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10,783 full-text articles. Page 205 of 218.

Fruit And Seed Morphology Of Six Species Previously Placed In Malcolmia (Brassicaceae) In Turkey And Their Taxonomic Value, AYLA KAYA, MURAT ÜNAL, FEVZİ ÖZGÖKÇE, BEKİR DOĞAN, ESRA MARTİN 2011 TÜBİTAK

Fruit And Seed Morphology Of Six Species Previously Placed In Malcolmia (Brassicaceae) In Turkey And Their Taxonomic Value, Ayla Kaya, Murat Ünal, Fevzi̇ Özgökçe, Beki̇r Doğan, Esra Marti̇n

Turkish Journal of Botany

The fruit and seed morphologies of 6 species previously placed in the genus Malcolmia W.T.Aiton were examined with stereomicroscopy and scanning electron microscopy (SEM) in order to determine the significance of fruit and seed features as taxonomic characters. This study presents macro- and micromorphological characters, including fruit and seed shape, size, colour, fruiting pedicel size, fruit hair and density, seed coat pattern, epidermal cell shape, and anticlinal and periclinal cell walls. The results showed that the morphological characteristics of the fruit and seed could be used as criteria to distinguish genera and tribes. The investigated features of specimens indicated that …


Comparative Micromorphological And Phytochemical Studies On The Roots Of Three Viburnum (Caprifoliaceae) Species, KATHIRESAN PRABHU, PRADIP KUMAR KARAR, SIVA HEMALATHA, KATHIRESAN PONNUDURAI 2011 TÜBİTAK

Comparative Micromorphological And Phytochemical Studies On The Roots Of Three Viburnum (Caprifoliaceae) Species, Kathiresan Prabhu, Pradip Kumar Karar, Siva Hemalatha, Kathiresan Ponnudurai

Turkish Journal of Botany

In this study, the roots of Viburnum punctatum Buch.-Ham. ex D.Don, Viburnum coriaceum Blume, and Viburnum erubescens Wall. ex DC. were collected from the Nilgiri and Coimbatore hills in Tamil Nadu, India. Transverse sections of plant roots were prepared with the aid of a rotary microtome. The sections, each at a thickness of 10 µm, were stained and fixed in Canada balsam and the morphoanatomical features of each specimen were noted. The specimens were powdered using a mechanical grinder and were mounted in suitable media for starch grains, sclereids, druses, fibres, and vessels. Morphoanatomical features of diagnostic importance were recorded …


New Chromosome Counts Of Genus Stachys (Lamiaceae) From Turkey, ESRA MARTİN, ÖZLEM ÇETİN, EKREM AKÇİÇEK, TUNCAY DİRMENCİ 2011 TÜBİTAK

New Chromosome Counts Of Genus Stachys (Lamiaceae) From Turkey, Esra Marti̇n, Özlem Çeti̇n, Ekrem Akçi̇çek, Tuncay Di̇rmenci̇

Turkish Journal of Botany

Somatic chromosome numbers of 26 Stachys L. taxa (14 species, 11 subspecies, and 1 varietas), collected from different localities in Turkey, were counted for the first time, except for Stachys byzantina C.Koch and S. thirkei C.Koch. In this study, all of the Stachys taxa determined were somatic with chromosome numbers counted as 2n = 30. This research has made a contribution to the taxonomic revision of the genus Stachys in Turkey.


Breeding Systems And Reproductive Success On Salvia Smyrnaea, ÜMİT SUBAŞI, AYKUT GÜVENSEN 2011 TÜBİTAK

Breeding Systems And Reproductive Success On Salvia Smyrnaea, Ümi̇t Subaşi, Aykut Güvensen

Turkish Journal of Botany

The reproductive ecology of Salvia smyrnaea Boiss. (Lamiaceae) on Mount Nif along with their breeding system and reproductive success were examined. S. smyrnaea, distributed over Mount Nif (İzmir Province) at an altitude of 1510 m, is the study material of this research. To detect the stigma receptivity, the Perex test was applied to 25 young and mature flowers. To detect pollen viability, the MTT method was used. To detect the fertilisation type of the taxon S. smyrnaea, 5 different fertilisation methods were tested on the flowers of the plant. Breeding success was assessed through nutlet formation. While the enzyme activity …


