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Determination Of Yield And Quality In Marjoram As Influenced By Development Periods, Menşure Özgüven, Sezen Tansi Jan 1999

Determination Of Yield And Quality In Marjoram As Influenced By Development Periods, Menşure Özgüven, Sezen Tansi

Turkish Journal of Agriculture and Forestry

Marjoram, naturally grown in Mediterranean region, is a perennial shrub. It is used as spices, and its essential oil has also antimicrobial and antibacterial properties. Marjoram is well-adapted to Çukurova conditions, so, the highest fresh (1077.2 kg/da) and dried herba yields (492.9 kg/da) and essential oil yield (7.77 l/da) were obtained at post-flowering stages. The determined main components of its oil were \gamma-terpinen, p-cymol and terpineol. The contents of geraniol, p-cymol and cineol were found to be influenced by only development stages while sabinen, myrcen, borneol, terpineol, thymol and carvacrol contents were influenced by both development stages and experiment years.


Economic Analysis Of Fores Enterprises By The Use Of The Multivariata Satististical Analysis (The Sample Of 25 State Fores Enterprises In The Eastern Black Sea Region), Mustafa Fehmi̇ Türker, Eyüp Sabri̇ Türker Jan 1999

Economic Analysis Of Fores Enterprises By The Use Of The Multivariata Satististical Analysis (The Sample Of 25 State Fores Enterprises In The Eastern Black Sea Region), Mustafa Fehmi̇ Türker, Eyüp Sabri̇ Türker

Turkish Journal of Agriculture and Forestry

The national economy is consisted of several enterprises that depend on different sectors. In our country, the most impoırtant part of economic activities in forestry sector focuses on forest enterprises. In order to improve economic role of forestry sector both in regional and countrywide, these enterprises should be managed with respect to economic rules. In this research, a socio-economic structure consisted of 11 economic variables obtained from forest enterprises and 25 individuals (Forest Enterprises) is examined by the use of principal companent analysis. The Eastern Black Sea Region consisted of 25 forest enterprises was chosen as a study area. The …


Thermal Conductivity Coefficients Of Wood And Wood-Based Materials, Yalçin Örs, Ahmet Şenel Jan 1999

Thermal Conductivity Coefficients Of Wood And Wood-Based Materials, Yalçin Örs, Ahmet Şenel

Turkish Journal of Agriculture and Forestry

Determination of the thermal conductivity coefficient of wooden material is needed in many fields of application. It this study, the thermal conductivity coefficients of the woods of cedrus (cedrus libani a.Richard), fir (Abies cornmulleriana Mattf.), Populus nigra (Populus tremula L.), and beech (Fagus orientalis lipsky), the wooden materials most widely used in our country in furniture, decoration and construction have been determined in 12% moisture and saturated conditions for the different directions (fiber direction, tangent and radial to annual aging circles) and for two different thicknesses of flat pressed and vertical pressed particleboards and several thicknesses of Medium Density Fiberboards …


The Effect Of Bleaching Conditions On The Physical And Optical Properties During The Bleaching Of Ctmp With Peroxide, Mustafa Usta, Ahmet Tutuş Jan 1999

The Effect Of Bleaching Conditions On The Physical And Optical Properties During The Bleaching Of Ctmp With Peroxide, Mustafa Usta, Ahmet Tutuş

Turkish Journal of Agriculture and Forestry

In order to determine the effect of bleaching conditions on the physical and optical properties of pulps during the bleaching of CTMP with H_2O_2, 48 bleaching trials were carried out. After the analysis of the data obtained, the optimum bleaching conditions were as follows: H_2O_2 ratio 2.5-3%, Na_2SiO_3 ratio 3%, NaOH ratio 3%, NaOH/H_2O_2 ratio 0.75, MgSO_4 rate 0.5%, reaction temperature 70ºC, EDTA rate 0.5%, reaction time 80 minutes and concentration 16%. Brightness, breaking length, burst and tear index of CTMP bleached with H_2O_2 were found to be 51.42%, 18.03%, 92.50% and 13.20% respectively, higher than those of unbleached CTMP.


