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Full-Text Articles in Life Sciences

Antibacterial Activities Of Aqueous And Alcoholic Extracts Of 34 Indian Medicinal Plants Against Some Staphylococcus Species, Jigna Parekh, Sumitra Chanda Jan 2008

Antibacterial Activities Of Aqueous And Alcoholic Extracts Of 34 Indian Medicinal Plants Against Some Staphylococcus Species, Jigna Parekh, Sumitra Chanda

Turkish Journal of Biology

Thirty-four Indian medicinal plants belonging to 28 different families were screened for potential antibacterial activity against 3 Staphylococcus species, namely Staphylococcus aureus, Staphylococcus epidermidis, and Staphylococcus subflava. Antibacterial activity of aqueous and alcoholic extracts was performed by agar disc diffusion method and agar well diffusion method. The alcoholic extracts were more active than aqueous extracts for all the plants studied. The most susceptible bacterium was S. aureus. The methanol extract of Woodfordia fruticosa showed the best antibacterial activity. The in vitro susceptibility testing of the studied staphylococcus strains was done against standard antibiotics.


Lead-Induced Cytotoxicity And Mutagenicity In Grass Pea, Girjesh Kumar, Ritambhara Tripathi Jan 2008

Lead-Induced Cytotoxicity And Mutagenicity In Grass Pea, Girjesh Kumar, Ritambhara Tripathi

Turkish Journal of Biology

Chromosomal variation is an important tool in genetic analysis. The objectives of the present study were to determine the mutagenic potential of lead (Pb) on the meiotic cells of grass pea (Lathyrus sativus) and to determine the maximum concentration of lead nitrate that induces maximum genetic variability in grass pea. The different concentrations of lead nitrate used were 25, 50, 100, 200, and 300 ppm. The percentage of abnormalities increased with the lead nitrate concentration. Different types of chromosomal abnormalities were observed, such as condensed bivalents, secondary association, laggards, bridges, cytomixis, stickiness, etc.


Androgenesis In Anther Culture Of Lithuanian Spring Barley (Hordeum Vulgare L.) And Potato (Solanum Tuberosum L.) Cultivars, Rita Asakaviciute Jan 2008

Androgenesis In Anther Culture Of Lithuanian Spring Barley (Hordeum Vulgare L.) And Potato (Solanum Tuberosum L.) Cultivars, Rita Asakaviciute

Turkish Journal of Biology

An anther culture method was used for the production of doubled haploids (DHs) in Lithuanian barley and potato cultivars that were directly regenerated from embryoids (Caredda´s method) were applied to determine androgenic potential according to the green regenerant yield and other morphogenetic factors. Green DH regenerants were obtained in 3 Lithuanian spring barley cultivars (´Aidas´, ´Alsa´, and ´Auksiniai´) out of 10 studied. The highest rate of embryoid formation was determined in cv. ´Auksiniai 3´, representing 580.0 embryoids per 100 responding anthers. The potato cultivar ´Nida´ was superior in terms of the rate of responding anthers (17.4%). The highest rate of …


The Nickel Hyperaccumulating Plants Of The Serpentines Of Turkey And Adjacent Areas: A Review With New Data, Roger D. Reeves, Nezaket Adigüzel Jan 2008

The Nickel Hyperaccumulating Plants Of The Serpentines Of Turkey And Adjacent Areas: A Review With New Data, Roger D. Reeves, Nezaket Adigüzel

Turkish Journal of Biology

Botanical exploration of serpentine soils in Turkey and neighbouring countries has shown that the region includes at least 59 taxa capable of hyperaccumulating nickel (to >0.1% of plant dry weight). These hyperaccumulators belong to the Brassicaceae (Aethionema R.Br., Alyssum L., Bornmuellera Hausskn., Pseudosempervivum (Boiss.) Grossh. (Cochlearia L.), and Thlaspi L. s.l.) and the Asteraceae (Centaurea L.). We review present knowledge of the hyperaccumulators and provide additional data recently obtained. Some species are serpentine-endemic and invariably Ni hyperaccumulating; others show more complex distribution and Ni-accumulating behaviour. Many are good subjects for biochemical studies on the Ni-accumulation and sequestering processes. There is …