New Records In The Alien Flora Of Romania (Artemisia Argyi, A. Lavandulaefolia) And Europe (A. Lancea), CULITA SIRBU, ADRIAN OPREA 2011 TÜBİTAK

New Records In The Alien Flora Of Romania (Artemisia Argyi, A. Lavandulaefolia) And Europe (A. Lancea), Culita Sirbu, Adrian Oprea

Turkish Journal of Botany

Artemisia lancea Vaniot, A. argyi H.Lév. & Vaniot, and A. lavandulaefolia DC., all native from eastern Asia, are reported as new alien taxa from Romania. A. lancea has not been recorded so far in Europe, while A. argyi and A. lavandulaefolia are naturalised in the European part of the former USSR. All 3 species were collected in the Socola railway yard in northeastern Romania; the specimens were deposited in the IASI Herbarium, at the University of Agricultural Sciences and Veterinary Medicine Iaşi. Their introduction was accidental, through the rail transport from the former USSR. The 3 species are perennial herbs, …


Contents, Discovery Editors 2011 University of Arkansas, Fayetteville

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 12 2011, Several Authors 2011 University of Arkansas, Fayetteville

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 12 2011, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Comparison Of Growing Media For Container Grown Plants, Paul Harris, David Longer, Derrick Oosterhuis, Dimitra Loka 2011 University of Arkansas, Fayetteville

Comparison Of Growing Media For Container Grown Plants, Paul Harris, David Longer, Derrick Oosterhuis, Dimitra Loka

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Greenhouse and growth chamber experiments are conducted worldwide in efforts to produce solutions that would increase yields of agronomic crops. However, the results of those experiments vary due to the many growth media being used. An experiment was conducted in the fall of 2010 to identify a broadly acceptable growth media that would produce uniform stands and optimum results in greenhouse and growth chamber settings. A total of six growth media were tested on cotton (Gossypium hirsutum) at the Arkansas Agricutural Research and Extension Center’s Altheimer Lab in Fayetteville. The plants grown in each medium were harvested six weeks after …


Morphological, Chemical, And Molecular Analyses Of Turkish Papaver Accessions (Sect. Oxytona), İSKENDER PARMAKSIZ, SEBAHATTİN ÖZCAN 2011 TÜBİTAK

Morphological, Chemical, And Molecular Analyses Of Turkish Papaver Accessions (Sect. Oxytona), İskender Parmaksiz, Sebahatti̇n Özcan

Turkish Journal of Botany

The species of the section Oxytona Bernh., classified under the genus Papaver L., are of great importance due to their medical alkaloid contents such as morphine, codeine, and thebaine. A clearly established classification system is not available for Oxytona species. The aim of this study was to find relationships among 53 accessions belonging to 3 important Oxytona species, i.e. Papaver bracteatum Lindl., P. orientale L., and P. pseudo-orientale (Fedde) Medw., using 19 different morphological characters, 1 chemical character, and 15 random amplified polymorphic DNA (RAPD) markers. Nineteen characters, including bract and sepal leaves, petal marks, and capsule shape and size …


Micromorphological Studies On Nutlet And Leaf Indumentum Of Genus Teucrium L. (Lamiaceae) In Iran, MARYAM ESHRATIFAR, FARIDEH ATTAR, KAZEM MAHDIGHOLI 2011 TÜBİTAK

Micromorphological Studies On Nutlet And Leaf Indumentum Of Genus Teucrium L. (Lamiaceae) In Iran, Maryam Eshratifar, Farideh Attar, Kazem Mahdigholi

Turkish Journal of Botany

The micromorphology of leaf indumentum and nutlet surface of 12 species belonging to the 6 sections of the genus Teucrium L. was studied by scanning electron microscope (SEM). Eight types of trichomes are identified including unbranched unicellular trichomes, unbranched multicellular trichomes, sessile glands, subsessile glands, stalked-multicellular glands long clavate glandular trichomes (with 3-5 cells), trichomes with large thin-wall, trichomes with non-micropapillate basal cell, which are the most general types on the adaxial side of the leaves, and branched trichome with long axis is the exclusive type and present in Teucrium polium L. Thus, trichomes can be used as a distinctive …


Bark Anatomy Of Quercus Cerris L. Var. Cerris From Turkey, ALİ UMUT ŞEN, TERESA QUILHÓ, HELENA PEREIRA 2011 TÜBİTAK

