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Articles 1 - 30 of 76
Full-Text Articles in Life Sciences
Application Of Data Mining On Evaluation Of Energy Dissipation Over Low Gabion-Stepped Weir, Farzin Salmasi, Mohammad Taghi Sattari, Mahesh Pal
Application Of Data Mining On Evaluation Of Energy Dissipation Over Low Gabion-Stepped Weir, Farzin Salmasi, Mohammad Taghi Sattari, Mahesh Pal
Turkish Journal of Agriculture and Forestry
Results of a study designed to examine the behavior of gabion-stepped weirs for energy dissipation are presented in this paper. Laboratory tests were conducted with 8 physical models consisting of 3 different porosities (38%, 40%, and 42%) and 2 slopes (1:1 and 1:2). An iron plate was also placed on each horizontal and vertical step to study and classify the effect of step porosity on the energy dissipation rate. A decision tree technique was used to derive if-then rules in order to classify the energy dissipation through the weir models. Results from this study suggest that a decision tree model …
The Effect Of Cadmium On Growth And Antioxidant Responses In The Safflower (Carthamus Tinctorius L.) Callus, Shahram Namjooyan, Ramezanali Khavarinejad, Franceous Bernard, Shahrokh Namdjoyan, Hamed Piri
The Effect Of Cadmium On Growth And Antioxidant Responses In The Safflower (Carthamus Tinctorius L.) Callus, Shahram Namjooyan, Ramezanali Khavarinejad, Franceous Bernard, Shahrokh Namdjoyan, Hamed Piri
Turkish Journal of Agriculture and Forestry
Safflower (Carthamus tinctorius L.) callus cultures grown in the presence of different concentrations (0-100 µM) of cadmium were assayed for growth, Cd accumulations, and antioxidative responses. Cadmium inhibited the growth of calli by 25% and 46% at 75 and 100 µM Cd concentrations, respectively. Cadmium concentration in the calli increased with an increased Cd supply in the growth medium. Calli accumulated 334 mg Cd kg^{-1} of their dry weight at 100 µM Cd. Cadmium induced oxidative stress, which was indicated by modulating antioxidant (glutathione and \alpha-tocopherol) levels and antioxidative enzymes. The effect of Cd on glutathione (GSH) was dose-dependent. The …
Genetic Characterization Of Pyrenophora Graminea Isolates And The Reactions Of Some Barley Cultivars To Leaf Stripe Disease Under Greenhouse Conditions, Harun Bayraktar, Kadi̇r Akan
Genetic Characterization Of Pyrenophora Graminea Isolates And The Reactions Of Some Barley Cultivars To Leaf Stripe Disease Under Greenhouse Conditions, Harun Bayraktar, Kadi̇r Akan
Turkish Journal of Agriculture and Forestry
The genetic diversity of Pyrenophora graminea, the causal agent of barley leaf stripe disease, was characterized by restriction fragment length polymorphism (RFLP) of the rDNA internal transcribed spacer region and intersimple sequence repeat (ISSR) analysis. A total of 45 P. graminea isolates recovered from different geographic origins and barley cultivars or genotypes produced identical RFLP banding patterns with HinfI, MspI, Hin6I and BsuRI restriction enzymes. ISSR analysis indicated that there was little genetic variability among the isolates. A dendrogram based on Jaccard's coefficient separated the isolates into 4 clusters with 12% dissimilarity. In the dendrogram, the isolates collected from different …
Spot Blotch Resistance In Derivatives Of European Winter Wheat, Zilvinas Liatukas, Vytautas Ruzgas
Spot Blotch Resistance In Derivatives Of European Winter Wheat, Zilvinas Liatukas, Vytautas Ruzgas
Turkish Journal of Agriculture and Forestry
