Browsing by Author "Yagmur, Mehmet"

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Adaptive Lasso Analysis for Grain Yield and Yield Components in Two-Rowed Barley Under Rainfed Conditions
(Publ House Bulgarian Acad Sci, 2018) Akkol, Suna; Arpali, Digdem; Yagmur, Mehmet
The goal of this study was to determine the yield components related to grain yield in order to improve barley yield under rainfed conditions of Turkey (Van). Stepwise and Adaptive Lasso methods were performed for selection of most significant yield components. As cohesion criteria to compare Stepwise and Adaptive Lasso methods, the adjusted coefficient of determination and Akaike Information Criterion were used. Results revealed that when there were dependencies between independent variables stepwise and Adaptive Lasso achieved the same results. It has been determined that spike number per m(2) and grain weight per spike can be used as the most effective selection criteria for barley breeding studies due to their significant effects on grain yield.
Alleviation of Osmotic Stress of Water and Salt in Germination and Seedling Growth of Triticale With Seed Priming Treatments
(Academic Journals, 2008) Yagmur, Mehmet; Kaydan, Digdem
Effects of seed priming treatments with 0.5% KH2PO4 (w/v) solution and water were determined on germination and seedling characters of hexaploid triticale (Triticosecale Witm., cv. Presto) in different osmotic potential of NaCl and PEG solutions. Drought and salt osmotic stress conditions were separately created by using PEG 6000 and NaCl, respectively, at different osmotic potentials (-0.45, -0.77, -1.03 and -1.44 MPa and control). At the equivalent osmotic potential, the effects of PEG 6000 were more harmful than NaCl on germination and seedling stage. Germination percentage and seedling growth and also relative water content (RWC, %) decreased with the decrease in osmotic potential of PEG 6000 and NaCl. But root-to-shoot length ratios increased with the effects of osmotic stress of PEG 6000 and NaCl. Despite the negative effects of two stress conditions, the two priming treatments were effective in improving germination percentage and seedling growth in Presto. But seed primed treatment was effective at the lowest osmotic potentials; therefore, seedling growth survived at the highest concentrations. Consequently, the effect of hydropriming is very pronounced particularly in improving germination and seedling growth in low stress.
Bazı Tritikale (X Triticosecale Wittmack) Çeşitlerinde Farklı Ekim Sıklıklarının Tane Verimi ve Verim Öğeleri Üzerine Etkileri
(2008) Kaydan, Diğdem; Yagmur, Mehmet
Bu araştırma Van ilinde 2004-2005 ve 2005-2006 kışlık yetiştirme sezonunda tesadüf bloklarında bölünmüş parseller deneme desenine göre üç tekrarlamalı olarak yürütülmüştür. Dört tritikale çeşidi (Karma-2000, Presto, Tatlıcak-97, Mikham-2002) altı farklı ekim sıklığında (250, 350 450, 550, 650, 750 tohum/m2 yetiştirilerek tane verimi ve verim öğelerindeki değişim incelenmiştir. Uygulanan ekim sıklıkları her iki yılda da tüm çeşitlerin incelenen özelliklerini önemli derede etkilemiştir. En yüksek tane verimi 2004-2005 yılında 328.3 _ kg/da ile Mikham-2002 çeşidinde 550 tohum/m2 ekim sıklığında, 2005-2006 yılında, ise 303.0 kg/ da ile Presto çeşidinde 650 tohum/m2 ekim sıklığında elde edilmiştir. Sonuç olarak, ekim sıklığına bağlı olarak tüm çeşitlerde tane verimi, bitki boyu bir dereceye kadar artmış daha sonraki ekim sıklıklarında ise azalmıştır. Ayrıca metrekarede fertil başak sayısı ekim sıklığı ile birlikte artmış, buna karşılık başakta tane sayısı, başakta tane verimi ve bin tane ağırlığı azalmıştır.
