sezgin ayan - Academia.edu (original) (raw)
Papers by sezgin ayan
SilvaWorld
In the conditions of environmental pollution by emissions of magnesite production (Combined Magne... more In the conditions of environmental pollution by emissions of magnesite production (Combined Magnesite, Satka, Chelyabinsk region), a study of the conjugate variability of signs of the female generative system of the Scots pine (Pinus sylvestris L.) was carried out. Signs with a stable connection have been identified, as well as signs whose direction of interconnection changes under the influence of aerotechnogenic pollution. Thus, the relationship of the signs characterizing the size and mass of cones is rigidly genetically determined and is not violated in conditions of a strong level of pollution. The seed productivity of the pine stands, regardless of the growing conditions, is more closely related to the survival rates of ovules in the gametophytic period than in the period of embryonic development. However, in conditions of heavy pollution, the relationship between the survival of ovules in the 1st vegetative and embryonic periods is negative, which may indicate the effective e...
Turkish Journal of Forestry, 2002
![Research paper thumbnail of Variation in cone and seed characteristics in a clonal seed orchard of Anatolian black pine [Pinus nigra Arnold subsp. pallasiana (Lamb.) Holmboe]](https://attachments.academia-assets.com/112367902/thumbnails/1.jpg)
](PubMed, Jul 23, 2010
Cone and seed characteristics of Anatolian black pine were investigated in a clonal seed orchard ... more Cone and seed characteristics of Anatolian black pine were investigated in a clonal seed orchard for two years, 2002 and 2006. The orchard, originated from Kastamonu-Karadere seed stand was established in 1993 by using 1 year-old grafts in an area of 13 ha, at Hanönü-Günlüburun, northern Turkey and includes 30 clones. The results showed that, significant variation exists among clones for 14 of cone and seed traits for 2006. The clones had cone wet weight in range of 16.92 to 38.51 g, whereas this value varied in range of 11.16 to 24.06 g for cone dry weight. Cone length varied from 55.19 to 74.43 mm, while cone width varied in range of 26.66 to 36 57 mm. The range of scale number and fertile scale number varied from 80.02 to 110.64 and 38.03 to 56.20, respectively. Among the clones, the seed and filled seed number were 6.70-24.97 and 5.79-21.12, respectively. The 1000 seed weight varied in range of 20.36 to 29.73 g. The respective values of average seed length and width were 6.29 mm and 3.57 mm, while wing length and width were 19.59 mm and 7.21 mm. The average seed efficiency was 13.5%. Coefficients of variation among grafts (CV(G)) were mostly bigger than among clones (CV(c)), indicating high variation within the population. Year to year correlation coefficients for seed and cone characteristics were varied from moderate (0.58) to strong (0.83). The respective broad sense heritability values of clone mean basis (H2) for cone dry weight, cone width, 1000 seed weight were 0.77, 0.83 and 0.76. The seed efficiency had a H2 value of 0.43.
PubMed, Jul 1, 2006
The present study was carried out on Paulownia tomentosa (6), Paulownia elongate (4), Paulownia f... more The present study was carried out on Paulownia tomentosa (6), Paulownia elongate (4), Paulownia fortunei (5) and Paulownia fortunei x tomentosa (1) origins at Kastamonu Forest Nursery. The seedling height growth (SH), root collar diameter (RCD), dry root percentage (DRP) and seedling percentage (SP) of one-year old seedlings of the origins were studied for comparing growth performance of the species and origins and discussing for guidance to field stage based on nursery stage. As a result, P. tomentosa x fortunei hybrid has the highest SH (72.62 cm) among the used species. Significant difference was determined among the origins as to the SH and DRP. The maximum SH were determined for P. tomentosa Beijing-Daxin (81.32 cm) and P. elongata Beijing-Daxin (80.76 cm) origins. The maximum DRP were determined for P. tomentosa Anhui-Tongling (77%) origin. There were no significant differences based on RCD and SP among the species and the origins. Among the parents, there were important diversities for SH and RCD. As a final remark, observations and evaluations of the Paulownia studies should be included with the clonal variation for further studies because of the observed growth variations within the population.
