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2000

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Articles 241 - 255 of 255

Full-Text Articles in Botany

Sclerophylly In Fraxinus Angustifolia Vahl. Subsp. Oxycarpa (Bieb. Ex Willd.)Franco & Rocha Afonso And Laurus Nobilis L. And Edaphicrelations Of These Species, Hamdi̇ Güray Kutbay Jan 2000

Sclerophylly In Fraxinus Angustifolia Vahl. Subsp. Oxycarpa (Bieb. Ex Willd.)Franco & Rocha Afonso And Laurus Nobilis L. And Edaphicrelations Of These Species, Hamdi̇ Güray Kutbay

Turkish Journal of Botany

Sclerophylly and foliar nutrient status and interactions between these factors in ash ( Fraxinus angustifolia Vahl. subsp. oxycarpa (Bieb. ex Willd.) Franco & Rocha Afonso) and laurel ( Laurus nobilis L.) species were examined. In addition, correlations between sclerophyll index and leaf and soil parameters were investigated. It was found that there were statistically significant differences between the mid-growing season and the end of the growing season with respect to leaf N % concentration, N/Ca and N/Mg ratios in ash, and with respect to leaf N % concentration and soil K % concentration in laurel. The sclerophyll index was negatively …

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The Flora Of Gülümbe Dagi (Bilecik-Turkey)Atila Ocak, Süleyman Tokur, Ati̇la Ocak, Süleyman Tokur Jan 2000

The Flora Of Gülümbe Dagi (Bilecik-Turkey)Atila Ocak, Süleyman Tokur, Ati̇la Ocak, Süleyman Tokur

Turkish Journal of Botany

This paper deals with the floristical characteristics and the taxa of the vascular plants of Gülümbe Dagi. Between the years 1992 and 1995, 1035 plant specimens were collected from the study area. After the identification of these specimens, 456 taxa at specific and subspecific ranks belonging to 74 families were determined. Sixty-three taxa were defined as new records for the A2 square. The largest family was found to be Asteraceae (52 species) and the second largest was Fabaceae (51 species). The largest genera were AlyssumL. and Salvia L. (8 species each). The phytogeographical spectrum of the species was found to …

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The Effects Of Temperature And Gibberellic Acid On Germination Of Eranthishyemalis (L.) Salisb. Seeds, Ruki̇ye Tipirdamaz, Ayşe Ni̇hal Gömürgen Jan 2000

The Effects Of Temperature And Gibberellic Acid On Germination Of Eranthishyemalis (L.) Salisb. Seeds, Ruki̇ye Tipirdamaz, Ayşe Ni̇hal Gömürgen

Turkish Journal of Botany

In this study, the effects of different temperatures and exogenous gibberellic acid (GA 3) treatments on the germination of Eranthis hyemalis (L.) Salisb. seeds were studied. E. hyemalis seeds were exposed to the germination process at +4 °C and +23 °C in distilled water (control) and 0.10 , 5 and 10 mM concentrations of gibberellic acid (GA 3). While no germination was observed at +23 °C either in the control group or in the germination dishes where GA 3 was applied, at +4 °C, both in the control group (except for the 60th and 75th days) and with the all …

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The Phenolic Chemistry Of Lappula Squarrosa(Retz.) Dumort., L. Barbata (Bieb.) Gurke And L. Microcarpa(Ledeb.) Gurke Species, Zeki̇ Apaydin, Mahmut Bi̇lgener Jan 2000

The Phenolic Chemistry Of Lappula Squarrosa(Retz.) Dumort., L. Barbata (Bieb.) Gurke And L. Microcarpa(Ledeb.) Gurke Species, Zeki̇ Apaydin, Mahmut Bi̇lgener

Turkish Journal of Botany

The aim of this research was to study the phenolic chemistry of Lappula squarrosa (Retz.) Dumort., L. barbata (Bieb.) Gurke and L. microcarpa (Ledeb.) Gurke. The specimens were sorted into three groups according to their general morphological features. Nine morphological characters were determined in each group and measured. According to FisherÕs test, four of these characters which belong to fruit morphology had a difference of 95 %. Each group was diagnosed and were found to belong to L. squarrosa, L. barbata and L. microcarpa. The specimens were hydrolyzed in hydrochloric acid and were extracted with isoamyl alcohol, ethanol and ethylacetate. …

