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2008

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Articles 121 - 150 of 185

Full-Text Articles in Botany

The Effects Of Ultraviolet Radiation On The Contents Of Chlorophyll, Flavonoid, Anthocyanin And Proline In Capsicum Annuum L., Kobra Mahdavian, M. Ghorbanli, Khosrow Manochehri Kalantari Jan 2008

The Effects Of Ultraviolet Radiation On The Contents Of Chlorophyll, Flavonoid, Anthocyanin And Proline In Capsicum Annuum L., Kobra Mahdavian, M. Ghorbanli, Khosrow Manochehri Kalantari

Turkish Journal of Botany

Although ultraviolet radiation is potentially harmful, it is an important component of terrestrial radiation to which plants have been exposed since invading land. Since then, plants have evolved mechanisms to avoid and repair UV radiation damage. Therefore, it is not surprising that photomorphogenic responses to UV-B and UV-C are often assumed to be adaptations to harmful radiation. Most of the compounds accumulated are directly involved in UV-B and UV-C protection: they are either efficient in filtering excess radiation or in scavenging radicals. In this study plants were grown for 5 weeks in controlled environment room. The plants were grown in …

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The Genus Isoetes L. (Isoetaceae, Lycophyta) In South-Western Asia, Jay F. Bolin, Rebecca D. Bray, Mustafa Keskin, Lytton J. Musselman Jan 2008

The Genus Isoetes L. (Isoetaceae, Lycophyta) In South-Western Asia, Jay F. Bolin, Rebecca D. Bray, Mustafa Keskin, Lytton J. Musselman

Turkish Journal of Botany

Quillworts or Çim Eğreltisi, species of the genus Isoetes L. in Turkey and the Levant, are poorly studied despite extensive floristic studies in the region. The Flora of Turkey lists 4 taxa: Isoetes olympica A.Braun (2n = 22), I. histrix Bory var. histrix (2n = 20), I. subinermis (Bory) Cesca & Peruzzi [=I. histrix Bory var. subinermis Durieu (2n = 22)] and I. duriei Bory (2n = ca. 121). An additional species, I. anatolica Prada & Rolleri, was described in 2005 from Bolu province, and we report the first count for this species, 2n = 22. In Syria and Lebanon …

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Desert Rocks – A Habitat Which Supports Many Species That Were New To Science In The Last 40 Years, Avinoam Danin Jan 2008

Desert Rocks – A Habitat Which Supports Many Species That Were New To Science In The Last 40 Years, Avinoam Danin

Turkish Journal of Botany

Hard limestone, dolomite, sandstone, and granite constitute, under certain conditions, smooth-faced outcrops in desert areas of SW Asia. This habitat supports the most rare plant species in the desert including most of the desert endemics of Israel, Sinai, and Jordan. The smooth-faced outcrops efficiently contribute runoff water to the rock crevices and events when water is available for plant utilisation take place at a higher frequency than in the other habitats in the desert. In many sites plants are isolated and protected by impermeable rocks from competition from other plants. The rare and special plants found in this habitat include …

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Mycota Of South-West Asia, Stephan Helfer Jan 2008

Mycota Of South-West Asia, Stephan Helfer

Turkish Journal of Botany

Fungi are indispensable components of the biota of any region. Their presence and distribution are of paramount importance to flora and fauna, and their ecological function may be responsible for the presence or absence of many other species, particularly plants. Database records on fungi from South-West Asia were consulted to estimate the completeness of mycological exploration of the region. Unsurprisingly, some groups are well represented in certain areas, whereas others are lacking from SW Asian data altogether. In this paper an attempt is made to prioritise both taxonomic and geographical focal points in order to maximise the use of resources …

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Soaproot Yielding Plants Of East Anatolia And Their Potential In Nature, Mehmet Koyuncu, Ceyda Si̇bel Kiliç, Ayşegül Güvenç Jan 2008

