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Articles 1 - 30 of 98
Full-Text Articles in Agriculture
Effect Of Some Plant Growth Regulators On Fruit Thinning In Apricots, Mehtap Coşkun, Ahsen Işik Özgüven
Effect Of Some Plant Growth Regulators On Fruit Thinning In Apricots, Mehtap Coşkun, Ahsen Işik Özgüven
Turkish Journal of Agriculture and Forestry
This study was carried out during 1995-1996 in Çukurova. In the experiment, Priana and Belliana were used as comparative cultivars. In addition, 12.5, 25, 50 ppm of NAA and 500, 1000, 2000, 4000 ppm of carbaryl and 50 % of hand thinning were applied about three weeks after full bloom. The results showed that 50 ppm NAA increased both the thinning rate and the fruit size while 1000 and 2000 ppm of carbaryl had a positive effect on the fruit size and weight without having any effect on thinning. Although the treatments gave better results on the fruit size and …
Effects Of The Spiral Grain On Some Physical Properties Of Calabrian Pine (Pinus Brutiaten.) Wood, Yener Göker, Nusret As, Turgay Akbulut, Türker Dündar
Effects Of The Spiral Grain On Some Physical Properties Of Calabrian Pine (Pinus Brutiaten.) Wood, Yener Göker, Nusret As, Turgay Akbulut, Türker Dündar
Turkish Journal of Agriculture and Forestry
In this study, the effects of spiral grain on some physical properties of the Calabrian pine (Pinus brutia Ten.) wood were investigated. For this purpose, 17 sample trees with various spiral grain angles, were taken from the Çakirlar region, Antalya district. The selected trees were divided into five groups according to grain angles. Tests were carried out for oven dry density, density values in volume, shrinkage, fiber saturated point (FSP) and maximal moisture content. The results led to a number of conclusions; In general, density increased in relation to the spiral grain increase. Density (oven dry weight/green volume) increased after …
Hybrid Vigor In Common Wheat (Triticum Aestivum L.), Köksal Yağdi, Şenay Karan
Hybrid Vigor In Common Wheat (Triticum Aestivum L.), Köksal Yağdi, Şenay Karan
Turkish Journal of Agriculture and Forestry
This research was carried out at the experimental plots of the Field Crops Department of Agriculture Faculty, Uludağ University, during 1994-1996. Thirteen strains of common wheat obtained from the Prof. Dr. Osman Tosun Gene Bank were used as parent material for seven combinations of hybridirazations. In the F 1 populations belonging to the abovementioned combinations, plant height, spike height, spikelet number per spike, kernel number and kernel weight per spike and 1000-kernel weight were determined and the hybrid vigor was calculated. Positive and significant differences varying among the combinations were found in the F 1 plants with higher values than …
The Effects Of Some Leguminous Forage Crops Used As Green Manure And Plant Residues On Yield And Quality Of Maize And Sunflower Under Irrigated Conditions Of Çarsamba Plain, Mehmet Ari̇f Özyazici, İbrahi̇m Manga
The Effects Of Some Leguminous Forage Crops Used As Green Manure And Plant Residues On Yield And Quality Of Maize And Sunflower Under Irrigated Conditions Of Çarsamba Plain, Mehmet Ari̇f Özyazici, İbrahi̇m Manga
Turkish Journal of Agriculture and Forestry
This study was carried out to determine the green manure values of the most suitable forage legumes for growing as winter catch crops under irrigated conditions of Çarsamba Plain. The highest (maize and sunflower) grain yield grown as a summer main crop after green manuring were obtained from green manuring of whole plants of narbonne vetch and common vetch (in maize, 974.2 kg/da and 963.3 kg/da; in sunflower, 493.8 kg/da and 492.5 kg/da). These green manure plants increased the yield of maize 51.7 and 50.0 % and of sunflower 36.8 and 36.4 %, respectively. It was determined that these high …