Effect Of Fallow, Winter Lentil, Nitrogen Fertilization And Different Soil Tillage On Wheat Yield In The Dryfarming Areas Of Central Anatolia, Di̇dar Eser, M. Sai̇t Adak, Andreas Biesantz Jan 1999

Effect Of Fallow, Winter Lentil, Nitrogen Fertilization And Different Soil Tillage On Wheat Yield In The Dryfarming Areas Of Central Anatolia, Di̇dar Eser, M. Sai̇t Adak, Andreas Biesantz

Turkish Journal of Agriculture and Forestry

This research was carried out in two different dryfarming areas of Central Anatolia (Haymana-Ankara and Gözlü-Konya) to detect the effect of fallow and winter lentil and different tillage systems on wheat yields. According to experimental results of two crop rotation cycles, wheat yields after fallow or after lentil respectively, were in the same statistical group (i.e. no significant difference), in spite of a neglectible reduction of yield after lentil in comparison to wheat yield after fallow in Haymana. In this case it could be proved that sowing of winter lentil was more profitable instead of implementing fallow before wheat. In …


Sensitivity Of Various Maize (Zea Mays L. Cvs.) Varieties To Salinity, Süleyman Taban, Aydin Güneş, Mehmet Alpaslan, Hesna Özcan Jan 1999

Sensitivity Of Various Maize (Zea Mays L. Cvs.) Varieties To Salinity, Süleyman Taban, Aydin Güneş, Mehmet Alpaslan, Hesna Özcan

Turkish Journal of Agriculture and Forestry

The salinity resistance of eight maize varieties (Riogrande, PostKLF, Postkontrol, Alkantara, G-4662 Dracma, Tarım, Fanion and Kelty), which are cultivated widely in Turkey, was investigated. For this purpose, experimental soil was salinized with 68 mmol/kg NaCl. The salinity responses of the maize varieties were compared by means of various plant parameters. According to the results, Kelty, Post-KLF, Postkontrol and G-4662 Dracma were seen to be more susceptible to salinity than the others. Under salinity stress, the dry matter yield of those varieties was influenced much less than the others and the Na and Cl content was generally found to be …


Determination Of Monthly Areal Rainfall Depths Using Geostatistical Techniques In The Eastern Mediterranean Region And Stochastic Modeling, Mahmut Çeti̇n, Fati̇h Topaloğlu, Kazim Tülücü Jan 1999

Determination Of Monthly Areal Rainfall Depths Using Geostatistical Techniques In The Eastern Mediterranean Region And Stochastic Modeling, Mahmut Çeti̇n, Fati̇h Topaloğlu, Kazim Tülücü

Turkish Journal of Agriculture and Forestry

The purpose of this study was to generate monthly areal rainfall depths in the Tarsus Plain using geostatistical techniques, and to determine the stochastic structure of areal rainfall series generated geostatistically. Data were obtained from rainfall observation stations located in the eastern Mediterranean region and the surrounding areas. Monthly spatial dependence structures of rainfall depths at the observed points were depicted using a spherical semivariogram model. The areal rainfall series was estimated using block kriging procedure. The trend, periodic and stochastic components of that series were tested statistically and modeled stochastically. Monthly areal rainfall depth-recurrence interval curves were developed for …


Volume Equations And Volume Tables For Black Pine In Taşköprü, Hakki Yavuz Jan 1999

Volume Equations And Volume Tables For Black Pine In Taşköprü, Hakki Yavuz

Turkish Journal of Agriculture and Forestry

In this study, single, double and multiple-entry tree volume equations were constructed according to six performance criteria (average residuals or bias, average absolute residuals, standard deviation of residuals or presicion, coefficient of determination, percent total error and percent absolute mean error) for black pine (Pinus nigra Arn. Subs. Pallasiana) in Taşköprü Forest District. The results indicate that the best volume equations chosen from each equation systems can be used for black pine in Taşköprü Forest District at the 0.05 significant level.