Chemical Composition of Essential Oil of Mentha Longifolia L. Subsp Longifolia Growing Wild
(Pakistan Botanical Soc, 2017) Okut, Nese; Yagmur, Mehmet; Selcuk, Nilufer; Yildirim, Bunyamin
The essential oil of Mentha longifolia L., is very important to some culinary usage and antimicrobial activity. The essential oil of Mentha longifolia subsp. longifolia growing in the Bahesaray area (Van Province, Turkey) was studied. This study designed for determine of essential oil constituent Mentha longifolia subsp. longifolia that collected from wild area. Mint leaves sample essential oils obtained by hydro distillation and essential oil components were determined using GC-MS. The main component of wild grown Mentha longifolia subsp. longifolia was Menthone (19.31%). Second one and others were Pulegone (12.42%), Piperitone (11.05%), Dihydrocarvon (8.32%), Limonene (6.1%), 3-Terpinolenone (5.66%), 1,8-Cineole (4.37%), Germacrene D (3.38%) and Caryopyllene (3.19%), respectively.
Chemical Diversity of Essential Oil From Leaves of Ziziphora Clinopodioides Growing in Van, Turkey
(Parlar Scientific Publications (p S P), 2018) Okut, Nese; Selcuk, Nilufer; Yagmur, Mehmet; Yildirim, Bunyamin
Blue Mint Bush (Ziziphora clinopodioides) belongs to the family Lamiaceae and grows in Iran, Iraq, Central and Eastern part of Turkey. The leaves of Ziziphora clinopodioides L. samples were collected on the beginning of July (2010) from Kocko-pru area (Van Province, Turkey) at an altitude of 1924 m and described accordingly. Hydrodistillation was used to isolate the essential oil of the plant and then 33 constituents were identified by using GC-MS. The majority presented compounds of the essential oil were Pulegone (29.31%), Menthone (21.79%), 1,8-Cineole (15.31%), beta-Pinene (8.74%), Limonene (3.91%), alpha-Pinene (3.17%), 3-Terpinolenone (3.09%), beta-Phellandrene (2.88%), respectively. Menthofurane, Isopulegone and Germacrene D are represented by low concentrations. A cluster analysis was carried on the essential oil composition of Z. clinopodioides to identify homogenous groups.
The Effects of Different Sowing Depth on Grain Yield and Some Grain Yield Components in Wheat (Triticum Aestivum L.) Cultivars Under Dryland Conditions
(Academic Journals, 2009) Yagmur, Mehmet; Kaydan, Digdem
The aim of the current study was to determine the effects of sowing depths (3, 5, 7, 9 cm) on grain yield and yield components for wheat cultivars during 2004-2006 at one site in Van Province in Eastern Turkey. Grain yield and yield components were found to positively correlate with coleoptile length, with marked declines observed in grain yield and yield components among varieties with shorter coleoptiles in deepest sowing. Wheat sown at 5 cm gave greater yields than wheat sown at 3, 7 and 9 cm by 19.9, 22.3 and 62.5%, respectively. The highest grain yield (2.98 T ha(-1)) was obtained with the Alparslan cultivar sown at a depth of 5 cm. Grain yield of all varieties tested was drastically reduced when sown at depths of 9 cm, with the exception of the local Tir and Alparslan varieties, both of which, when compared to the other varieties tested, had longer coleoptiles.
Effects of Salicylic Acid on the Growth and Some Physiological Characters in Salt Stressed Wheat (Triticum Aestivum L.)
