Taxonomy, morphology and palynology of Aegilops vavilovii (Zhuk.) Chennav. (Poaceae: Triticeae)

Cabi, Evren
Doğan, Musa
Aegilops vavilovii (Zhuk.) Chennav., a rare species, was collected from Southeast Anatolia, Turkey. During the field studies of the project "Taxonomic revision of Tribe Triticeae in Turkey", Ae. vavilovii was accidentally recollected from three localities in Sanliurfa and Mardin provinces in 2007 and 2008, respectively. The main objective of this study is to shed light on the diagnostic characteristics of this rare species including its morphological, palynological and micro morphological features. Moreover, an emended and expanded description, distribution, phenology and ecology of this rare species are also provided. A. vavilovii and A. crassa are naturally found in the Southeastern part of Turkey and they share similar morphological features that caused a confused taxonomy. Pollen grains of A. vavilovii are heteropolar, monoporate and spheroidal (A/B: 1,13) typically as Poaceous. However, it generally, prefers clayish loam soils that are slightly alkaline (pH 7.7) with low organic content (1.54%). Although it is a rare species with very narrow area of distribution, very few samples have been represented in ex situ collections and the species has not been involved in any in situ conservation activities to save its genetic resources in Turkey.


Verbascum eskisehirensis sp nov (Scrophulariaceae) from central Anatolia, Turkey
Karaveliogullari, Faik Ahmet; Ocak, Atilla; EKİCİ, MURAT; Cabi, Evren (Wiley, 2009-01-01)
Verbascum eskisehirensis Karavel., Ocak & Ekici sp. nov. (sect. Bothrosperma Murb.) is described and illustrated from Turkey. This new species is confined to B3 Eskisehir in central Anatolia. A morphological comparison is made with the closely related species; V. oreophilum K. Koch and V. pyramidatum M. Bieb. In addition, a cluster analysis was conducted and a distribution map of the new species and the related species is also given.
Synthesis of new ferrocenyl substituted quinoxaline derivative monomers, their polymerization and electrochemical behaviors
Özdemir, Şerife; Doğan, Özdemir; Toppare, Levent Kamil; Department of Chemistry (2010)
5,8-Bis(2,3-dihydrothieno[3,4b][1,4]dioxin-5-yl)-2-(naphthalen-2-yl)-3-ferrocenyl-4a,8a-dihydroquinoxaline (DEFNQ), 5,8-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2-(phenyl)-3 ferrocenylquinoxaline (DEFPQ) and 5,8-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2,3-di(naphthalen-2-yl)quinoxaline (DEDNQ) were synthesized, electrochemically polymerized and electrochromic properties of resultant polymers were investigated. For the characterization of the monomers Nuclear Magnetic Resonance (1H-NMR, 13C-NMR) w...
Leaf anatomy of Agropyron Gaertn. (Gramineae) in Turkey
Mavi, D. Ozlem; Doğan, Musa; Cabi, Evren (2011-01-01)
Agropyron cristatum (L.) Gaertn. is represented by 2 subspecies in Turkey, namely subsp. incanum (Nabelek) Melderis and subsp. pectinatum (M.Bieb.) Tzvelev. This study examines the taxonomic significance of the leaf properties of the taxa of Agropyron Gaertn., comprising diagnostic anatomical features obtained from leaf transverse sections as well as leaf surface micromorphology. Results of the study show that most of the characters, such as the shape of the leaf blades; the size and number of stomata; the ...
Synthesis and characterization of fluorine-substituted polyanilines
Cihaner, A; Önal, Ahmet Muhtar (Elsevier BV, 2001-09-01)
Poly(2-fluoroaniline), P2FAN, poly(3-fluoroaniline). P3FAN. and poly(4-fluoroaniline), P4FAN, have been synthesized from fluorine substituted aniline monomers in aqueous acidic medium using potassium dichromate as oxidizing agent. Characterization of polymer products has been carried out using FTIR, and NMR spectroscopic techniques. Thermal analysis of polyfluoroaniline powders was also investigated using differential scanning calorimetry and thermogravimetric analysis. To compare the structural properties ...
A stable carbonyl-pyrazine-metal(0) complex: Synthesis and characterization of cis-tetracarbonylpyrazinetrimethylphosphitetungsten(0)
Alper, Fatma; Kayran, Ceyhan; Özkar, Saim (2006-06-01)
Pentacarbonylpyrazinetungsten(0), (CO)(5)W(pyz), is not stable in solution in polar solvents such as acetone or dichloromethane and undergoes conversion to a bimetallic complex, (CO)(5)W(pyz)W(CO)(5) plus free pyrazine. These three species exist at equilibrium. Using the quantitative H-1 NMR spectroscopy, the equilibrium constant could be determined to be K-eq = (5.9 +/- 0.8) x 10(-2) at 25 degrees C. Introducing a second pyrazine ligand into the molecule does not stabilize the complex, as CiS-W(CO)(4)(pyz)...
Citation Formats
E. Cabi, M. Doğan, H. ÖZLER, G. AKAYDIN, and A. KARAGÖZ, “Taxonomy, morphology and palynology of Aegilops vavilovii (Zhuk.) Chennav. (Poaceae: Triticeae),” AFRICAN JOURNAL OF AGRICULTURAL RESEARCH, pp. 2841–2849, 2010, Accessed: 00, 2020. [Online]. Available: