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Articles 1 - 30 of 55
Full-Text Articles in Life Sciences
Vegetation Mosaic Around The First Center Of Tourism Development In The Uludağ Mountain, Bursa-Turkey, Gürcan Güleryüz, Hülya Arslan, Mustafa Gökçeoğlu, Helmut Rehder
Vegetation Mosaic Around The First Center Of Tourism Development In The Uludağ Mountain, Bursa-Turkey, Gürcan Güleryüz, Hülya Arslan, Mustafa Gökçeoğlu, Helmut Rehder
Turkish Journal of Botany
In this study, the vegetation mosaic is determined by aerial photography and Geographical Information Systems (GIS) techniques around the first center of tourism development in the Uludağ Mountain. The cover of plant communities and vegetation types is calculated in both absolute values (ha) and as percentage (%) of the total research area. Dwarf shrub communities ( Vaccinium myrtillus Juniperus communis, Juniperus communis and Astragalus angustifoliis comm.) are dominant with a cover of 53%. There ore some environmental problems caused by misuse of the area. The ruderal formation is dominant on the disturbed lands. It is widespread around the hotels, at …
Phenotypic Plasticity In Turkish Commelina Communis L.(Commelinaceae) Populations, Hamdi Güray Kutbay, Fevzi Uçkan
Phenotypic Plasticity In Turkish Commelina Communis L.(Commelinaceae) Populations, Hamdi Güray Kutbay, Fevzi Uçkan
Turkish Journal of Botany
Phenotypic plasticity was investigated in Commelina communis L. ( Commelinaceae), which is a perennial herb native to temperate Asia (China) and widely naturalised in the central and eastern Black Sea regions were investiguted C. communis has a relatively high ecological tolerance with respect to climatic and soil factors. It was found that the shoot length, leaf width, number of branches, dead leaves and flowers, root:shoot ratio, total -flower- and root biomasses, flower and root ni-trogen and RE 1 and RE 2 varied significantly in among the three populations. In addition, there were statistically important correlations between reproductive effort (RE) values …
Effects Of Cytozyme Crop Plus On Lycopersicum Esculentum Mill. Plant Yield, Meliha Gemi̇ci̇, Avni Güven, Pervin Katmer
Effects Of Cytozyme Crop Plus On Lycopersicum Esculentum Mill. Plant Yield, Meliha Gemi̇ci̇, Avni Güven, Pervin Katmer
Turkish Journal of Botany
The effects of various concentrations of Cytozyme Crop Plus (CCP) on Lycopersicum esculentum Mill. plant yield have been examined in this study. Single doses of 50 and 100 ml per decare of CCP were pulverized on seedlings of 15 cm height after second flowering, which have been given normal care. In addition, 50 ml per decare has been aplied twice in a separate parcel. The data obtained from the three replicates organized according to random blocks trial pattern have been compared with the control. In the trial parcel where daily irrigation and care procedures were carried out, specific yield values …
Spectrophotometric Determination Of Chlorophyll - A, B And Totalcarotenoid Contents Of Some Algae Species Using Different Solvents, Şükran Dere, Tohit Güneş, Rıdvan Sivaci
Spectrophotometric Determination Of Chlorophyll - A, B And Totalcarotenoid Contents Of Some Algae Species Using Different Solvents, Şükran Dere, Tohit Güneş, Rıdvan Sivaci
Turkish Journal of Botany
In our study, chlorophyll a, chlorophyll b and the total amounts of carotenoids in Cladophora glomerata (L.) Kuetzing, Ulva rigita L., Codium tomentosum (Huds.) Stackh and Cladostephus verticillatus Ag. species were determined. Methanol, acetone and diethyl ether were used as solvents. The chlorophyll amount in Cladophora glomerata L. Kuetzing, species and carotenoids in Cladostephus verticillatus Ag. were found the highest. It was observed that sonication had no much contribution to the extraction.
