Open Access. Powered by Scholars. Published by Universities.®

Agriculture Commons™

Open Access. Powered by Scholars. Published by Universities.®

33,593 Full-Text Articles 45,923 Authors 20,574,716 Downloads 272 Institutions

All Articles in Agriculture

Faceted Search

33,593 full-text articles. Page 928 of 945.

Effect Of Exogenously Applied Spermidine On Growth And Physiology Of Citrus Rootstock Troyer Citrange Under Saline Conditions, MUHAMMAD AKBAR ANJUM 2011 TÜBİTAK

Effect Of Exogenously Applied Spermidine On Growth And Physiology Of Citrus Rootstock Troyer Citrange Under Saline Conditions, Muhammad Akbar Anjum

Turkish Journal of Agriculture and Forestry

The aim of this study was to assess the effects of spermidine (Spd) on ameliorating adverse effects of salinity in Troyer citrange seedlings. For this purpose, 6-month-old, uniform-sized seedlings of Troyer citrange were transplanted to plastic containers containing Hoagland nutrient solution. Addition of 75 mM NaCl into the nutrient solution reduced the plant growth, leaf chlorophyll content, chlorophyll fluorescence yield (Fv/Fm), net photosynthetic rate, respiration rate, and total Spd, N, and Ca^{2+} + Mg^{2+} contents of the leaves. It increased the leaf proline, total putrescine (Put), total spermine (Spm), Na^+, and Cl^- contents of the leaves. Addition of Spd (0.1 …


Sensitivity Of Cercospora Beticola Populations In Turkey To Flutriafol, Mancozeb, And Fentin Acetate, AYNUR TÜMBEK, PINAR ÖZEREN, RIZA KAYA, YAKUP ZEKAİ KATIRCIOĞLU, SALİH MADEN 2011 TÜBİTAK

Sensitivity Of Cercospora Beticola Populations In Turkey To Flutriafol, Mancozeb, And Fentin Acetate, Aynur Tümbek, Pinar Özeren, Riza Kaya, Yakup Zekai̇ Katircioğlu, Sali̇h Maden

Turkish Journal of Agriculture and Forestry

The sensitivity of sugar beet leaf spot disease caused by Cercospora beticola to fungicides used in Turkey was determined using a mycelial growth assay in petri dishes with 100 fungal isolates. The isolates were obtained from samples collected from 6 sugar beet production areas in 2005 and 2006. Flutriafol, mancozeb, and fentin acetate were added to Aspergillus complete medium (ACM) at the rates of 0.0, 0.05, 0.1, 0.5, 1.0, 5.0, and 10.0 µg mL^{-1}, and then mycelial growth was measured. ED_{50} values of flutriafol for all the isolates from the sugar beet production areas ranged from 0.04 to >10.0 µg …


Anatomical, Physical, And Mechanical Properties Of Eldar Pine (Pinus Eldarica Medw.) Grown In The Kelardasht Region, MAJID KIAEI 2011 TÜBİTAK

Anatomical, Physical, And Mechanical Properties Of Eldar Pine (Pinus Eldarica Medw.) Grown In The Kelardasht Region, Majid Kiaei

Turkish Journal of Agriculture and Forestry

The aim of this study was to determine some of the anatomical, physical, and mechanical properties of 35-year-old Pinus eldarica Medw. wood. For this purpose, 3 normal pine trees were randomly cut down from the Garagpas-Kelardasht site located in the northern part of Iran. Disks and logs of wood were cut at breast height. The testing samples were prepared along the radial axis from the pith to the bark to determine anatomical and physical properties such as annual ring width, tracheid length, oven-dry density, basic density, and volume shrinkage, and mature wood was used to measure mechanical strength characteristics such …


The Relationships Of Some Traits In Turkish Winter Bread Wheat Landraces, MEVLÜT AKÇURA 2011 TÜBİTAK

The Relationships Of Some Traits In Turkish Winter Bread Wheat Landraces, Mevlüt Akçura