The effects of inoculum concentrations and the aggressiveness of spot blotch (Bipolaris sorokiniana (Sacc.) Shoemaker) isolates were evaluated on the resistance of 123 winter wheat advanced breeding lines developed from European winter wheat as well as on 3 control cultivars, BR8, BH1146, and Zentos. The test was conducted under laboratory conditions using a detached leaf technique. A total of 3 inoculum concentrations were used: 0.5 × 10^3, 1 × 10^3, and 5 × 10^3 spores mL^{-1}. The results of the study revealed low resistance of the tested material when accessions were compared by the percentage of disease severity (DS), but …
Soil Failure Mode In Front Of A Multiple-Tip Horizontally Operated Penetrometer, Abbas Hemmat, Azar Khorsandi, Vahab Shafaie
Soil Failure Mode In Front Of A Multiple-Tip Horizontally Operated Penetrometer, Abbas Hemmat, Azar Khorsandi, Vahab Shafaie
Turkish Journal of Agriculture and Forestry
Mechanical resistance of a soil to failure has been widely used to estimate the degree of soil compaction. Our previous study showed that the magnitude of force measured by the horizontally operated penetrometer depends on the soil failure mode in front of the sensor tip. In this research, 2 horizontally operated penetrometers were developed to investigate whether the critical depth (dc) at which the soil failure transition from brittle to compressive occurs is dictated by the aspect ratio (working depth/width ratio) of the tip or of the shank of the sensor. In the first sensor, the width of the shank …
Influence Of Eccentric Drawbar Force On Power Delivery Efficiency Of A Wheeled Tractor, Mirko Simikic, Nebojsa Dedovic, Lazar Savin, Milan Tomic, Hasan Hüseyi̇n Si̇lleli̇, Ondrej Ponjican
Influence Of Eccentric Drawbar Force On Power Delivery Efficiency Of A Wheeled Tractor, Mirko Simikic, Nebojsa Dedovic, Lazar Savin, Milan Tomic, Hasan Hüseyi̇n Si̇lleli̇, Ondrej Ponjican
Turkish Journal of Agriculture and Forestry
Power delivery efficiency shows how much engine power is used for a tractor drawbar. Eccentric traction is a factor influencing the power delivery efficiency of a wheeled tractor. It occurs as a consequence of the offset position of a tractor implement, that is, when the traction line of the tractor and resistance line of the implement are parallel and do not coincide. This paper presents research on the power delivery efficiency of wheeled tractors and its dependence on wheel slippage of central and eccentric drawbar forces on unplowed and plowed stubble. For this purpose, mathematical models and one algorithm were …
Combined Treatment Of Modified Atmosphere Packaging And 1-Methylcyclopropene Improves Postharvest Quality Of Japanese Plums, Mustafa Erkan, Hakan Eski̇
Combined Treatment Of Modified Atmosphere Packaging And 1-Methylcyclopropene Improves Postharvest Quality Of Japanese Plums, Mustafa Erkan, Hakan Eski̇
Turkish Journal of Agriculture and Forestry
Two Japanese-type plum (Prunus salicina Lindell) cultivars, 'Autumn Giant' and 'Black Beauty', were harvested at commercial maturity stage and either packed in nonperforated modified atmosphere packaging (MAP) or treated with a 500 ppb dose of 1-methylcyclopropene (1-MCP) alone or given a combination of 1-MCP and MAP. After these treatments, the plum samples were stored at 0 °C for 60 days. Treatment with either 1-MCP or modified atmosphere packaging (MAP) alone or with the 1-MCP+MAP combination reduced fruit softening, ethylene production, respiration rate, weight loss, and flesh browning, and resulted in higher flesh firmness, titratable acidity, and total soluble solids as …
Morphological And Physiological Differences Between Bareroot And Container Juniperus Excelsa Seedlings, Ayşe Deli̇göz
Morphological And Physiological Differences Between Bareroot And Container Juniperus Excelsa Seedlings, Ayşe Deli̇göz
Turkish Journal of Agriculture and Forestry