(Ankara Univ, Fac Agr, 2007) Kaydan, Digdem; Yagmur, Mehmet; Okut, Nese
This study was conducted to determine the effects of seed soaking in salicylic acid (10(-2) mol/L, 10(-4) mol/L, 10(-6) mol/L and control) on the growth and some physiological characters in wheat (Triticum aestivum L.) under salinity (8 ds m(-1)) and non salinity conditions. NaCl reduced the emergence percentage, the growth parameters (shoot and root dry weight), K+/Na+ ratio, osmotic potential and photosynthetic pigments (Chl a, b and carotenoids) contents in wheat seedlings. The emergence percentage was not changed, in contrast, shoot and root dry weight of seedlings, K+/Na+ ratio, photosynthetic pigments (Chl a, b and carotenoids) contents and osmotic potential were increased by salicylic acid treatments under non salinity condition. Seed soaking in SA increased the emergence percentage, osmotic potential, shoot and root dry weight, K+/Na+ ratio, photosynthetic pigments (Chl a, b and carotenoids) contents in the salinity stressed wheat seedlings. These results were indicated that SA has positive effects on plant growth in salinity and non salinity conditions. But the effects of SA was higher on emergenge percentage, K+/Na+ ratio and osmotic potantial in salinity condition compared to non salinity condition was obtained in this study.
The Effects of Sewage Sludge Application on Grain Yield and Nutrient Status of Grain in Triticale Under Rainfed Conditions
(Parlar Scientific Publications (p S P), 2016) Arpali, Digdem; Gulser, Fusun; Yagmur, Mehmet
Eight treatments were used to evaluate the effects of sewage sludge and mineral fertilizer on grain yield and some grain yield componnets, plant nutrient contents and heavy metal concentrations in triticale grain (cv Mikham 2001). The study was conducted using a completely randomized design with 3 replicates in dry conditions in Van, in the East Anatolia region of Turkey in winter cereal cropping season of 2009-2010. Sewage sludge was added to the soil 6 different rates of 5, 10, 15, 20, 25, 30 T ha(-1) and a single dose of nitrogen and phosphorus fertilizers like as standard dose (80 kg N ha(-1)+69 kg P ha(-1)). Moreover, control plot was not added any mineral fertilizer or sewage sludge. According to study results, the highest sewage sludge rate resulted in 99 % higher grain yield compared to control. Moreover the highest sewage sludge rate were obtained 20 % more grain yield than mineral fertilizer. The obtained results show that the grain triticale took distinctly more macroelements under the influence of sewage sludge in comparison with the control. Additionally grain mineral concentrations such as N, P, Mg, Zn, Fe were significantly affected with increasing of sewage sludge rates. In contrast, other nutrients (K, Mn, Al, Ni, Cu, Cd, Pb, Cr) was not affected significantly the increasing of sewage sludge rates. It is concluded that, 30 T ha(-1) sewage sludge rate could be substitute for commercial fertilizer for having optimum plant growth of triticale in marginal lands.
Effects of Sowing Methods and Rates on Weeds, Grain Yield and Some Yield Components of Wheat
(Ankara Univ, Fac Agr, 2011) Kaydan, Digdem; Tepe, Isik; Yagmur, Mehmet; Yergin, Reyyan
This research was conducted to determine the effects of different sowing rates (450, 550 and 650 seed m(-2)) and sowing methods (sowing to the rows, broadcasting to seeding depth and contrary rows with 90 degrees) on weeds, grain yield and some yield components of wheat local "Tir" variety (Triticum aestivum L. ssp vulgare Vill. v. leucospermum Korn) under dryland condition of Van in 2006-07 and 2008-09 winter growing seasons. It was found that contrary rows with 90 degrees unaffected to reduce weeds density but it was highly effective sowing methods to decrease weeds biomass. However, higher seeding rates, in the current study, reduced insignificantly weeds density, but it reduced weed biomass. In the current study, sowing methods and seeding rates significantly affected grain yields and yields components. The highest grain yield was obtained 650 seed m(-2) and sowing to contrary rows with 90 degrees.