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Galeropsidaceae, A New Family For The Mycobiota Of Turkey, Gürsel Hatat, Aysun Uzun Pekşen Jan 2000

Galeropsidaceae, A New Family For The Mycobiota Of Turkey, Gürsel Hatat, Aysun Uzun Pekşen

Turkish Journal of Botany

The Galeropsidaceae, an interesting basidiomycete family is reported for the first time from Turkey. Galeropsis lateritia (Watling) Moreno, Heykoop & Illana belonging to this family was found in the Samsun province.

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Ecological Wood Anatomy Of Turkish Rhododendron L. (Ericaceae). Intraspecific Variation, Nesi̇me Merev, Hakki Yavuz Jan 2000

Ecological Wood Anatomy Of Turkish Rhododendron L. (Ericaceae). Intraspecific Variation, Nesi̇me Merev, Hakki Yavuz

Turkish Journal of Botany

The intraspecific relationships of selected wood anatomical characters such as altitude, stem diameter, stem age and average annual ring width were investigated in five different Turkish Rhododendron L. species. Rhododendron luteumSweet. grows at an altitude of 110 to 2230 m, R. ungerniiTrautv. 900 to 2020 m, R. smirnoviiTrautv. 1600 to 2230 m, R. caucasicumPallas 1900 to 3100 m, and R. ponticumL. from sea level to 2230 m in the Eastern Black Sea Region. Although the degree of significance varies between species, correlation and multiple regression analysis indicated a significant correlation between wood anatomical characters and non-anatomical factors.

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A Neglected Lichen Collection From Turkey: Berkhamsted School Expedition 1971, Volker John, Mark R. D. Seaward, Jeff W. Beatty Jan 2000

A Neglected Lichen Collection From Turkey: Berkhamsted School Expedition 1971, Volker John, Mark R. D. Seaward, Jeff W. Beatty

Turkish Journal of Botany

Discovery of the unpublished report of the Berkhamsted School lichenological expedition to Turkey in 1971 and a reappraisal of the complementary (almost complete) collections in The Natural History Museum, London (BM), have added considerably to our knowledge of the Turkish lichen flora. In all, 171 taxa are listed, of which 21 species are new to Turkey and 220 records are new to one ore more of the 11 provinces; many additional records pre-date those made as a result of the upsurge of interest in the Turkish lichen flora over the past decade.

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The Moss Flora Of Çankırı-Eldivan Mountain, Tamer Keçeli̇, Barbaros Çeti̇n Jan 2000

The Moss Flora Of Çankırı-Eldivan Mountain, Tamer Keçeli̇, Barbaros Çeti̇n

Turkish Journal of Botany

In this study, 54 taxa out of 145 specimens were identified by the authors. These belong to 14 families and 25 genera of bryophytes. Of these, 15 taxa are new for the A2 grid-square adopted by Henderson (1961).

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The Genus Tulostoma Pers.: Pers. (Gasteromycetes) In Turkey, Ertuğrul Sesli̇, Jorge E. Wright, İbrahi̇m Türkekul Jan 2000

The Genus Tulostoma Pers.: Pers. (Gasteromycetes) In Turkey, Ertuğrul Sesli̇, Jorge E. Wright, İbrahi̇m Türkekul

Turkish Journal of Botany

Three species of Tulostoma are recorded for the Turkish mycoflora, namely, T. pluriosteum Long & Ahmad, T. squamosum Gmelin: Pers. and T. wightii Berk. Tulostoma brumale Pers.: Pers. is already known from this country. Photomicrographs of the spores under SEM are also given.

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Two New Genus Records For The Mycoflora Of Turkey, Abdullah Kaya Jan 2000

Two New Genus Records For The Mycoflora Of Turkey, Abdullah Kaya

Turkish Journal of Botany

Crucibulum laeve(Bull. ex DC.) Kambly (Nidulariaceae) and Phaeomarasmius erinaceus(Fr.) KŸhn. (Strophariaceae) were recorded, at genus level, for the first time from Turkey.