The effects of stock type on morphological and physiological characteristics were compared in 1 + 0 Crimean juniper (Juniperus excelsa Bieb.) seedlings. In October 2010, the morphological characteristics of both stock types were determined. The physiological condition of both stock types was evaluated by measuring water relation, root growth potential (RGP), and root electrolyte leakage (REL) parameters in seedlings at periodic intervals from October 2010 to April 2011. Container seedlings had greater root collar diameter, higher height, and greater shoot dry weight than bareroot seedlings, but these differences were not significant. However, the shoot-to-root ratios of the container seedlings were …
Black Walnut (Juglans Nigra L.) Standing Volume In The Riparian Forests Of The Czech Republic, Lubomir Salek, Daniel Zahradnik, Lubomir Tipmann, Robert Marusak
Black Walnut (Juglans Nigra L.) Standing Volume In The Riparian Forests Of The Czech Republic, Lubomir Salek, Daniel Zahradnik, Lubomir Tipmann, Robert Marusak
Turkish Journal of Agriculture and Forestry
Black walnut (Juglans nigra L.) is one of the most valuable non-native tree species growing on alluvial soils in the southeastern part of the Czech Republic. However, its standing volume is currently calculated according to oak tables, although its growth and standing volume is likely different. In order to determine the observed black walnut standing volume and to express a difference between black walnut and other main tree species growing on alluvial soils, 63 temporary sample plots of pure black walnut stands were established and, for determination of tree volume, 63 sample trees with various dimensions were felled and measured …
Effect Of Al Compounds On Soil Ph And Bioavailability Of Al In Two Acid Soils, Toufiq Iqbal
Effect Of Al Compounds On Soil Ph And Bioavailability Of Al In Two Acid Soils, Toufiq Iqbal
Turkish Journal of Agriculture and Forestry
Two aluminum compounds, AlCl_3 and Al(OH)_3, were used to determine the effect of Al compounds on pH and bioavailability of Al in 2 acid soils. Both soils were incubated for periods of 3, 10, and 30 days. Al-tolerant (ET8) and Al-sensitive (ES8) wheat seedlings were used as a testing plant to confirm bioavailability of Al^{3+} in soil solution. Both soils were acidified through the addition of Al compounds to detect the maximum Al^{3+} toxicity level of these compounds. The results showed that the AlCl3 compound increased the bioavailability of Al^{3+} in soil solutions. In contrast, AlCl_3 decreased bulk soil pH. …
Effect Of Some Botanicals For The Management Of Plant-Parasitic Nematodes And Soil-Inhabiting Fungi Infesting Chickpea, Rose Rizvi, Irshad Mahmood, Sartaj Ali Tiyagi, Zehra Khan
Effect Of Some Botanicals For The Management Of Plant-Parasitic Nematodes And Soil-Inhabiting Fungi Infesting Chickpea, Rose Rizvi, Irshad Mahmood, Sartaj Ali Tiyagi, Zehra Khan
Turkish Journal of Agriculture and Forestry
A field experiment was conducted during 2009-2011 at the University Agricultural Research Farm to evaluate the efficacious nature of some botanicals such as Argemone mexicana, Calotropis procera, Solanum xanthocarpum, and Eichhornia echinulata in combination with normal as well as deep ploughing against plant-parasitic nematodes and soil-inhabiting fungi infesting chickpea (Cicer arietinum L.) cultivar K-850 in relation to its growth characteristics. Significant reduction was observed in the multiplication of plant-parasitic nematodes Meloidogyne incognita, Rotylenchulus reniformis, Tylenchorhynchus brassicae, and Helicotylenchus indicus and in the frequency of parasitic fungi such as Macrophomina phaseolina, Fusarium oxysporum, Rhizoctonia solani, Phyllosticta phaseolina, and Sclerotium rolfsii by …
Comparison Of Hybrid Maize Obtained From Inbred Lines That Are Selected Via Top-Crossing And Discriminant Analysis, Ahmet Öz
Turkish Journal of Agriculture and Forestry