Effects of Zinc and Urea as Foliar Application on Nutritional Properties and Grain Yield in Barley (Hordeum Vulgare L-Cony Under Semi Arid Condition
(Parlar Scientific Publications (p S P), 2017) Yagmur, Mehmet; Arpali, Digdem; Gulser, Fusun
This current study was conducted to evaluate the effects of different rates of urea and zinc on grain yield and some important grain mineral contents in barley (Hordeum vulgare L. cony. Distichon cv. Tokak 157/37). The experimental design was a randomized complete block (RCB), arranged as split-plot with two doses of urea (0, 20 kg ha(-1)) (main plots) and five zinc doses (0, 0.5, 1.0, 2.0 and 4.0 kg ha(-1)) (subplots) with 3 replicates. The recorded agronomic parameters were grain yield (kg ha(-1)), plant height (cm), spike length (cm), seeds spikes(-1), 1000 kernel weight (g), seeds weight spike(-1) and grain mineral contents (N, P, Zn and Fe). When used solely, either urea or zinc significantly increased grain yield and all measured parameters. Besides, the use of the combined higher zinc doses with the urea (20 kg urea ha(-1)+4 kg Zn ha(-1), 20 kg urea ha(-1)+2 kg Zn ha(-1)) increased grain yield (3.49 t ha(-1) and 3.64 t ha-(1)). These yields were not statistically different between each other, suggesting that 20 kg urea ha(-1) + 2 kg Zn ha(-1) application dose would be sufficient for higher grain yield. Moreover, the foliar application of urea and zinc affected the protein content and grain mineral contents (N, Zn and Fe) when sprayed at boot stage of barley. To conclude, zinc & urea treatment via foliar will maintain better quality and higher quantity barley grains under under semi arid conditions.
Farklı Salisilik Asit Dozları ve Uygulama Şekillerinin Buğday (Triticum Aestivum L.) ve Mercimekte (Lens Culinaris Medik.) Verim ve Verim Öğeleri Üzerine Etkileri
(2006) Kaydan, Diğdem; Yagmur, Mehmet
Bu araştırma, farklı salisilik asit dozları (0 mg $da^{-1}$, 1.281 mg $da^{-1}$, 128.1 mg $da^{-1}$, 12.810 g $da^{-1}$) ve uygulama şekillerinin (tohuma ve yapraktan püskürtme) verim ve verim öğeleri üzerine olan etkilerini belirlemek amacıyla iki farklı deneme şeklinde Tir buğday hattı (Triticum aestivum L. ssp vulgare Vill. v. Leucospermum Körn) ve Kayı-91 (Lens culinaris Medik.) yeşil mercimek çeşidinde 2004-05 yılında Van ekolojik koşullarında yürütülmüştür. Araştırmada elde edilen sonuçlara göre; buğday denemesinde bitki boyu hariç metrekarede fertil başak sayısı, başak uzunluğu, başakta tane sayısı, başakta tane verimi, bin tane ağırlığı ve birim alan tane verimine uygulama şekillerinin etkili olmadığı ancak, salisiiik asit dozlarının metrekarede fertil başak sayısı ve bin tane ağırlığı dışındaki tüm özellikleri artan dozlara doğru orantılı olarak arttırdığı belirlenmiştir. En yüksek tane verimi 276.58 kg $da^{-1}$ ile 12.810 g $da^{-1}$ salisilik asit dozundan elde edilmiş ve birim alan tane verimi (kg $da^{-1}$ ) artışı kontrol dozuna göre % 24.8 olarak belirlenmiştir. Mercimek denemesinde ise; metrekarede bitki sayısı, bitki boyu ve bin tane ağırlığına salisilik asit dozları ve uygulama şekillerinin etkili olmadığı belirlenmiştir. Salisilik asit dozlarının artması ile toplam dal sayısı, bitkide tane sayısı, bitkide tane verimi ve birim alan tane verimi artmış, tohuma ve yapraktan püskürtme şeklinde salisilik asit uygulaması ile bitkide toplam dal sayısı ve bitkide tane sayısı farklılık göstermiştir. En yüksek birim alan tane verimi ise, 141.60 kg $da^{-1}$ ile 12.810 g $da^{-1}$ salisilik asit dozu ve yapraktan uygulama şeklinde elde edilmiş ve birim alan tane verimi artışı kontrol dozuna göre % 35 olarak belirlenmiştir.
