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The Response Of Sunflower Grain Yield To Water, Abdullah Kadayifçi, Osman Yildirim Jan 2000

The Response Of Sunflower Grain Yield To Water, Abdullah Kadayifçi, Osman Yildirim

Turkish Journal of Agriculture and Forestry

The main aims of this study were to obtain grain and oil yields of sunflower ( Helianthus annuus L.) under adequate and limited soil water supply during the total growing season and under limited soil water supply at the early vegetative, late vegetative, vegetative, flowering and yield formation periods, to find out the sensitive periods to soil water deficits, and to determine yield response factors (k y ). The experiments were conducted in the fields of the Research Farm of the Agricultural Faculty, Ankara University, in 1994 and 1995. It was found that the highest grain and oil yields were …


The Effects Of Irrigation Water Salinity And Irrigation Water Amounts On Yield And Total Mineral Residues Of Broccoli ( Brassica Oleracea Botrytis), Engi̇n Yurtseven, H. Yonca Baran Jan 2000

The Effects Of Irrigation Water Salinity And Irrigation Water Amounts On Yield And Total Mineral Residues Of Broccoli ( Brassica Oleracea Botrytis), Engi̇n Yurtseven, H. Yonca Baran

Turkish Journal of Agriculture and Forestry

In this greenhouse study, the effects of irrigation water salinity in relation with the amounts of irrigation water on broccoli yields and mineral contents were investigated. For this purpose, five salinity levels (EC i =0.25-control, 1, 3, 6 and 9 dS/m) and 3 amounts of water (80, 100 and 120% of required water)were used in a factorial experiment in a completely randomized design with 3 replications. The fresh yields, biomass and total ash contents were determined and evaluated. While the yields were affected by both salinity and irrigation water levels, the biomass and total ash contents were affected only by …


Cover And Contents Jan 2000

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.


Exploring The Concept Of A Forest Landscape Management Paradigm, Emi̇n Zeki̇ Başkent, Haci̇ Ahmet Yolasiğmaz Jan 2000

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 …


Comparison Of The Swelling And Shrinkage Characteristics Of Corcisan Pine (Pinus Nigra Var. Mantima), İlker Usta, Ari̇f Güray Jan 2000

Comparison Of The Swelling And Shrinkage Characteristics Of Corcisan Pine (Pinus Nigra Var. Mantima), İlker Usta, Ari̇f Güray

Turkish Journal of Agriculture and Forestry

The objective of this study was to determine the volumetric swelling and shrinkage characteristics of air-dried Corsican pine in the longitudinal, tangential and radial directions. For this purpose, the swelling of the wood was caused by the wood being increased in water whilst placed in a swelling jig, and the shrinkage made in an oven by drying. The experimental results showed that although the differences in swelling or shrinking occur in the first 5 hours, both swelling and shrinkage are then negligible in the three directions. The values of swelling-shrinkage showed considerable difference among different directions; for instance, swelling-shrinkage in …


Fermentation Of Glucose And Fructose By Leuconostoc Mesenteroides, Hüseyi̇n Erten Jan 2000

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.


Cover And Contents Jan 2000

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.


Cover And Contents Jan 2000

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2000

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Simple Production And Purification Of Monoclonalantibodies In Serum-Free Medium, Aynur Başalp, Beyazit Çirakoğlu, Engin Bermek Jan 2000

Simple Production And Purification Of Monoclonalantibodies In Serum-Free Medium, Aynur Başalp, Beyazit Çirakoğlu, Engin Bermek

Turkish Journal of Biology

Although serum is a main source of essential nutrients and growth factors, its use creates highly complex and poorly defined media. The use of serum-free media is more efficient than the use of media containing serum especially when the purification and characterization of antibodies are considered. In this study, we developed a serum-free medium system for cultivation of hybrid cells producing monoclonal antibodies specific for Tobacco Mosaic Virus (1F5) and 17\beta-estradiol (10F4) (15D4). Cells were cultivated in a medium with 10 % FCS for three days, and subsequently in serum-free medium for two days. The procedure was repeated once again …


Cover And Contents Jan 2000

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2000

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2000

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2000

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Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 2000

Cover And Contents

Turkish Journal of Biology

No abstract provided.


The Accumulation And Histological Effects Of Theorganometallic Fungicide Propineb On The Organsof Fetuses And Female Rats During Pregnancy, Kemal Güven, Engi̇n Deveci̇, Davi̇d De Pomerai Jan 1999

The Accumulation And Histological Effects Of Theorganometallic Fungicide Propineb On The Organsof Fetuses And Female Rats During Pregnancy, Kemal Güven, Engi̇n Deveci̇, Davi̇d De Pomerai

Turkish Journal of Biology

Dithiocarbamate propineb is an organometal fungicide, which is widely used for the control of diseases in plants. Female Wistar rats were exposed orally to propineb concentrations of 200 and 400 ppm, from the 6th day of gestation up to birth. At 400 ppm, propineb showed a variety of macroscopic (e.g. ptosis and paralysis) and microscopic symptoms in the organs of both fetuses and female rats. We found that the body weights of both one-day old litters and their propineb-treated mothers were lower than those of the controls. Histological examination of the livers and kidneys of the fetuses and propineb-treated pregnant …


About Presence Of Urocythereis Britannica Athersuch In İzmit Bay (Nw Turkey) In Pleistocene, Cüneyt Kubanç, Engi̇n Meri̇ç, Di̇nçer Gülen Jan 1999

About Presence Of Urocythereis Britannica Athersuch In İzmit Bay (Nw Turkey) In Pleistocene, Cüneyt Kubanç, Engi̇n Meri̇ç, Di̇nçer Gülen

Turkish Journal of Zoology

In this study, 164 samples that were collected by drilling from one on land and eight in the sea were investigated in İzmit Bay. Ostracod species were observed in 126 samples and only in 31 of these samples, Urocythereis britannica Athersuch was present. The evaluations of the species, age by electron spin resonance technique showed that Urocythereis britannica Athersuch reached İzmit Bay and Marmara Sea through the Agean Sea towards the end of Lower Pleistocene.