This research was done at the Black Sea Agricultural Research Institute in Samsun, in 2006 and 2007. The study was conducted to determine the effectiveness of discriminant analysis in determining the parents among inbred lines in hybrid corn breeding. Grain yield and some yield components of the hybrid maize, which was obtained from inbred lines that were selected in accordance with top-crossing and discriminant analysis, was examined in the research. According to the average of 2 years, the average grain yield of 11 maize hybrids obtained via top-crossing was 9160 kg ha^{-1}, whereas the average grain yield of 8 maize …
Evaluation Of Fatty Acid Compositions And Some Seed Characters Of Common Wild Plant Species Of Turkey, Muhammet Tonguç, Sabri̇ Erbaş
Evaluation Of Fatty Acid Compositions And Some Seed Characters Of Common Wild Plant Species Of Turkey, Muhammet Tonguç, Sabri̇ Erbaş
Turkish Journal of Agriculture and Forestry
Seeds of 14 commonly found plant species from 3 different families (Brassicaceae, Dipsacaceae, and Asteraceae) were investigated for 1000-seed weights (g), total oil (%), total protein (%), total soluble sugar contents (TSS; mg g^{-1}), and fatty acid compositions (%). Correlation coefficients of fatty acids from different families were investigated, as well. Palmitic, stearic, oleic, linoleic, linolenic, eicosenoic, and erucic acids were present in varying amounts. Within the family Brassicaceae, only Cardaria draba did not contain eicosenoic and erucic acids, while species of the Asteraceae and Dipsacaceae did not contain linolenic, eicosenoic, or erucic acids. The 1000-seed weights ranged between 0.17 …
Prohexadione-Ca And Young Cane Removal Treatments Control Growth, Productivity, And Fruit Quality Of The Willamette Raspberry, Milena M. Poledica, Jasminka M. Milivojevic, Dragan D. Radivojevic, Jelena J. Dragisic Maksimovic
Prohexadione-Ca And Young Cane Removal Treatments Control Growth, Productivity, And Fruit Quality Of The Willamette Raspberry, Milena M. Poledica, Jasminka M. Milivojevic, Dragan D. Radivojevic, Jelena J. Dragisic Maksimovic
Turkish Journal of Agriculture and Forestry
Plant growth retardants' applications have a practical use in fruit production, generally resulting in better vegetative growth and cropping level balance. Foliar applications of the gibberellin synthesis inhibitor prohexadione-Ca (ProCa), removal of young canes, and the combination of these treatments were evaluated in the Willamette raspberry (Rubus idaeus L). The experiment consisted of 5 treatments, including 1 untreated control. ProCa was applied during the period of April-May, as a foliar spray at active ingredient concentrations of 100 ppm (first application) and 200 ppm (second application) at a 3-week interval, either in treatment with ProCa alone or in combination with young …
Moringa Oleifera Leaf Extract: An Innovative Priming Tool For Rangeland Grasses, Wasif Nouman, Muhammad Tahir Siddiqui, Shahzad Maqsood Ahmed Basra
Moringa Oleifera Leaf Extract: An Innovative Priming Tool For Rangeland Grasses, Wasif Nouman, Muhammad Tahir Siddiqui, Shahzad Maqsood Ahmed Basra
Turkish Journal of Agriculture and Forestry
Moringa oleifera leaf extract (MLE) is rich in amino acids, ascorbate, zeatin, minerals, and many other compounds known for their growth-promoting potential. This study was planned to explore the potential of MLE as a seed priming agent to increase the germination rate and plant vigor of 3 range grasses, i.e. Cenchrus ciliaris, Panicum antidotale, and Echinochloa crusgalli. The priming strategies used were hydropriming, CaCl_2, PEG-8000 (-1.1 M Pa), MLE (concentrate; 1:10, 1:20, 1:30, and 1:40 dilutions with distilled water), and matripriming using saturated jute mat for 24 h. The primed seeds were placed between 2 moist Whatman No. 1 filter …