Bark Anatomy Of Quercus Cerris L. Var. Cerris From Turkey, Ali̇ Umut Şen, Teresa Quilhó, Helena Pereira

Turkish Journal of Botany

Quercus cerris L. var. cerris has a conspicuous bark which is generally thicker than that of other Quercus L. species in Turkey. The present study aimed to provide detailed anatomical characterisation of the bark of this species, which is necessary to assess its potential. The anatomical studies were conducted on the bark samples of nine 70- to 80-year-old trees growing in 3 sites of Andırın district from Kahramanmaraş province in Turkey. For microscopic observation transverse and longitudinal sections were prepared and individual specimens were taken for maceration. The bark is composed of phloem, periderm, and a very substantial rhytidome. The …


Cicer Uludereensis Dönmez: A New Species Of Cicer (Chickpea) (Fabaceae) From Around The Fertile Crescent, Se Turkey, ALİ ASLAN DÖNMEZ 2011 TÜBİTAK

Cicer Uludereensis Dönmez: A New Species Of Cicer (Chickpea) (Fabaceae) From Around The Fertile Crescent, Se Turkey, Ali̇ Aslan Dönmez

Turkish Journal of Botany

The genus Cicer L. includes an important crop plant, chickpea, which has been used as a protein source since prehistoric times. Specimens of a native Cicer have been collected and described from south-east Turkey. This new species, Cicer uludereensis Dönmez sp. nova, is distinct from a closely allied species, Cicer isauricum P.H.Davis, by its fine and more numerous teeth per leaflet, larger stipules, and narrower fruit with almost smooth seed surface. An illustration and a distribution map of the new species are provided and observations on the population are discussed.


Pollen Morphology Of The Genus Seseli L. (Umbelliferae) In Turkey, EBRU DOĞAN GÜNER, HAYRİ DUMAN, NUR MÜNEVVER PINAR 2011 TÜBİTAK

Pollen Morphology Of The Genus Seseli L. (Umbelliferae) In Turkey, Ebru Doğan Güner, Hayri̇ Duman, Nur Münevver Pinar

Turkish Journal of Botany

Morphological features of pollen of 11 Turkish taxa belonging to the complex genus Seseli L. were examined using light and scanning electron microscopy. On the basis of exine sculpturing, 3 main types were recognised in Seseli: Type 1, rugulate at equator, psilate-perforate at pole; Type 2, striate-reticulate at equator, rugulate at pole; and Type 3, rugulate at equator, striate at pole. The study revealed that palynological characters display taxonomic significance in the genus.


Micropropagation And Root Culture Of Turkish Endemic Astragalus Chrysochlorus (Leguminosae), SEMRA HASANÇEBİ, NESLİHAN TURGUT KARA, ÖZGÜR ÇAKIR, ŞULE ARI 2011 TÜBİTAK

Micropropagation And Root Culture Of Turkish Endemic Astragalus Chrysochlorus (Leguminosae), Semra Hasançebi̇, Nesli̇han Turgut Kara, Özgür Çakir, Şule Ari

Turkish Journal of Botany

Efficient micropropagation and root culture protocols were developed for the endemic Astragalus chrysochlorus Boiss. & Kotschy. A high frequency of shoot formation (100%) and maximum multiplication (13 shoots per hypocotyl explant) were achieved on Murashige and Skoog (MS) media supplemented with 0.5 mg/L trans-Zeatin riboside (ZR). By using single regenerated hypocotyl explants, rooting was achieved at a rate of 93% on MS medium containing 2% sucrose without growth regulators. High frequency callus initiation and growth were achieved when single hypocotyl explants were inoculated on MS medium supplemented with 0.5 mg/L 2,4-Dichlorophenoxyacetic acid. Plant regeneration through indirect organogenesis was achieved on …


The Effect Of In Vitro Competition On Shoot Regeneration From Hypocotyl Explants Of Linum Usitatissimum, MUSTAFA YILDIZ, ÇAĞLAYAN SAĞLIK, CANSU TELCİ KAHRAMANOĞULLARI, EMİNE GÜLDEN ERKILIÇ 2011 TÜBİTAK

The Effect Of In Vitro Competition On Shoot Regeneration From Hypocotyl Explants Of Linum Usitatissimum, Mustafa Yildiz, Çağlayan Sağlik, Cansu Telci̇ Kahramanoğullari, Emi̇ne Gülden Erkiliç