The Determination Of Seed Yield And Yield Components In Some Bean (Ph. Vulgaris)Cultivars And Correlations Between These Characters Under The Çukurova Conditions, Adem Emi̇n Anlarsal, Celal Yüce, Derya Özveren
The Determination Of Seed Yield And Yield Components In Some Bean (Ph. Vulgaris)Cultivars And Correlations Between These Characters Under The Çukurova Conditions, Adem Emi̇n Anlarsal, Celal Yüce, Derya Özveren
Turkish Journal of Agriculture and Forestry
This research was conducted to determine suitable bean cultivars under Çukurova conditions, as well as to find out the correlations between seed yield and yield components. According to the experiment years' average, the seed yield of bean cultivars varied from 57.4 to119.6 kg/da and from 16.5 to 97.5 kg/da in dwarf and climbing beans respectively sehirali-90 and Yalova-5 in dwarf beans and Dermason-Malatya and Horoz-Tokat in climbing beans had the high seed yield in both experiment years. Positive correlation cofficients were found between seed yield and 100 seed number in dwarf beans. Also, there were positive correlation coefficients between seed …
A Study On The Determination Of The Marketing Margin And Manufacturing Cost Of Tulumcheese In Erzincan City, Vedat Dağdemi̇r
A Study On The Determination Of The Marketing Margin And Manufacturing Cost Of Tulumcheese In Erzincan City, Vedat Dağdemi̇r
Turkish Journal of Agriculture and Forestry
In this study, the marketing margin and production cost of 1 kg tulum cheese in Erzincan city were calculated. The data necessary for the study were obtained from a questionnaire filled in by 17 tulum cheese producers. Cheese manufacturing cost per kg was calculated as 485 962.8 TL on average. Market cost which was calculated by adding storage and transfer costs to the manufacturing cost was found to be 492 983.7 TL. 47.8%, 12.6%, 1.1%, 21.0%, and 17.5% of the cost paid by the consumer for 1 kg tulum cheese went to the farmer, other expenditures, income tax, the producer …
Estimation Of The Plant-Available Amounts Of N In Poultry Manure Dried With Fan Separator By ^15 N Trace Technique, Ahmet Korkmaz, Ridvan Kizilkaya, Ayhan Horuz, Abdülkadi̇r Sürücü
Estimation Of The Plant-Available Amounts Of N In Poultry Manure Dried With Fan Separator By ^15 N Trace Technique, Ahmet Korkmaz, Ridvan Kizilkaya, Ayhan Horuz, Abdülkadi̇r Sürücü
Turkish Journal of Agriculture and Forestry
In this pot experiment, poultry manure dried by Fan separator was applied at different rates N to see the effect of poul-try manure on the growth and total N uptake of corn and rice. Contribitions of poultry manure to A-values (available N) of soils, %NdfF (N-fertilizer), %NdfPM (poultry manure), nitrogen recovery percent of poultry manure and the quantity of poultry manure equivalent to 1 kg (NH 4 ) 2 SO 4 were determined by 15 N trace technique. The results are summarized as follows: 1. Increasing rates N of poultry manure significantly increased the amount of corn straw, rice grain+straw …
Effect Of The Skin Contact On The Aroma Composition Of The Must Of The White Emir Grape Variety, Ahmet Canbaş, Turgut Cabaroğlu
Effect Of The Skin Contact On The Aroma Composition Of The Must Of The White Emir Grape Variety, Ahmet Canbaş, Turgut Cabaroğlu
Turkish Journal of Agriculture and Forestry
The effect of the skin-contact on the composition of free and glycosidically bound aroma components of the must of Vitis vinifera cv. Emir was investigated. Aroma components were analysed by GC-MS. Seventeen free (3 six-carbon alcohols, 2 terpenols, 2 alcohols, 5 acids, 3 phenols, 2 C-13 norisoprenoids) and 30 bound aroma components (3 six-carbon alcohols, 4 terpenols, 5 alcohols, 5 acids, 9 phenols, 4 C-13 norisoprenoids) were identified. The skin-contact treatment increased amounts of free and glycosidically bound aroma components, potassium, total phenolic compounds and the browning index and the pH value, whereas it decreased the amount of total acidity.
