Browsing by Author "Altuner, Fevzi"

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Antioxidant Activity and Biochemical Contents of Some Cereal Microgreens
(Taylor & Francis Ltd, 2024) Altuner, Fevzi
Microgreens are nutrient-rich functional foods with health-promoting properties. They have higher levels of beneficial components compared to mature plants, particularly cereal microgreens. In this study conducted in a fully controlled climate room, total phenolic (TPC), total antioxidant activity (TAA), total flavonoid content (TFC), total ascorbic acid content (TAC), carotenoid (CAR), and pigment contents of microgreens produced from two barley (Cetin-2000 and Tarm-92), two wheat (Dogu-88 and Ayyildiz) and three oat (Yeniceri, Faikbey and Kahraman) varieties were determined. According to the group averages, barley had the lowest results in terms of TPC, TAA, and TFC. The wheat group had the highest TAA, TPC (with oats), and TFC values (4728.44 mg TE g(-1), 559.53 mg GAE 100 g(-1), and 570.89 mg QE 100 g(-1), respectively). The highest TAC was found in oat (23.15 mg 100 g(-1)). Total chlorophyll content (TCHL), chlorophyll a (CHLa), chlorophyll b (CHLb) and CAR contents were the highest in wheat and lowest in barley. According to the averages, there were ratios between TCHL with CHLa 1.3-fold, CHLb 7-fold, and CAR 5.5-fold. And 3.3-fold ratio occurred between CHLa and CHLb levels. It was determined that the examined cereal microgreens contained significantly antioxidant activities, biochemical and pigment contents.
Determination of Some Spike and Yield Proprties in Lines Selected From Bread Wheat (triticum Aestivum L.) Landraces Grown in Van Golu Basin
(2022) Bilici, Sinem; Altuner, Fevzi
Bu araştırma, Van Gölü Havzası'ndan toplanan ekmeklik yerel buğday popülasyonlarından elde edilen 819 saf hattın verim ve bazı başak özelliklerinin belirlenmesi amacıyla yapılmıştır. Çalışma 4 standart ekmeklik buğday çeşidiyle (Sönmez, Bayraktar, Tosunbey ve Doğu-88) birlikte Augmented Deneme Desenine göre toplam 918 parselde 2020-2021 vejetasyon döneminde Van Yüzüncü Yıl Üniversitesi Tarla Bitkileri deneme alanında yürütülmüştür. Araştırmada genotiplerin ortalama değerleri hat ve standart çeşit sırasıyla; bitki boyları 84.12-78.02 cm, başaklanma süreleri 137-135.51 gün, çiçeklenme süreleri 5-5.06 gün, başak uzunlukları 9.04-8.11 cm, başakta başakçık sayıları 15.7-14.96 adet, toplam verimler 374.6-362.2 kg/da, tane verimleri 128.12-127.70 kg/da, hasat indeksleri %34.4-35.52 ve bin tane ağırlıkları 42.3-33.10 g bulunmuştur. Çalışmada standart çeşitleri geçen hat sayıları, bitki boyunda 636, başaklanma süresinde 643, çiçeklenme süresinde 118, başak uzunluğunda 684, başakta başakçık sayısında 645, toplam verimde 426, tane veriminde 397, hasat indeksinde 313 ve bin tane ağırlığında 764 olmuştur. Maksimum değerler tane veriminde Van-15-10 (314 kg/da), toplam verimde Erciş-66 (880 kg/da), bin tane ağırlığında Van-7-3 (59.2 g) ve bitki boyunda Erciş-4-11 (106.8 cm) hatlarından elde edilmiştir. İncelenen genotiplerin verim ve başak özelliklerinin çoğunda geniş bir varyasyon oluştuğu görülmüştür. Van Gölü Havzası'ndan toplanan ekmeklik buğday popülasyonlarından elde edilen hatların verim ve başak özellikleri yönünden genel olarak kontrol çeşit ortalamasının üstünde verilere sahip oldukları ve bu yönüyle ıslah çalışmaları için ümitvar oldukları sonucuna ulaşılmıştır
Determination of Some Yield and Yield Characteristics of Bread Wheat Populations Grown in Vangölü Basin
(2024) Arvas, Yunus; Altuner, Fevzi