Effect Of Phosphorus Fertilizers And Application Methods On The Yield Of Wheat Grown Under Dryland Conditions, Sabri̇ Gökmen, Özer Sencar Jan 1999

Effect Of Phosphorus Fertilizers And Application Methods On The Yield Of Wheat Grown Under Dryland Conditions, Sabri̇ Gökmen, Özer Sencar

Turkish Journal of Agriculture and Forestry

This study was conducted to investigate the efficiency of diammonium phosphate (DAP) and triple superphosphate (TSP) as phosphorus (P) sources and the effect of fertilizer application methods on the grain yield, yield components and other characteristics of winter wheat. The research was conducted in the ecological conditions of Tokat-Kazova during the 1990-1991 and 1991-1992 growing seasons. Bezostaja-I and Kirkpinar-79 cultivars were used as the plant materials. DAP and TSP fertilizers were applied according to four different methods, i. e., broadcasting, with seed, application 5 cm to the right and left of the seed and 5 cm below the seed. The …


Development And Fecundity Of Aphis Gossypii Glover (Homoptera: Aphididae) On Three Malvaceae Hosts, Serdar Satar, Ulrich Kersting, Nedi̇m Uygun Jan 1999

Development And Fecundity Of Aphis Gossypii Glover (Homoptera: Aphididae) On Three Malvaceae Hosts, Serdar Satar, Ulrich Kersting, Nedi̇m Uygun

Turkish Journal of Agriculture and Forestry

Aphis gossypii Glover (Homoptera, Aphididae) obtained from cotton fields near Adana in the east Mediterranean region of Turkey were colonized on Gossypium hirsutumL. ‘Çukurova 1518’ in a climatic room. The effect of host transfer from cotton to common mallow, Malva sylvestris L., and okra, Abelmoschus esculentus (L.) Moench 'Bamya 501', on performance of A. gossypii was studied at constant 25 ± 1°C, 60 ± 5 % relative humidity and 16 h of artificial light (5000 lux) in temperature cabinets. Three subsequent generations of A. gossypii from cotton were additionally tested on okra. Fecundity tables were constructed to compare the performance …


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.


The Effect Of Cutting On The Yield And Yield Components Of Bread Wheat (Triticum Aestivum L.) Cultivars, A. Esen Çelen, Hi̇kmet Soya Jan 1999

The Effect Of Cutting On The Yield And Yield Components Of Bread Wheat (Triticum Aestivum L.) Cultivars, A. Esen Çelen, Hi̇kmet Soya

Turkish Journal of Agriculture and Forestry

In the research conducted in the fields of Field Crops Department of Faculty of Agriculture of Ege University, Bornova, İzmir, Turkey in 1993-94 and 1994-95, the effects of cutting treatments [a. uncut control, b. cutting at Zadoks stage 25 (main stem and 5 tillers), c. cutting at Zadoks stage 30 (at the end of tillering, pseudostem erection), and d. cutting at Zadoks stage 31 (first node detectable) ] on the seed yield and some yield components of two bread wheat cultivars (Cumhuriyet-75 and Menemen-88) were investigated. There weren't significant differences on the spike numbers per square meter, seed numbers per …


The Relationships Among Grain Yield And Some Yield Components In Tir Wheat, Fahri Sönmez, Mehmet Ülker, Nuri Yilmaz, Hatice Ege, Betül Bürün, Rüstem Apak Jan 1999

The Relationships Among Grain Yield And Some Yield Components In Tir Wheat, Fahri Sönmez, Mehmet Ülker, Nuri Yilmaz, Hatice Ege, Betül Bürün, Rüstem Apak

