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Articles 31 - 47 of 47
Full-Text Articles in Forest Sciences
Determination Of Superior Pinto Bean (Phaseolus Vulgaris L. Var. Pinto) Genotypes By Selection Under The Ecological Conditions Of Samsun Province, Turkey, Ahmet Balkaya, Ahmet Ergün
Determination Of Superior Pinto Bean (Phaseolus Vulgaris L. Var. Pinto) Genotypes By Selection Under The Ecological Conditions Of Samsun Province, Turkey, Ahmet Balkaya, Ahmet Ergün
Turkish Journal of Agriculture and Forestry
Species belonging to the family Leguminosae are widely grown in Turkey. Pinto bean (Phaseolus vulgaris L. var. Pinto) is a traditional crop in Turkey and farmers grow local varieties that they select and maintain. Pinto bean is an important food in Samsun province, Turkey. Its crop is consumed as fresh pods, and fresh pod seed or dry seeds. This study was conducted in order to select valuable genetic resources of the pinto bean (Phaseolus vulgaris L. var. Pinto) under the ecological conditions of Samsun in 2003 and 2004. In the first year, 44 pinto bean populations were collected and evaluated …
The Effect Of Fermentation Temperature On The Growth Kinetics Of Wine Yeast Species, Aysun Şener, Ahmet Canbaş, M. Ümi̇t Ünal
The Effect Of Fermentation Temperature On The Growth Kinetics Of Wine Yeast Species, Aysun Şener, Ahmet Canbaş, M. Ümi̇t Ünal
Turkish Journal of Agriculture and Forestry
The effect of fermentation temperature (18 and 25 °C) on kinetic and yield parameters of ethanol fermentation by Saccharomyces cerevisiae (Zymaflore VL1) and Saccharomyces cerevisiae (Uvaferm CM) was examined using the white Emir grape that is grown in the Nevşehir-Ürgüp region of Turkey. Growth of both yeast species varied according to temperature. Kinetic and yield parameters were both temperature dependent. Sensory evaluation showed that the taste panel was able to discern the wines fermented by Uvaferm CM and Zymaflore VL1 at different temperatures. The panel preferred the wine fermented by Uvaferm CM at 18 °C.
Salt Tolerance Of Sixteen Wheat Genotypes During Seedling Growth, Seydi̇ Ahmet Bağci, Hasan Eki̇z, Ahmet Yilmaz
Salt Tolerance Of Sixteen Wheat Genotypes During Seedling Growth, Seydi̇ Ahmet Bağci, Hasan Eki̇z, Ahmet Yilmaz
Turkish Journal of Agriculture and Forestry
Effect of increasing application of NaCl on germination, root and shoot dry weight at early growth stage, and concentrations of potassium (K) and sodium (Na) was studied in 16 bread wheat (Triticum aestivum L.) genotypes grown in nutrient solution. Application of NaCl was carried out at concentrations of 2, 55, 117, 194, and 287 mM. The genotypes showed a wide range of variation for the traits measured under the NaCl treatments. The salt tolerance index (STI) of the genotypes, expressed as the ratio of dry matter yield produced under the NaCl treatments compared to the control treatment, was found to …
Examination Of Flower Bud Initiation And Differentiation In Sweet Cherry And Peach By Scanning Electron Microscope, Hakan Engi̇n, Ali̇ Ünal
Examination Of Flower Bud Initiation And Differentiation In Sweet Cherry And Peach By Scanning Electron Microscope, Hakan Engi̇n, Ali̇ Ünal
Turkish Journal of Agriculture and Forestry
Flower initiation and development in 0900 Ziraat sweet cherry (Prunus avium L.) and Glohaven peach (Prunus persica L.) were examined using scanning electron microscopy. The objectives were to determine the timing of floral developmental stages and to achieve a better understanding of the morphological changes during flower formation at the apex of axillary buds of sweet cherry and peach cultivars. In cherry, bud samples were taken every 10 days from June 26 to August 24 and stored in formalin, 70% ethanol, and acetic acid solution (10:50:5, by volume). In peach, bud samples were collected every 10 days from June 28 …