DergiPark (Istanbul University), Sep 1, 2012
Reactive oxygen species (ROS) are involved in various aspects of seed physiology. Their generatio... more Reactive oxygen species (ROS) are involved in various aspects of seed physiology. Their generation, which occurs during seed desiccation, germination and ageing, may lead to oxidative stress and cellular damage, resulting in seed deterioration. However, cells are endowed with detoxifying enzymes and antioxidant compounds that scavenge ROS and participate in seed survival. The detoxifying mechanisms play a key role in completion of seed germination and seed storability. The enzyme catalase has been employed for determining viability of seeds. The plan of the present work was to explore the relationship between catalase activity and germination of four Abies taxa. For this purpose, seeds which belong to four Abies taxa (Abies nordmanniana subsp. equi-trojani, A. cilicica, A. nordmanniana ssp. bornmuelleriana, A. nordmanniana ssp. nordmanniana) collected from different provenances in 2010 and 2011 harvesting years were used. Germination percentages and catalase enzyme activities of different Abies taxa were measured. Our results demonstrate that Abies seeds had different germination percentage and catalase enzyme activity. Abies nordmanniana subsp. equi-trojani seeds which are collected from Edremit-Gürgendag have higher germination percentage and catalase activity (P<0.05). Other populations of Abies did not differ from each other. In a conclusion, high activity of catalase enzyme refers to viability and quality of seed in Abies taxa.
DergiPark (Istanbul University), Jun 1, 2008
Özet Türkiye ormancılığında doğal gençleştirme alanlarındaki başarı 291 sayılı tamime göre (Klasi... more Özet Türkiye ormancılığında doğal gençleştirme alanlarındaki başarı 291 sayılı tamime göre (Klasik yöntem) belirlenmektedir. Ancak, klasik yöntem sadece alanda mevcut gençliğin miktarını baz almakta, gençliğin alana dağılış şeklini göz ardı etmektedir. Çalışmada; Karadere Orman İşletme Müdürlüğü'nde klasik yönteme göre oldukça yüksek başarı derecesine sahip doğal gençleştirme alanlarının "Sıfır Alan Yöntemine" göre heterojen dağılış gösterdiği saptanmıştır. Bu sonuçtan, klasik yönteme göre gençlik başarısı hakkında daha güvenilir sonuç veren sıfır alan yönteminin doğal gençleştirme alanlarında kullanımı tartışılmalıdır. Ayrıca, karışık meşcere kuruluşlarında tek türü dikkate alan gençleştirme yöntemi seçimi ve kullanımının önemle irdelenmesi gerekmektedir.
DergiPark (Istanbul University), Jun 1, 2007
In this study, the Bolu-Alada originated scots pine seeds were sowed onto the seedbeds of Bolu Fo... more In this study, the Bolu-Alada originated scots pine seeds were sowed onto the seedbeds of Bolu Forest Nursery after soaking for 24 hours into the 200-400-600 ppm concentration of GA 3 , 50-150-300 ppm concentration of IBA+NAA and 20-50-100 ppm concentration of Kinetin for determining the effects of plant growth regulators (phytohormones) on the morphological characters of Scots pine (Pinus silvestris L.) seedlings. After 36 days when the primary leaves emerged, the seedlings were lifted and some parameters as root collar diameter (RCD), root length (RL), hypocotyls length (HL), epicotyls length (EL), cotyledon number (CN), cotyledon length (CL), root fresh weight (RFW), stem fresh weight (SFW), root dry weight (RDW), stem dry weight (SDW) were measured on them. By investigating morphologic characters of the seedlings, determination of the advantage of plant growth regulators on seedling growth and production was aimed. There are no statistical differences on RCD, CL, CN, SDW characters after the treatments. The biggest values of RCD (0,87 mm), CN (6.55 unit), CL (2.23 cm), SDW (6,36 mg) were obtained for IBA+NAA. Despite of the fact that there is no effect of hormone x dose interaction on RL, the biggest RL (7,95 cm) was obtained for 600 ppm GA 3. Hormone and hormone x dose interaction affect the EL and HL. The biggest HL and EL values (HL = 1.30 cm, EL = 0.34 cm) were determined for GA 3 , as to the dose for 400 ppm GA 3 (HL = 1.417 cm, EL = 0.37 cm). The hormone kind affects the RFW, SFW and RDW and the biggest values were obtained as 22,33 mg, 36,63 mg, and 3,82 mg for IBA+NAA, respectively.