Soaproot Yielding Plants Of East Anatolia And Their Potential In Nature, Mehmet Koyuncu, Ceyda Si̇bel Kiliç, Ayşegül Güvenç

Turkish Journal of Botany

Soaproot (Radix Gypsophilae) is an important herbal drug having medicinal and economic importance and has been collected from nature for more than 30 years. The main goal of this study was to determine soaproot yielding plant species in East Anatolia, and their potential in nature. Collected plants were determined by field studies; damage to the environment after collection was observed, and commerce, exportation, domestic utilisation of soaproot, and problems and proposed solutions were examined. Soaproot is presently obtained from a total of 7 plant species belonging to 2 genera in Turkey (6 Gypsophila L., 1 Ankyropetalum Fenzl): G. graminifolia Bark, …

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Contents, Discovery Editors Jan 2008

Contents, Discovery Editors

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

No abstract provided.

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Letter From The Dean, Lalit R. Verma Jan 2008

Letter From The Dean, Lalit R. Verma

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

No abstract provided.

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Effects Of Storage Temperature And Duration On The Milling Properties Of Rice, Tanya Pereira, Nora Cooper, Terry Siebenmorgen Jan 2008

Effects Of Storage Temperature And Duration On The Milling Properties Of Rice, Tanya Pereira, Nora Cooper, Terry Siebenmorgen

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

To maximize rice quality, it is essential to quantify the various factors that affect milling properties of rice. Rice aging, a process during which rice undergoes a series of chemical and physicochemical changes, affects head rice yield (HRY) and the rate at which HRY changes with degree of milling (DOM). This study examined effects of storage duration (0, 2, and 4 months) and storage temperature (4, 21, and 35°C) on milling properties of ‘Wells’ (long-grain) and ‘Jupiter’ (medium-grain) rice cultivars. In general, HRY increased with storage duration, most significantly for Wells cultivar. Millability curves were developed by plotting HRY vs. …

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The Effect Of Austrian Winter-Pea Cover Crop And Cow-Pea Companion Crop On Corn Yield, Matthew Marsh, David Longer, Vaughn Skinner Jan 2008

The Effect Of Austrian Winter-Pea Cover Crop And Cow-Pea Companion Crop On Corn Yield, Matthew Marsh, David Longer, Vaughn Skinner

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

Leguminous cover crops have the potential to combat the rising input cost of commercial nitrogen (N) fertilizers. This experiment examines benefits of implementing a leguminous cover and/or companion crop into a corn production system. Legumes biologically fix nitrogen from the atmosphere, adding to the nitrogen content of the soil. In this experiment Austrian winter peas (Pisum arvense) (AWP) were used as the leguminous cover crop and cowpeas (Vigna unguiculata) were used as the companion crop. A two year experiment was carried out in which winter peas were planted on half the field in the fall and allowed to grow until …

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Investigating The Utilization Of Silica Gel Packets In Drying Research-Scale Rough Rice Samples, Ashley Wiedower, George Ondier, Terry Siebenmorgen Jan 2008

Investigating The Utilization Of Silica Gel Packets In Drying Research-Scale Rough Rice Samples, Ashley Wiedower, George Ondier, Terry Siebenmorgen

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

Rice moisture content (MC) must be reduced to approximately 12.5% MC to prevent spoilage during storage. Desiccants may provide an improved method for drying research-scale rice samples. This study investigated the effects of 1) rice mass to be dried, 2) placement method of silica gel packets in rice samples, 3) regeneration and re-use of the packets, 4) drying temperature, and 5) initial MC on the effectiveness of silica gel packets to dry rough rice samples to the desired 12.5% MC. Multiple masses (200, 500, and 1000 g) of long-grain rice samples were dried using three desiccant placement treatments: 1) intimate …

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2008 Wildflower Of The Year: Virginia Spiderwort, Tradescantia Virginiana, W. John Hayden Jan 2008