Bu araştırma 2023-2024 yetiştirme sezonunda Bitlis İli Ahlat İlçesi kırsalında gerçekleştirilmiştir. Araştrımada iki ticari çeşit (Enola ve Syrena Odeska), dört yerel çeşit genotipi (Tir, Hevidik, Kirik ve Karakılçık) ve üç yerel çeşit karışımı (Karma-1, Karma-2 ve Karma-3) bitkisel material olarak kullanılmış ve deneme tesadüf bölünmüş parseller desenine göre üç tekerrürlü olarak kuru koşullarda kurulmuştur. Çalışmada kullanılan materyalin, metrekarede başak sayısı, bitki boyu, başak boyu, başakta tane sayısı, başakta tane ağırlığı, toplam verim, tane verimi, hasat indeksi, bin tane ağırlığı, hektolitre ağırlığı ve ham protein oranı gibi özellikleri incelenmiştir. Araştırmada elde edilen sonuçlara göre incelenen tüm özelliklerde çeşitlerin oluşan gruplar üzerindeki etkisi istatistiki açıdan önemli bulunmuştur (P˂0.05). Çalışmada metrekarede başak sayıları 421.67-523.33 adet (en yüksek Kirik, Enola, Karma-1, Karakılçık ve Tir), bitki boyları 71.43-112.40 cm (en yüksek Karma 1, 2, 3 grupları, Tir, Hevidik ve Karakılçık), başak boyları 6.18-8.16 cm (en yüksek Tir), başakta tane sayıları 26.87-35.90 adet (en yüksek Kirik), başakta tane ağırlıkları 1.26-1.48 g (en yüksek tir), toplam verim 712.24-1110.35 kg/da (en yüksek Tir), tane verimi 193.23-284.48 kg/da (en yüksek Syrena Odeska), bin tane ağırlığı 35.64-49.58 g (en yüksek Tir), ham protein oranı %9.64-%11.21 (en yüksek Enola) ve hektolitre ağırlığı 55.09-69.34 kg/hl (en yüksek Enola, Tir ve Kirik) arasında tespit edilmiştir. Araştırmada ticari çeşitler tane verimi, hasat indeksi, protein oranı ve hektolitre ağırlığı gibi özelliklerde yüksek değerlere sahip olmuşlardır. Yerel çeşit ve karışım materyali de bitki boyu, başak boyu ve toplam verimde yüksek değerlere ulaşmışlardır. Bu yönüyle yerel çeşitlerin saman yönünden daha yüksek performansa sahip oldukları anlaşılmıştır. Diğer taraftan hektolitre ve protein değeri gibi kalite özellikleri açısından tatminkâr sonuçlar veren yerel genotip ve karma materyalin gen kaynağı olarak ileri çalışmalarda kullanılması tavsiye edilmektedir. Anahtar kelimeler: Tane verimi, Vangölü havzası, Verim özellikleri, Yerel çeşitler
Determination of the Content of Antioxidants and the Biochemical Composition of Legume Microgreens
(Polish Society Magnesium Research, 2022) Altuner, Fevzi; Tuncturk, Ruveyde; Oral, Erol; Tuncturk, Murat
This research was conducted in 2021, in a controlled climate room of the Van Yuzuncu Yil University, Faculty of Agriculture, Department of Field Crops. It was set up according to the Completely Randomized Experimental Design. Total antioxidant activity (TAA), total phenolic (TPC), total flavonoid (TFC), total ascorbic acid (TAC), total chlorophyll (TCHL), chlorophyll a (CHLa), chlorophyll b (CHLb) and total carotenoid (CAR) concentrations and their correlations in sainfoin (Lutfibey), alfalfa (Bilensoy), red clover (Dadas) chickpea (Arda), lentils (Sazak), cowpea (Amazon), black chickpea (local), mung bean (local) and maize (Arifiye) were determined. The highest amounts of TAA (4789.373 mg TE g(-1) DM) and TPC (791.770 mg GAE 100 g(-1) DM) were determined in red clover, and the amount of TFC (672.177 mg QE 100 g(-1) DM) was the highest in maize. The TAA content of the other plants was 6- to 8-fold lower than in red clover and maize. The TAC content of the plants, except alfalfa, red clover and maize, was similar. Cowpea had the lowest values in terms of TAA, TPC and TPC. The highest TCHL (36.632 mu g g(-1) TA FW), CHLa (25.247 mu g g(-1) TA FW), CHLb (11.385 mu g g(-1) TA FW) and CAR (7.015 mu g g(-1) TA FW) were found in lentils. Pigment values of lentils are 75-79% higher than those in the closest plant. All pigment values of the mung bean were at the lowest level and 50% lower than in the closest plant. A negative and insignificant correlation was found among TAA, TPC and TFC with TAC, a positive and significant correlation was determined among TFC with TAA and TPC, and a positive and very important correlation was detected between TPC and TAA. A positive and very significant correlation was found between CAR with all pigment properties, between CHLb with TCHL and CHLa, and between CHLa and TCHL.