Effect Of Modes Of Application Of 28-Homobrassinolide On Mung Bean, Qazi Fariduddin, Syed Aiman Hasan, Barket Ali, Shamsul Hayat, Aqil Ahmad Jan 2008

Effect Of Modes Of Application Of 28-Homobrassinolide On Mung Bean, Qazi Fariduddin, Syed Aiman Hasan, Barket Ali, Shamsul Hayat, Aqil Ahmad

Turkish Journal of Biology

An experiment was conducted to assess the response of mung bean (Vigna radiata L. Wilczek) to 28-homobrassinolide (HBL) supplied to the seeds (1.0 µM) and/or to the foliage (0.01 µM) of the plants. Samples of the treated plant materials were assessed 30 and 50 days after sowing (DAS). It was observed that the activities of carbonic anhydrase (CA) and nitrate reductase (NR), leaf chlorophyll content (Chl), net photosynthetic rate (P_N), stomatal conductance (gs), carboxylation efficiency (CE), dry mass (DM), pod number, and seed yield at harvest increased significantly over the control, irrespective of the mode of application. However, the plants …


Organic Amendment Based On Tobacco Waste Compost And Farmyard Manure: Influence On Soil Biological Properties And Butter-Head Lettuce Yield, Nur Okur, Hüseyi̇n Hüsnü Kayikçioğlu, Bülent Okur, Sezai̇ Deli̇bacak Jan 2008

Organic Amendment Based On Tobacco Waste Compost And Farmyard Manure: Influence On Soil Biological Properties And Butter-Head Lettuce Yield, Nur Okur, Hüseyi̇n Hüsnü Kayikçioğlu, Bülent Okur, Sezai̇ Deli̇bacak

Turkish Journal of Agriculture and Forestry

Agro-industrial waste presents an alternative to inorganic fertilizer. It is possible to use tobacco waste as a soil amendment due to its high organic matter and low toxic element content. Tobacco waste compost (TWC) and farmyard manure (FYM) were applied to Typic Xerofluvent soil at various ratios, and butter-head lettuce (Lactuca sativa L. var. Capitata L.) was grown. The effects on soil organic C and total N content, soil microbial biomass, soil respiration, activity of 4 enzymes (dehydrogenase, urease, alkaline phosphatase, and \beta-glucosidase), and lettuce yield were determined. Organic materials were applied at the rate of 50 t ha^{-1}. Significantly …


A Perspective On Balanced Fertilization In The Mediterranean Region, John Ryan Jan 2008

A Perspective On Balanced Fertilization In The Mediterranean Region, John Ryan

Turkish Journal of Agriculture and Forestry

The demands on agriculture to produce food and fibre are driven by the inexorable increases in the world's population. However, advances in agricultural science in the past century have helped food production to keep pace with population growth, thus keeping hunger and malnutrition at bay. The achievements in enhanced agricultural output, especially in the developed world, are attributed to 3 main factors: expansion of irrigation, development of improved higher-yielding, disease-resistant crop cultivars, and chemical fertilizers. Fertilizers are fundamental to producing more crop output from existing land in cultivation. Along with increased fertilizer use comes greater concern about the environment in …


Estimating The Effect Of Controlled Drainage On Soil Salinity And Irrigation Efficiency In The Harran Plain Using Saltmod, İdri̇s Bahçeci̇, Recep Çakir, A. Suat Nacar, Pinar Bahçeci̇ Jan 2008

Estimating The Effect Of Controlled Drainage On Soil Salinity And Irrigation Efficiency In The Harran Plain Using Saltmod, İdri̇s Bahçeci̇, Recep Çakir, A. Suat Nacar, Pinar Bahçeci̇

Turkish Journal of Agriculture and Forestry

Soil salinity and water logging, as well as water scarcity, are the most common problems limiting irrigated agriculture crop production in southeast Turkey. Thus, this study was conducted in order to predict the effect of drainage control factors on irrigation efficiency, irrigation sufficiency, root zone salinity, and drain discharge using SaltMod simulation. Investigations were conducted in the Harran Plain, also known as the Fertile Crescent or Upper Mesopotamia. High crop evapotranspiration rates and deep water table levels have led to visible increases in irrigation water requirements in the region. Therefore, the level of the water table appears to be a …