Kastamonu University Journal of Forestry Faculty, Jun 1, 2007
Bu çalı mada; Kastamonu-Hanönü ilçesindeki Karadere orijini 9 ya ındaki karaçam (Pinus nigra Arno... more Bu çalı mada; Kastamonu-Hanönü ilçesindeki Karadere orijini 9 ya ındaki karaçam (Pinus nigra Arnold. subsp. pallasiana (Lamb.) Holmboe) tohum bahçesinde; kozalak, tohum ve fidecik özelliklerinin klonal varyasyonu ara tırılmı tır. Bu amaçla; bahçeyi olu turan 30 klonda kozalak sayısı (KoS) ve kozalak ba lama yüzdeleri (KoBY), rasgele seçilen 9 klonda ise; kozalak a ırlı ı (KoA), kozalak boyu (KoB), kozalak eni (KoE), kozalaktaki tohum sayısı (KoTS), 1000 dane a ırlı ı (1000 DA), çimlenme hızı (ÇH), çimlenme yüzdesi (ÇY), kotiledon sayısı (KS), hipokotil boyu (HB) ve kökçük boyu (KB) belirlenmi tir.
Sigma Journal of Engineering and Natural Sciences, 2005
In this study; 2+0 aged, bare rooted, Anatolian black pine seedlings, produced at Kastamonu-Taşkö... more In this study; 2+0 aged, bare rooted, Anatolian black pine seedlings, produced at Kastamonu-Taşköprü forest nursery by using four different seed origins were used. Some morphological characters of the seedlings were determined and the appropriateness to TS 2265/February 1988 and the more suitable standard to the EU norms named TS 2265/March 1976, were examined. In addition, the sensitiveness of quality classification of TSI for the seedlings were checked with discriminate analysis. According to the classifications of February 1988 and March 1976 standards, 85.5% and 62.7% of the investigated seedlings were determined as inconvenient seedlings, respectively. It was determined that the origin of Boyabat had the highest RCD (2.7 mm) and SH (15.7 cm) values among the four seed origins. For this reason, the using of this origin at dry and moist regions will be advisable. The February 1988 standard has the higher values than March 1976 standard from the point of the SH and S/R criteria. Nevertheless, a new standard suited to EU norms as to the RCD, should be developed.
Ormancılık Araştırma Dergisi
Türkiye’de verimli ormanlar kuran meşe ormanı taksonlarından biri sapsız meşedir (Quercus petraea... more Türkiye’de verimli ormanlar kuran meşe ormanı taksonlarından biri sapsız meşedir (Quercus petraea (Matt.) Liebl.). Bu takson; Q. p. subsp. petraea, Q. p. subsp. iberica ve Q. p. subsp. pinnatiloba olmak üzere üç alt tür ile temsil edilmektedir. Subsp. petraea, yükseltisi 200 m’lerde, Bolu ve Kırklareli’de; Subsp. iberica, yükseltisi 0-1600 m’lerde, İstanbul, Kastamonu, Artvin, Balıkesir, Bursa, Eskişehir, Kırklareli, Kütahya, Sakarya, Sinop, Tokat, Trabzon’da; Subsp. pinnatiloba ise yükseltisi 1200-2200 m’lerde, Adana, Hakkâri, Bingöl, Elazığ, Hatay, İçel, Malatya, Kahramanmaraş, Muş, Tunceli, Van yörelerinde doğal yayılış göstermektedir. Türkiye’de sapsız meşe için OGM adına Orman Ağaçları Tohum Islah Araştırma Müdürlüğü Enstitüsünce dokuz adet tohum meşceresi tescil edilmiş ve Ulusal Kayıt (UK) nosu almış olup, bunlardan beşi daha sonra farklı gerekçelerle iptal edilmiş olup, aktüel olarak dört adet tescilli tohum meşceresi bulunmaktadır. Halen tohum meşceresi vasfını taşıyan meşc...
CERNE
The influence of effective microorganisms on physiological characteristics of containerized tauru... more The influence of effective microorganisms on physiological characteristics of containerized taurus cedar (Cedrus libani A. Rich.