Effects Of Boron On Growth Of Various Wheat Varieties And Distribution Of Boron In Aerial Part, Süleyman Taban, İbrahi̇m Erdal
Effects Of Boron On Growth Of Various Wheat Varieties And Distribution Of Boron In Aerial Part, Süleyman Taban, İbrahi̇m Erdal
Turkish Journal of Agriculture and Forestry
The aim of this project was to determine the effects of boron on growth and boron distribution in the aerial part of wheat cultivars. For this purpose, soil samples collected from Kenan Evren training and research farm at the Faculty of Agriculture was used. The soil was clay loam in texture, containing 12% lime, with a pH of 7.91 and 1.52 mg kg -1 plant available boron. In greenhouse conditions, four Triticum aestivum cultivars (Bolal-2973, Bezostaya, Kirac, Gerek-79) and two Triticum durumcultivars (Cakmak-79, Kiziltan-91) were grown with boron at levels of 0,1 and 10 mg kg -1 levels as boric …
Comparison Of Surface Soil Stabilization Methods In Situ, Oğuz Başkan, İlhami̇ Ünver, Ceyhan Tarakçioğlu
Comparison Of Surface Soil Stabilization Methods In Situ, Oğuz Başkan, İlhami̇ Ünver, Ceyhan Tarakçioğlu
Turkish Journal of Agriculture and Forestry
The effects of farmyard manure, tea waste, Portland cement, frisol, initial temporary transparent film cover, and fuel oil on soil stabilization were compared with the control soil on a tilled and loosened clay loam Fluvent soil in Ankara. Grass growth was observed in a two-year field experiment laid out as randomized-block experimental design with three replications, with monitoring of the changes pH in 0-40 cm depths, levels of percentage of water stable aggregates, penetration resistance (PR), infiltration, and moisture content. In addition, soil moisture retention characteristics (SMRC) curves were plotted, organic matter (OM) contents and hydraulic conductivities were determined at …
Effects Of Irrigation And Nitrogen Fertilization On Protein Yield Of Common Wheat (Triticum Aestivum L.), Mustafa Güler, Günal Akbay
Effects Of Irrigation And Nitrogen Fertilization On Protein Yield Of Common Wheat (Triticum Aestivum L.), Mustafa Güler, Günal Akbay
Turkish Journal of Agriculture and Forestry
This research was carried out at the Experimental Field of the Department of Agronomy and Kenan Evren Research and Application Farm, Faculty of Agriculture, Ankara University during 1993-1995 in order to determine the effects of different irrigation and nitrogen fertilizer applications on the grain protein yield of common wheat. Bezostaja 1, Gerek 79 and Gün 91 cultivars were used. 0 mm ( S 0 ), 20 mm ( S 1 ) and 40 mm ( S 2 ) irrigation applications and also 4 kg/da ( N 1 ), 6 kg/da ( N 2 ) and 8 kg/da ( N 3 …
Determination Of Fruit Growth And Development In Walnut, Yaşar Akça
Determination Of Fruit Growth And Development In Walnut, Yaşar Akça
Turkish Journal of Agriculture and Forestry
This study was conducted to determine nut growth and development in Sebin, Bilecik, 32B-18 and 170 B-16 walnut cultivars in 1997-1998. In the study, nut length, nut diameter, nut weight with hull, kernel weight, protein content of shell, kernel and hull, oil content of shell, ash content of shell, ash content of kernel and ash content of hull were determined in the period of fruit growth. The increase in the kernel weight was slower at the beginning of the growth period, while it was rapid between June and August. There was also a rapid development in the nut diameter and …
Effect To The Young Inflorescence Length On The Callus Formation And Plant Regeneration In Yellow Bluestem (Bothriochloa Ischaemmum (L.) Keng), Ersi̇n Can, Nafi̇z Çeli̇ktaş, Rüştü Hati̇poğlu
Effect To The Young Inflorescence Length On The Callus Formation And Plant Regeneration In Yellow Bluestem (Bothriochloa Ischaemmum (L.) Keng), Ersi̇n Can, Nafi̇z Çeli̇ktaş, Rüştü Hati̇poğlu
Turkish Journal of Agriculture and Forestry