Turkish Journal of Botany

This study was carried out to investigate the relationship between in vitro competition and stress, and their effects on tissue culture response of Linum usitatissimum L. hypocotyl explants. Competition among explants was achieved by varying the spacing among the explants cultured. Four different culture spacing distances were used: 0.5, 1.0, 1.5, and 2.0 cm. Six weeks after culture initiation, hypocotyl fresh and dry weights, shoot regeneration percentage, shoot number per hypocotyl, regenerated shoot length, total shoot number per petri dish, and total chlorophyll content were recorded. The results showed that encouraging competition among explants by decreasing spacing among them from …


New Ascomycete Records For The Macrofungi Of Turkey, HAKAN ALLI, MUSTAFA IŞILOĞLU, MEHMET HALİL SOLAK 2011 TÜBİTAK

New Ascomycete Records For The Macrofungi Of Turkey, Hakan Alli, Mustafa Işiloğlu, Mehmet Hali̇l Solak

Turkish Journal of Botany

Anthracobia melaloma, Scutellinia barlae (Pyronemataceae), and Pseudoplectania vogesiaca (Sarcosomataceae) ascomycetous members of macrofungi collected from Muğla and Antalya provinces are recorded for the first time from Turkey. Anthracobia and Pseudoplectania are also new records at genus level.


Rare And Endemic Species: Why Are They Prone To Extinction?, KANİ IŞIK 2011 TÜBİTAK

Rare And Endemic Species: Why Are They Prone To Extinction?, Kani̇ Işik

Turkish Journal of Botany

A species is considered to be "rare" if it exhibits any one of the following attributes: (1) naturally occurs in a narrow geographical area, (2) occupies only one or a few specialised habitats, (3) forms only small population(s) in its range. An "endemic" species, however, grows naturally in a single geographical area, the size of which could be either narrow or relatively large. Not all endemic species are rare, just as not all rare species must necessarily be endemic. Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) …


The Effect Of Thidiazuron On The In Vitro Shoot Development Of Endemic Astragalus Cariensis In Turkey, SEMİHA ERİŞEN, EMİNE ATALAY, MUSTAFA YORGANCILAR 2011 TÜBİTAK

The Effect Of Thidiazuron On The In Vitro Shoot Development Of Endemic Astragalus Cariensis In Turkey, Semi̇ha Eri̇şen, Emi̇ne Atalay, Mustafa Yorgancilar

Turkish Journal of Botany

Thidiazuron (TDZ) is a cytokinin-like substance that has often been used for shoot regeneration in recent years. We observed the effect of TDZ on callus formation and shoot regeneration from leaf and petiole explants of the endemic species Astragalus cariensis Boiss. Explants were cultured on Murashige and Skoog (MS) media including TDZ (in concentrations of 0.2, 0.4, or 0.6 mg/L) or in combination with \alpha-naphthaleneacetic acid (NAA) (in concentrations of 0.2 or 1.0 mg/L). Significant variations in the frequency of callus formation and the morphogenesis of the callus were obtained depending on the explant type. Petiole explant was determined to …


Saplings 2011, Sean M. Goins, Joseph Braner, Amy L. Myers, Charlie Jackson, Julia I. Chapman, Ryan W. McEwan 2011 University of Dayton

Saplings 2011, Sean M. Goins, Joseph Braner, Amy L. Myers, Charlie Jackson, Julia I. Chapman, Ryan W. Mcewan

Data Files: Drew Woods Permanent Plots

Sapling data (woody species >50 centimeters in height and <2.5 cm diameter at breast height) collected in 2011 at Drew Woods State Nature Preserve in Darke County, OH. Data key is provided in a supplemental file.


Overstory 2011, Sean M. Goins, Joseph Braner, Amy L. Myers, Charlie Jackson, Albert J. Burky, Julia I. Chapman, Ryan W. McEwan 2011 University of Dayton

Overstory 2011, Sean M. Goins, Joseph Braner, Amy L. Myers, Charlie Jackson, Albert J. Burky, Julia I. Chapman, Ryan W. Mcewan

Data Files: Drew Woods Permanent Plots

Overstory data (woody species ≥2.5 centimeters in diameter at breast height) collected in 2011 at Drew Woods State Nature Preserve in Darke County, OH. Data key is provided in a supplemental file.


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