The Effect Of Log Seasonality On The Reproductive Potential Of Monochamus Galloprovincialis Olivier (Coleoptera: Cerambycidae) Reared In Black Pine Logs Under Laboratory Conditions, Süleyman Akbulut, Aki̇f Keten, İsmai̇l Baysal, Beşi̇r Yüksel
The Effect Of Log Seasonality On The Reproductive Potential Of Monochamus Galloprovincialis Olivier (Coleoptera: Cerambycidae) Reared In Black Pine Logs Under Laboratory Conditions, Süleyman Akbulut, Aki̇f Keten, İsmai̇l Baysal, Beşi̇r Yüksel
Turkish Journal of Agriculture and Forestry
Monochamus galloprovincialis (Olivier) is the vector of the pinewood nematode, Bursaphelenchus xylophilus (Steiner and Buhrer) Nickle, in Europe and Asia. Reproduction is probably the most important event in the life history of insects and may be affected by a number of factors, such as seasonal changes in larval or adult nutrition. In this study the effect of season on the reproductive potential of M. galloprovincialis females reared in black pine logs was investigated by constructing fertility tables for each of 43 pine logs that differed only in the season that they were cut. Population parameters were compared among 3 seasonal …
Selection Of Chestnuts (Castanea Sativa Mill.) Grown In Nazilli District, Turkey, Engi̇n Ertan, Güner Seferoğlu, Gonca Günver Dalkiliç, F. Ekmel Teki̇ntaş, Sai̇me Seferoğlu, Fahi̇re Babaeren, Mürşi̇de Önal, Zeynel Dalkiliç
Selection Of Chestnuts (Castanea Sativa Mill.) Grown In Nazilli District, Turkey, Engi̇n Ertan, Güner Seferoğlu, Gonca Günver Dalkiliç, F. Ekmel Teki̇ntaş, Sai̇me Seferoğlu, Fahi̇re Babaeren, Mürşi̇de Önal, Zeynel Dalkiliç
Turkish Journal of Agriculture and Forestry
The Nazilli region of Aydın province in Turkey leads in terms of number of chestnut trees and quantity of chestnuts produced. This research was conducted to determine chestnut genotypes having high yield and superior fruit quality in the Nazilli region. Overall fruit quality, fruit size, precocity, and suitability for paste processing of chestnut genotypes were investigated. The observed characteristics of genotypes were ranked using certain criteria. Number of fruit samples collected from 2001 to 2003 are 80 (2001), 46 (2002), and 38 (2003). The collected data were evaluated using the weighted-rankit method, with total points determined for 38 genotypes during …
Critical Period Of Weed Control In Three Winter Oilseed Rape (Brassica Napus L.) Cultivars, Javad Hamzei, A. Dabbagh Mohammady Nasab, Farrokh Rahmizadeh Khoie, Aziz Javanshir, Mohammad Moghaddam
Critical Period Of Weed Control In Three Winter Oilseed Rape (Brassica Napus L.) Cultivars, Javad Hamzei, A. Dabbagh Mohammady Nasab, Farrokh Rahmizadeh Khoie, Aziz Javanshir, Mohammad Moghaddam
Turkish Journal of Agriculture and Forestry
Field experiments were carried out at the Agricultural Research Station, Faculty of Agriculture, University of Tabriz, in 2004-2005 and 2005-2006. Three winter oilseed rape cultivars (Okapi, Licord, and SLM046) with 12 weed interference durations were evaluated in a factorial experiment based on a randomized complete block design with 3 replications. The experiments consisted of 2 sets of treatments. In the first set, the crop was kept weed-free until the growth stages of 4-leaf, 8-leaf, stem elongation, flowering, and podding. In the second set, weeds were permitted to grow within the crop until the above-mentioned growth stages. Weedy and weed-free checks …