This study was carried out to determine the effect of inflorescence length on callus induction and plant regeneration in yellow bluestem ( Bothriochloa ischaemum(L) Keng). Inflorescences with different lengths (2-25 mm) from the in vitro regenerated plants of a Bothriochloa - ecotype with a good response to in vitro culture were cultured on LS-medium with addition 8 mg/l dicamba. The results of the study showed that the rates of callus induction related to inflorescence length varied from 20.3% to 46.9%. The highest callus weight per inflorescence was obtained from the inflorescences with a length of 11-15 mm. Increasing the inflorescence …
Adaptation And Stability Analysis In Some Bread Wheat Genotypes, Şevket Meti̇n Kara
Adaptation And Stability Analysis In Some Bread Wheat Genotypes, Şevket Meti̇n Kara
Turkish Journal of Agriculture and Forestry
Genotype x environment interaction is a challenging issue to plant breeders in improving high-yielding, stable genotypes for variable environments. Several methods of measuring stability of genotypes tested across a range of environments have been proposed. The grain yields of fifteen bread wheat ( Triticum aestivumL.) genotypes grown at eight different locations were used to assess adaptation and stability characteristics of the genotypes and to study associations among these parameters. According to most of the parameters used in the present study, Kiraç 66, Es-kbvd-15 and Ank-92-1 appeared to have a good level of general adaptation to all environments. Mean yield was …
Exploring The Concept Of A Forest Landscape Management Paradigm, Emi̇n Zeki̇ Başkent, Haci̇ Ahmet Yolasiğmaz
Exploring The Concept Of A Forest Landscape Management Paradigm, Emi̇n Zeki̇ Başkent, Haci̇ Ahmet Yolasiğmaz
Turkish Journal of Agriculture and Forestry
The concept of forest management planning has rapidly progressed towards a more holistic approach in the last decade. Considering the whole landscape of ecosystems is the focus of landscape management. This paper examines the evolutionary process of forest management and compares and contrasts the landscape management planning concept to its predecessor, the conventional forest resource management approach. It explains the conceptual framework, provides the principles and the improvements over the conventional management planning, and discusses different approaches towards the landscape management concept. However, the paper stresses the fact that the evolutionary process of forest management provides the basis for what …
Characterization Of Some Regosols In The Bursa Plain, Cumhur Aydinalp
Characterization Of Some Regosols In The Bursa Plain, Cumhur Aydinalp
Turkish Journal of Agriculture and Forestry
In the Bursa plain, Regosols are extensively cultivated soils for horticultural crops and irrigated by water from aquifers. These soils are quite widespread on the west side of the plain and developed on different types of parent materials. This research was carried out to determinate genesis and classification of the Regosols developed on calcareous colluvium material. Five soil profiles were examined in this research and their characterization included field morphology and physico-chemical analysis. The soils were classified according to the systems of FAO/Unesco (1990), FitzPatrick (1988), and USDA Soil Taxonomy (1994). The soils show high sand and calcium carbonate contents …
Fermentation Of Glucose And Fructose By Leuconostoc Mesenteroides, Hüseyi̇n Erten
Fermentation Of Glucose And Fructose By Leuconostoc Mesenteroides, Hüseyi̇n Erten
Turkish Journal of Agriculture and Forestry
The preferred order of glucose and fructose uptake by Leuconostoc mesenteroides was investigated in Glucose Fructose Yeast Extract Amino Acid medium with and without the addition of salt under anaerobic conditions. Strains NCIMB 8023 and NCFB 811 preferentially utilised glucose over fructose. A higher biomass was obtained when employing strain NCIMB 8023 compared with strain NCFB 811. The strains studied produced lactate and ethanol as major end-products, with lactate synthesis being greater than ethanol. Small amounts of acetate and mannitol were also formed.