Identification Of Advantages Of Maize-Legume Intercropping Over Solitary Cropping Through Competition Indices In The East Mediterranean Region, Şaban Yilmaz, Mehmet Atak, Mustafa Erayman Jan 2008

Identification Of Advantages Of Maize-Legume Intercropping Over Solitary Cropping Through Competition Indices In The East Mediterranean Region, Şaban Yilmaz, Mehmet Atak, Mustafa Erayman

Turkish Journal of Agriculture and Forestry

Alternate planting combinations of maize (Zea mays L.) with common bean (Phaseolus vulgaris L.) or cowpea (Vigna sinensis L.) were compared with the solitary planting of each crop during 2003 and 2004 under the East Mediterranean conditions in Turkey. The experiment comprised 15 treatments; sole planting of maize (71,500 plant ha^{-1}), sole planting of common bean (285,750 plant ha^{-1}) and cowpea (285,750 plant ha^{-1}), and 2 different planting patterns (1- and 2-row plantings) with 6 maize-legumes intercropping series, 50:50, 67:50, and 100:50, respectively, using randomized complete block design with 3 replications. Evaluation of the planting patterns was performed on basis …


Some Parameters Affecting Fire Behavior In Anatolian Black Pine Slash, Ömer Küçük, Ertuğrul Bi̇lgi̇li̇, Bülent Sağlam, Sağdan Başkaya, Bahar Di̇nç Durmaz Jan 2008

Some Parameters Affecting Fire Behavior In Anatolian Black Pine Slash, Ömer Küçük, Ertuğrul Bi̇lgi̇li̇, Bülent Sağlam, Sağdan Başkaya, Bahar Di̇nç Durmaz

Turkish Journal of Agriculture and Forestry

This study presents and discusses the results of a fire behavior study conducted in Anatolian black pine (Pinus nigra J.F. Arnold subsp. nigra var. caramanica (Loudon) Rehder) slash. A total of 30 experimental fires were conducted over 3 years under varying weather and fuel loading conditions in aging slash. Relationships between fire behavior and fuel properties and weather conditions were determined with correlation and regression analyses. Spread rate, fuel consumption, and fire intensity were all related to fuel properties and weather, and ranged from 0.2 to 3.1 m min^{-1}, from 0.71 to 6.65 kg m^{-2}, and from 14.05 to 3961.46 …


Uterine And Ovarian Metastasis Of Transmissible Venereal Tumor In A Bitch, Ayhan Baştan, Duygu Baki̇ Acar, Mehmet Cengi̇z Jan 2008

Uterine And Ovarian Metastasis Of Transmissible Venereal Tumor In A Bitch, Ayhan Baştan, Duygu Baki̇ Acar, Mehmet Cengi̇z

Turkish Journal of Veterinary & Animal Sciences

In this case report, metastasis of a transmissible venereal tumor (TVT) to the uterus and ovaries is presented. A 7-year-old female boxer dog with hemorrhagic vulvar discharge and a vaginal mass was brought to Ankara University Faculty of Veterinary Medicine, Clinics of Gynecology and Obstetrics. TVT was diagnosed by clinical findings and cytologic examination. Multifocal nodules in the uterus and enlargements of the uterine wall were detected by ultrasonographic examination. Ovariohysterectomy was performed because of uterine pathology. Histopathologic examination of the uterus and ovarium showed that the multifocal masses in the uterus and ovaries originated from vaginal TVT.