Determination of the Effect of Salt (Nacl) Stress on Germination of Oat (Avena Sativa L.) Seeds Pretreated With Gibberellic Acid
(Parlar Scientific Publications (p S P), 2020) Altuner, Fevzi
The aim of this study was to investigate the effects of gibberellic acid (GA(3)) applications on germination properties and seedling parameters of Faikbey variety of oat (Avena sativa L.) seeds under the stress of salt (NaCl). The study was carried out in 2019 in Van Yuzuncu Yil University, Faculty of Agriculture, Department of Field Crops laboratuary. Four different GA(3) (control (0), 50, 100 and 200 ppm) and four different NaCl levels ( control (0), 100, 200 and 300 mM) were applied in the study. According to the results, the effects of the NaCl doses, GA(3) doses and GA(3) x interactions were significant (p<0.05) on the all germination properties such as the germination power, germination rate, mean germination time, germination index and sensititivity index and had also on the seedling parameters as radicle length, hypocotyl length fresh radicle weight and fresh hypocotyl were significant (p<0.05). The effects of salt and gibberellic acid doses on dry radicle and dry hypocotyl weights were significant (p<0.05), while the effects of salt X gibberellic acid interactions were not significant. In the study, it was observed that germination properties were negatively affected by increasing NaCl concentrations and there was no germination in 300 mM NaCl application. This adverse condition was observed to be controlled with increasing doses of GA(3). On the other hand, it was found that seedling parameters such as radicle and hypocotyl length, which were negatively affected by 67% compared to the control with 100 mM NaCl application, were increased by 2 cm compared to control with 50 ppm GA(3) application.
Determination of the Effects of Salt (Nacl) Stress on Germination in Some Barley (Hordeum Vulgare L.) Varieties
(Univ Namik Kemal, 2022) Altuner, Fevzi; Oral, Erol; Baran, Ishak
This study was carried out on the germination properties and seedling parameters effects of some NaCl doses (control (0) -50-100-150-200 mM) applied to three barley (Hordeum vulgare L.) cultivars (Kral-97: V1 - Altikat: V2 and Larende: V3). The study was carried out in the Laboratory of field crops Department of the Faculty of Agriculture of Van Yuzuncu Yil University in 2019 according to the experiment two way completely randomized design in petri dishes with 4 replications. In this study, germination and seedling characteristics of the barley cultivars under salt stress such as germination power (%), germination rate (%), germination index (%), average germination time (days), sensitivity index (%), root length (cm), stem length (cm), fresh root weight (mg), fresh stem weight (mg), dry root weight (mg) and dry stem weight (mg) were investigated. According to results of germination parameters; the effects of cultivars on germination rate and average germination time were significant. The effects of salt doses on all germination parameters were significant. The effects of varieties and NaCl interactions on the differences in all parameters were significant. According to the average, the lowest germination power and germination rates were taken from 150 mM NaCl applications and therefore it was observed that these two properties decreased by 15.56% compared to control (0). The effects of salt doses and interactions between varieties and salt doses on all parameters were significant, while the effects of varieties other than hypocotyl length were insignificant and the effects on all remaining parameters were significant. Increased salt doses have been observed to have a negative effect on all parameters. According to Salt dose averages, compared to the control group, the most affected trait from salt applications was the average germination time (82.1%) and the least affected trait was the root age weight (28.7%). It was determined that the Larende cultivar had a more salt-resistant performance in terms of all its properties, followed by the Kral-97 variety in general.