Anadolu Orman Araştırmaları Dergisi
Snags are a major structural and functional component in oriental beech (Fagus orientalis Lipsky.... more Snags are a major structural and functional component in oriental beech (Fagus orientalis Lipsky.) because of their high degree of naturalness in northern Anatolia forests. This research, as a case study, was conducted in the even-aged and pure oriental beech managed forest in Bartın. In this research where the effect of exposure and elevation, zone factors on stability index, the number and volume of snags (standing coarse deadwood: CDWsnags) were examined. It was found that exposure did not affect the stability index, number and volume of CDWsnags. However, there is a significant difference among the elevation zone on the number of CDWsnags, their volume and stability index (P≤0,000). It was found that there is an average volume of 8.87 m3/ha of CDWsnags. The diameter of the snags is distributed between 32 and 72 cm. In addition, a strong positive correlation was determined between the number of CDWsnags and the stability index (r= 0,95), height and breast diameter of CDWsnags (r ...
DergiPark (Istanbul University), Mar 1, 2009
Çalışma, 1995 yılında Kastamonu'da 30 adet klon ile tesis edilen Araç-Dereyayla orijinli Taşköprü... more Çalışma, 1995 yılında Kastamonu'da 30 adet klon ile tesis edilen Araç-Dereyayla orijinli Taşköprü-Tekçam sarıçam (Pinus sylvestris L.) klonal tohum bahçesinde gerçekleştirilmiştir. Araştırmada, tohum bahçesindeki klonların çiçeklenme fenolojisi 2006 ve 2007 yıllarında incelenmiş, göstermiş oldukları farklılıklar tespit edilmiştir. Fenolojik gözlemler sırasında dişi çiçeklerde altı, erkek çiçeklerde sekiz gelişim evresi ayırt edilmiştir. Tozlaşma dönemi çiçeklenme fenolojileri incelendiğinde; 2006 ve 2007 yıllarında erkek çiçeklerin polen yayım dönemi, Mayıs ortası-Haziran ortası arasında gerçekleşmiştir. Dişi çiçeklerin 2006 yılı polen kabulüne başlama ve bitiş dönemi, Mayıs ortası-Haziran ortası olarak belirlenmiştir. 2007 yılında ise dişi çiçeklerin polen kabulüne başlama ve bitiş dönemi Mayıs ortası-Haziranın ilk haftası arasında gerçekleşmiştir. Erkek çiçek polen yayımı ile dişi çiçek polen kabul dönemleri arasında her iki yılda da, hem zamanlama hem de süre açısından bir uyum olduğu gözlenmiştir.
The authors wish to make the correction of the paper of Sarsekova et al. (2020). In the original ... more The authors wish to make the correction of the paper of Sarsekova et al. (2020). In the original paper, there was a mistake in the order of the first and the second name of the author Talghat Abbzhabnov. The correct order is Talghat Abbzhabnov. The original paper published on 11 May 2020 has been updated and both versions will be available on the paper webpage. The authors emphasize that this change does not affect the results of this research, and they apologize for any inconvenience this change may cause
Biological Diversity and Conservation, Nov 1, 2016
Fresenius Environmental Bulletin, 2018
In this study, the effects of electromagnetic field applications on sycamore maple seed were inve... more In this study, the effects of electromagnetic field applications on sycamore maple seed were investigated. The seeds were exposed to different treatment period 20, 60 and 120 min. and varied magnetic field intensities 200 and 400 mT, respectively. This study has been investigated total soluble proteins of seed, alpha amylase, glucose, fructose and starch amounts. In the result, applying of magnetic field (MF) in different intensity and duration on cold stratified and non-stratified sycamore maple seeds at +4 degrees C and 45 days, has affected the protein, enzymes, glucose and starch content of the seeds. MF affected the amount of protein in stratified seeds negatively in 20 minute 400 mT; but had a positive effect on control group of non-stratified seeds. One month after applying MT value of protein in stratified seed in 60 min. 200 mT, was increased in control groups (P<0,05). However with applying MF in process of 120 min. 200 mT alpha amylase activity of stratified seeds decreases, in stratified seeds in 60 min. 400 mT and 120 min. 200 mT process alpha amylase activity has increased. Although alpha amylase activity shows an increase one month after applying MF in stratified seeds control group in contrast to other processes, but in non-stratified seeds a decrease has been determined. The percentage of starch in seeds according to the control in stratified groups there was a decrease in 200 mT 60 minutes and 120 minutes
Artvin Çoruh Üniversitesi Orman Fakültesi dergisi, 2017
SilvaWorld
In the conditions of environmental pollution by emissions of magnesite production (Combined Magne... more In the conditions of environmental pollution by emissions of magnesite production (Combined Magnesite, Satka, Chelyabinsk region), a study of the conjugate variability of signs of the female generative system of the Scots pine (Pinus sylvestris L.) was carried out. Signs with a stable connection have been identified, as well as signs whose direction of interconnection changes under the influence of aerotechnogenic pollution. Thus, the relationship of the signs characterizing the size and mass of cones is rigidly genetically determined and is not violated in conditions of a strong level of pollution. The seed productivity of the pine stands, regardless of the growing conditions, is more closely related to the survival rates of ovules in the gametophytic period than in the period of embryonic development. However, in conditions of heavy pollution, the relationship between the survival of ovules in the 1st vegetative and embryonic periods is negative, which may indicate the effective e...
