Fahrettin Atar

• PhD
• Associate Professor at Karadeniz Technical University

The primary aim of this investigation was to examine the morphological diversity of leaves in naturally occurring populations of common hornbeam (Carpinus betulus L.) in Türkiye. Twelve common hornbeam populations, distributed over four distinct watersheds in the Eastern Black Sea Region, were sampled from three altitude levels, ranging from sea le...

Due to climate change, forest tree species are expected to be impacted by drought. As drought becomes a worldwide problem, there is a need to investigate the responses of forest tree species to drought. In this study, the objectives were (I) to determine the physiological and biochemical responses of seedlings grown from seeds obtained from differe...

Türkiye'nin çeşitli ekolojik bölgelerinde, arazi kullanımının sürdürülebilirliği ve korunması amacıyla tarım, ormancılık, korunan alanlar ve yerleşim bölgeleri dengeli bir şekilde ele alınmalıdır. Özellikle küresel iklim değişikliği, çölleşme ve erozyon gibi sorunlarla mücadelede arazi kabiliyet sınıflarına dayalı agroforestry uygulamaları önemli b...

The aim of the study is to analyze the studies that have been done and need to be done on the general characteristics, distribution areas, and silviculture of European aspen stands naturally distributed in Türkiye. In the study, data obtained from the General Directorate of Forestry, Department of Forest Administration, and Planning for the year 20...

Çalışmada, farklı yükseltiden temin edilen tohumlardan yetiştirilmiş 1+0, 2+0, 2+1 ve 2+2 yaşlarındaki doğu gürgeni (Carpinus orientalis Mill.) fidanlarının bazı morfolojik özelliklerinin belirlenmesi, morfolojik özelliklere bağlı olarak varyasyonların ortaya koyulması ve gürbüzlük indisi değerlerine göre kalite sınıflarının tespit edilmesi amaçlan...

Kestanenin ıslahına yönelik çalışmalar; özellikle önemli bazı hastalık ve zararlıların bu türün varlığını tehdit etmesi ile yoğunluk kazanmıştır. Bunun yanında kestane meyve verimi ve bal ormanlarının tesisinde ıslah edilmiş bireylerin kullanılması önemlidir. Gerek hastalıklara dayanıklılık gerekse çok amaçlı fonksiyonlara cevap verecek özelliklerd...

Due to its wide range of utilization possibilities, boxwood has undergone severe damage, like all over the world, caused by the excessive forest use in Türkiye from the past to the present. Therefore, it is important to propagate it to ensure the continuity of the species. In this study, the effects of different rooting table temperatures and phyto...

The objective of this study was to investigate involucre morphological variability of common hornbeam ( Carpinus betulus L., Betulaceae) populations in Turkey. In total, 12 natural populations of common hornbeam located in four different watersheds of the Eastern Black Sea Region were sampled from three different altitude zones up to 1200 m a.s.l....

The research aims to determine the morphogenetic variations of the seedling characters in populations representing the vertical distribution area of Scotch pine in Turkey and to reveal the within and among population variations in the vertical distribution areas. In the study, seedlings (three, four and five-year-old) grown from the seeds collected...

It is important to determine the operational purposes and silvicultural applications of pure aspen stands, whose distribution area is increasing gradually in Turkey. Within the scope of the study, it is aimed to reveal the spatial distribution, ecological properties, stand structure characteristics and silvicultural interventions of European aspen...

The effects of different rates of precommercial thinning (PCT) intensity on the stand developmental parameters in natural Picea orientalis stands were investigated to determine the most suitable thinning rate. The present study was performed in Trabzon province located in the northeastern of Turkey. In PCT plots, four different levels of PCT intens...

White mistletoe (Viscum album ssp. abietis, Santalaceae) is a hemi-parasitic plant and is regarded as one of the most significant biotic factors affecting fir forests. Mistletoe affects its host in many ways, including changes in leaf development. This paper studies and quantifies the effect of white mistletoe on morphological, anatomical traits an...

Determining the most suitable intensities for precommercial thinning (PCT) in oriental beech (Fagus orientalis) stands, which cover substantial areas in Turkey and have a high economic and ecological value, is essential to provide higher economic return and obtain well-formed stems. The effects of various rates of PCT interventions on the growth ch...