Integrated Management Of Stem Rot Disease (Sclerotium Rolfsii) Of Groundnut (Arachis Hypogaea L.) Using Rhizobium And Trichoderma Harzianum (Itcc - 4572), S. Ganesan, R. Ganesh Kuppusamy, R. Sekar
Integrated Management Of Stem Rot Disease (Sclerotium Rolfsii) Of Groundnut (Arachis Hypogaea L.) Using Rhizobium And Trichoderma Harzianum (Itcc - 4572), S. Ganesan, R. Ganesh Kuppusamy, R. Sekar
Turkish Journal of Agriculture and Forestry
Soil-borne plant pathogenic fungi cause heavy crop losses all over the world. With variable climate from region to region, most crops grown in India are susceptible to diseases caused by soil-borne fungal pathogens. Among tropical and subtropical land crops, groundnut (Arachis hypogaea L.) is an important oil seed crop, providing vegetable oil as human food and oil cake meal as animal poultry feed. A large number of diseases attack groundnut plants in India; of these, stem rot (collar rot) caused by Sclerotium rolfsii is the most common disease. Certain well-studied chemical pesticide management strategies are available for reducing damage by …
The Effects Of Biological And Chemical Treatment On Gray Mold Disease In Tomatoes Grown Under Greenhouse Conditions, Fi̇gen Yildiz, Mehmet Yildiz, Nafi̇z Delen, Arzu Coşkuntuna, Pervi̇n Kinay, Hüseyi̇n Türküsay
The Effects Of Biological And Chemical Treatment On Gray Mold Disease In Tomatoes Grown Under Greenhouse Conditions, Fi̇gen Yildiz, Mehmet Yildiz, Nafi̇z Delen, Arzu Coşkuntuna, Pervi̇n Kinay, Hüseyi̇n Türküsay
Turkish Journal of Agriculture and Forestry
A total of 163 bacterial strains isolated from tomato leaves were evaluated for their ability to suppress gray mold (Botrytis cinerea Pers. ex Fr.) on tomatoes, and 4 strains consistently reduced the incidence of B. cinerea. These antagonist strains were identified as Pseudomonas fluorescens. The bacterial strains with in vitro resistance to fungicides were combined with low-dose fenhexamid in vivo. One strain of P. fluorescens (Pf163) reduced the disease incidence by an average of 78% on tomato plants inoculated with B. cinerea in greenhouse trials. In comparison to the control treatment, other P. fluorescens strains applied with low-dose fenhexamid reduced …
Methyl Bromide Alternatives For Controlling Meloidogyne Incognita In Pepper Cultivars In The Eastern Mediterranean Region Of Turkey, M. Ali̇ Söğüt, İ. Hali̇l Elekçi̇oğlu
Methyl Bromide Alternatives For Controlling Meloidogyne Incognita In Pepper Cultivars In The Eastern Mediterranean Region Of Turkey, M. Ali̇ Söğüt, İ. Hali̇l Elekçi̇oğlu
Turkish Journal of Agriculture and Forestry
The efficacy of soil solarization in combination with Trichoderma spp. (S+Tr), dazomet (S+D 300, 400 and 500 kg ha^{-1} of dosages) and fresh chicken manure (S+CM 12.5 t ha^{-1}) as methyl bromide (MB) alternatives against root-knot nematodes on pepper cultivars was investigated in plastic greenhouses in the eastern Mediterranean Region of Turkey. Soil solarization for 6 weeks increased soil temperature by 8.4 and 7.8 °C at 10 cm soil depth in 2000 and 2001, respectively. Second stage juvenile (J2) populations of M. incognita were efficiently reduced by S + Tr, S + D300, S + D400, S + D500, S …
Alternative Treatments To Methyl Bromide In The Eastern Mediterranean Region Of Turkey, Seral Yücel, İ. Hali̇l Elekçi̇oğlu, Canan Can, M. Ali̇ Söğüt, Adem Özarslandan
Alternative Treatments To Methyl Bromide In The Eastern Mediterranean Region Of Turkey, Seral Yücel, İ. Hali̇l Elekçi̇oğlu, Canan Can, M. Ali̇ Söğüt, Adem Özarslandan