Germination, Seedling Growth and Relative Water Content of Shoot in Different Seed Sizes of Triticale Under Osmotic Stress of Water and Nacl
(Academic Journals, 2008) Kaydan, Digdem; Yagmur, Mehmet
Effect of seed size ( small, medium and large) on germination and seedling growth of triticale (xTriticosecale Witm. cv. Presto) at the different osmotic potential of NaCl and PEG solutions were determined in the present study. Germination tests were conducted under five osmotic potential levels (-0.45, -0.77, -1.03, -1.44 MPa, and Control) of PEG 6000 and NaCl. Germination percentage (%) at 4 and 8(th) days and also seedling growth traits such as root and shoot length ( mm), dry root and shoot weight (mg), root : shoot length ( R: S) ratio, and relative water content of shoot (RWC, %) were investigated in this study. The results indicated that decreases in the osmotic potentials caused a reduction in germination percentage and seedling growth. It was seen that drought created by PEG 6000 had more negative effects on germination and seedling growth than that of NaCl. In consequence, the total germinability and seedling growth were higher in large seeds rather than in small seeds in control solution and under osmotic stress. In addition, it was observed that seedlings obtained from larger seeds survived even at the lower osmotic potential of PEG and NaCl; whereas, seedling obtained from small seeds did not survive in the intensive stress.
Kışlık Buğday Tane Verimi, Verim Öğeleri ve Fenolojik Dönemler Arasındaki İlişkiler
(2008) Kaydan, Diğdem; Yagmur, Mehmet
Bu çalışma ile 16 kışlık ekmeklik buğday çeşidinin tane verimi ile değişik verim öğeleri arasındaki ilişkileri korelasyon ve path analizi yöntemleri ile belirlenmiştir. Van ekolojik koşullarında, 2005-2006 ve 2006-2007 yetiştirme sezonunda yürütülmüştür. İki yılın ortalamasında, tane verimi metrekarede başak sayısı (r=0.752**), başakta tane sayısı (r=0.469**), başak tane verimi (r=0.188*),. bitki boyu (r=0.250**), tane dolum süresi (r=0.365**) ve başak boyu (r=0.355**) arasında önemli derecede pozitif korelasyonlara sahip olmuştur. Buna zıt olarak tane verimi ile vejetasyon süresi (r=-0.415**) arasında önemli derecede olumsuz ilişkiler bulunmuştur. Tane verimi ile diğer incelenen öğeler arasında istatistiki önemsizlikte ilişkiler tespit edilmiştir. Path analizinden elde edilen doğrudan etkiler, tane verimine birinci derecede metrekarede fertil başak sayısının, ikinci derecede başakta tane veriminin etkili olduğunu göstermiştir. Bu nedenle, bölgede ekmeklik buğday ıslah çalışmalarında tane verimini geliştirmek için en önemli seçim kriterleri olarak metrekarede başak sayısı ve hatta erken başaklanma süresi, başakta tane sayısı ve başakta tane verimi kullanılabilir.