Diatoms (Bacillariophyta) In The Phytoplankton Of Keban Reservoir And Their Seasonal Variations, A. Kadri Çeti̇n, Bülent Şen
Diatoms (Bacillariophyta) In The Phytoplankton Of Keban Reservoir And Their Seasonal Variations, A. Kadri Çeti̇n, Bülent Şen
Turkish Journal of Botany
The seasonal variations of planktonic diatoms occurring in the Keban and Içme regions of Keban Reservoir were in-vestigated over a 2-year period (January 1991 - December 1992). A total of 104 diatom taxa were determined. Cyclotella ocellata Pantocksek, C. kützingiana Thwaites (Centrales), Asterionella formosa Hassall and Fragilaria crotonensis Kitton (Pennales) were the most conspicuous diatoms in terms of frequency of occurrence and numbers of individuals in the phytoplankton. The species composition and seasonal growth properties of the diatoms differed in the Keban and Içme regions of the lake. Although the quan-tity of diatoms tended to increase in all seasons, spring …
Two New Species And A New Hybrid From Anatolia, Hayri Duman, K. Hüsnü Can Başer, Zeki Aytaç
Two New Species And A New Hybrid From Anatolia, Hayri Duman, K. Hüsnü Can Başer, Zeki Aytaç
Turkish Journal of Botany
Two new species and a new hybrid of Labiatae from south Anatolia are described and illustrated: Sideritis caesarea Duman, Aytaç et Baser, Sideritis vuralii Duman et Baser, Origanum x adanense Baser et Duman.
Nitrogen Mineralization In The Soils Of Some Grassland Communities In The Alpine Region Of Uludag In Bursa-Turkey, Gürcan Güleryüz
Nitrogen Mineralization In The Soils Of Some Grassland Communities In The Alpine Region Of Uludag In Bursa-Turkey, Gürcan Güleryüz
Turkish Journal of Botany
Nitrogen mineralization was investigated in controlled conditions (60% WHC, 20ºC) in the soil of some alpine grassland communities. A significant correlation was found between the mineralization of nitrogen and certain soil factors (pH, WHC, Total Nitrogen and Organic Carbon). It was concluded that ammonification takes place at higher rates in grasslands which are dominated by Nardus stricta L. (Poaceae) plant species, whereas nitrification occurs at a higher rates in grasslands which are dominated by Festuca cyllenica Boiss. et Heldr. and F. punctoria Sm. (Poaceae).
Determination Of Some Low Molecular Weight Carbohydrates In Thefruits Of Wild Cherry Laurel (Laurocerasus Officinalis Roem.)Using Gas Chromatography, F. Ahmet Ayaz, Asım Kadioğlu, Sema Hayirlioğlu-Ayaz
Determination Of Some Low Molecular Weight Carbohydrates In Thefruits Of Wild Cherry Laurel (Laurocerasus Officinalis Roem.)Using Gas Chromatography, F. Ahmet Ayaz, Asım Kadioğlu, Sema Hayirlioğlu-Ayaz
Turkish Journal of Botany
Some low-molecular-weight carbohydrates extracted with ethanol and water from the fruits of Laurocerasus officinalis Roem. ( Rosaceae), from two different regions in Trabzon, were analysed using gas chromatography. In one population, the analysis in the ethanol extraction showed the occurence of fructose, glucose, sorbitol and sucrose in concentrations (w/w) of 25.20; 23.00; 14.00 and 0.024 %, respectively. The same sugars, in the water extraction were found in concentrations (w/w) of 24.62; 25.59; 7.43 and 0.114 %, respectively. In the other population, these values were 25.44; 23.23; 14.24 and 0.023 for the ethanol extrac-tion, and 24.74; 24.98; 7.18 and 0.108 % …
Nonvolatile Acid Composition During Fruit Development Ofdiospyros Lotus L., F. Ahmet Ayaz, Asım Kadioğlu
Nonvolatile Acid Composition During Fruit Development Ofdiospyros Lotus L., F. Ahmet Ayaz, Asım Kadioğlu
Turkish Journal of Botany
Changes in nonvolatile acid contents during fruit development of Diospyros lotus L ( Ebenaceae) were studied. Suc-cinic, furmaric, malic, citric and azelaic acids were identified and quantified by gas chromatography. The quantities of all acids varied significantly during the fruit development. Malic and citric acids were generally predominant in all development stages. During havesting time (on day 331), fumaric acid was the most abundant acid in the fruits. Quantities of malic, succinic, fu-maric and citric acids (except azelaic acid) were found to be the highest in September (on day 271).