Turkish Journal of Agriculture and Forestry
This study aimed to establish the economic and technical applicability of the alternative control methods to methyl bromide (MB) in pepper and eggplant. These crops were grown in plastic houses and tunnels including open field strawberry cultivation in the East Mediterranean region of Turkey and were assessed over the 2000-2002 growing season. In addition the study using a pre and post questionnaire aimed to monitor the change in farmer practices who have adopted alternative techniques other than MB, and their understanding of the environmental concerns associated with MB such as ozone depletion. Experiments were conducted under farmer's field conditions, and …
Growth And Stomatal Behaviour Of Two Strawberry Cultivars Under Long-Term Salinity Stress, Ece Turhan, Ati̇lla Eri̇ş
Growth And Stomatal Behaviour Of Two Strawberry Cultivars Under Long-Term Salinity Stress, Ece Turhan, Ati̇lla Eri̇ş
Turkish Journal of Agriculture and Forestry
Sodium chloride (NaCl) treatments were conducted on strawberry plants (Fragaria x ananassa cvs. Camarosa and Chandler) grown under greenhouse conditions. Modified Hoagland solution (one-third strength) containing 0 (control), 8.5, 17.0 and 34.0 mM NaCl was applied to the plants for 6 months. High NaCl concentrations caused serious reductions in growth parameters such as fresh weight (FW) of leaves, stems and roots, leaf area and the number of leaves. Addition of salt to the growth medium caused a reduction in stomatal conductance (Gs) and transpiration rate (E) of Camarosa. Saline water up to 34 mM NaCl did not have any influence …
Effect Of Wild Oat (Avena Fatua L.) Population And Nitrogen Levels On Some Agronomic Traits Of Spring Wheat (Triticum Aestivum L.), Imtiaz Khan, Gul Hassan, Muhammad Ishfaq Khan, Meher Gul
Effect Of Wild Oat (Avena Fatua L.) Population And Nitrogen Levels On Some Agronomic Traits Of Spring Wheat (Triticum Aestivum L.), Imtiaz Khan, Gul Hassan, Muhammad Ishfaq Khan, Meher Gul
Turkish Journal of Agriculture and Forestry
A field experiment was conducted to determine the effect of wild oat (Avena fatua) densities on wheat (Triticum aestivum) yield, its components and protein content under varying nitrogen regimes, at the Agricultural Research Farm, North West Frontier Province Agricultural University, Peshawar, Pakistan, during winter 2004-5. The experiment comprised 3 nitrogen levels (75, 100, and 125 kg ha^{-1}) assigned to main plots and 5 wild oat densities (0, 10, 20, 30, and 40 plants m^{-2}) kept in sub-plots. The data were recorded on some agronomic and physiological parameters of wheat and wild oats. The statistical analyses of the data exhibited non-significant …
Determination Of Pollen Production And Quality Of Some Local And Foreign Walnut Genotypes In Turkey, Mehmet Sütyemez
Determination Of Pollen Production And Quality Of Some Local And Foreign Walnut Genotypes In Turkey, Mehmet Sütyemez
Turkish Journal of Agriculture and Forestry
The pollen grains of 32 different walnut cultivars and types were tested in vitro to determine their viability, germination ability, and pollen production level. Viability of pollens was determined by TTC and FDA tests. The hanging drop method and agar in petri method were used for pollen germination. Pollen production of the cultigens was determined with the hemacytometric method. The rate of pollen viability of all the investigated cultigens was high (> 80%). The germination rate of the pollens ranged from 33.28% to 50.19% and the Van 4 cultivar had the highest pollen germination rate. Although similar results were obtained …