Kuru Fasulye (Phaseolus Vulgaris L.) Yetiştiriciliğinde Farklı Ekim Sıklığı ve Fosforlu Gübre Dozlarının Tane Verimi ve Verim Öğeleri Üzerine Etkileri
(2005) Yagmur, Mehmet; Engin, Müjgan; Kaydan, Diğdem
Bu çalışmada; Van-GUrpınar koşullarında Şeker kuru fasulye çeşidine {Phaseolus vulgaris L.) üç değişik ekim sıklığı (25, 37.5, 50 tohum/m2) ve beş farklı fosforlu gübre dozu (0, 1.5, 3.0, 4.5 ve 6 kg $P_2O_5$ /da) uygulanarak tane verimi ve verim öğelerindeki değişimin incelenmesi amaçlanmıştır. Araştırma, tesadüf bloklarında bölünmüş parseller deneme desenine göre dört tekrarlamalı olarak yürütülmüştür. İki yıllık araştırma sonuçlarına göre araştırmanın yapıldığı her iki yılda da; birim alan tane verimi ve bazı verim öğeleri ekim sıklıklarından ve fosfor dozlarından önemli ölçüde etkilenmiştir. En yüksek birim alan tane verimi, birinci yılda 192.00 kg/da ile 50 tohum/ m2 ekim sıklığı ve 6 kg $P_2O_5$ /da fosfor dozundan elde edilirken en düşük değer 145.75 kg/da ile 25 tohum/ m2 ekim sıklığı ve 0 kg $P_2O_5$ /da fosfor dozunda belirlenmiştir. İkinci yılda ise en yüksek birim alan tane verimi 170.10 kg/da ile 37.5 tohum/ m2 ekim sıklığı ve 4.5 kg $P_2O_5$ /da fosfor dozunda elde edilirken, en düşük değer 126.25 kg/da ile 25 tohum/ m2 ekim sıklığı ve 0 kg $P_2O_5$ /da fosfor dozunda belirlenmiştir.
Plant Growth and Protein Ratio of Spring Sown Chickpea With Various Combinations of Rhizobium Inoculation, Nitrogen Fertilizer and Irrigation Under Rainfed Condition
(Academic Journals, 2011) Yagmur, Mehmet; Kaydan, Digdem
In the present study, it was aimed to determine the effects of different combination of rhizobium inoculation, nitrogen application and irrigation on nodule dry weight, protein ratio and seed yield of spring sown chickpea (Cicer arietinum L. cv ILC 482). The field experiment was carried out for two consecutive seasons in Van, Turkey in summer growing seasons of 1999 and 2000. All combinations influenced seed yield and yield components, therefore, there were highly significant differences in plant height (cm), number of branches per plant (plant(-1)), number of pods per plant (pods plant(-1)), number of seed per plant (seed plant(-1)), seed yield (kg ha(-1)), and protein ratio (%). The combination of nitrogen (60 kg N ha(-1)) and irrigation had the highest seed yield. Moreover, this combination was followed by the combination of inoculation and nitrogen (20 kg N ha(-1)) and irrigation (In-1+N-1+Ir-1). In contrast, the combination of uninoculation, no nitrogen application and nonirrigation (In-0+N-0+Ir-0) had the lowest seed yield. Moreover, the results obtained from the combination of inoculation, nitrogen (20 kg N ha(-1)) and irrigation was comparable to that of the combination of nitrogen (60 kg N ha(-1)) and irrigation for seed yield. Therefore, the combination of inoculation and nitrogen (20 kgN ha(-1)) and irrigation treatment can be use instead of the combination of nitrogen (60 kg N ha(-1)) and irrigation in chickpea production for achieving higher seed yield in rainfed condition. It is concluded, that nitrogen or inoculation has superior performance in seed yield and protein ratio under irrigation compared to those of nonirrigation conditions.