2008 Wildflower Of The Year: Virginia Spiderwort, Tradescantia Virginiana, W. John Hayden

Biology Faculty Publications

Spiderwort is an herbaceous perennial that arises from a cluster of rather stout overwintering roots. Stems may be solitary or more commonly clumped, and usually grow unbranched, reaching heights up to 40 cm tall. Stems are smooth or bear scattered short hairs. Leaves are 2—5 per stem, attached by means of a leaf sheath that is 13 cm long. Leaf blades are dull green, elongate, ending in a gradually tapered tip, flat or keeled, smooth (without hairs), and 1—3.5 dm long by 0.5—2.5 cm wide. Flowers occur in tight clusters located at the stem apex; bracts similar to the leaves …

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4th Lone Star Regional Native Plant Conference, David Creech, Greg Grant, James Kroll, Dawn Stover Jan 2008

4th Lone Star Regional Native Plant Conference, David Creech, Greg Grant, James Kroll, Dawn Stover

Lone Star Regional Native Plant Conference

No abstract provided.

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Sfa Gardens Newsletter, Winter 2008, Sfa Gardens, Stephen F. Austin State University Jan 2008

Sfa Gardens Newsletter, Winter 2008, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

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A New Species Of Silene L. (Caryophyllaceae) From South Anatolia, Turkey, Yavuz Bağci Jan 2008

A New Species Of Silene L. (Caryophyllaceae) From South Anatolia, Turkey, Yavuz Bağci

Turkish Journal of Botany

Silene duralii Y. Bağcı sp. nov. from Ermenek-Kazancı (C4: Karaman province) is described and illustrated. It is closely related to S. capillipes Boiss. & Heldr., from which it differs mainly in its hairiness, leaves, and floral features. Diagnostic morphological characters are discussed and the diagnostic key for related Silene L. species, which are widespread in Turkey, is reorganized. The geographical distribution of the new species and other related species were mapped. Notes are also presented on its ecology, and biogeographical and conservation status. Chromosome count for S. duralii was 2n = 24. In addition, the seed coat surface of S. …

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Mycorrhiza Between Kobresia Bellardii (All.) Degel And Terfezia Boudieri Chatin, Ali Ammarellou, Hossein Saremi Jan 2008

Mycorrhiza Between Kobresia Bellardii (All.) Degel And Terfezia Boudieri Chatin, Ali Ammarellou, Hossein Saremi

Turkish Journal of Botany

Desert truffles collected from the Tarom region in Iran were investigated in the laboratory. According to microscopic and macroscopic studies, the species was identified as Terfezia boudieri Chatin. Field and laboratory studies showed that Kobresia bellardii (All.) Degel has ectomycorrhizal associations with Terfezia boudieri in the study area.

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Flora Of The Camili Biosphere Reserve Area (Borçka, Artvin, Turkey), Özgür Emi̇nağaoğlu, Hamdi̇ Güray Kutbay, Zafer Cemal Özkan, Arzu Ergül Jan 2008

Flora Of The Camili Biosphere Reserve Area (Borçka, Artvin, Turkey), Özgür Emi̇nağaoğlu, Hamdi̇ Güray Kutbay, Zafer Cemal Özkan, Arzu Ergül

Turkish Journal of Botany

The vascular flora of the Camili Biosphere Reserve Area (Borçka, Artvin) was studied between 2002 and 2005. In the area under review, 990 taxa belonging to 432 genera and 110 families were identified. Of the 990 taxa, 37 Pteridophytes and 953 Spermatophytes were detected. Spermatophytes also contained 7 Gymnospermae and 946 Angiospermae taxa. The richest 3 families are Compositae with 114 taxa (11.5%), Gramineae with 69 taxa (7.0%), and Leguminosae with 59 taxa (6.0%). The richest genera are Veronica L. and Campanula L. (15 taxa), followed by Geranium L. (13 taxa). The rates of taxa included in certain phytogeographical regions …

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Nutlet Surface Micromorphology Of The Genus Nepeta L. (Lamiaceae) In Turkey, Ayla Kaya, Tuncay Di̇rmenci̇ Jan 2008