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A New Myxomycetes Record For The Turkish Mycoflora, C. Cem Ergül, Başaran Dülger Jan 2000

A New Myxomycetes Record For The Turkish Mycoflora, C. Cem Ergül, Başaran Dülger

Turkish Journal of Botany

The myxomycetes taxon Arcyria minuta Buchet is a new record for the Turkish Mycoflora.

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Monogenic Segregations In Backcross Progenies Of Capsicum Baccatumx Two Interspecific F_1 Hybrids And Some Possible Explanations For Distorted Segregation Ratios In Capsicum, A. Naci̇ Onuş, Barbara Pickersgill Jan 2000

Monogenic Segregations In Backcross Progenies Of Capsicum Baccatumx Two Interspecific F_1 Hybrids And Some Possible Explanations For Distorted Segregation Ratios In Capsicum, A. Naci̇ Onuş, Barbara Pickersgill

Turkish Journal of Botany

Monogenic segregations of certain morphological and isozymic characters were studied in backcross progenies of Capsicum baccatumL. ( Solanaceae) x two interspecific F_1 hybrids and distorted segregation ratios were noted. It was observed that isozyme markers Est-5, Idh-1, Pgm-2, and Pgi-2, and morphological marker gene P for fruit persistence showed distorted segregation ratios in the first backcross generation of both C. baccatumHawkes 6489 (P.G.Smith) x F_1 ( C. baccatum Hawkes 6489 x Capsicum cardenasii Heiser Smith) and C. baccatum SA219 (P.G.Smith) x F_1 ( C. baccatum SA219 x Capsicum eximiumA.T.Hunz). Both progenies and an excess of individuals carrying alleles inherited from …

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Germin-Like Oxalate Oxidase Activity Increase In Auxin-Treated Wheat Coleoptiles, Mahmut Çalişkan, Andrew C. Cuming Jan 2000

Germin-Like Oxalate Oxidase Activity Increase In Auxin-Treated Wheat Coleoptiles, Mahmut Çalişkan, Andrew C. Cuming

Turkish Journal of Botany

Oxalic acid or more commonly its salts, oxalates, are widely distributed throughout the plant kingdom. Oxalic acid is generally considered an inert product of metabolism and its accumulation is toxic to tissues. Therefore, the enzymes degrading oxalic acid have received considerable attention. Oxalate oxidase is an oxidoreductase which degrades oxalate into CO_2 and H_2O_2 . Recently, oxalate oxidase was shown to have high amino acid homology with germin proteins and at the same time cereal germin proteins were shown to have oxalate oxidase activity. Germin gene expression was shown to be auxin responsive. It was well demonstrated that coleoptile cells …

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Structure Of The Stigma And Style In Capsicum Eximiumand The Effects Of Pollination, A. Naci̇ Onuş Jan 2000

Structure Of The Stigma And Style In Capsicum Eximiumand The Effects Of Pollination, A. Naci̇ Onuş

Turkish Journal of Botany

Since the stigma surface provides the first point of contact for pollen grains, the initial pollen-pistil interaction takes place between these two structures. It is, therefore, important to understand the stucture of the stigma, as well as the style, in order to reveal the nature of pollen-pistil interaction. The aim of this study was to gather more information about interactions between pollen and pistil in Capsicum eximium A.T.Hunz Solanaceae by studying immature, mature unpollinated and mature pollinated styles. It was found that most features of the stigma and style of C. eximiumresembled those of other genera in the Solanaceae.

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An Autecological Study On Iris Histrioides Foster (Iridaceae) Distributed In The Central Black Sea Region, Nezahat Kandemi̇r, Ali̇ Engi̇n Jan 2000

An Autecological Study On Iris Histrioides Foster (Iridaceae) Distributed In The Central Black Sea Region, Nezahat Kandemi̇r, Ali̇ Engi̇n

Turkish Journal of Botany

Iris histrioides Foster, a Euxinian and endemic element, was investigated in terms of its phenological and ecological properties. Some elements taken from the above-and below-ground parts of the plant in the vegetative and generative growth periods have been analyzed. According to the results of the analysis, N%,P% and K% contets are high in above-ground parts during the vegetative growth phase. In addition, soil samples were collected from 0-20 cm depth and analyzed physically and chemically.

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