A Bicistronic Dna Vaccine Containing Gene Of Fmdv And Bovine Ifn-\Alpha Can Prime Humoral And Cellular Immune Responses Of Guinea Pigs, Huichen Guo, Shiqi Sun, Jiangtao Ma, Zaixin Liu, Xiangtao Liu, Qingge Xie Jan 2008

A Bicistronic Dna Vaccine Containing Gene Of Fmdv And Bovine Ifn-\Alpha Can Prime Humoral And Cellular Immune Responses Of Guinea Pigs, Huichen Guo, Shiqi Sun, Jiangtao Ma, Zaixin Liu, Xiangtao Liu, Qingge Xie

Turkish Journal of Veterinary & Animal Sciences

The study was conducted to evaluate the immunogenicity and protective efficacy of a DNA vaccine against foot-and-mouth disease virus (FMDV). Genes encoding the P1, 2A, 3C of FMDV O/China99 and bovine IFN-\alpha were cloned into pcDNA3.1 (+) expression vector under CMV promoter and FMDV IRES control, respectively. The recombinant plasmids were administered to guinea pigs by intramuscular injection with mono- or bicistronic expression plasmids and aurintricarboxylic acid (ATA). After 2 sequential vaccinations with plasmid DNA, all of guinea pigs were challenged with 100 ID_{50} FMDV O/China99. Anti-FMDV antibodies were detected by ELISA and neutralization assay, and the phenotyping of T-cell …


Genetic Parameters Of Residual Energy Intake And Its Correlations With Other Traits In Holstein Dairy Cattle, Pouya Zamani, Seied Reza Miraei Ashtiani, Hosein Mohammadi Jan 2008

Genetic Parameters Of Residual Energy Intake And Its Correlations With Other Traits In Holstein Dairy Cattle, Pouya Zamani, Seied Reza Miraei Ashtiani, Hosein Mohammadi

Turkish Journal of Veterinary & Animal Sciences

Residual energy intake (REI) or residual feed intake (RFI), defined as the difference between actual energy intake, is predicted on the basis of requirements for maintenance, milk production, and body weight change of an animal. Genetic variation of REI and its relationships with dry matter intake, milk yield, fat corrected milk yield and milk fat, and protein yields was investigated using 3503 monthly records collected from 906 Holstein lactating cows. Variance components were estimated using univariate and multivariate animal models with the derivative-free approach of restricted maximum likelihood algorithm, fitting animal models with fixed effects of herd-year-season, parity number and …


Occurrence Of The Alien Species Aspidosiphon (Aspidosiphon) Elegans (Sipuncula) On The Levantine And Aegean Coasts Of Turkey, Şermi̇n Açik Jan 2008

Occurrence Of The Alien Species Aspidosiphon (Aspidosiphon) Elegans (Sipuncula) On The Levantine And Aegean Coasts Of Turkey, Şermi̇n Açik

Turkish Journal of Zoology

A total of 37 specimens of Aspidosiphon (Aspidosiphon) elegans were collected at 5 stations located along the Levantine coast of Turkey and at 1 station located near Foça (Aegean Sea). This species inhabited calcareous rocks, the mussel Branchidontes pharaonis, and the alga Corallina mediterranea between 0 and 3 m depths. The population density of this species in the area was found to be 25 ind. M^{-2}. As Aspidosiphon (A.) elegans is a bio-eroder species, its high population density may cause serious damage to coralligenous habitats. This study gives more data regarding the morphological, biological, and ecological features of the species …


First Record Of The Eucalyptus Seed Gall Wasp, Quadrastichodella Nova Girault, 1922, (Eulophidae: Tetrastichinae) From Turkey, Oğuzhan Doğanlar, Mi̇kdat Doğanlar Jan 2008

First Record Of The Eucalyptus Seed Gall Wasp, Quadrastichodella Nova Girault, 1922, (Eulophidae: Tetrastichinae) From Turkey, Oğuzhan Doğanlar, Mi̇kdat Doğanlar

Turkish Journal of Zoology

The present study was carried out during 2006 and 2007 in a eucalyptus planted area in the Mediterranean region of Turkey. The eulophid species Quadrastichodella nova Girault (Hymenoptera: Eulophidae: Tetrastichinae) was collected on Eucalyptus spp. seed capsules for the first time in Turkey. This species induces galls on the seeds, attaining low levels of infestation. The plant species Eucalyptus camaldulensis L. (Myrtaceae) is reported as new host for Q. nova.