Leaf chlorophyll concentration is of great importance as it is an indicator of photosynthetic mechanism, chloroplast content and plant metabolism. The measuring it by destructive methods is laborious, time consuming and costly. But, chlorophyll meter (or SPAD) is portable, self-calibrating, convenient and non-destructive device. In the present stud...

Bu çalışmada, Sinop yöresinde tesis edilen dar yapraklı dişbudak plantasyonlarında iki farklı sıklık bakımı müdahalesinin çap, göğüs yüzeyi ve hacim artımı üzerindeki etkilerinin ortaya koyulması amaçlanmıştır. Dar yapraklı dişbudak plantasyonundan seçilen deneme alanlarında iki farklı sıklık bakımı müdahalesi uygulanmıştır. İlk sıklık bakımı müdah...

Chamaecyparis lawsoniana 'Ellwoodii' , Cryptomeria japonica 'Elegans' and x Cupressocyparis leylandii have great importance in terms of usage areas as ornamental plant. The overcoming the problem, that may be encountered in generative propagation of these taxa, using vegetative propagation method are very important for producers dealing with park a...

Oriental sweetgum (Liquidambar orientalis Mill.) is an important endemic species for both wood and non-wood use in Turkey. In the present study, it is aimed to reveal the change of photosynthetic pigment content of oriental sweetgum in summer period. The leaves collected from five oriental sweetgum individuals in the Kanuni Campus of Karadeniz Tech...

From past to the present, cultural, medicinal, landscape and culinary use of junipers has contrib­uted to it being one of the most widely distributed woody plants in the world. Therefore, it is so important that finding appropriate production methods to obtain quality seedlings in line with the usage area. In the present study, it was tried to dete...

This study aims to determine some morphological characteristics of two-year-old common hornbeam (Carpinus betulus L.) and oriental hornbeam (Carpinus orientalis Mill.) seedling and to determine the quality classes of the seedlings according to Turkish Standards Institute’s (TSI) seedling quality standards and sturdiness quotient values. As a study...

Bu çalışmada farklı yükseltilerden elde edilen ve ekim öncesi bazı önişlemlerin uygulandığı tohumlardan yetiştirilen Carpinus orientalis Mill fidanlarına ait yapraklarda, yükselti ve önişlemlere bağlı olarak klorofil içeriklerindeki değişimlerin ortaya konulması amaçlanmıştır. Bitkilerdeki klorofil miktarı yetişme yeri koşulları ve bitki türü başta...

Açelyalar sahip oldukları etkileyici çiçekleri sayesinde geçmişten günümüze kadar insanların dikkatini çeken önemli süs bitkilerinden olmuştur. Dolayısıyla, bu türün üretilmesi, devamlılığının sağlanması ve nihayetinde özellikle halka açık alanlardaki bitkilendirme alanlarında kullanılması önem arz etmektedir. Vejetatif üretim tekniklerinden biri o...

Chlorophyll, which is of vital importance for living things, is the main active ingredient of photosynthesis, and the amount of chlorophyll in the plant can show very sensitive responses to various environmental factors, especially site conditions and plant species. In this study, it was aimed to determine the change of chlorophyll content (SPAD va...

In this study, the effects of root undercutting, fertilization and thinning applications on the morphological characteristics of oriental beech seedlings grown in Karadağ Forest Nursery were investigated. In 2+0 years old seedlings, the effects of treatments including by making root undercutting and thinning (A) and by giving 50 g of ammonium nitra...

Smilax excelsa L., a member of the Smilacaceae family, can be used as a non-wood forest product because it is a medicinal and aromatic plant. In this study, fruits obtained from six different regions (Araklı-Arsin-Sarıca populations in Trabzon province, Yakakent population in Samsun province, Erfelek population in Sinop province, Amasra population...

Salix anatolica Ziel. & D. Tomasz., belonging to Salicaceae family, is endemic to the East Mediterranean in Turkey. Its threat category has been assessed as vulnerable based on the red list criteria of IUCN. Therefore, it is necessary to protect and reproduce. Within the scope of this study, propagation of the species is carried out by cutting whic...