The Effect Of Ryegrass (Lolium Italicum L.) Stand Densities On Its Competitive Interaction With Cleavers (Galium Aparine L.), Sava Vrbnicanin, Mirjana Kresovic, Dragana Bozic, Aleksandar Simic, Radojka Maletic, Ahmet Uludağ
The Effect Of Ryegrass (Lolium Italicum L.) Stand Densities On Its Competitive Interaction With Cleavers (Galium Aparine L.), Sava Vrbnicanin, Mirjana Kresovic, Dragana Bozic, Aleksandar Simic, Radojka Maletic, Ahmet Uludağ
Turkish Journal of Agriculture and Forestry
Italian ryegrass (Lolium italicum L. cv. Tetraflorum) seed production is an important industrial activity in Serbia. Cleavers (Galium aparine L.) interferes in Italian ryegrass seed production as well as in many other crops. The effect of stand density of Italian ryegrass on its competitive interaction with cleavers was investigated in western Serbia in the 2005-2006 and 2006-2007 cropping seasons. The established density treatments of Italian ryegrass were 5 kg ha^{-1} seeding rate with 60 cm row spacing (SD_1), 5 kg ha^{-1} with 20 cm (SD_2), 20 kg ha^{-1} with 60 cm (SD_3), and 20 kg ha^{-1} with 20 cm (SD_4). …
Characterization Of Sunflower Testing Environments In Serbia, Gordana R. Brankovic, Igor M. Balalic, Miroslav Z. Zoric, Vladimir J. Miklic, Sinisa B. Jocic, Gordana G. Surlan-Momirovic
Characterization Of Sunflower Testing Environments In Serbia, Gordana R. Brankovic, Igor M. Balalic, Miroslav Z. Zoric, Vladimir J. Miklic, Sinisa B. Jocic, Gordana G. Surlan-Momirovic
Turkish Journal of Agriculture and Forestry
A sunflower testing network that included 25 commercial hybrids and 26 sites in Serbia was analyzed by the sites regression biplot based on grain yield data in 2006 and 2007. The scientific aims of our study were to determine the representativeness and discriminating ability of the test sites and to identify good test sites for selecting generally and specifically adapted sunflower hybrids. Correlations among test sites, revealed by biplot and with Spearman's nonparametric rank correlation coefficients for each pair of test sites, were compared. Discriminating but nonrepresentative test sites in our study were represented by Aleksa Santic (18.8 °C average …
Use Of Discriminant Analysis For Selection Of Hybrid Maize Parent Lines, Ahmet Öz
Use Of Discriminant Analysis For Selection Of Hybrid Maize Parent Lines, Ahmet Öz
Turkish Journal of Agriculture and Forestry
This study was conducted to investigate the opportunity to utilize discriminant analysis in the selection of parent lines in hybrid maize breeding. For this purpose, top crosses were obtained by top-crossing 31 inbred maize lines with the FRMo.17 line in 2003. These hybrids were subjected to preyield trials in 2004. The same lines were subjected to observation tests in 2003 and 2004, and yield and yield components were determined. The obtained data were analyzed using the discriminant analysis method. The distances between the lines were determined according to D2 and canonical values. The TK-108, TK-110, TK-13, TK-347, TK-175, TK-157, and …
Induction Of Variability Through Mutagenesis In Opium Poppy (Papaver Somniferum L.), Avijeet Chatterjee, Sudhir Shukla, Brij Kishore Mishra, Anu Rastogi, Sant Prasad Singh
Induction Of Variability Through Mutagenesis In Opium Poppy (Papaver Somniferum L.), Avijeet Chatterjee, Sudhir Shukla, Brij Kishore Mishra, Anu Rastogi, Sant Prasad Singh
Turkish Journal of Agriculture and Forestry
Opium poppy (Papaver somniferum L.), an important plant of the family Papaveraceae, is valued for its extensive medicinal properties due to the presence of more than 80 different alkaloids, which are products of the polygenic interaction of different genes involved in plant metabolism. Broadening the genetic base through induced mutation is a supplementary tool that can lead to the development of genetic variability. The present study was undertaken to generate a broad genetic variability through mutation breeding using physical doses (gamma radiation of kR10 to kR50 at an interval of kR10), chemical doses (EMS of 0.2, 0.4, 0.6, and 0.8% …