Nutlet Surface Micromorphology Of The Genus Nepeta L. (Lamiaceae) In Turkey, Ayla Kaya, Tuncay Di̇rmenci̇

Turkish Journal of Botany

Nutlet characters within the genus Nepeta L. are of taxonomic significance. In this study, the nutlet morphology of 39 taxa of Turkish Nepeta species was examined using both stereoscopic and scanning electron microscopy (SEM). According to surface ornamentations, 3 main types, smooth, partly smooth, and sculptured, and 7 subtypes, undulate-ridged, cellular, reticulate, protuberance, papillate, verrucate, and tuberculate, were defined and illustrated. In addition, the unknown nutlet features of N. conferta Hedge & Lamond, N. crinita Montbret & Aucher ex Bentham, and N. viscida Boiss. are given for the first time here in detail. It is clear that external nutlet characters, …

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Physicochemical Properties And Fungitoxicity Of The Essential Oil Of Citrus Medica L. Against Groundnut Storage Fungi, Emmanuel Peter Essien, Joseph Peter Essien, Basil Nse Ita, Godwin Asukwo Ebong Jan 2008

Physicochemical Properties And Fungitoxicity Of The Essential Oil Of Citrus Medica L. Against Groundnut Storage Fungi, Emmanuel Peter Essien, Joseph Peter Essien, Basil Nse Ita, Godwin Asukwo Ebong

Turkish Journal of Botany

The in vitro antifungal effect of the essential oil of Citrus medica L. on storage fungi of Arachis hypogea L. stored for 6 months was evaluated using the disc diffusion agar method. The oil exhibited a wide spectrum of fungitoxicity, inhibiting all 14 fungus species tested. Thus, the oil can be exploited as a fumigant against storage fungi for the preservation of stored legume seeds due to its wide range of activity, non-phytotoxicity, and long-term persistence of fungitoxicity.

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Floristic Diversity, Conservation Status And Economic Value Of Miniature Sacred Groves In Kanyakumari District, Tamil Nadu, Southern Peninsular India, Selvamony Sukumaran, Solomon Jeeva, Appavoo Deva Sobhana Raj, Doraipandian Kannan Jan 2008

Floristic Diversity, Conservation Status And Economic Value Of Miniature Sacred Groves In Kanyakumari District, Tamil Nadu, Southern Peninsular India, Selvamony Sukumaran, Solomon Jeeva, Appavoo Deva Sobhana Raj, Doraipandian Kannan

Turkish Journal of Botany

The plant diversity of southern peninsular India has recently been reduced to a great extent due to anthropogenic disturbance and environmental degradation. Disturbance was the major factor responsible for fragmentation of forest vegetation; as a result of this, there is a preponderance of small patches, some of them still preserved as sacred groves because of strong religious beliefs held by the indigenous people of this region. It is thought that one of the prime utilities of sacred groves is the protection and occasional supply of medicinal plants on a sustainable basis. Most of the medicinal plants were confined to these …

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Isatis L. (Brassicaceae) In Iran: A New Record And A New Synonym, Hamid Moazzeni, Shahin Zarre, Hosein Maroofi Jan 2008

Isatis L. (Brassicaceae) In Iran: A New Record And A New Synonym, Hamid Moazzeni, Shahin Zarre, Hosein Maroofi

Turkish Journal of Botany

Isatis takhtajanii Avestisian is reported as a new record from western Iran. It is close to I. tinctoria L.; a list of diagnostic differences is provided. A more complete description of I. takhtajanii and a distribution map are given. Isatis koeiei Rech.f. is reduced to a synonym of I. raphanifolia Boiss. Iranian records of I. spectabilis Davis and I. tinctoria subsp. tomentella (Boiss.) Davis are considered to be misidentifications of I. kotschyana Boiss. & Hohen.