Turkish Journal of Agriculture and Forestry

Field experiments were conducted in 1994 and 1995 in Van in order to study the relationships between grain yield and yield componets, and the interrelationships among these yield components and other characteristics in Tir wheat. In this research, heading duration, the number of spikes per m 2 , grain filling period, the number of grain per spike, grain weight, and grain yield were studied. Direct and indirect effects of the yield components (the number of spikes per m 2 , the number of grain per spike, and grain weight) on grain yield were found by Path coefficient analysis. Direct and …


Effect Of Salinity On Phosphorus Induced Zinc Deficency In Pepper ( Capsicum Annuuml.) Plants, Aydin Güneş, Ali̇ İnal, Mehmet Alpaslan, Yakup Çikili Jan 1999

Effect Of Salinity On Phosphorus Induced Zinc Deficency In Pepper ( Capsicum Annuuml.) Plants, Aydin Güneş, Ali̇ İnal, Mehmet Alpaslan, Yakup Çikili

Turkish Journal of Agriculture and Forestry

The combined effects of NaCl salinity and increasing rates of P on the Zn nutrition of pepper were studied. The applied P increased fruit yield in the absence of salinity, but decreased it in the presence of salinity. Fresh and dry weights of the plants were increased by the applied P and decreased by salinity. Both salinity and increasing levels of P (except 300 mg kg -1 ) decreased the Zn concentrations and Zn uptake of the plants. Zinc deficiency symptoms were observed at P levels of 300 and 500 mg kg -1 , a result which was more pronounced …


The Effects Of Different Preservation Chemicals And Finishing On Wood Combustion Properties In Pinus Sylvestrisl. And Castanea Sativa Mill., Yalçin Örs, Musa Atar, Hüseyi̇n Peker Jan 1999

The Effects Of Different Preservation Chemicals And Finishing On Wood Combustion Properties In Pinus Sylvestrisl. And Castanea Sativa Mill., Yalçin Örs, Musa Atar, Hüseyi̇n Peker

Turkish Journal of Agriculture and Forestry

In this study, changes in combustion properties in solid wood treated with different chemicals and varnishes were investigated. Wood samples prepared from Scotch pine ( Pinus sylvestris L.) and chestnut ( Castanea sativa Mill.) were impregnated with tanalith-CBC, water repellent (WR) solutions + synthetic varnish and WR + polyurethane varnish. Afterwards, synthetic and polyurethane varnishes were applied to the surfaces. Varnishing had the initial effect of fire retardation in both Scotch pine and chestnut impregnated with tanalith-CBS. Loss of weight was found to be 20% in chestnut samples and 13% in Scotch pine samples. However, varnishes did not affect combustion …


A Study On The Nutrient Status Of Starking Delicious Apple Cultivar Grown In Erzincan Plain, Muharrem Güleryüz, Sezai̇ Erci̇şli̇, Serdar Bi̇len Jan 1999

A Study On The Nutrient Status Of Starking Delicious Apple Cultivar Grown In Erzincan Plain, Muharrem Güleryüz, Sezai̇ Erci̇şli̇, Serdar Bi̇len

Turkish Journal of Agriculture and Forestry

This research was carried in 1993 and1994, in order to determine the nutritional status of the orchards established with S.Delicious apple cultivar in Erzincan plain. In this research, 20 apple orchards was selected and soil and leaf samples taken from the orchards in August. According to the analysis, at the experimental site's soils, pH ranged from 7.38 to 7.95, lime ranged from 0.89 to 13.05%; organic matter 0.24 to 3.07%; P ranged from 1.1 to 25.00 ppm; K ranged from 61 to 731 ppm; Zn ranged from 1.2 to 3.6 ppm and Mn ranged from 3.9-15.0 ppm. The soils generally …


Effect Of Iron And Zinc Applications On Growth And On Concentration Of Mineral Nutrients Of Bean (Phaseolus Vulgaris L.) Grown In Artificial Siltation Soils, M. Rüştü Karaman, A. Reşi̇t Brohi̇, Ali̇ İnal, Süleyman Taban Jan 1999