Determination Of Maize Genotypes Tolerates To Low Temperature At Early Developing Stages, Engi̇n Kinaci, Ekrem Kün Jan 1999

Determination Of Maize Genotypes Tolerates To Low Temperature At Early Developing Stages, Engi̇n Kinaci, Ekrem Kün

Turkish Journal of Agriculture and Forestry

This research has been carried to identify maize genotypes which germinate and emerge under the temperature commonly known as minimum and tolerate to low degrees of temparatures at early developing stages. Samples have been used were collected from regions or locations where early planting of maize is risky and/or growing period is not sufficient. Variations were determined for germination rate, number of 50% germination days, number of 50% emergence days, number of primary roots and their total length and coleoptile length. These samples were germinated at 9 o C and showed resistance to 4.8 o C air temperature at early …


Determination Of Maize Genotypes Tolerates To Low Temperature At Early Developing Stages In Central Anatolia, Engi̇n Kinaci, Ekrem Kün Jan 1999

Determination Of Maize Genotypes Tolerates To Low Temperature At Early Developing Stages In Central Anatolia, Engi̇n Kinaci, Ekrem Kün

Turkish Journal of Agriculture and Forestry

This research has been carried in Ankara and Konya at research fields to identify maize genotypes wihch can tolerate to low degrees of temperatures at early developing stages. Samples has been used in the research were collected from regions where early planting of maize is risky and/or growing period is not sufficient. Data obtained from experiments carried on various stages of the samples were evaluated and variations determined for tasseling, maturity and number of kernel rows per ear. These samples resist to 4.8 o C at early developing stage and they are relatively early maturing. Genotypes will select from these …


Analysis On The Actual And Potential Condition Of The Middle And Large Sized Forest Products Industry From A Total Quality Management's Perspective (A Sample Of The Karadeniz Region), Hi̇cabi̇ Cindik, Yener Top, Selman Karayilmazlar, Kadri̇ Cemi̇l Akyüz Jan 1999

Analysis On The Actual And Potential Condition Of The Middle And Large Sized Forest Products Industry From A Total Quality Management's Perspective (A Sample Of The Karadeniz Region), Hi̇cabi̇ Cindik, Yener Top, Selman Karayilmazlar, Kadri̇ Cemi̇l Akyüz

Turkish Journal of Agriculture and Forestry

In today's environment, all companies are facing increasing competitive pressures and they need to use different ways in order to deal with these pressures and survive. One of these ways is Total Quality Control (TQC). TQC links quality to customer satisfaction. The primary objective of this approach is to incorporate quality and integrity into all functions at all levels of the organization. Quality is an important competition way for existing of companies. The Companies that can not implement products fitness for use is falling in danger. Forest products industry have to interest in quality and establish their quality system. First …


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Agriculture and Forestry

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Cover And Contents Jan 1999

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Turkish Journal of Earth Sciences

No abstract provided.


Cover And Contents Jan 1999

Cover And Contents

Turkish Journal of Earth Sciences

No abstract provided.


Determination Of Crop Water Stress Index (Cwsi) And Irrigation Timing By Utilizing Infraredthermometer Values On The First Corn Grown Under Çukurova Conditions, Cafer Gençoğlan, Attila Yazar Jan 1999

Determination Of Crop Water Stress Index (Cwsi) And Irrigation Timing By Utilizing Infraredthermometer Values On The First Corn Grown Under Çukurova Conditions, Cafer Gençoğlan, Attila Yazar

Turkish Journal of Agriculture and Forestry

This study was carried out to determine crop water stress index (CWSI) using the infrared thermometer data; to estimate irrigation time from this index and to obtain yield-CWSI relationships for maize under Çukurova Region conditions. In this research, irrigation water levels were 100% (I 100 ), 80% (I 80 ), 60% (I 60 ), 40% (I 40 ), 20% (I 20 ) and 0% (I 0 ) of water depleted in the 120 cm soil profile in every ten days, so different level of water stress treatments were created. A total of 752 mm and 823 mm of irrigation water …


Investigations On The Possibility To Obtain Mal Secco (Phoma Tracheiphila Kanc. Et Ghik.) Resistant Varieties Via Protoplast Fusion (Somatic Hybridization) In Lemon, Namik Kemal Koç, Mukadder Kayim, Ahmet Çinar, Mustafa Küsek Jan 1999

Investigations On The Possibility To Obtain Mal Secco (Phoma Tracheiphila Kanc. Et Ghik.) Resistant Varieties Via Protoplast Fusion (Somatic Hybridization) In Lemon, Namik Kemal Koç, Mukadder Kayim, Ahmet Çinar, Mustafa Küsek

Turkish Journal of Agriculture and Forestry

Protoplasts were isolated from cell suspension culture of Kütdiken (Citrus limon (L.) Burm. f.) and from the leaves of Zagara Bianca lemon (Citrus limon (L.) Burm. f.) varieties, and fused by using 40% polyethylen glycol (PEG: 6000 MW). Fusion products were cultured in the basal MT medium containing 0.6 M sucrose and 250 plants were regenerated from globuler embryos derived fusion products. Out of 250 regenerant plant, I50 plants showed root development out of which 100 plants were observed to have morphological differens from their parent plants. Genomic DNA was isolated for 37 of the 100 morphologically different plants and …


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 …