Pollen Flora Of Pakistan - Viii Leguminosae (Subfamily: Papilionoideae), Anjum Perveen, Muhamad Qaiser
Pollen Flora Of Pakistan - Viii Leguminosae (Subfamily: Papilionoideae), Anjum Perveen, Muhamad Qaiser
Turkish Journal of Botany
The pollen morphology of 157 species, representing 37 genera, of the subfamily Papilionoideae from Pakistan have been examined using light and scanning electron microscopy. Papilionoideae is a eurypalynous subfamily. The pollen grains are generally free, radially symmetrical, isopolar, mostly tricolporate, rarely colpate or porate. The shape is commonly prolate to sub-prolate, or prolate-spherodial, less commonly to oblate-spheroidal or sub-oblate, often perprolate. The ora is commonly la-longate or circular, rarely lolongate. Colpal membrane is psilate to sub-psilate or granulated, often scabrate. The sexine is thicker than or as thick as the nexine. A reticulate tectum type is the most common. However, …
Seasonal Variations Of Phytoplankton Blooms In Suat Ugurlu (Samsun - Turkey), Arif Gönülol, Olcay Obali
Seasonal Variations Of Phytoplankton Blooms In Suat Ugurlu (Samsun - Turkey), Arif Gönülol, Olcay Obali
Turkish Journal of Botany
The seasonal variations in phytoplankton blooms in Suat Uğurlu Reservoir were studied between July 1992 and De-cember 1993. In certain months, the species Asterionella formosa Hassal, Cyclotella planctonica Brunthaler, Melosira granulata (Ehr.) Ralfs (Bacillariophyta); Pediastrum simplex Meyen, Pandorina morum Borry (Chlorophyta) and Ceratium hirundinella (O F. Müller) Schrank (Dinophyta) produced blooms in the lake. During the study period, the measured N/P ratio in the water varied from 10.3 mg/lt to 62.5. In accordance with these variations, P. simplex, P. morum and C. hirundinella, which consume high levels of phosphate, produced blooms in summer, whereas the blooms in winter were produced …
Lichen Flora Of Sakarya Province (Turkey), Arzu Çi̇çek, Ayşen Özdemi̇r Türk
Lichen Flora Of Sakarya Province (Turkey), Arzu Çi̇çek, Ayşen Özdemi̇r Türk
Turkish Journal of Botany
This study of the lichen flora of Sakarya Province determined 159 species, which are listed along with their substrata.
The Flora Of Dörtyol And Erzin District Of Hatay Province In Turkey, Necattin Türkmen, Atabay Düzenli̇
The Flora Of Dörtyol And Erzin District Of Hatay Province In Turkey, Necattin Türkmen, Atabay Düzenli̇
Turkish Journal of Botany
The plants listed in this study were collected in the districts of Dörtyol and Erzin (Hatay) between 1989 and 1992. The study area, situated at the middle of Amanos Mountains, has a climate typical of its topographic structure and geographical position in the Mediterranean region. During floristic studies, 629 vascular plant taxa, belonging to 328 genera and 98 families were de-termined. The distribution of these taxa according to phytogeographic regions are as follows: 29.9% Mediterranean, 10.3% Euro-Siberian, 5.8% Irano-Turanian and 54.0% cosmopolitan and unknown. The number of endemic taxa are 47 (15 of them is local en-demic) and the endemism …
Flora Hellenica Vol.1 (1997), Asuman Baytop
Flora Hellenica Vol.1 (1997), Asuman Baytop
Turkish Journal of Botany
No abstract provided.
Pollen Flora Of Pakistan - Xi. Leguminosae(Subfamily: Mimosoideae), Anjum Perveen, Mohammad Qaiser
Pollen Flora Of Pakistan - Xi. Leguminosae(Subfamily: Mimosoideae), Anjum Perveen, Mohammad Qaiser
Turkish Journal of Botany
The pollen morphology of 14 species representing 5 genera of the subfamily Mimosoideae from Pakistan has been examined using light and scanning electron microscopy. Mimosoideae are eurypalynous subfamily. The pollen grains are united (polyads) or free. Single grains are tricolporate and triangular - trilobed. The pollen morphology of the subfamily is significantly useful at generic and tribal level. The 3 pollen types recognized ie, Acacia nilotica - type, Mimlosa hamata - type and Prosopis juliflora - type, correspond closely with tribal classifications.
A Study On The Epipelic And Epilithic Algaeof Sana River (Trabzon/Turkey), Saadet Kolayli, Arif Baysal, Bülent Şahi̇n
A Study On The Epipelic And Epilithic Algaeof Sana River (Trabzon/Turkey), Saadet Kolayli, Arif Baysal, Bülent Şahi̇n
Turkish Journal of Botany
The epipelic and epilithic algae of the Sana river, were investigated during the period January 1995 to December 1995. Sity taxa belonging to the Bacillariphyta, Chlorophyta, Cyanophyta and Euglenopnyta divisions were identified. Melosira varians Ag. (Coscinodiscaceae), Cocconeis placentula var. euglypta (Ehr.) Cleve (Achnanthaceae), Cymbella minuta Hilse ex Rabh. (Cymbellaceae), Navicula cryptocephala Kütz. and N. cryptocephala var. veneta Kütz. Grun. (Naviculaceae), were abundant among epipelic algae. Of the epilithic algae, it was observed that Concconeis placentula var. euglypta, Cymbella mi-nuta and Didymosphenia geminata (Lyng.) M. S. (Naviculaceae) were abundant.