Turkish Journal of Forestry, 2002
PubMed, Jul 23, 2010
Cone and seed characteristics of Anatolian black pine were investigated in a clonal seed orchard ... more Cone and seed characteristics of Anatolian black pine were investigated in a clonal seed orchard for two years, 2002 and 2006. The orchard, originated from Kastamonu-Karadere seed stand was established in 1993 by using 1 year-old grafts in an area of 13 ha, at Hanönü-Günlüburun, northern Turkey and includes 30 clones. The results showed that, significant variation exists among clones for 14 of cone and seed traits for 2006. The clones had cone wet weight in range of 16.92 to 38.51 g, whereas this value varied in range of 11.16 to 24.06 g for cone dry weight. Cone length varied from 55.19 to 74.43 mm, while cone width varied in range of 26.66 to 36 57 mm. The range of scale number and fertile scale number varied from 80.02 to 110.64 and 38.03 to 56.20, respectively. Among the clones, the seed and filled seed number were 6.70-24.97 and 5.79-21.12, respectively. The 1000 seed weight varied in range of 20.36 to 29.73 g. The respective values of average seed length and width were 6.29 mm and 3.57 mm, while wing length and width were 19.59 mm and 7.21 mm. The average seed efficiency was 13.5%. Coefficients of variation among grafts (CV(G)) were mostly bigger than among clones (CV(c)), indicating high variation within the population. Year to year correlation coefficients for seed and cone characteristics were varied from moderate (0.58) to strong (0.83). The respective broad sense heritability values of clone mean basis (H2) for cone dry weight, cone width, 1000 seed weight were 0.77, 0.83 and 0.76. The seed efficiency had a H2 value of 0.43.
PubMed, Jul 1, 2006
The present study was carried out on Paulownia tomentosa (6), Paulownia elongate (4), Paulownia f... more The present study was carried out on Paulownia tomentosa (6), Paulownia elongate (4), Paulownia fortunei (5) and Paulownia fortunei x tomentosa (1) origins at Kastamonu Forest Nursery. The seedling height growth (SH), root collar diameter (RCD), dry root percentage (DRP) and seedling percentage (SP) of one-year old seedlings of the origins were studied for comparing growth performance of the species and origins and discussing for guidance to field stage based on nursery stage. As a result, P. tomentosa x fortunei hybrid has the highest SH (72.62 cm) among the used species. Significant difference was determined among the origins as to the SH and DRP. The maximum SH were determined for P. tomentosa Beijing-Daxin (81.32 cm) and P. elongata Beijing-Daxin (80.76 cm) origins. The maximum DRP were determined for P. tomentosa Anhui-Tongling (77%) origin. There were no significant differences based on RCD and SP among the species and the origins. Among the parents, there were important diversities for SH and RCD. As a final remark, observations and evaluations of the Paulownia studies should be included with the clonal variation for further studies because of the observed growth variations within the population.