Za razumijevanje genetske strukture populacija šumskog drveća potrebno je poznavati genetsku varijabilnost. Razvoj izoenzimske tehnike olakšao je određivanje genetske strukture populacija u području rasprostranjenja vrsta. Određivanjem genetske strukture i varijabilnosti Picea orientalis (L.) Link, koja je u svijetu ograničena na manje područje, tr...

Bitkiler için en önemli besin elementlerinden biri azot olup atmosferik azotun organik forma dönüştürülmesinde bazı bitkiler görev almaktadır. Köklerinde bulunan bakteriler vasıtasıyla azot bağlama yeteneğinde olan bu bitkiler azot eksikliğinin hafifletilmesi ve toprağın iyileştirilmesi bakımından önem arz etmektedir. Araştırmada azot bağlayıcı baz...

Chlorophyll is the main factor of photosynthesis which is vital for living things. The amount of chlorophyll in the plants affects the rate of photosynthesis. In addition, it has been revealed with several studies that chlorophyll amount varies according to many factors such as site conditions and plant species. In this study, it is aimed to determ...

To know the phenological activities of tree species as place and time is to shed light on the practitioners in the main forestry works such as nursery, forestation, regeneration and thinning. According to the observations made in Cercis siliquastrum L. and Ginkgo biloba L. individuals, which have an important place as ornamental plant, temporal dif...

Arbutus unedo L. and Arbutus andrachne L., belonging to Ericaceae family and being evergreen, are two important species having economic values in natural flora of Turkey. These species spread as enclave in the Black Sea Region, while they are found naturally in the Mediterranean and Aegean Region of Turkey. Arbutus unedo, whose fruits contain a hig...

Sweet chestnut, Castanea sativa Mill., is an important multipurpose tree species in Asia Minor and Europe. The objective of this study was to investigate variation among eight sweet chestnut populations in Turkey by using different morphological characteristics of fruits and seedlings. A total of four fruit characteristics were analysed: fruit leng...

European yew (Taxus baccata L.), native in North and Central Europe, Mediterranean countries, Azores, Turkey and Caucasus, has a wide range of uses as a non-wood forest product. Because the species is reduced in nature as a result of widespread utilization, it is necessary to protect and reproduce yew. The effects of different greenhouse media, roo...

Marmara is a region where there is intense industrialization and urbanization in addition to the difference in climate and topographical structure. it is important to establish a balance between existing resources and needs. For this reason, while making maximum use of the available land, it is necessary to pay attention to the sustainability of th...

Large-leaved lime (Tilia platyphyllos Scop.) is native to Central and Southern Europe. The species is frequently planted in parks and gardens. In addition, its young leaves can be eaten as salad, and its flowers use to make a tea, are also used for treatment of colds and coughs, as it has sedative, antispasmodic, diaphoretic, hypotensive, emollient...

Autumn olive (Elaeagnus umbellata Thunb.), is a native plant of China, Japan and Korea. The species is a deciduous shrub which can be used for wildlife habitat, and marketed as an ornamental plant. Its edible fruits are exceptionally rich in the antioxidant carotenoid lycopene that has been associated with prevention of certain chronic diseases inc...

Strawberry tree (Arbutus unedo L.), a member of Ericaceae family, is an evergreen broadleaf shrub or small tree, common in the macchia vegetation of the Southern Europe, from the Western Mediterranean to the Southern Atlantic coastlines. The fruits and leaves are well known in folk medicine as antiseptics, diuretics and laxative effects and also us...

The success of the afforestation works (ecological and biological compatibility, economic success, etc.) depends on the use of seeds of known origin or quality seedlings. For this reason, it is important to determine seed characteristics and to eliminate dormancy. In this study, it was aimed to determine the germination characteristics of seeds of...

The purpose of the present study is to investigate the development of the period of first three years of the shoots that have sprouted after the clear cutting in the Anatolian chestnut forests which have high sprouting ability and are operated as short rotation. And, it is also identification of silvicultural interventions. Chestnut species widely...

An effective tree breeding program predicts to determine variations of forest trees. In this way, the economic ones should be kept for future use. On the other hand, by utilizing the selection and hybridization methods in breeding, it is aimed to provide mass production of the improved seeds by these methods and to use the obtained seedlings in the...