Determination of Yield and Yield Components of Some Oat Cultivars, Grown in the Eastern Anatolia Conditions, by Correlation, Path and Cluster Analysis
(Hard, 2022) Altuner, Fevzi
This study was carried out to determine the effects of some agronomic characteristics on grain yield (GY) in 12 oat cultivars by correlation, path and cluster analysis. The GY varied between 2563- 4134 kg/ha and the highest GY was obtained from Haskara, Seydisehir and Dirilis cultivars and the lowest GY was taken from Chekota cultivar. According to the correlation results, positive significant relationships were found between plant height (PH) with harvest index (H)I and negative significant correlaltion with panicle length (PL), number of grains per panicle (NGP), thousand-grain weight (TGW), and total yield (TY). Significant negative relationships among the number of panicles per square meter (NPSM) with NGP and grain weight per panicle (GWP) have been identified. There was a significant positive correlation between the PL and NGP. Positive significant relationships between the NGP with GWP and negative significant relationships with HI have emerged. There is a negative and significant relationship between HI and TY. According to the results of the path analysis, it was determined that the highest positive direct effect on GY was provided by the NPSM (P = 0.699, 25.32%), while the highest negative direct effect was TY (P = -2.190, 36.42%). According to the cluster analysis results of the characteristics examined, it was understood that the cultivars of oat were 64.96% similar and 35.04% different.
The Effects of Nitrogen Fertilization on Yield and Yield Properties of Some Summer Local and Registered Bread Wheat Cultivars
(2021) Gelişken, Alaattin; Altuner, Fevzi
Bu tez, Köse ve Bahare (yerel) ile Cemre ve Seri-82 (ticari) ekmeklik buğday çeşitleri üzerinde 4 azotlu gübre dozu (0, 8, 12 ve 16 kg/da) uygulamalarının etkilerini belirlemek üzere gerçekleştirilmiştir. Araştırma 2019-2020 yazlık üretim sezonunda Van ekolojik koşullarında tesadüf bloklarında bölünmüş parseller deneme desenine göre üç tekerrürlü olarak yürütülmüştür. Araştırmada gübre dozlarının bitki boyu, toplam verim ve tane verimi üzerindeki etkileri çok önemli (P˂0.01), hasat indeksi, başak boyu ve bin tane ağırlığı üzerindeki etkileri ise önemli (P˂0.05) düzeyde oluşmuştur. Çeşitlerin çıkış süreleri, bitki boyu, başak boyu, başak erme süresi, başakta tane sayısı, bin tane ağırlığı ve toplam verim üzerindeki etkileri çok önemli (P˂0.01), tane verimi üzerindeki etkisi ise önemli (P˂0.05) düzeyde gerçekleşmiştir. İnteraksiyonların bin tane ağırlığı, toplam verim, tane verimi ve hasat indeksi üzerindeki etkileri çok önemli, bitki boyu ve başakta tane ağırlığı üzerindeki etkileri ise önemli düzeyde görülmüştür. İnteraksiyonlara göre bitki boyları 29.06-57.33 cm, başakta tane ağırlıkları 0.67-0.8 g, bin tane ağırlıkları 28.33-38.5 g, toplam verim 173.75-432.50 kg/da, tane verimleri 42.50-93.71 kg/da ve hasat indeksleri %21-%33 arasında değişmiştir. En yüksek tane verimleri aynı grupta yer alan tüm çeşitlere 12 ve 16 kg/da N, Köse ve Bahare çeşitlerine 8 kg/da N ve Cemre çeşidinin kontrol uygulamalarından alınmıştır. En yüksek toplam verim Köse çeşidine 16 kg/da N (N3) gübre uygulamasından alınmıştır. Deneme alanı topraklarının organik madde bakımından oldukça fakir olması, sezon içinde alınan yağış miktarının yetersiz ve düzensiz olması, dönem içi yüksek ve ani sıcaklık değişimleri verim değerlerinin düşmesinde çok etkili olmuştur.
