. The stability of the genotypes was estimated using the mean yield of genotypes (x(i)), regression coefficient (bi), regression deviation mean square (S(2)d(i)), determination coefficient (R-2), and regression line intercept (a). Stability analysis indicated that although the most stable genotype was the Ege Beyazi-79 cultivar in terms of dry-matter yield, the Oguz-2002 cultivar was the most stable in terms of seed yield.
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    GENOTYPE–ENVIRONMENT INTERACTIONS AND STABILITY ANALYSIS FOR DRY-MATTER YIELD AND SEED YIELD IN HUNGARIAN VETCH (Vicia pannonica CRANTZ.)
    (2013) Sayar, Mehmet Salih; Başbağ, Mehmet; Anlarsal, Adem Emin
    This study was conducted to determine genotype–environment interactions and the stability status of twelve Hungarian vetch (Vicia pannonica Crantz.) genotypes in terms of dry-matter yield and seed yield under the ecological conditions of the Southeastern Anatolia Region of Turkey. The experiments were performed in five locations in the region during the 2008-2009 and 2009-2010 growing seasons. The experiments were performed according to a complete randomized block design with three replications. Genotype–environment interactions were found to be highly significant (P < 0.01) for dry-matter yield and seed yield, indicating that the Hungarian vetch genotypes’ dry-matter yield and seed yield were significantly affected by the year and condition of the location. The stability of the genotypes was estimated using the mean yield of genotypes (xi), regression coefficient (bi), regression deviation mean square (S2di), determination coefficient (R2), and regression line intercept (a). Stability analysis indicated that although the most stable genotype was the Ege Beyazi-79 cultivar in terms of dry-matter yield, the Oguz-2002 cultivar was the most stable in terms of seed yield
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    Güneydoğu Anadolu Bölgesinde Bulunan Aegilops Türlerinde Bazı Ot Kalite Özelliklerinin Belirlenmesi
    (2023) Başbağ, Mehmet; Sayar, Mehmet Salih
    Bu çalışma Güneydoğu Anadolu Bölgesinin farklı lokasyonlarında bulunan doğal floradaki Aegilops neglecta, Aegilops triuncialis ve Aegilops umbellate türlerine ait otların kalite özelliklerini belirlemek amacıyla yürütülmüştür. Araştırmada Aegilops türlerine ait ot örnekleri 2023 yılının ilkbahar döneminde türlerin çiçeklenme döneminde her lokasyondan üç tekerrürlü alınarak ot kalite analizleri yapılmıştır. Yapılan varyans analiz sonucuna göre incelenen tüm özellikler bakımından lokasyonlardaki Aegilops türleri arasında istatistiksel olarak önemli farklılar tespit edilmiş ve incelenen özelliklerin aşağıdaki aralıklarda değişim gösterdiği belirlenmiştir; ham protein oranı (HPO) % 8.64-18.18, kuru madde oranı (KMO) % 91.55-93.93, asit deterjanda çözünmeyen lif (ADF) oranı % 29.63-39.40, nötral deterjanda çözünmeyen lif (NDF) oranı % 44.79-68.76, asit deterjanda çözünmeyen protein (ADP) % 0.23-0.65, sindirilebilir kuru madde (SKM) % 58.21-65.82, kuru madde tüketim (KMT) % 1.75-2.97, Nispi yem değerleri (NYD) 80.50-154.73, potasyum (K) % 1.27-2.94, kalsiyum (Ca) % 0.26-1.15, magnezyum (Mg) % 0.13-0.27, fosfor (P) % 0.26-0.42, Ca/P 0.85-3.05 ve K/(Ca+Mg) 1.55-6.79. Araştırma sonuçları dikkate alındığında; genel olarak Aegilops türlerine ait otların çiftlik hayvanlarının gereksinimlerini karşılayacak düzeyde mineral madde içeriklerine sahip olduğu, en yüksek ham protein ve sindirilebilirlik oranının Diyarbakır-13 (4) lokasyonunda bulunan Aegilops neglecta türünden elde edildiği ve bu türün ot kalitesinin diğer türlere göre daha iyi olduğu sonucuna varılmıştır.
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    Güneydoğu Anadolu Bölgesinde yem bitkileri tarımının mevcut durumu sorunları ve çözüm önerileri
    (2010) Başbağ, Mehmet; Anlarsal, A. Emin; Sayar, Mehmet Salih
    Ülkemizde son yıllardaki yem bitkileri desteklemelerine paralel olarak tarla tarımı içerisinde yem bitkileri ekim oranı %2-3’lerden %7.40 seviyesine çıkmış olmasına rağmen, Güneydoğu Anadolu Bölgesinde bu oran %1.57’de kalmıştır. Yem bitkisi ekilişlerinden ve bölgenin doğal çayır mera alanlarından elde edilen toplam kaba yem üretimi bölgenin mevcut durumda sahip olduğu hayvan varlığının ancak %33.39’una yetecek kadardır. Bölgenin sahip olduğu mevcut hayvan varlığının beslenmesi için her türlü yem bitkilerinin yetiştirilmesine uygun bir ekolojiye sahip olan Güneydoğu Anadolu Bölgesinde yem bitkileri tarımının geliştirilmesi büyük önem taşımaktadır.