DergiPark (Istanbul University), Sep 1, 2012
Reactive oxygen species (ROS) are involved in various aspects of seed physiology. Their generatio... more Reactive oxygen species (ROS) are involved in various aspects of seed physiology. Their generation, which occurs during seed desiccation, germination and ageing, may lead to oxidative stress and cellular damage, resulting in seed deterioration. However, cells are endowed with detoxifying enzymes and antioxidant compounds that scavenge ROS and participate in seed survival. The detoxifying mechanisms play a key role in completion of seed germination and seed storability. The enzyme catalase has been employed for determining viability of seeds. The plan of the present work was to explore the relationship between catalase activity and germination of four Abies taxa. For this purpose, seeds which belong to four Abies taxa (Abies nordmanniana subsp. equi-trojani, A. cilicica, A. nordmanniana ssp. bornmuelleriana, A. nordmanniana ssp. nordmanniana) collected from different provenances in 2010 and 2011 harvesting years were used. Germination percentages and catalase enzyme activities of different Abies taxa were measured. Our results demonstrate that Abies seeds had different germination percentage and catalase enzyme activity. Abies nordmanniana subsp. equi-trojani seeds which are collected from Edremit-Gürgendag have higher germination percentage and catalase activity (P<0.05). Other populations of Abies did not differ from each other. In a conclusion, high activity of catalase enzyme refers to viability and quality of seed in Abies taxa.
DergiPark (Istanbul University), Jun 1, 2008
Özet Türkiye ormancılığında doğal gençleştirme alanlarındaki başarı 291 sayılı tamime göre (Klasi... more Özet Türkiye ormancılığında doğal gençleştirme alanlarındaki başarı 291 sayılı tamime göre (Klasik yöntem) belirlenmektedir. Ancak, klasik yöntem sadece alanda mevcut gençliğin miktarını baz almakta, gençliğin alana dağılış şeklini göz ardı etmektedir. Çalışmada; Karadere Orman İşletme Müdürlüğü'nde klasik yönteme göre oldukça yüksek başarı derecesine sahip doğal gençleştirme alanlarının "Sıfır Alan Yöntemine" göre heterojen dağılış gösterdiği saptanmıştır. Bu sonuçtan, klasik yönteme göre gençlik başarısı hakkında daha güvenilir sonuç veren sıfır alan yönteminin doğal gençleştirme alanlarında kullanımı tartışılmalıdır. Ayrıca, karışık meşcere kuruluşlarında tek türü dikkate alan gençleştirme yöntemi seçimi ve kullanımının önemle irdelenmesi gerekmektedir.
DergiPark (Istanbul University), Jun 1, 2007
In this study, the Bolu-Alada originated scots pine seeds were sowed onto the seedbeds of Bolu Fo... more In this study, the Bolu-Alada originated scots pine seeds were sowed onto the seedbeds of Bolu Forest Nursery after soaking for 24 hours into the 200-400-600 ppm concentration of GA 3 , 50-150-300 ppm concentration of IBA+NAA and 20-50-100 ppm concentration of Kinetin for determining the effects of plant growth regulators (phytohormones) on the morphological characters of Scots pine (Pinus silvestris L.) seedlings. After 36 days when the primary leaves emerged, the seedlings were lifted and some parameters as root collar diameter (RCD), root length (RL), hypocotyls length (HL), epicotyls length (EL), cotyledon number (CN), cotyledon length (CL), root fresh weight (RFW), stem fresh weight (SFW), root dry weight (RDW), stem dry weight (SDW) were measured on them. By investigating morphologic characters of the seedlings, determination of the advantage of plant growth regulators on seedling growth and production was aimed. There are no statistical differences on RCD, CL, CN, SDW characters after the treatments. The biggest values of RCD (0,87 mm), CN (6.55 unit), CL (2.23 cm), SDW (6,36 mg) were obtained for IBA+NAA. Despite of the fact that there is no effect of hormone x dose interaction on RL, the biggest RL (7,95 cm) was obtained for 600 ppm GA 3. Hormone and hormone x dose interaction affect the EL and HL. The biggest HL and EL values (HL = 1.30 cm, EL = 0.34 cm) were determined for GA 3 , as to the dose for 400 ppm GA 3 (HL = 1.417 cm, EL = 0.37 cm). The hormone kind affects the RFW, SFW and RDW and the biggest values were obtained as 22,33 mg, 36,63 mg, and 3,82 mg for IBA+NAA, respectively.