Evaluation of Pigment, Antioxidant Capacity and Bioactive Compounds in Microgreens of Wheat Landraces and Cereals
(inst investigaciones Agropecuarias, 2021) Altuner, Fevzi; Tuncturk, Ruveyde; Oral, Erol; Tuncturk, Murat
Landraces that adapt to all kinds of stress factors over thousands of years are considered a very important genetic resource. In this study, antioxidant activities, bioactive compounds, and pigment contents of microgreen in Kose and Kirik wheat landraces, which are used extensively in bread making especially in rural areas of Eastern Anatolia, and some cereals, were examined. In the study, chlorophyll (CHLdx), flavonol (FLV), anthocyanin (ANT), and N balance index (NBI) were measured in fresh material with a Dualex device. Also, total antioxidant capacity (TAC), total phenolic content (TPC), total flavonoid content (TFC), ascorbic acid (AAC) content and pigment values such as total chlorophyll (TCHL), chlorophyll a (CHLa), chlorophyll b (CHLb) and carotenoid content (CAR) were determined. It was observed that TAC capacity of wheat landraces was more than twice that of other cereals (except `Alparslan') and their NBI, AAC, ANT and FLV contents were low. Kirik landrace had high TCHL, CHLa, CHLb and CAR content, while Kose landrace had low all pigment values. Besides, NBI content of barley, AAC and FLV content of oat cultivars and ANT content of wheat 'Alparslan' were high as a group. The CHLdx values of barley and oats were twice that of wheat. A very important and positive correlation was determined between TCHL with CHLa, CHLb, and CAR contents. Also, correlations between CHLa with CHLb and CAR, and between CHLb with CAR was important and positive. In the study, especially TAC capacities of local wheat varieties were significantly higher.
Identifying Amf-Rich Tir Wheat Rhizospheres To Foster Microbial Inoculants Useful in Sustainable Agriculture: Evidence From the Van Lake Basin
(Mdpi, 2025) Najafi, Solmaz; Ulker, Mehmet; Danesh, Younes Rezaee; Demir, Semra; Oral, Erol; Altuner, Fevzi; Pellegrini, Marika
Arbuscular mycorrhizal fungi (AMF) play a pivotal role in sustainable agriculture by enhancing nutrient efficiency and reducing the dependence on synthetic fertilizers. Developing these sustainable, effective products requires knowledge of the target plant and its associated microbial communities in the production landscape of interest. This study focused on AMF populations associated with Tir wheat in six main locations of T & uuml;rkiye's Van Lake Basin. The Er & ccedil;ek-& Ouml;zalp-Saray region exhibited the highest organic matter values. Higher available phosphorous contents were found for Erci & scedil;-Patnos and Muradiye. The Erci & scedil;-Patnos region exhibited the highest AMF density (120 spores/10 g soil) and frequency (75%), while the lowest AMF density (45 spores/10 g soil) was recorded in Muradiye. Sand contents correlated positively with spore number and mycorrhizal frequency and negatively with silt and clay. Based on these results, Erci & scedil;-Patnos was elected as the best location for the isolation of AMF spores suitable for the development of microbial-based tools for Tir wheat cultivation. These results are very important in the current context of climate change, which mandates the use of low-impact environmental strategies. Further research should explore the interactions of AMFs with other microorganisms to optimize their ecological benefits. However, the results of this study provide a valuable basis for future investigations of AMF-based products for use in sustainable Tir wheat cultivation.