The Effects Of Vesicular-Arbuscular Mycorrhizae On The Plant Growth And Nutrient Uptake Of Cucumber, Si̇bel Çiğşar, Nebahat Sari, İbrahi̇m Ortaş
The Effects Of Vesicular-Arbuscular Mycorrhizae On The Plant Growth And Nutrient Uptake Of Cucumber, Si̇bel Çiğşar, Nebahat Sari, İbrahi̇m Ortaş
Turkish Journal of Agriculture and Forestry
This study was conducted to investigate the effect of vesicular-arbuscular (VA) mycorrhizae on plant growth of cucumber. Yayla F 1 seeds were sown in sterile and non-sterile growing medium (organic manure:soil:mix of sand; v:v:v 1:1:1). The mix inoculum of Glomus mosseaand Glomus fasciculatumspores (10 g/plant) was placed 5 cm below the cucumber seed before sowing. In order to investigate the effects of VA mycorrhizae on plant growth, plant height, diameter, number of nodes were measured every 15 days. Also once a month biomass, P, Zn and Mn content of dry matter biomass and mycorrhizal infection were also determined. The results …
The Effects Of Different Locations And Hormone Doses On The Rooting Of Cuttings Of Karabaş Lavender (Lavandula Stoechas L.) Grown In The Flora Of Hatay, Fi̇li̇z Ayanoğlu, Ahmet Mert, Durmuş Alpaslan Kaya
The Effects Of Different Locations And Hormone Doses On The Rooting Of Cuttings Of Karabaş Lavender (Lavandula Stoechas L.) Grown In The Flora Of Hatay, Fi̇li̇z Ayanoğlu, Ahmet Mert, Durmuş Alpaslan Kaya
Turkish Journal of Agriculture and Forestry
The intensive growing areas of Karabaş lavender were first determined in the province of Hatay. The rooting capabilities of the cuttings of Karabaş Lavender which were gathered from different locations, one (Işİklİ) on the coast of Mediterranean and the other one (Narlİca) near Antakya, were investigated. The cuttings were treated with 1 000, 2 000 and 4 000 ppm IBA doses and the cuttings with no IBA treatment were used as control. The effects of IBA on rooting were investigated. The rooting ratios of the cuttings gathered from Işİklİ were higher than those of the cuttings gathered from Narlİca. The …
Effects Of Va-Mycorrhiza On Growth And Phosphorus, Zinc, Iron, Copper And Manganese Concentrations Of Maize Grown In Acid And Alkaline Soils, Hesna Özcan, Süleyman Taban
Effects Of Va-Mycorrhiza On Growth And Phosphorus, Zinc, Iron, Copper And Manganese Concentrations Of Maize Grown In Acid And Alkaline Soils, Hesna Özcan, Süleyman Taban
Turkish Journal of Agriculture and Forestry
The aim of this study was to determine the effects of VA Mycorrhiza on P, Zn, Fe, Cu and Mn uptake by maize grown in alkaline and acid soils. For this purpose, maize was grown in sterilized alkaline and acid soils under greenhouse conditions by applying 100 \mug N g -1 (as urea) and 40 \mug K g -1 (as K 2 SO 4 ) as solution to the soils. 40 \mug P g -1 (as TSP) was added to the pots that P was applied to, and a mixture of Glomus etunicatumand Glomus intraradiceswas inoculated to the pots that …
Effects Of Humic Acid And Phosphorus Applications On Growth And Phosphorus Uptake Of Corn Plant (Zea Maysl.) Grown In A Calcareous Soil, İbrahi̇m Erdal, Mehmet Ali̇ Bozkurt, Keri̇m Mesut Çi̇mri̇n, Si̇yami̇ Karaca, Mustafa Sağlam
Effects Of Humic Acid And Phosphorus Applications On Growth And Phosphorus Uptake Of Corn Plant (Zea Maysl.) Grown In A Calcareous Soil, İbrahi̇m Erdal, Mehmet Ali̇ Bozkurt, Keri̇m Mesut Çi̇mri̇n, Si̇yami̇ Karaca, Mustafa Sağlam
Turkish Journal of Agriculture and Forestry
The aim of this study is to investigate the effects of different humic acid and phosphorus levels on corn plant ( Zea mays L.) growth and P availability in a calcareous soil. Four levels of P (0, 20, 40, 80 mgkg^{-1}) and 3 levels of humic acid (0, 250, 500 mgkg^{-1}) were used in the experiment. The results showed that the dry weight, plant P concentration, P uptake and residual available P amount increased with humic acid applications, and that the effect of humic acid on the above parameters combined with P fertilisation was higher than that of humic acid …
The Effect Of Seed Size And Nitrogen On Root And Shoots In The First Development Stage Of Barley, Fahri̇ Sönmez
The Effect Of Seed Size And Nitrogen On Root And Shoots In The First Development Stage Of Barley, Fahri̇ Sönmez