Common hornbeam (Carpinus betulus L.) is located in the Black Sea Region, but it is also locally found in the Amanos Mountains. While it generally exists in mixed forests together with beech, chestnut, oak and redwood trees; it can be seen pure stands of this species in some regions. In the study is aimed to investigate of development belong to the...

Autumn olive (Elaeagnus umbellata Thunb.), belonging to Elaeagnaceae family, naturally spreads over Southern Europe and East Asia. It is a deciduous shrub or small tree growing up to 6 m in height and 9 m in width. Its form is rounded, with dense branches. The species can store the nitrogen in its roots. Thus, it has the ability to live even in the...

The objective of this study was to determine the factors causing the deterioration of the stand structures of chestnut forests in Kütahya-Simav and to reveal the relation between these factors and chestnut diseases. Chestnut forests in Kütahya Simav were chosen as research area in this study. The damages given to forests in the result of the combat...

The aim of this study was to determine some morphological characteristics, depending on altitudes and populations, in seeds of common hornbeam (Carpinus betulus L.) naturally distributed in Turkey. Seeds of common hornbeam were obtained from populations growing at different altitudes in the watersheds of Trabzon-Maçka, Trabzon-Çaykara, Rize-Çamlıhe...

Because of the geographical location, Turkey has a significant potential in terms of biodiversity and ecological properties. Chestnut is an economically important tree species in Turkey for multipurpose usages including timber, fuel wood, as well as chestnut fruit and chestnut honey. Anatolian Chestnut, whose natural tree species is Turkey, is rich...

Throughout the history of humanity, people have often degraded their environment. The uses of ornamental plants in environmental management are very broad. However, ornamental plants are grown for decoration, rather than food or other by-products. Within ornamental plants, Japanese plume cedar (Cryptomeria japonica D.Don. ‘Elegans’ (Henk & Hochst.)...

The objective of the present study is to determine the germination speed of seeds of the common hornbeam (Carpinus betulus L.) naturally spread in Turkey according to different populations and pre-treatments. The germination speed indicates seed strength and the high-strength seed germinates faster than the low-strength seed. Common hornbeam is fou...

Kent ağaçlarında budama çalışmalarının değerlendirildiği bu çalışmada; İstanbul İlinde yapılan budama çalışmaları ve bu çalışmaların başarısının ortaya konulması amaçlanmıştır. Araştırma kapsamında, İstanbul Büyükşehir Belediyesi Park ve Bahçeler Müdürlüğü tarafından 2006 yılından itibaren devam eden budama çalışmalarının yapıldığı alanlar örneklen...

Alder buckthorn (Frangula dodonei Ard. subsp. dodonei) is widespread in the whole of Europe and Western Siberia, except for the northernmost regions where temperature conditions have reached the extremes. The most common place in Turkey is the Black Sea region, and especially the northeastern part of this region. In locations outside this area, it...

At the beginning of the tree breeding programs, it is started over investigations of genetic variations. Thanks to the genetic variation investigations it is proved how does the scape of variations among populations and trees in populations change according to the variations like altitude, distance from sea and rain. Oriental beech is a very import...

Oriental beech is a very important tree species in the forestry. It is aimed in this study to determine variations on the seedling which are grown from seeds picked from 11 different Oriental beech populations (Sinop-Merkez, Sinop-Ayancık, Samsun-Kunduz, Samsun-Karapınar, Karabük-Yenice, Düzce-Çiçekli, Trabzon-Maçka, Trabzon-Çaykara, Giresun-Kulakk...

The germination characteristics of common hornbeam (Carpinus betulus), which shows a natural distribution in Turkey, were analysed. Seeds were obtained from 12 populations at different altitudes in the river basins of Trabzon-Maçka, Trabzon-Çaykara, Rize-Çamlıhemşin and Giresun-Espiye. In common hornbeam seeds, there is a germination barrier caused...