The Impact of Salt (Nacl) Stress on Germination Characteristics of Gibberellic Acid (Ga3) Pretreated Quinoa (Chenopodium Quinoa Willd.) Seed
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2020) Oral, Erol; Altuner, Fevzi; Tuncturk, Ruveyde; Baran, Ishak
This research was conducted to examine the effects of gibberellic acid (GA3), which was treated to quiona (Chenopodium quinoa Willd) seeds before germination, on the germination and the seedling growth under saline conditions. Quinoa Titicaca variety, four different GA3 (0.0, 100, 200 and 300 ppm), and four different salt (0.0, 100 mM, 200 mM and 400 mM NaCl) concentrations of exposed stress. Germination power (%), germination ratio (%), germination index (%), mean germination time (day), sensitivity index (%) as of the second day of the research, and radicula length (cm), plumula length (cm), radicula fresh weight (mg), radicula dry weight (mg), plumula fresh weight (mg), and plumula dry weight (mg) on the 14th day were examined. The results indicated that the increasing doses of salt prevented germination and growth parameters of kinoa (Chenopodium quinoa Willd.) seeds. It was observed that the doses of GA3 (Gibberellic acid), which increased gradually before the doses of salt, affected germination and growth positively and significantly. The best results of germination characteristics of wheat seed were obtained from the combination of 300 ppm Gibberellic acid + 0 mM (control) salt.
Impacts of Various Calcium Concentrations on the Biochemical Characteristics of Corn (Zea Mays L.) Seedlings in Drought Conditions
(Taylor & Francis inc, 2024) Kabay, Turgay; Oral, Erol; Eryigit, Tamer; Altuner, Fevzi
In recent years, there has been a significant decrease in corn production and quality due to drought. Ca applications are thought to be effective in eliminating this negative effect of drought. The research was conducted in a climatic chamber using a completely randomized experimental design. Four Ca doses were used in this study as research factors. In the study, increases in malondialdehyde, catalase activity, and superoxide dismutase levels, as well as leaf proportional water content, membrane damage index, Ca, and potassium contents, were examined. As a result of the research; leaf proportional water content was 55.633-72.103%, membrane damage index 44.540-71.643%, K content 1.967-2.733%, Ca content 0.243-0.497%, malondialdehyde activity 0.090-0.114 nmol g(-1) FW, catalase activity 0.015-0.043 nmol g(-1) FW and superoxide dismutase varied between 0.011 and 0.027 unit g(-1) FW. Drought stress has negative effects on yield and quality properties in crop production. It has been determined that these negative impacts vary depending on the genetic structure of the plants as well as the presence of regulatory elements such as Ca. In this research, it was determined that Ca fertilization under drought stress caused a decrease in K content and some enzymatic activities such as MDI, MDA, CAT, and SOD, and an increase in LWC and Ca contents in corn seedlings. As a result, it is concluded that the applied Ca doses reduced the negative effects of drought. In conclusion, the 400 mg L-1 Ca application is recommended for reducing the negative effects of drought stress.
The Determination of Yield Properties of Some Oil Seed Plants Rapeseed (Brassica Napus L.), Safflower (Carthamus Tinctorius L.), Sunflower (Helianthus Annus L.), and Peanut (Arachis Hypogaea L.) Van-Gevaş Ecological Conditions
(2002) Altuner, Fevzi; Arslan, Burhan
Bu çalışma, Van-Gevaş ekolojik koşullarında bazı yağlı tohumlu bitkilerin (kolza, aspir ayçiçeği ve yerfıstığı ) verimlilik durumlarının belirlenmesi amacıyla yapılmıştır. Deneme 2000 yılında çiftçi koşullarında tesadüf blokları deneme desenine göre ve 3 tekrarlamalı yürütülmüştür. Tane verimleri, kolzada 71.50-96.13 kg/da, aspirde, 81.49-128.14 kg/da, ayçiçeğinde, 76.00-115.44 kg/da, ve yerfıstığında, 80.38-114.77 kg/da arasında tesbit edilmiştir.Anahtar Kelimeler: Kolza, ayçiçeği, aspir, yerfıstığı, çeşit, verim