Turkish Journal of Agriculture and Forestry
This research was conducted to determine the effects of seed size and nitrogen fertilization on seedling growth of barley cultivars Angora and Cumhuriyet-50 at Çanakkale Onsekiz Mart University, Faculty of Agriculture in 1997. According to results of the research, there were significiant differences between Angora and Cumhuriyet-50 cultivars for seedling length (in field research), leaf number, dry weight of above-soil surface organs, and root/dry weight ratio of above-soil surface organs. Seed size significiantly affected seedling length (in pot research), leaf number (in pot research), dry weight of above soil surface organs and root-dry weight, and large seeds produced heavier seedlings. …
The Effect Of Planting Density On Yield Quality And Productive Energy Consumption For Lighting In Gypsophila Growing, Osman Karagüzel, Veli̇ Ortaçeşme
The Effect Of Planting Density On Yield Quality And Productive Energy Consumption For Lighting In Gypsophila Growing, Osman Karagüzel, Veli̇ Ortaçeşme
Turkish Journal of Agriculture and Forestry
This study was carried out to determine the effect of planting density on yield, quality and productive energy consumption for photoperiodic lighting in Gypsophila paniculataL.'Perfecta' growing under unheated plastic greenhouse conditions for 4 cropping seasons, at the Horticultural Research Institute (Erdemli, İçel-Turkey), during 1992-1994. In the study, planting densities at 6.80 plants/m 2 , 3.03 plants/m 2 and 1.70 plants/m 2 with 40, 60 and 80 cm triangle planting systems, and planting density at 1.67 plants/m 2 with 100x60 cm planting system were used. The results showed that with decreasing planting density, the number of flowered shoots and flowered shoot …
Isosteric Sorption Heat Determination For Some Starchy Grains, Serdar Özteki̇n, Yurtsever Soysal
Isosteric Sorption Heat Determination For Some Starchy Grains, Serdar Özteki̇n, Yurtsever Soysal
Turkish Journal of Agriculture and Forestry
InIn this study, isosteric sorption heat for 8 different starchy grains was determined by the application of the Clausius- Clapeyron equation to sorption isotherms. The latent heat of vaporisation of free water was not significantly different from the isosteric sorption heats of barley, durum wheat, oats, sorghum (31) and sorghum above 14% d.b. moisture content. There was no significant difference among the latent heat of vaporisation of free water and isosteric sorption heats of soft wheat, hard wheat and wheat (Waldron) above the 17% moisture content. Isosteric sorption heat of soft wheat was calculated to be 3341.5 kJ kg -1 …
Determining The Efficiency Of Forward-Sloped Bench Terraces On Soil Conservation: The Case Of The Aydın-Bozdoğan-Alamut Terracing Area, Alaetti̇n Taysun, Hali̇l Baki̇ Ünal, Altan Şahi̇n, Hasan Zafer Vurgun
Determining The Efficiency Of Forward-Sloped Bench Terraces On Soil Conservation: The Case Of The Aydın-Bozdoğan-Alamut Terracing Area, Alaetti̇n Taysun, Hali̇l Baki̇ Ünal, Altan Şahi̇n, Hasan Zafer Vurgun
Turkish Journal of Agriculture and Forestry
The study was carried out to determine the efficiency of forward-sloped bench terraces on soil conservation in the Aydın- Bozdoğan-Alamut terracing area. For this purpose, the shape specifications, and physical and chemical properties of the soil that belong to the sample terraces in the project area were determined and the factors of K and LS that are needed for calculating soil losses were are found through the Universal Soil Losses Equation. According to the evaluation, especially the determined factors of K and LS were higher for the sample terraces interfered with by farmers and this result shows that the probable …
A Study On The Determination Of Erodibilities Of The Sloping Agricultural Soils In The City Of Bursa And Vicinity Against Water Erosion In Laboratory Conditions, Zeynal Tümsavaş, A. Vahap Katkat
A Study On The Determination Of Erodibilities Of The Sloping Agricultural Soils In The City Of Bursa And Vicinity Against Water Erosion In Laboratory Conditions, Zeynal Tümsavaş, A. Vahap Katkat
Turkish Journal of Agriculture and Forestry