Kastamonu University Journal of Forestry Faculty, Jun 1, 2007
Bu çalı mada; Kastamonu-Hanönü ilçesindeki Karadere orijini 9 ya ındaki karaçam (Pinus nigra Arno... more Bu çalı mada; Kastamonu-Hanönü ilçesindeki Karadere orijini 9 ya ındaki karaçam (Pinus nigra Arnold. subsp. pallasiana (Lamb.) Holmboe) tohum bahçesinde; kozalak, tohum ve fidecik özelliklerinin klonal varyasyonu ara tırılmı tır. Bu amaçla; bahçeyi olu turan 30 klonda kozalak sayısı (KoS) ve kozalak ba lama yüzdeleri (KoBY), rasgele seçilen 9 klonda ise; kozalak a ırlı ı (KoA), kozalak boyu (KoB), kozalak eni (KoE), kozalaktaki tohum sayısı (KoTS), 1000 dane a ırlı ı (1000 DA), çimlenme hızı (ÇH), çimlenme yüzdesi (ÇY), kotiledon sayısı (KS), hipokotil boyu (HB) ve kökçük boyu (KB) belirlenmi tir.
Sigma Journal of Engineering and Natural Sciences, 2005
In this study; 2+0 aged, bare rooted, Anatolian black pine seedlings, produced at Kastamonu-Taşkö... more In this study; 2+0 aged, bare rooted, Anatolian black pine seedlings, produced at Kastamonu-Taşköprü forest nursery by using four different seed origins were used. Some morphological characters of the seedlings were determined and the appropriateness to TS 2265/February 1988 and the more suitable standard to the EU norms named TS 2265/March 1976, were examined. In addition, the sensitiveness of quality classification of TSI for the seedlings were checked with discriminate analysis. According to the classifications of February 1988 and March 1976 standards, 85.5% and 62.7% of the investigated seedlings were determined as inconvenient seedlings, respectively. It was determined that the origin of Boyabat had the highest RCD (2.7 mm) and SH (15.7 cm) values among the four seed origins. For this reason, the using of this origin at dry and moist regions will be advisable. The February 1988 standard has the higher values than March 1976 standard from the point of the SH and S/R criteria. Nevertheless, a new standard suited to EU norms as to the RCD, should be developed.
Ormancılık Araştırma Dergisi
Türkiye’de verimli ormanlar kuran meşe ormanı taksonlarından biri sapsız meşedir (Quercus petraea... more Türkiye’de verimli ormanlar kuran meşe ormanı taksonlarından biri sapsız meşedir (Quercus petraea (Matt.) Liebl.). Bu takson; Q. p. subsp. petraea, Q. p. subsp. iberica ve Q. p. subsp. pinnatiloba olmak üzere üç alt tür ile temsil edilmektedir. Subsp. petraea, yükseltisi 200 m’lerde, Bolu ve Kırklareli’de; Subsp. iberica, yükseltisi 0-1600 m’lerde, İstanbul, Kastamonu, Artvin, Balıkesir, Bursa, Eskişehir, Kırklareli, Kütahya, Sakarya, Sinop, Tokat, Trabzon’da; Subsp. pinnatiloba ise yükseltisi 1200-2200 m’lerde, Adana, Hakkâri, Bingöl, Elazığ, Hatay, İçel, Malatya, Kahramanmaraş, Muş, Tunceli, Van yörelerinde doğal yayılış göstermektedir. Türkiye’de sapsız meşe için OGM adına Orman Ağaçları Tohum Islah Araştırma Müdürlüğü Enstitüsünce dokuz adet tohum meşceresi tescil edilmiş ve Ulusal Kayıt (UK) nosu almış olup, bunlardan beşi daha sonra farklı gerekçelerle iptal edilmiş olup, aktüel olarak dört adet tescilli tohum meşceresi bulunmaktadır. Halen tohum meşceresi vasfını taşıyan meşc...
CERNE
The influence of effective microorganisms on physiological characteristics of containerized tauru... more The influence of effective microorganisms on physiological characteristics of containerized taurus cedar (Cedrus libani A. Rich.