Evidence For The Origin Of The B Genome Of Bread Wheat Based On Chloroplast Dna, Nadia Haider
Evidence For The Origin Of The B Genome Of Bread Wheat Based On Chloroplast Dna, Nadia Haider
Turkish Journal of Agriculture and Forestry
The hexaploid bread wheat Triticum aestivum L. (AABBDD) is thought to have originated through one or more rare hybridization events between Aegilops tauschii (DD) and the tetraploid Emmer wheat T. turgidum subsp. dicoccon (AABB). The progenitor of the A genome of T. aestivum has generally been accepted to be T. urartu. The origin of the B genome, however, is controversial and still relatively unknown. Research has found the B genome in T. turgidum to be closely similar to the S genome in section Sitopsis of Aegilops L.; the Sitopsis diploid species were thus proposed as the probable maternal parent in …
Effect Of Row Spacing On Seed And Forage Yield In Sainfoin (Onobrychis Viciifolia Scop.) Cultivars, Vladeta Stevovic, Rade Stanisavljevic, Dragan Djukic, Dragan Djurovic
Effect Of Row Spacing On Seed And Forage Yield In Sainfoin (Onobrychis Viciifolia Scop.) Cultivars, Vladeta Stevovic, Rade Stanisavljevic, Dragan Djukic, Dragan Djurovic
Turkish Journal of Agriculture and Forestry
A field experiment including 3 sainfoin cultivars (Makedonka, EG Norm, and the Sokobanja population) was set up in a seed production trial with the aim of determining adequate row spacing for seed and forage yield. The cultivars were sown at 3 different row spacings (20 cm, 50 cm, and 80 cm) and at a within-row spacing of 1 cm. Seed yield was determined over a 3-year period, whereas forage yield and quality were evaluated from the 2nd cut in the 2nd and 3rd years. Crop thinning through the years, distinct competitive ability of sainfoin, and a large impact of weather …
Seed Priming With Iron And Boron Enhances Germination And Yield Of Dill (Anethum Graveolens), Bahram Mirshekari
Seed Priming With Iron And Boron Enhances Germination And Yield Of Dill (Anethum Graveolens), Bahram Mirshekari
Turkish Journal of Agriculture and Forestry
To study the effects of seed priming with solutions of Fe and B, each at concentrations of 0.5%, 1%, 1.5%, and 2%, and 1.5% Fe + 1% B, on the germination and yield of dill (Anethum graveolens), 2 separate laboratory and field experiments were conducted. The results of the laboratory experiments indicated that the effect of the studied treatments on the final germination percentage was significant. The seedling vigor index of dill was restricted when the Fe and B concentrations increased beyond 1.5% and 1%, respectively. The highest seed yield was recorded for the concentration of 1.5% Fe + 1% …
Effects Of Carbonized Rice Hull And Wood Charcoal Mixed With Pyroligneous Acid On The Yield, And Antioxidant And Nutritional Quality Of Rice, Mi Young Kang, Kyu Hong Heo, Joo Hee Kim, Sun Sik Cho, Pil Dae Seo, Cyren Rico, Sang Chul Lee
Effects Of Carbonized Rice Hull And Wood Charcoal Mixed With Pyroligneous Acid On The Yield, And Antioxidant And Nutritional Quality Of Rice, Mi Young Kang, Kyu Hong Heo, Joo Hee Kim, Sun Sik Cho, Pil Dae Seo, Cyren Rico, Sang Chul Lee
Turkish Journal of Agriculture and Forestry
The effects of mixture of rice hull charcoal and pyroligneous acid (MRPA) and mixture of wood charcoal and pyroligneous acid (MWPA) with reduced rate of chemical fertilizer on the yield, and antioxidant and nutritional quality of rice were investigated. Results showed that RF (Recommended N-P-K fertilizer application = 110-55-48 kg ha^{-1}) generally had higher agronomic and yield components than MWPA and MRPA treatments while MWPA was more effective in improving the yield of rice than MRPA. The total phenolic compounds and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical electron-donating ability were improved at higher application rate of MWPA while xanthine oxidase (XO) inhibition was …