Potasyum Uygulamasının Tuz Stresindeki Arpanın Fotosentetik Pigment İçeriği, Ozmotik Potansiyel, $k^+/na^+$ Oranı ile Bitki Büyümesindeki Etkileri
(2006) Kaydan, Diğdem; Okut, Neşe; Yagmur, Mehmet
Bu saksı çalışmasında, Tokak 157/37 arpa çeşidinde (Hordeum vulgare L.) potasyum uygulamasının $(K_2SO_4)$ tuzlu ve tuzsuz koşullarda etkilerinin belirlenmesi amaçlanmıştır. Saksılarda 4 farklı (0, 200, 400, ve 600 mg K $kg^{-1}$ saksı) potasyum dozu, tuzlu ve tuzsuz ortamlarda uygulanmıştır. Denemede tuzluluk düzeyi 8 mmhos cm- olarak belirlenmiştir. Tuz stresi şartlarında Tokak 157/37 arpa çeşidinin toprak altı ve toprak üstü kuru ağırlıkları, ozmotik potansiyeli, fotosentetik pigment içerikleri ve $K^+/NA^+$ oranında tuzsuz şartlara göre kıyaslandığında azalma belirlenmiştir. Toprağa uygulanan potasyumun Tokak 157/37 çeşidinin toprak altı ve üstü kuru ağırlıklarını, ozmotik potansiyeli, fotosentetik pigment içeriklerini ve $K^+/NA^+$ oranlarını arttırmıştır. Potasyum uygulaması bitki gelişimini önemli derecede etkileyerek tuzun negatif etkisini azaltmıştır.
A Research on Yield and Yield Components of Some Bread Wheat (Triticum Aestivum L.) Varieties in Van Ecological Conditions
(Ankara Univ, Fac Agr, 2008) Kaydan, Digdem; Yagmur, Mehmet
Grain yield and some yield components of sixteen bread wheat cultivars (Tir, Bezostaja, Gerek-79, Kutluk-94, Kirgiz-95, Suzen-97, Aytin-98, Harmankaya-99, Altay-2000, Dagdas-94, Lancer, Dogu-88, Karasu-90, Palandoken-97, Nenehatun and Alparslan) were determined in this study that were conducted during the 2005-2006 and 2006-2007 growing seasons in Van ecological conditions. Significant differences were determined in grain yield and yield components among wheat cultivars in two years. According to two year average, days to headings ranged between 180.75 (Aytin-98) and 190.62 (Karasu-90) days; grain filling duration, 33.12 (Lancer) - 39.25 (Gerek-79 and Alparslan) days; spike number per m(2), 265.2 (Tir) - 412.2 (Dogu-88), spike lenght, 5.72 (Aytin-98) - 7.27 (Nenehatun) cm; plant height, 66.0 (Harmankaya)- 86.05 (Tir) cm; grain number per spike, 20.32 (Gerek-79) - 27.47 (Harmankaya); grain weight per spike, 0.65 (Alparslan) - 0.93 (Harmankaya) g; thousand grain weight, 29.26 (Aytin-98) - 37.45 (Tir) g; grain yield, 167.07 (Tir) - 238.36 (Dogu-88) kg/da. It was concluded that Dogu-88, Nenehatun and Alparslan bread wheat cultivars were promising cultivars in Van regional conditions.
A Research on Yield and Yield Components of Some Two-Rowed Barley Varieties (Hordeum Vulgare L. Conv. Distichon) in Van Ecological Conditions
(Ankara Univ, Fac Agr, 2007) Kaydan, Digdem; Yagmur, Mehmet
This research was conducted during the 2004-2005 and 2005-2006 growing seasons at one site in Van Province. The experimental design was a randomized complete block with four replications and thirteen barley cultivars (Tokak 157/37, Tarm-92, Orza-96, Bulbul-89, Yesevi-93, Aydanhanim, Kalayci-97, Karatay-94, Efes-3, Efes 98, Anadolu 98, Cildir-02 and Zeynelaga) were used in the study. There were significant differences in tested characters among barley cultivars. According to two-year average, 2 days to headings ranged between 179.3 (Tarm-92) and 189.7 (Bulbul 89) days; spike number per m(2), 249.3 (Aydanhanim)- 560.7 (Tarm-92); culm length 51.2 (Cildir-02) -64.9 (Karatay-94) cm; spike length 5.83 (Kalayci-97))- 7.26 (Aydanhanim) cm; grain number per spike 16.32 (Tarm-92)-20.24 (Efes-98); grain weight per spike 0.73 (Tarm-92)- 0.99 (Aydanhanim) g; thousand grain weight 41.70 (Tarm-92)-46.32 (Aydanhanim) g; seed yield 197.30 (Zeynelaga)-319.70 (Tarm-92) kg da(-1) and harvest index 23.11 % (Yesevi-93)- 36.43 % (Kalayci-97). It was concluded that cv Tarm-92, cv Orza-96, cv Tokak 157/37 and cv Bulbul-89 had higher yield than other cultivars in Van regional conditions.