Sahil çamı Batı Akdeniz ülkelerinin ağacıdır. Ülkemizde doğal olarak yetişmemekte, ancak ağaçlandırmalarda, özellikle kumsal sahil alanlarının ağaçlandırmalarında yaygın şekilde başarı ile kullanılmaktadır. Araştırmada materyal olarak Sahil çamı (Pinus pinaster Aiton) ağaçlandırma sahaları kullanılmıştır. Bu sahalar Çanakkale Orman İşletme Müdürlüğ...

Ülkemizde Carpinus cinsinin iki doğal türünden biri olan Doğu Gürgeni (Carpinus orientalis Miller) Trakya, Ege, Marmara Bölgesi, Kuzey Anadolu ve Doğu Anadolu Bölgesin de yayılış gösterir. Özellikle sahil kesimlerinde, kurak ve kalkerli yamaçlarda, güney yamaçlarda, tepelik kesimlerde, daha çok düşük yükseltilerde yetişir. Carpinus orientalis Mille...

Seeds of oriental hornbeam (Carpinus orientalis Mill.) were collected from the natural distribution area in Turkey. Seeds were collected from three different populations originating from three different altitude levels (0-400 m, 400-800 m, 800-1200 m), from the sea level to the highest point of the study sites (1200m). Including control, 22 differe...

Sürdürülebilir orman yönetimi ilkeleri çerçevesinde, orman kaynaklarımızın en iyi şekilde işletilmesi, ülke ve yöre halkının optimum faydalanmasına sunulması zorunludur. Bunun içinde mevcut araziden maksimum yararlanacak şekilde arazinin değerlendirilmesi gerekir. Mevcut araziden fonksiyonel olarak yararlanmak için çok amaçlı bitki türlerinin seçim...

Hornbeam (Carpinus betulus L.) seeds were collected from its natural distribution areas, different altitudes, in Trabzon-Macka, Trabzon-Caykara, Rize-Camlıhemsin and Giresun-Espiye. Chlorophyll content of seedlings (1+0 year old) was measured with portable chlorophyll meter (Minolta SPAD-502, Osaka, Japan). This device measures chlorophyll content...

Oriental Hornbeam (Carpinus orientalis Miller) is one of the two endemic Carpinus species in Turkey. In order to determine the changes in morphological characteristics depending on altitude seeds from 45 hornbeam trees in Maçka, Trabzon were collected. Morphological characteristics, such as seed length, width and largeness, 1000 seed weight and see...

Nature conservation should be made with nature objects. Increased population and irresponsible consumption caused the destruction of the forest and this situation has emerged new approaches about nature conservation which is the largest component of the nature in forest. Likewise, forest management with nature conservations has become more importan...

Ülkemiz, arazi kullanımı açısından değerlendirildiğinde mevcut doğal kaynakların verimli bir biçimde kullanılmadığı, bunun da bugün ve yakın gelecekte başta insan olmak üzere canlıların olumsuz yönde etkileneceği ve yaşam mücadelesinde zorluklarla karşılanacağı anlamına gelmektedir. Bu sebeple, yararlanma ve paylaşımın katılımcı bir yaklaşımla ele...

Çalışmada ülkemizde doğal yayılış gösteren Fıstıkçamı’nın 15 farklı populasyonundan elde edilen karma tohum örneklerinden yetiştirilen fidanlar kullanılmıştır. Fidanlar KTÜ araştırma alanında yetiştirilmiş ve her bir populasyon için 2+0 yaşında ortalama 36 fidan olmak üzere toplam 542 fidanda; fidan boyu, kök boğaz çapı, yan dal sayısı ve en uzun y...

Bu çalışma, farklı orijinlerden elde edilmiş Toros Göknarı (Abies cilicica subsp. cilicica, Abies cilicica subsp. isaurica) tohumlarının doluluk oranlarını çeşitli sıvı ortamlar kullanarak belirlemek ve orijinler arasındaki doluluk oranı ve 1000 tane ağırlığı farklılıklarını ortaya koymak amacıyla yapılmıştır. 7 farklı orijinden temin edilen tohuml...

Crimean pine different originated seeds were used, full seed ratio on different liquid medias, full seed ratio between origins and weight of 1.000 seeds diferences were studied Crimean pine seed’s, obtained from seven different origins, floated on liquid media. Floatation on 96% ethanol showed 100% empty and filled seed difference. Other medias sho...