Site Index Curves For Young Populus Tremula Stands On Athos Peninsula (Northern Greece), Kyriaki Kitikidou, Minas Kaymakis, Elias Milios
Site Index Curves For Young Populus Tremula Stands On Athos Peninsula (Northern Greece), Kyriaki Kitikidou, Minas Kaymakis, Elias Milios
Turkish Journal of Agriculture and Forestry
Difference equations derived on the basis of the McDill-Amateis differential functions and from the integral form of the Bertalanffy, Richards, and Korf growth functions were used to model the dominant height growth of young European aspen (Populus tremula L.) stands on Athos Peninsula (northern Greece). Data from stem analysis were used for fitting. Both numerical and graphical analyses were used to compare alternative models. The cross-validation approach was used to analyze the predictive ability of the models. The algebraic difference form of the differential function proposed by McDill and Amateis resulted in the best compromise between biological and statistical aspects …
Different Furrow Management Techniques For Cotton Production And Water Conservation In Harran Plain, Şanlıurfa, Riza Kanber, Sermet Önder, Mustafa Ünlü, Servet Teki̇n, Semi̇h Meti̇n Sezen, Kenan Di̇ker
Different Furrow Management Techniques For Cotton Production And Water Conservation In Harran Plain, Şanlıurfa, Riza Kanber, Sermet Önder, Mustafa Ünlü, Servet Teki̇n, Semi̇h Meti̇n Sezen, Kenan Di̇ker
Turkish Journal of Agriculture and Forestry
In this study, the water saving and conservation potential of various furrow irrigation management techniques for irrigated cotton were compared. Conventional every-furrow irrigation with open-end furrows (EFO) and blocked-end furrows (EFB), and alternate every-other-furrow management with open-end furrows (AFO) and blocked-end furrows (AFB), were considered. Considerable seasonal water savings were obtained with AFO and AFB flows, on average from 717 mm to 906 mm, respectively, when compared to EFO. Alternate furrows showed the ability to reduce tailwater runoff considerably. When compared with EFO, water use was reduced by 9063 m^3 ha^{-1} (60%) using AFB and 7167 m^3 ha^{-1} (48%) using …
Determination Of Puccinia Graminis F. Sp. Tritici Races Of Wheat In Turkey, Zafer Mert, Azi̇z Karakaya, Fazil Düşünceli̇, Kadi̇r Akan, Lütfi̇ Çeti̇n
Determination Of Puccinia Graminis F. Sp. Tritici Races Of Wheat In Turkey, Zafer Mert, Azi̇z Karakaya, Fazil Düşünceli̇, Kadi̇r Akan, Lütfi̇ Çeti̇n
Turkish Journal of Agriculture and Forestry
Stem rust, caused by the fungus Puccinia graminis f. sp. tritici (Pgt), is one of the most important diseases limiting wheat production in Turkey. Surveys were conducted in 2007 and 2008 in order to determine the races of the pathogen present in Turkey. In 2007, it was found that 91 (43%) out of 207 inspected wheat fields were infected with stem rust, and in 2008, it was found that 61 (25%) out of 242 inspected fields were infected. From these samples, 40 single pustule isolates were obtained. The North American differential set, which includes 20 genotypes with different resistance genes, …
An Evaluation Of Seed Spacing Accuracy Of A Vacuum Type Precision Metering Unit Based On Theoretical Considerations And Experiments, İsmet Önal, Adnan Deği̇rmenci̇oğlu, Arzu Yazgi
An Evaluation Of Seed Spacing Accuracy Of A Vacuum Type Precision Metering Unit Based On Theoretical Considerations And Experiments, İsmet Önal, Adnan Deği̇rmenci̇oğlu, Arzu Yazgi
Turkish Journal of Agriculture and Forestry