Salisilik Asitin Tuz Stresindeki Buğdayın (Triticum Aestivum L.) Büyümesi ve Bazı Fizyolojik Özellikleri Üzerine Etkileri
(2007) Kaydan, Diğdem; Okut, Neşe; Yagmur, Mehmet
This study was conducted to determine the effects of seed soaking in salicylic acid (10-2 mol/L, 10-4 mol/L, 10-6 mol/L and control) on the growth and some physiological characters in wheat (Triticum aestivum L.) under salinity (8 ds m-1) and non salinity conditions. NaCl reduced the emergence percentage, the growth parameters (shoot and root dry weight), K+/Na+ ratio, osmotic potential and photosynthetic pigments (Chl a, b and carotenoids) contents in wheat seedlings. The emergence percentage was not changed, in contrast, shoot and root dry weight of seedlings, K+/Na+ ratio, photosynthetic pigments (Chl a, b and carotenoids) contents and osmotic potential were increased by salicylic acid treatments under non salinity condition. Seed soaking in SA increased the emergence percentage, osmotic potential, shoot and root dry weight, K+/Na+ ratio, photosynthetic pigments (Chl a, b and carotenoids) contents in the salinity stressed wheat seedlings. These results were indicated that SA has positive effects on plant growth in salinity and non salinity conditions. But the effects of SA was higher on emergenge percentage, K+/Na+ ratio and osmotic potantial in salinity condition compared to non salinity condition was obtained in this study.
Van Ekolojik Koşullarında Bazı Ekmeklik Buğday (Triticum Aestivum L.) Çeşitlerinin Verim ve Verim Öğeleri Üzerine Bir Araştırma
(2008) Kaydan, Diğdem; Yagmur, Mehmet
Van ekolojik koşullarında 2005-2006 ve 2006-2007 yetiştirme sezonunda yürütülen bu araştırmada, on altı ekmeklik buğday (Tir, Bezostaja, Gerek-79, Kutluk- 94, Kırgız- 95, Süzen -97, Aytin- 98, Harmankaya -99, Altay -2000, Dağdaş -94, Lancer, Doğu- 88, Karasu- 90, Palandöken- 97, Nenehatun ve Alparslan) çeşidinin tane verimi ve bazı verim öğeleri belirlenmiĢtir. Tane verimi ve verim öğeleri bakımından her iki yılda da çeĢitler arasında önemli farklılıklar tespit edilmiştir. iki yıllık ortalamaya göre çeşitlerin baĢaklanma süresi 180.75 (Aytin-98) -190.62 (Karasu-90) gün, tane dolum süresi 33.12 (Lancer)- 39.25 (Gerek-79 ve Alparslan) gün, metrekarede fertil baĢak sayısı 265.25 (Tir)- 412.25 (Doğu-88) adet, baĢak uzunluğu 5.72 (Aytin-98)- 7.27 (Nenehatun) cm, bitki boyu 66.00 (Harmankaya)- 86.05 (Tir) cm, baĢakta tane sayısı 20.32 (Gerek-79)-27.47 (Harmankaya) adet, baĢakta tane verimi 0.65 (Alparslan)-0.93 (Harmankaya) g, bin tane ağırlığı 29.26 (Aytin-98)-37.45 (Tir) g ve tane verimi 167.07 (Tir)-238.36 (Doğu-88) kg/da arasında değişmiştir. Doğu-88, Nenehatun ve Alparslan ekmeklik buğday çeşitlerinin Van koşulları için ümitvar oldukları sonucuna varılmıştır.