Lichens Of The Akşehir District (Konya), Feray Karabulut, A. Özdemir Türk
Lichens Of The Akşehir District (Konya), Feray Karabulut, A. Özdemir Türk
Turkish Journal of Botany
Eighty-nine lichen species belonging to 33 genera from Aksehir District of Konya were determined. Staurothele frustulenta Vainio is a new record for the lichen flora of Turkey.
New Floristic Records For The Grid Square C_3(Akseki-Antalya-Turkey), Ahmet Duran, Hayri Duman
New Floristic Records For The Grid Square C_3(Akseki-Antalya-Turkey), Ahmet Duran, Hayri Duman
Turkish Journal of Botany
No abstract provided.
New Floristic Records For Square B5, Necati Çeli̇k, Erol Dönmez
New Floristic Records For Square B5, Necati Çeli̇k, Erol Dönmez
Turkish Journal of Botany
No abstract provided.
Effect Of Salt Stress And Synthetic Hormone Polystimuline K Onthe Photosynthetic Activity Of Cotton ( Gossypium Hirsutum), Rena A. Ganieva, Surhay R. Allahverdiyev, Nilufar B. Guseinova, Halil I. Kavakli, Saeedeh Nafisi
Effect Of Salt Stress And Synthetic Hormone Polystimuline K Onthe Photosynthetic Activity Of Cotton ( Gossypium Hirsutum), Rena A. Ganieva, Surhay R. Allahverdiyev, Nilufar B. Guseinova, Halil I. Kavakli, Saeedeh Nafisi
Turkish Journal of Botany
The effects of Polystimuline K (PS-K), as a cytokinin analogue, on delayed light component state (DF), intermittent fluorescence (IF) and chlorophyll (Chl) a/b ratio was investigated in the leaves of different genotypes of cotton ( Gossypium hirsutum L.) under salt stress (155 mM Na Cl) for different periods of time. It was shown that in the early perioid of salt stress, DF and IF amplitudes are decreased, which is indicative of a Photosystem II (PS II) activity decrease. It is possibly related to the damage of chlorophyll in the PS II donor site and the decrease of Chl b molecules …
The Effect Of Storage Environment On Seed Survival And The Accumulationof Chromosomal Aberrations In Pea Landraces And Cultivars(Pisum Sativum L.), H. Özkan Si̇vri̇tepe, Anna M. Dourado
The Effect Of Storage Environment On Seed Survival And The Accumulationof Chromosomal Aberrations In Pea Landraces And Cultivars(Pisum Sativum L.), H. Özkan Si̇vri̇tepe, Anna M. Dourado
Turkish Journal of Botany
The relationship between loss of seed viability and the accumulation of chromosomal aberrations was investigated in both landraces and cultivars of the pea ( Pisum sativum L.). It was shown here, for the first time with pea landraces, that loss of seed viability is associated with an increase in the frequency of chromosomal abberrations, and that even small losses of viability result in some chromosomal damage in the seeds of pea landraces as well as in the seeds of pea cultivars. In addition, for a given loss of viability the frequency of chromosomal aberrations in either low or high moisture …
Plant Regeneration From Unfertilized Ovaries Of Sugar Beet ( Beta Vulgaris L.)Cultured In Vitro, Ekrem Gürel, Songül Gürel
Plant Regeneration From Unfertilized Ovaries Of Sugar Beet ( Beta Vulgaris L.)Cultured In Vitro, Ekrem Gürel, Songül Gürel
Turkish Journal of Botany
A. method is described for plant regeneration from unfertilized ovaries isolated from a diploid male sterile sugar beet ( Beta vulgaris L.) breeding line that was developed at the Sugar Institute, Ankara, Turkey. Ovary explants were cultured on Murashige & Skoog (MS) medium containing 2.0 mg/l benzylaminopurine (BAP). Two treatments were tested by incubating all of the explants in darkness for 15 days, and then transferring one half to light and keeping the other half in darkness throughout the culture. Callus formation occurred in both treatments more or less at similar rates: however, there was a significant difference between the …
The Algae Flora Of Aksu Stream (Isparta -Turkey), Ö. Osman Ertan, Arzu Morkoyunlu
The Algae Flora Of Aksu Stream (Isparta -Turkey), Ö. Osman Ertan, Arzu Morkoyunlu
Turkish Journal of Botany
The algal flora at 4 stations chosen on Aksu Stream were investigated between September 1993 and August 1994. The flora consisted of 73 taxa belonging to the Bacillariophyta, Chlorophyta, Cyanophyta and Euglenophyta divisions. The species of Navicula Broy., Nitzschia Hassall, SurirellaTurpin, Amphora Ehr., Cymbella Agardh, Concconeis Ehr., Fragilaria Lyngbye and Synedra ulana (Nitz.) Ehr. were found to be widespread. Apart from members of Bacillariophyta, Oscillatoria limosa (Roth.). C.A.A.gardh., Oscillatoria formosa Broy. and Merismopedia punctata Meyen ( Cyanophyta) were observed to be abundant and frequent, in the year when the research was carried out. The members of other divisions were determined …
Lichen Flora Of Amanos Mountain And The Province Of Hatay, Volker John, Pier Luigi Nimis
Lichen Flora Of Amanos Mountain And The Province Of Hatay, Volker John, Pier Luigi Nimis
Turkish Journal of Botany
Two hundred forty-three lichen taxa are reported from the province of Hatay. Of these, 223 species are reported for the first time for the province of Hatay, 74 species are new records for the mediterranean region of Turkey, and 35 species are new records for Turkey. New range diagnoses are provided for these species.