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Two New Records From Wetland Habitats Of The Central Alborz Mountains, Iran, Alireza Naqinezhad, Adel Jalili, Farideh Attar, Ahmad Ghahreman, Aliasghar Maasoumi Jan 2008

Two New Records From Wetland Habitats Of The Central Alborz Mountains, Iran, Alireza Naqinezhad, Adel Jalili, Farideh Attar, Ahmad Ghahreman, Aliasghar Maasoumi

Turkish Journal of Botany

Oxytropis glabra (Lam.) DC. (Papilionaceae) and Carex pycnostachya Kar. & Kir. (Cyperaceae) are reported as new records for the flora of Iran. These species occur in wetland habitats sharply embedded in steppic vegetation in the Alborz Mts., N Iran. A morphological comparison between these new records and related species is presented. Habitat features of each species are described. Newly found localities for these 2 species in Iran indicate westward extension of the distribution of these species.

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A New Record For Asia: Abrothallus Tulasnei M. Cole & D. Hawksw. (Dothideomycetes, Ascomycota) From Turkey, Mehmet Gökhan Halici, Demet Cansaran Duman Jan 2008

A New Record For Asia: Abrothallus Tulasnei M. Cole & D. Hawksw. (Dothideomycetes, Ascomycota) From Turkey, Mehmet Gökhan Halici, Demet Cansaran Duman

Turkish Journal of Botany

Abrothallus tulasnei M. Cole & D. Hawksw. 2001, a species which is only known from North America and Austria in Europe, is recorded for the first time from North Anatolia in Asia. Notes on the Turkish specimen are presented and the differences between it and the other Abrothallus De Not. species which are lichenicolous on Xanthoparmelia species are discussed

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The Effect Of Aluminium On Oxidative Stress-Related Enzyme Activity In Two Clover Species, Fayza A. Faheed Jan 2008

The Effect Of Aluminium On Oxidative Stress-Related Enzyme Activity In Two Clover Species, Fayza A. Faheed

Turkish Journal of Botany

The impact of aluminium (Al) stress on the production of hydrogen peroxide and on the activity of antioxidant enzymes involved in oxidative metabolism, such as ascorbate peroxidase (APX), peroxidase (POD), and catalase (CAT), were studied in seedlings of 2 clover species (Trifolium alexandrinum L. and Medicago sativa L.). A uniform decrease in germination and root elongation were detected as the primary signs of Al injury. A significant increase in hydrogen peroxide content was also related to an increase in Al uptake by the roots of the 2 clover species, especially at relatively highly toxic Al concentrations (2-6 mM) for 7 …

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The Flora Of Kalabak Basin (Eskişehir, Turkey), Ati̇la Ocak, Gürbüz Hüner, Ebru Ataşlar Jan 2008

The Flora Of Kalabak Basin (Eskişehir, Turkey), Ati̇la Ocak, Gürbüz Hüner, Ebru Ataşlar

Turkish Journal of Botany

The present study is concerned with the flora of the Kalabak Basin, an area lying to the south-west of the city of Eskişehir that supplies Eskişehir with drinking water. As a result of our evaluation of the plant specimens collected over 3 years (2001 to 2003), 71 families, as well as 575 taxa belonging to 307 genera, were determined to occur in the study area (569 species, 3 subspecies, and 3 varieties). Two of these taxa belong to Pteridophytes, 5 belong to Gymnosperms, and 568 belong to Angiosperms (488 Dicotyledons, 80 Monocotyledons) subdivisions. The largest families are Asteraceae (80), Fabaceae …

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Challenges Of In Situ Conservation Of Crop Wild Relatives, Vernon Hilton Heywood Jan 2008

Challenges Of In Situ Conservation Of Crop Wild Relatives, Vernon Hilton Heywood

Turkish Journal of Botany

Crop wild relatives (CWRs) will gain in importance as changing climates put both traditional and advanced cultivars under increasing stress, leading to a need for plant breeding to produce new varieties able to grow under the new climate regimes. Traditionally, the approach to the conservation of CWRs has been ex situ - the collection and maintenance of seed accessions in national, regional, and international germplasm banks, supplemented by field genebanks for species with recalcitrant seeds. More recently the need to maintain CWRs in their natural habitats (in situ) has been advocated. This is very different from on-farm conservation of traditional …