Flora Of The Region Between Zeytinbahçe And Akarçay (Birecik, Şanlıurfa, Turkey), Mehmet Maruf Balos, Hasan Akan Jan 2008

Flora Of The Region Between Zeytinbahçe And Akarçay (Birecik, Şanlıurfa, Turkey), Mehmet Maruf Balos, Hasan Akan

Turkish Journal of Botany

This research was carried out from 2004 to 2006 in order to determine the flora of the region between Zeytinbahçe and Akarçay, Birecik district. The research area is situated in Şanlıurfa province and within C7 of the grid system. In the area, 442 taxa belonging to 62 families and 253 genera were determined. Of all the collected specimens, 30 taxa are new records for the C7 square, 16 (3.59%) taxa are endemic for Turkey, 2 taxa belong to Cryptogamae, and 440 taxa belong to Phanerogamae. In the distribution of the taxa according to floristic regions, Irano-Turanian elements ranked first, with …


Prevalence And Antibiotic Resistance Of Listeria Spp. Isolated From Ready-To-Eat Foods In Ankara, Ufuk Tansel Şi̇reli̇, Ali̇ Gücükoğlu Jan 2008

Prevalence And Antibiotic Resistance Of Listeria Spp. Isolated From Ready-To-Eat Foods In Ankara, Ufuk Tansel Şi̇reli̇, Ali̇ Gücükoğlu

Turkish Journal of Veterinary & Animal Sciences

In this study the presence of Listeria spp. is tested in 100 ready-to-eat food samples purchased from different stores and traditional food shops in the province of Ankara. The tested materials were 20 each of the following: mayonnaise based salad, kadınbudu köfte (fried meatball), fried liver, rice stuffed mussel, and green salad. Microbiological analyzes showed that 13 of 100 salad samples (13%) were contaminated with Listeria spp. while 10 of 100 salad samples (10%) were contaminated with Listeria monocytogenes. Among these, 4 of 20 mayonnaise based salad samples (20%), 1 of 20 fried liver (5%), 1 of 20 rice stuffed …


Investigation Of Anti-Toxoplasma Gondii And Anti-Leishmania Infantum Antibodies Among Sivas Kangal Dogs, Selçuk Kiliç, Cahi̇t Babür, Ayşegül Taylan Özkan, Nuri̇ Mamak Jan 2008

Investigation Of Anti-Toxoplasma Gondii And Anti-Leishmania Infantum Antibodies Among Sivas Kangal Dogs, Selçuk Kiliç, Cahi̇t Babür, Ayşegül Taylan Özkan, Nuri̇ Mamak

Turkish Journal of Veterinary & Animal Sciences

The present study was carried out to determine the seroprevalence of toxoplasmosis and leishmaniosis among Kangal dogs on breeding farms in Sivas, Turkey. Serum samples from 50 Kangal dogs without clinical symptoms of disease were tested for anti-Toxoplasma gondii antibodies with the Sabin Feldman Dye Test (SFDT) and for anti-Leishmania antibodies with the Indirect Fluorescent Antibody Test (IFAT). Forty-six out of the 50 dogs were seropositive for Toxoplasma gondii, with titers ranging from 1:16 to 1:1024. Only 1 of the 50 dogs was seropositive for leishmaniosis (titer: 1:128) and 5 had anti-Leishmania antibodies with a titer of 1:64, which was …


Alkaline Pulping And Bleaching Of Acacia Auriculiformis Grown In Bangladesh, M. Sarwar Jahan, Rowshan Sabina, Arjumand Rubaiyat Jan 2008

Alkaline Pulping And Bleaching Of Acacia Auriculiformis Grown In Bangladesh, M. Sarwar Jahan, Rowshan Sabina, Arjumand Rubaiyat