The aim of this research was to determine the relationships between runoff, soil loss and soil properties and the erodibilities of soils. For this purpose, soil samples were taken in the city of Bursa and vicinity from sloping agricultural lands belonging to the major soil groups: Red Brown Medditernean, Brown Forest, Noncalcareous Brown Forest and Rendzina. This study was carried out in laboratory conditions. Soil samples were used after sieving with 8 mm sieves, and taken from tillage depth from 68 different places in the research area. The samples were put into plots sized 50 x 100 x 15 cm. …
Effect Of Regional Different N-Fertilizer Applications On Nitrate Accumulation In Wintervegetables Grown On Tokat Region, M. Rüştü Karaman, Abdülreşi̇t Brahi̇, Aydin Güneş, Ali̇ İnal, Mehmet Alpaslan
Effect Of Regional Different N-Fertilizer Applications On Nitrate Accumulation In Wintervegetables Grown On Tokat Region, M. Rüştü Karaman, Abdülreşi̇t Brahi̇, Aydin Güneş, Ali̇ İnal, Mehmet Alpaslan
Turkish Journal of Agriculture and Forestry
The main object of this study was to observe the effect of regional N-fertilizer applications on the nitrate accumulation of some winter vegetables grown on farmer's fields located at different parts of the Tokat region. For this reason, leaf samples of some winter vegetables, namely spinach, cabbage, leek and lettuce collected from each field were analysed for nitrate, and the soil samples taken from a depth of 0-20 cm depth of each sampling field were analysed for nitrate content and texture. According to the results of this study, different nitrate levels (910-2360 mg/kg in spinach, 945-1785 mg/kg in cabbage, 750-1947 …
An Operations Research Application In The Particleboard Industry, Selman Karayilmazlar, Erdal Balaban
An Operations Research Application In The Particleboard Industry, Selman Karayilmazlar, Erdal Balaban
Turkish Journal of Agriculture and Forestry
In this study, a model was used for the optimization of product mix (the amounts of each product in the mixture) in particleboard industry by using linear programming. A theoretical model was constructed in which operations research methods and linear programming were applied to the maximization of the profit of a particleboard mill (KÖYKOBİR) as the consumer of industrial wood. To this end, 1993-1994-1995-1996 production, sales, stock quantities and costs as well as data related to capacities of the chipping, drying, pressing, sanding and gluing units were processed. Moreover, processing times of every product at these units were calculated. The …
Investigations On The Performance Of Some Strawberry Cultivars (Fragaria X Ananassaduch.) Grownin Open Fields And Under High Tunnel Conditions, Kubi̇lay Önal
Turkish Journal of Agriculture and Forestry
Five strawberry cultivars were grown as frigo seedlings planted in July by using two management systems, open grow-ing and high tunnel, in 1996 and 1997. Yield, earliness and some quality characters were observed. The high tunnel system made the crop 2-3 weeks earlier than the open field system with a longer period. Yield was also high in the high tunnel system with 1053 grams per plant while it was 877 grams in open growing. Miranda was the highest yielding cultivar in both management systems. Cultivars Camarosa and Miranda were superior for fruit weight and the rate of high quality.
The Effects Of Spiral Grain On Some Mechanical Properties Of Calabrian Pine (Pinus Brutia Ten.) Wood., Yener Göker, Nusret As, Turgay Akbulut, Türker Dündar
The Effects Of Spiral Grain On Some Mechanical Properties Of Calabrian Pine (Pinus Brutia Ten.) Wood., Yener Göker, Nusret As, Turgay Akbulut, Türker Dündar
Turkish Journal of Agriculture and Forestry
The effects of spiral grain on some mechanical properties of Calabrian pine wood were studied. For this purpose, 17 sample trees were taken from Çakirlar region, Antalya district. The experimental trees were classifed into five groups according to the values of spiral grain angles as follows: 0- 5 % , 5-10 % , 10-15 %, 15-20 %, and > 20 %. No difference was found in bending strength and modulus of elasticity, up to 10 and 15 % spiral grain degrees, respectively. A spiral grain of 20 % or higher can be permitted in compression stresses. If wood has a spiral …