Currently the most widely used machine for precision seeding of cotton and maize seed is vacuum type. The capture of seeds by vacuum plate and the release of seeds from the vacuum plate should be performed precisely without missing or doubling. The physical phenomena should be clarified theoretically to understand how the precision seeding mechanism works. To solve these problems, an attempt was made to develop a nomogram using equations describing the technical characteristics of the seeder used in this study and to describe the seed capture mechanism relying on basic principles of fluid mechanics and aerodynamic properties of seeds. …
The Role Of Short-Term High Temperature Pretreatment On The Uv-B Tolerance Of Barley Cultivars, Nuran Çi̇çek, Ivanka Fedina, Hüsnü Çakirlar, Maya Velitchkova, Katya Georgieva
The Role Of Short-Term High Temperature Pretreatment On The Uv-B Tolerance Of Barley Cultivars, Nuran Çi̇çek, Ivanka Fedina, Hüsnü Çakirlar, Maya Velitchkova, Katya Georgieva
Turkish Journal of Agriculture and Forestry
The impact of pretreatment with high temperature (45 °C for 45 min) on the UV-B tolerance of 4 barley cultivars (Hordeum vulgare L. 'Bülbül-89', 'Kalaycı-97', 'Tarm-92', and 'Tokak-157/37') was examined. The response of the plants to treatment was evaluated by measuring the pigment content, chlorophyll a fluorescence, oxygen evolution, fraction of oxygen-evolving complex, proline content, UV-B-absorbing compounds (A_{535} and A_{300}), and stress markers (malondialdehyde, H_2O_2, and UV-B marker). Regardless of high temperature pretreatment, UV-B irradiation decreased the photosynthetic pigment content, photosystem II activity, oxygen evolution, and the fraction of oxygen-evolving complex in almost all of the barley cultivars. UV-B treatment …
Rootstock Potential Of Turkish Lagenaria Siceraria Germplasm For Watermelon: Plant Growth, Yield And Quality, Fati̇h Karaca, Hali̇t Yeti̇şi̇r, İlknur Solmaz, Eli̇f Çandir, Şener Kurt, Nebahat Sari, Zehra Güler
Rootstock Potential Of Turkish Lagenaria Siceraria Germplasm For Watermelon: Plant Growth, Yield And Quality, Fati̇h Karaca, Hali̇t Yeti̇şi̇r, İlknur Solmaz, Eli̇f Çandir, Şener Kurt, Nebahat Sari, Zehra Güler
Turkish Journal of Agriculture and Forestry
The rootstock potential of 21 bottle gourds (Lagenaria siceraria) collected from the Mediterranean region (Turkey) was investigated for watermelon with regard to plant growth, yield, and fruit quality. The Crimson Tide watermelon cultivar was used as a scion and 2 commercial rootstocks (L. siceraria) were also used for comparison. In greenhouse conditions, the survival rate of grafted plants and the effect of rootstocks on plant growth were determined. The grafted plants were planted under low tunnels in early spring and the effects of the rootstocks on early yield, total yield, and fruit quality were evaluated. The survival rates of the …
Morphological Diversity Among Fig (Ficus Carica L.) Accessions Sampled From The Eastern Mediterranean Region Of Turkey, Oğuzhan Çalişkan, Ati̇la Ayteki̇n Polat
Morphological Diversity Among Fig (Ficus Carica L.) Accessions Sampled From The Eastern Mediterranean Region Of Turkey, Oğuzhan Çalişkan, Ati̇la Ayteki̇n Polat
Turkish Journal of Agriculture and Forestry
Ficus carica L. is one of the most important fruit species in Turkey. For this study, 76 fig accessions were collected from Hatay, in the Eastern Mediterranean Region of Turkey, in 2008 and 2009; the morphological diversity of plants and fruits was evaluated. Of the samples studied, 2 accessions were determined to be first crop (breba) and the other 74 accessions were identified as main crop. The fruit quality characteristics of Bardak and Dolap for the first crop and Kabak 2, Kabak 1, Mor 1, Sarı 1, and Siyah 1 for the main crop were very promising for the fresh …