Turkish Journal of Agriculture and Forestry

The physical, chemical, and morphological characteristics of Acacia auriculiformis were evaluated in terms of its suitability for papermaking. The fiber length (1.1 mm) of A. auriculiformis in this study was within the range of tropical hardwoods. The lignin content in A. auriculiformis was 19.4% and \alpha-cellulose 44.1%, which was within the range of other acacias, but that of extractives was higher. Soda, soda-AQ, and kraft processes were studied in pulping. Screened pulp yield was increased with increasing active alkali. Acceptable pulp yield (43%-44%) and kappa number (22-24) were obtained at 20% alkali and 2.5 h of cooking in soda, 16% …


Influence Of Rootstocks On Changing The Pattern Of Phenolic Compounds In Thompson Seedless Grapes And Its Relationship To The Incidence Of Powdery Mildew, Jogaiah Satisha, Pooja Doshi, Pandurang Gundappa Adsule Jan 2008

Influence Of Rootstocks On Changing The Pattern Of Phenolic Compounds In Thompson Seedless Grapes And Its Relationship To The Incidence Of Powdery Mildew, Jogaiah Satisha, Pooja Doshi, Pandurang Gundappa Adsule

Turkish Journal of Agriculture and Forestry

The total phenolic content and individual groups of phenols, such as flavonones, flavonoids, and flavon-3-ols, were estimated in the leaves and berries of Thompson Seedless grapes grafted onto different rootstocks and own-rooted vines during 3 stages of berry development. The leaves at all the stages of sampling contained more total phenol and individual phenolic groups than berries. The reduction in phenolic content was gradual in leaves from the first to third stage of sampling, but it was drastic in berries. Thompson Seedless grafted onto Dog ridge, 110 R, and 1103 P rootstocks had the highest phenolic content and individual phenolic …


Antioxidant Activity Of Cauliflower (Brassica Oleracea L.), Ekrem Köksal, İlhami̇ Gülçi̇n Jan 2008

Antioxidant Activity Of Cauliflower (Brassica Oleracea L.), Ekrem Köksal, İlhami̇ Gülçi̇n

Turkish Journal of Agriculture and Forestry

Recently, a number of studies on the health benefits associated with fruits, vegetables, herbs and spices demonstrated that they possess potent antioxidant, anti-inflammatory, anti-mutagenic, and anti-carcinogenic activity. The potential antioxidant activity of water and ethanol extracts of cauliflower (Brassica oleracea L.) were investigated to evaluate their potential value as a natural ingredient for foods or cosmetic application. In this study antioxidant activity was measured by 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging, 1,1-diphenyl-2-picryl-hydrazyl free radical (DPPH^.) scavenging, N,N-dimethyl-p-phenylenediamine dihydrochloride (DMPD) radical scavenging, superoxide anion (O2^{.-}) radical scavenging, total antioxidant activity, reducing activity using Fe^{+3}-Fe^{+2} transformation and CUPRAC assays, hydrogen peroxide (H_2O_2) scavenging, …


The Millennium Ecosystem Assessment: Tradeoffs Between Food Security And The Environment, Claudia Ringler Jan 2008

The Millennium Ecosystem Assessment: Tradeoffs Between Food Security And The Environment, Claudia Ringler

Turkish Journal of Agriculture and Forestry

This paper provides an overview of selected trends and conditions of ecosystem services, in particular, food production and impacts on the environment based on the Millennium Ecosystem Assessment. It then describes outcomes for future ecosystem services under alternative development pathways, with a focus on tradeoffs between food security and the environment, such as implications for fertilizer use, and the role of biofuels. As tradeoffs among various ecosystem services are expected to increase into the future, research will need to focus increasingly on ways to achieve a balance between food security and improving non-food ecosystem services. To reduce adverse future impacts, …


Outlook For World Fertilizer Demand, Supply, And Supply/Demand Balance, Patrick Heffer, Michel Prud'homme Jan 2008

Outlook For World Fertilizer Demand, Supply, And Supply/Demand Balance, Patrick Heffer, Michel Prud'homme

Turkish Journal of Agriculture and Forestry

The outlook is driven by impressive economic growth in Asia, increasing demand for biofuel, and a tight grain market. As a result of tight supply/demand conditions, prices for almost all agricultural commodities are unusually high. The need to boost agricultural production worldwide is stimulating fertilizer consumption in Asia and the Americas, driving global demand to new record levels. For the production of most nutrients 2007 was a record year, as buoyant demand stretched the industry's capacity to meet global requirements. All supply and demand situations will be difficult to balance until 2011 due to sustained fertilizer demand. With nitrogen supply …