Flora Of The Area Between Amasya Castleand The Villages Of Vermis And Yuvacik, Arzu Cansaran, Mustafa Aydoğdu
Flora Of The Area Between Amasya Castleand The Villages Of Vermis And Yuvacik, Arzu Cansaran, Mustafa Aydoğdu
Turkish Journal of Botany
This study covers the flora of the area between Amasya Castle and the villages of Vermis and Yuvacık. In 1994, 670 plant specimens were collected in the study area and examined. At the end of the study, 75 families, 287 genera and 412 species were determined. The total number of taxa was found to be and 412 species were determined. The total number of taxa was found to be 420, 46 (10.95%) of which are endemic. The distribution rates of the specimens into phytogeographical regions are as follows: Irano-Turanian, 15.71%; Mediterranean, 9.52%; and Euro-Siberian, 7.38%.
Four Interesting Records Of Pezizales Of The Macrofungal Flora Of Turkey, Ertugrul Sesli̇
Four Interesting Records Of Pezizales Of The Macrofungal Flora Of Turkey, Ertugrul Sesli̇
Turkish Journal of Botany
Peziza succosaBerk, Otidea concinna(Pers.) Sacc. and Humaria hemisphaerica (Wiggers:Fr.) Fuckel were recorded for the first time for the Macrofungal Flora of Turkey, and Gyromitra infula ((Schaeff.:Pers.) Quél. was studied taxonomically.
A New Taxon For Turkey: Galium Recurvum Req. Ex Dc. ( Rubiaceae), Kerim Alpinar
A New Taxon For Turkey: Galium Recurvum Req. Ex Dc. ( Rubiaceae), Kerim Alpinar
Turkish Journal of Botany
It is reported here that Galium recurvum Req. ex DC., collected from Ayvalik (province of Balikesir), is new to the Turkish flora. In this article a photograph, a short morphological description, including an illustration of the plant parts, and a distribution map are presented.
An Autecological Study On Iris Pseudacorus L. (Iridaceae), Ali Engi̇n, Nezahat Kandemi̇r, Gülcan Şenel, Mustafa Özkan
An Autecological Study On Iris Pseudacorus L. (Iridaceae), Ali Engi̇n, Nezahat Kandemi̇r, Gülcan Şenel, Mustafa Özkan
Turkish Journal of Botany
The ecological properties of Iris pseudacorus L., a marsh plant species, were investigated. The analysis of N%, P% and K% in the below-ground and above-ground parts of the plant was carried out. In addition, soil samples were collected and their physical and chemical aspects were analyzed.
Some Macrofungi Species Of European Part Of Turkey, Georgi Stojchev, Ahmet Asan, Fahrettin Güci̇n
Some Macrofungi Species Of European Part Of Turkey, Georgi Stojchev, Ahmet Asan, Fahrettin Güci̇n
Turkish Journal of Botany
This study aims to determine macrofungi species of Thrace, the European part of Turkey. Samples were collected between the years 1985 and 1997. A total of 67 species were identified and are listed here in.
A New Ascomycete Genus (Cyathipodia Boud.) Record Forthe Fungi Flora Of Turkey, M. Halil Solak
A New Ascomycete Genus (Cyathipodia Boud.) Record Forthe Fungi Flora Of Turkey, M. Halil Solak
Turkish Journal of Botany
In this study CyathipodiaBoud., a member of the Helvellaceae family (Pezizales, Ascomycetes)was recorded for the first time from Turkey.