Anadolu Orman Araştırmaları Dergisi
Snags are a major structural and functional component in oriental beech (Fagus orientalis Lipsky.... more Snags are a major structural and functional component in oriental beech (Fagus orientalis Lipsky.) because of their high degree of naturalness in northern Anatolia forests. This research, as a case study, was conducted in the even-aged and pure oriental beech managed forest in Bartın. In this research where the effect of exposure and elevation, zone factors on stability index, the number and volume of snags (standing coarse deadwood: CDWsnags) were examined. It was found that exposure did not affect the stability index, number and volume of CDWsnags. However, there is a significant difference among the elevation zone on the number of CDWsnags, their volume and stability index (P≤0,000). It was found that there is an average volume of 8.87 m3/ha of CDWsnags. The diameter of the snags is distributed between 32 and 72 cm. In addition, a strong positive correlation was determined between the number of CDWsnags and the stability index (r= 0,95), height and breast diameter of CDWsnags (r ...
DergiPark (Istanbul University), Mar 1, 2009
Çalışma, 1995 yılında Kastamonu'da 30 adet klon ile tesis edilen Araç-Dereyayla orijinli Taşköprü... more Çalışma, 1995 yılında Kastamonu'da 30 adet klon ile tesis edilen Araç-Dereyayla orijinli Taşköprü-Tekçam sarıçam (Pinus sylvestris L.) klonal tohum bahçesinde gerçekleştirilmiştir. Araştırmada, tohum bahçesindeki klonların çiçeklenme fenolojisi 2006 ve 2007 yıllarında incelenmiş, göstermiş oldukları farklılıklar tespit edilmiştir. Fenolojik gözlemler sırasında dişi çiçeklerde altı, erkek çiçeklerde sekiz gelişim evresi ayırt edilmiştir. Tozlaşma dönemi çiçeklenme fenolojileri incelendiğinde; 2006 ve 2007 yıllarında erkek çiçeklerin polen yayım dönemi, Mayıs ortası-Haziran ortası arasında gerçekleşmiştir. Dişi çiçeklerin 2006 yılı polen kabulüne başlama ve bitiş dönemi, Mayıs ortası-Haziran ortası olarak belirlenmiştir. 2007 yılında ise dişi çiçeklerin polen kabulüne başlama ve bitiş dönemi Mayıs ortası-Haziranın ilk haftası arasında gerçekleşmiştir. Erkek çiçek polen yayımı ile dişi çiçek polen kabul dönemleri arasında her iki yılda da, hem zamanlama hem de süre açısından bir uyum olduğu gözlenmiştir.
The authors wish to make the correction of the paper of Sarsekova et al. (2020). In the original ... more The authors wish to make the correction of the paper of Sarsekova et al. (2020). In the original paper, there was a mistake in the order of the first and the second name of the author Talghat Abbzhabnov. The correct order is Talghat Abbzhabnov. The original paper published on 11 May 2020 has been updated and both versions will be available on the paper webpage. The authors emphasize that this change does not affect the results of this research, and they apologize for any inconvenience this change may cause
Biological Diversity and Conservation, Nov 1, 2016
Fresenius Environmental Bulletin, 2018
In this study, the effects of electromagnetic field applications on sycamore maple seed were inve... more In this study, the effects of electromagnetic field applications on sycamore maple seed were investigated. The seeds were exposed to different treatment period 20, 60 and 120 min. and varied magnetic field intensities 200 and 400 mT, respectively. This study has been investigated total soluble proteins of seed, alpha amylase, glucose, fructose and starch amounts. In the result, applying of magnetic field (MF) in different intensity and duration on cold stratified and non-stratified sycamore maple seeds at +4 degrees C and 45 days, has affected the protein, enzymes, glucose and starch content of the seeds. MF affected the amount of protein in stratified seeds negatively in 20 minute 400 mT; but had a positive effect on control group of non-stratified seeds. One month after applying MT value of protein in stratified seed in 60 min. 200 mT, was increased in control groups (P<0,05). However with applying MF in process of 120 min. 200 mT alpha amylase activity of stratified seeds decreases, in stratified seeds in 60 min. 400 mT and 120 min. 200 mT process alpha amylase activity has increased. Although alpha amylase activity shows an increase one month after applying MF in stratified seeds control group in contrast to other processes, but in non-stratified seeds a decrease has been determined. The percentage of starch in seeds according to the control in stratified groups there was a decrease in 200 mT 60 minutes and 120 minutes
Artvin Çoruh Üniversitesi Orman Fakültesi dergisi, 2017