Effect Of Iron And Zinc Applications On Growth And On Concentration Of Mineral Nutrients Of Bean (Phaseolus Vulgaris L.) Grown In Artificial Siltation Soils, M. Rüştü Karaman, A. Reşi̇t Brohi̇, Ali̇ İnal, Süleyman Taban

Turkish Journal of Agriculture and Forestry

The study was carried out in greenhouse conditions by growing the Yalova field bean variety (Phaseolus vulgaris L.) with different iron (Fe) and zinc (Zn) applications in an alluvial soil which was collected from the artificial siltation area (0-20 cm depth) of the Kelkit River in Niksar-Tokat. A colluvial soil was also used for comparison. Iron was applied at 0, 10 and 20 ppm Fe in the forms Fe-EDDHA, FeSO_4.7H_2O and Fe-EDDHA + FeSO_4.7H_2O (1:1 ratio). Zinc was applied at 0, 10 and 20 ppm Zn in the form ZnCl_2. The plants were harvested after six weeks of growth in …


A Study Of Some Agronomical Characteristics Of Synthetic Varieties Obtained From Inbred Lines Of Sunflower (Helianthus Annuus L.), Abdurrahi̇m Tanju Göksoy Jan 1999

A Study Of Some Agronomical Characteristics Of Synthetic Varieties Obtained From Inbred Lines Of Sunflower (Helianthus Annuus L.), Abdurrahi̇m Tanju Göksoy

Turkish Journal of Agriculture and Forestry

Some agronomical characteristics of newly improved synthetic sunflower varieties were investigated during the years 1994 and 1995 at Uludağ University, in the Faculty of Agriculture, Field-Crops Department. 12 inbred lines considered suitable for combination were separated into three different mixtures producing the synthetic lines Syn-O(A), Syn-O(B) and Syn-O(C), each containing 4 different inbred lines. Synthetic 1(A), Synthetic-1(B) and Synthetic-1(C) were obtained from open pollination of these 3 mixtures of synthetic lines in the first year of research. In addition, Synthetic-1(D) was formed by open pollination of all the inbred lines (Syn-O(D)). In the second year, four synthetic varieties, four different …


Landscape Management And Biodiversity, Emi̇n Zeki̇ Başkent Jan 1999

Landscape Management And Biodiversity, Emi̇n Zeki̇ Başkent

Turkish Journal of Agriculture and Forestry

For the protection, enhancement and management of forests for today's and future generations, an understanding of the spatial structure of forest ecosystems along with base forest management planning are necessary. In this study are presented an introduction, a description, an explanation of different approaches and the basic principles of landscape management or ecosystems management within the evolution of the forest management process. Furthermore, the issue of biodiversity or biological diversity, one of the most important factors influencing the flourishing of landscape management, is described, its basic components are presented and its effects on management planning are discussed. It is concluded …


Morphological Studies Of 2+0 Anatolian Black Pine Stocks Grown In Eskişehir, Eğirdir And Seydişehir Forest Nurseries, Musa Genç, Ş. Teoman Güner, Ahmet Şahan Jan 1999

Morphological Studies Of 2+0 Anatolian Black Pine Stocks Grown In Eskişehir, Eğirdir And Seydişehir Forest Nurseries, Musa Genç, Ş. Teoman Güner, Ahmet Şahan

Turkish Journal of Agriculture and Forestry

Two year-old nursery stocks of Anatolian black pine (Pinus nigra Arnold subsp. pallasiana (Lamb.) Holmboe) from nine provenances were examined for morphological properties such as height, root collar diameter, sturdiness and shoot: root ratio. The stocks were grown in the Eskişehir, Eğirdir and Seydişehir forest nurseries in semi-arid sites in Turkey. It was found that all of the seedlings grown in Eğirdir were substandard but, the ones grown in Eskişehir and Seydişehir met the criteria of the Turkish Standards Institute (TS 2265 / February 1988). According to the seedling quality criteria of the Eurepean Community (EC), while all of the …