Partial Purification Of Hen Egg White Lysozyme By Ethanol Precipitation Method And Determination Of The Thermal Stability Of Its Lyophilized Form, Seyhun Gemi̇li̇, Emi̇n Selahatti̇n Umdu, Ni̇lgün Yaprak, Fatma Işik Üstok, Fati̇h Yalçin Güneş Yener, Çi̇ğdem Meci̇toğlu Güçbi̇lmez, Saci̇de Alsoy Altinkaya, Ahmet Yemeni̇ci̇oğlu
Partial Purification Of Hen Egg White Lysozyme By Ethanol Precipitation Method And Determination Of The Thermal Stability Of Its Lyophilized Form, Seyhun Gemi̇li̇, Emi̇n Selahatti̇n Umdu, Ni̇lgün Yaprak, Fatma Işik Üstok, Fati̇h Yalçin Güneş Yener, Çi̇ğdem Meci̇toğlu Güçbi̇lmez, Saci̇de Alsoy Altinkaya, Ahmet Yemeni̇ci̇oğlu
Turkish Journal of Agriculture and Forestry
Lysozyme was partially purified from hen egg white by precipitation of non-lysozyme protein impurities during incubation in the presence of ethanol. The thermal stability of the obtained partially purified enzyme was also characterized. The incubation of diluted egg white for 2-8 h in the presence of 20% ethanol was not very effective for the partial purification of lysozyme by precipitation of major egg white proteins; however, 4- to 6-h or 6- to 8-h incubation of diluted egg white in the presence of 30% and 40% ethanol could be employed more effectively for partial purification of lysozyme. Without applying the incubation …
Growth, Yield, And Quality Of Sweet Potato (Ipomoea Batatas (L.) Lam.) Cultivars In The Southeastern Anatolian And East Mediterranean Regions Of Turkey, Mehmet Emi̇n Çalişkan, Tahsi̇n Söğüt, Erkan Boydak, Eli̇f Ertürk, Hali̇s Arioğlu
Growth, Yield, And Quality Of Sweet Potato (Ipomoea Batatas (L.) Lam.) Cultivars In The Southeastern Anatolian And East Mediterranean Regions Of Turkey, Mehmet Emi̇n Çalişkan, Tahsi̇n Söğüt, Erkan Boydak, Eli̇f Ertürk, Hali̇s Arioğlu
Turkish Journal of Agriculture and Forestry
The study was carried out to determine the adaptation potential of sweet potato crops to different regions of Turkey. The study included 9 introduced genotypes of diverse origin and 2 local genotypes that were tested in 4 locations (Diyarbakır and Şanlıurfa representing the southeastern Anatolia region, and Adana and Hatay representing the Mediterranean region) in 2000 and 2001. Haulm and storage root growth of the cultivars were monitored at monthly intervals. Total and graded storage root yield, and some quality parameters were determined at the final harvest. Although haulm and storage growth varied according to location and year, all cultivars …
Effectiveness Of Bacillus Thuringiensis Var. Kurstaki On Thaumetopoea Solitaria Frey. (Lepidoptera: Thaumetopoeidae) Larvae In Laboratory Conditions, Mehmet Kubi̇lay Er, Serpi̇l Karadağ, Cafer Mart
Effectiveness Of Bacillus Thuringiensis Var. Kurstaki On Thaumetopoea Solitaria Frey. (Lepidoptera: Thaumetopoeidae) Larvae In Laboratory Conditions, Mehmet Kubi̇lay Er, Serpi̇l Karadağ, Cafer Mart
Turkish Journal of Agriculture and Forestry
This study was conducted to determine the effect of Bacillus thuringiensis var. kurstaki on the larvae of Thaumetopoea solitaria in the search for an alternative control method with minimal undesirable side effects. Four larval stages were tested with various concentrations of the bacterium under controlled conditions by dipping pistachio saplings in relevant suspensions and feeding larvae on their leaves. The effect of B. thuringiensis var. kurstaki was significantly higher on the 1^{st} instar larvae than on the 2^{nd} and the 3^{rd} instar larvae, and the effect was significantly higher on the 2^{nd} instar larvae than on the 3^{rd} instar larvae. …