The Effects Of Traditional Grazing Practices On Upland (Yayla) Rangeland Vegetation And Forage Quality, Bi̇nali̇ Çomakli, Mahmut Daşci, Ali̇ Koç Jan 2008

The Effects Of Traditional Grazing Practices On Upland (Yayla) Rangeland Vegetation And Forage Quality, Bi̇nali̇ Çomakli, Mahmut Daşci, Ali̇ Koç

Turkish Journal of Agriculture and Forestry

A seminomadic animal raising system, known as ''yaylacılık'' in Turkish, is one of the best ways of using upland rangelands, particularly in rough terrain regions. Three rangeland sites were selected to determine the spatial effect of summer grazing distribution on botanical composition, canopy coverage, soil aggregate stability, and forage nutrient content in these range sites. On average, grass covered 61.09% of the total land in site I, 67.04% and 57.40%, respectively, in sites II and III. Legume covered 11.61%, 13.67%, and 18.05%, respectively, of the total land in sites I, II, and III. Other families covered 27.30%, 19.29%, and 24.55% …


The Relationship Between Black Point And Fungi Species And Effects Of Black Point On Seed Germination Properties In Bread Wheat, Faruk Toklu, Davut Soner Akgül, Mehmet Bi̇çi̇ci̇, Tolga Karaköy Jan 2008

The Relationship Between Black Point And Fungi Species And Effects Of Black Point On Seed Germination Properties In Bread Wheat, Faruk Toklu, Davut Soner Akgül, Mehmet Bi̇çi̇ci̇, Tolga Karaköy

Turkish Journal of Agriculture and Forestry

This study was undertaken to investigate the relationship between some fungi species and black point incidence and the effect of black point on seed weight, germination percentage, seedling emergence, seedling establishment, number of embryonic roots, and coleoptile length under field conditions in bread wheat. In this research, black-pointed and black point-free kernel samples of 5 bread wheat cultivars, namely Ceyhan-99, Doğankent-1, Yüreğir-89, Seyhan-95, and Adana-99 - commonly grown under the agroclimatic conditions of Çukurova Region, were used. Isolations from the black point-affected and black point-free kernels indicated that Alternaria spp. are the predominant fungi, followed by Chaetomium sp and Aspergillus …


Determination Of The Effects Of Hazelnut Husk And Tea Waste Treatments On Urease Enzyme Activity And Its Kinetics In Soil, Ridvan Kizilkaya, İmanverdi̇ Ekberli̇ Jan 2008

Determination Of The Effects Of Hazelnut Husk And Tea Waste Treatments On Urease Enzyme Activity And Its Kinetics In Soil, Ridvan Kizilkaya, İmanverdi̇ Ekberli̇

Turkish Journal of Agriculture and Forestry

In this research, the effects of 5% treatment of hazelnut husk (HH) and tea production waste (TEW) to clay loam soil on urease enzyme activity and its kinetics were determined in a 30-day soil incubation experiment. For this purpose, kinetic parameters (V_{max}, K_m, and V_{max}/K_m,) were calculated by determining urease activity in organic wastes treated soils in different substrate concentrations (0%, 1%, 2%, 4%, 6%, 8%, 10%, and 12%), incubation periods (0, 1, 2, 3, 4, 5 and 6 h), and incubation temperatures (0, 10, 20, 30, 40, and 50 °C) at the end of the 30 days of the …


Biological Control Of Bacterial Spot Disease Of Pepper With Bacillus Strains, Mustafa Mi̇ri̇k, Yeşi̇m Aysan, Özden Çinar Jan 2008

Biological Control Of Bacterial Spot Disease Of Pepper With Bacillus Strains, Mustafa Mi̇ri̇k, Yeşi̇m Aysan, Özden Çinar