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Plant Health In Private Urban Gardens, Stephan Helfer Jan 2008

Plant Health In Private Urban Gardens, Stephan Helfer

Turkish Journal of Botany

Private garden plots present a vast area for growing plants for food or enjoyment. The Royal Botanic Garden Edinburgh provides a plant identification and advisory service to the public. This includes a service to advise on plant health problems, which is not advertised. In the past 17 years a moderate number of individuals made use of this service, with an average of 67 enquiries and some 100 specimens per year. Relevant data from the enquiries were entered into a database and analysed. The majority of enquiries concerned tree problems, followed by ornamental and fruit plant problems. Fungi ranked highest, with …

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Effects Of Nitrogen Fertilisation On Nitrate Reductase Activity, Protein, And Oil Yields Of Nigella Sativa L. As Affected By Foliar Ga_{3} Application, Shoukat Hussain Shah Jan 2008

Effects Of Nitrogen Fertilisation On Nitrate Reductase Activity, Protein, And Oil Yields Of Nigella Sativa L. As Affected By Foliar Ga_{3} Application, Shoukat Hussain Shah

Turkish Journal of Botany

The influence of foliar GA_{3} application (0, 10^{-4}, 10^{-5}, or 10^{-6} M) on the responses of Nigella sativa L. to various levels of N fertilisation (0, 176, 264, 352, or 442 mg N pot^{-1}) was analysed through 2 pot experiments conducted at the Department of Botany, Aligarh Muslim University, Aligarh, India. The N fed plants showed a significant enhancement of capsule number and seed yield plant^{-1}, and nitrate reductase activity, as well as protein and oil yields plant^{-1}, especially upon application of 352 mg N pot^{-1}. Moreover, the effect of basal N was further potentiated following an additional treatment with …

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Paris Quadrifolia L. (Liliaceae): A New Record For The Flora Of Turkey, Sali̇h Terzi̇oğlu, Kami̇l Coşkunçelebi̇, Emi̇n Zeki̇ Başkent Jan 2008

Paris Quadrifolia L. (Liliaceae): A New Record For The Flora Of Turkey, Sali̇h Terzi̇oğlu, Kami̇l Coşkunçelebi̇, Emi̇n Zeki̇ Başkent

Turkish Journal of Botany

Paris quadrifolia L. (Liliaceae) was collected from Northeast Anatolia (A9 Ardahan). It is reported for the first time from Turkey. Line drawings, diagnostic characters and a distribution map of Paris L. species of Turkey are presented.

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New Alien Species For The Flora Of Romania: Bidens Bipinnata L. (Asteraceae), Culita Sirbu, Adrian Oprea Jan 2008

New Alien Species For The Flora Of Romania: Bidens Bipinnata L. (Asteraceae), Culita Sirbu, Adrian Oprea

Turkish Journal of Botany

This paper presents an alien plant species that has recently migrated into Romania, namely Bidens bipinnata L. For this species, the following information is provided: occurrence in Romania, a short botanical description, general distribution, way of migration, and general aspects regarding its biology, ecology, and invasive character.

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A New Species Of Gagea Salisb. (Liliaceae) From Sivas (Central Anatolia, Turkey), Ergi̇n Hamzaoğlu, Ümi̇t Budak, Ahmet Aksoy Jan 2008

A New Species Of Gagea Salisb. (Liliaceae) From Sivas (Central Anatolia, Turkey), Ergi̇n Hamzaoğlu, Ümi̇t Budak, Ahmet Aksoy

Turkish Journal of Botany

Gagea sivasica Hamzaoğlu (Liliaceae) is described as a new species from Sivas province (Central Anatolia, Turkey). A Latin diagnosis, a taxonomic description, an illustration of the new species, and some comments on geographical distribution and its affinity to Gagea chlorantha Schult.f. are given.

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