A Comparative Study Of Physicochemical And Organoleptic Qualities Of Flavoured Yogurts Made From Cow's And Goat's Milk And Stored For 15 Days, Serdar Akin, Ati̇lla Konar Jan 1999

A Comparative Study Of Physicochemical And Organoleptic Qualities Of Flavoured Yogurts Made From Cow's And Goat's Milk And Stored For 15 Days, Serdar Akin, Ati̇lla Konar

Turkish Journal of Agriculture and Forestry

The effects of 2 different types of milk (cow's and goat's milk), 4 types of flavouring (coffee, strawberry, cherry and peach) and 15 days of storage on the physical, chemical and organoleptic qualities of flavoured yogurts were investigated and the results summarised below. The results of the analysis indicate that different types of milk and flavouring had statistically significant effects (p


Determination Of The Alkalinity Of Tokat-Kazova Soils, Kadi̇r Saltali, M. Rifat Deri̇ci̇ Jan 1999

Determination Of The Alkalinity Of Tokat-Kazova Soils, Kadi̇r Saltali, M. Rifat Deri̇ci̇

Turkish Journal of Agriculture and Forestry

This research was conducted in order to determine the alkalinity of soils in Kazova and the Kg values which are an indicator of alkalinity. Twenty-four soil profiles were studied for this purpose. None of these profiles exhibited any alkalinity problem for 0-15 cm soil depths (except profile A_3). However, 3 profiles exhibited an alkalinity problem for 15-30 cm, 12 profiles for 30-60 cm, 11 profiles for 60-90 cm, and 6 profiles for 90-120 cm depths. The ESP values calculated for 30-60 cm were highest, followed by those for 60-90, 90-120, 15-30, 0-15 cm in decreasing order. The Gapon Coefficient (Kg), …


Effect Of Some Preservation Chemicals On The Density Of Scoth Pine And Oriental Beech Woods, Yalçin Örs, Musa Atar, Hüseyi̇n Peker Jan 1999

Effect Of Some Preservation Chemicals On The Density Of Scoth Pine And Oriental Beech Woods, Yalçin Örs, Musa Atar, Hüseyi̇n Peker

Turkish Journal of Agriculture and Forestry

This study was designed to determine the effect of impregnation with some chemicals on the density of wooden materials. For this reason, experimentals were prepared from Scotch pine and Oriental beech woods and impregnated with polyethylene glycole (PEG-400), ammonium per sulphate (AS), vacsol (V), and also water-repellent (WR), such as stryne, methylemetacrylate and isocynate according to ASTM-D 1413-76 It was found that, after impragnation process oriental beech wood dried in air was the most dense material when ıt is individually used with styrene and MMA, whereas Scotch pine wood was the most dense when it is used with water-repellent (WR) …


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Botany

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Botany

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Botany

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.


Testicular Ultrasound And Biopsy Findings Incases Of Acute Lymphoblastic Leukemia, Ertan Kayseri̇li̇, Pami̇r Gülez, Sertaç Sözer Arslanoğlu, Canan Vergi̇n, Füsun Atlihan, Ragip Ortaç, Nazahat Argon, İrfan Karaca Jan 1999

Testicular Ultrasound And Biopsy Findings Incases Of Acute Lymphoblastic Leukemia, Ertan Kayseri̇li̇, Pami̇r Gülez, Sertaç Sözer Arslanoğlu, Canan Vergi̇n, Füsun Atlihan, Ragip Ortaç, Nazahat Argon, İrfan Karaca

Turkish Journal of Medical Sciences

No abstract provided.


A Combined Variation In The Gluteal Region, Zeli̇ha Kurtoğlu, M. Haluk Uluutku Jan 1999

A Combined Variation In The Gluteal Region, Zeli̇ha Kurtoğlu, M. Haluk Uluutku

Turkish Journal of Medical Sciences

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Medical Sciences

No abstract provided.