Turkish Journal of Agriculture and Forestry

Bacterial spot disease caused by Xanthomonas axonopodis pv. vesicatoria (X. axonopodis pv. vesicatoria) is a devastating pepper (Capsicum annuum) disease in Turkey. Biological control of Xanthomonas axanopodis pv. vesicatoria is of great interest, in terms of environmental safety and economic return. In this study, 3 Bacillus strains isolated from soil samples of the rhizospheres of peppers grown in greenhouses and fields were used to suppress the size of the population of X. axonopodis pv. vesicatoria. Results indicated that disease development decreased by 11%-62% and 38%-67% in pepper plants inoculated with the 3 Bacillus strains alone and in combination, respectively, in …


Feeding And Foraging Behaviour In Two Coccinellid Predators: Scymnus Levaillanti Muls. And Cycloneda Sanguinea L., Ali̇ Arda Işikber Jan 2008

Feeding And Foraging Behaviour In Two Coccinellid Predators: Scymnus Levaillanti Muls. And Cycloneda Sanguinea L., Ali̇ Arda Işikber

Turkish Journal of Agriculture and Forestry

Predatory behaviour, prey consumption, and foraging cycle of adults and larvae of Scymnus levaillanti Muls. and Cycloneda sanguinea L. (Coleoptera: Coccinellidae) were investigated using a video/computer recording and measurement system. Larvae of S. levaillanti spent more time in feeding activities compared to C. sanguinea. Adults of both S. levaillanti and C. sanguinea spent more time in non-feeding activities (digestion and cleaning) compared to their larvae whilst adults of S. levaillanti spent less time in non-feeding activities than those of C. sanguinea. Generally, larvae and adults of both coccinellid species spent most of their time in non-feeding activities. Although S. levaillanti …


Pilot Study For An Assessment Of Vegetation Structure For Steppe Rangelands Of Central Anatolia, Hüseyi̇n Kansur Firincioğlu, Bi̇lal Şahi̇n, Steven Seefeldt, Fehmi̇ Mert, Basri̇ Hakan Hakyemez, Meci̇t Vural Jan 2008

Pilot Study For An Assessment Of Vegetation Structure For Steppe Rangelands Of Central Anatolia, Hüseyi̇n Kansur Firincioğlu, Bi̇lal Şahi̇n, Steven Seefeldt, Fehmi̇ Mert, Basri̇ Hakan Hakyemez, Meci̇t Vural

Turkish Journal of Agriculture and Forestry

In the last 50 years, rangelands in the Central Anatolian Region of Turkey have been converted to cropping lands, which has negatively accelerated vegetation change, resulting in overgrazing and poor condition and productivity. In these steppe rangelands, to develop a rational basis for making restoration and management decisions, the vegetation structure must be well understood. Thus, the objectives of this study were to: (1) define vegetation patterns through assessing spatial distribution of the plant species and groups, (2) evaluate the relationships between vegetation and environmental aspects and range condition, and (3) outline possible restoration implementations. Therefore, a study was carried …


Performance Analysis Of Collective Set-Move Lateral Sprinkler Irrigation Systems Used In Central Anatolia, İdri̇s Bahçeci̇, Ali̇ Fuat Tari, Nazmi̇ Di̇nç, Pinar Bahçeci̇ Jan 2008

Performance Analysis Of Collective Set-Move Lateral Sprinkler Irrigation Systems Used In Central Anatolia, İdri̇s Bahçeci̇, Ali̇ Fuat Tari, Nazmi̇ Di̇nç, Pinar Bahçeci̇

Turkish Journal of Agriculture and Forestry

Performance assessment (PA) of irrigation and drainage systems has been an important area of research and debate in recent years. The present study was carried out to determine some performance parameters of sprinkler irrigation systems. Thirty-eight subunits (lateral) were monitored and assessed in the Konya Basin of Turkey. Sprinkler nozzle-pressure, flow rate, and their variations, and the amount of irrigation water were determined. Application and distribution uniformity, irrigation adequacy, and characteristics of system design and application were analyzed. Christensen Uniformity coefficient (CUC) and distribution uniformity (DU) values were between 41% and 88%, and between 18% and 81%, respectively. Variation in …