Turkish Journal of Agriculture and Forestry

In this study, 42 bread wheat pure lines obtained from 340 landraces, collected from 35 provinces of 7 regions in Turkey, and 7 modern bread wheat cultivars were evaluated under rainfed conditions in Konya, in 2005-2006 and 2006-2007 growing seasons. Experiments were conducted in a 7 × 7 lattice design in 3 replicates. Both genotype-traits (GT) biplot analysis and path analysis were used to investigate the relationships between grain yield and 12 traits. Applying both types of analyses to the multiple traits data revealed that GT biplot graphically displayed the interrelationships among traits (breeding objectives), identified traits that are positively …


Determination Of The Effect Of Biodiesel Use On Power Take-Off Performance Characteristics Of An Agricultural Tractor In A Test Laboratory, ALİ AYBEK, EMRULLAH BAŞER, SELÇUK ARSLAN, MUSTAFA ÜÇGÜL 2011 TÜBİTAK

Determination Of The Effect Of Biodiesel Use On Power Take-Off Performance Characteristics Of An Agricultural Tractor In A Test Laboratory, Ali̇ Aybek, Emrullah Başer, Selçuk Arslan, Mustafa Üçgül

Turkish Journal of Agriculture and Forestry

Tractor performance tests conducted under laboratory test conditions are important because these tests determine the performance characteristics used to compare strengths and weaknesses of tractors. The objective of this study was to determine the effect of diesel fuel (B0) and 3 different biodiesel blends made of canola oil (B10, B20, B30) on tractor power take-off (PTO) performance characteristics. Performance characteristics studied were PTO power, engine torque, engine fuel consumption, and specific fuel consumption on an agricultural tractor (Massey Ferguson 3056 2WD) at the test laboratory of the Directorate of Agricultural Machinery Test Center (TAMTEST), Ministry of Agriculture and Rural Affairs, …


Effects Of Nitrogen And Harvesting Time On Chemical Composition Of Biomass Of Sudan Grass, Fodder Sorghum, And Their Hybrid, DORDE GLAMOCLIJA, SNEZANA JANKOVIC, SVETO RAKIC, RADOJKA MALETIC, JELA IKANOVIC, ZELJKO LAKIC 2011 TÜBİTAK

Effects Of Nitrogen And Harvesting Time On Chemical Composition Of Biomass Of Sudan Grass, Fodder Sorghum, And Their Hybrid, Dorde Glamoclija, Snezana Jankovic, Sveto Rakic, Radojka Maletic, Jela Ikanovic, Zeljko Lakic

Turkish Journal of Agriculture and Forestry

The subject of this study is 2-year variability research (2007 and 2008) of the chemical composition of naturally dried biomass samples of 3 different sorghum species, which are widely used in the southeast Balkans. Samples of Sudan grass Zora, fodder sorghum NS-Dzin, and their hybrid Siloking were examined based on the quantity of used nitrogen and the harvest time. Plants were grown in the experimental field of Radmilovac (property of the Faculty of Agriculture in Belgrade) in a randomized block, split-split plot design with 3 replications for 2 years. Naturally dried biomass with the highest amount of total proteins was …


The Investigation Of Antimicrobial Activity Of Thyme And Oregano Essential Oils, BÜLENT ÇETİN, SONGÜL ÇAKMAKÇI, RAMAZAN ÇAKMAKÇI 2011 TÜBİTAK

The Investigation Of Antimicrobial Activity Of Thyme And Oregano Essential Oils, Bülent Çeti̇n, Songül Çakmakçi, Ramazan Çakmakçi

Turkish Journal of Agriculture and Forestry

The aim of this study is to investigate in-vitro antimicrobial effects of the essential oils from oregano (Origanum acutidens and Origanum rotundifolium) and thyme (Thymus sipyleus subsp. sipyleus var. rosulans). The chemical composition and antimicrobial attributes of the essential oils obtained from the aerial parts of the plants, of which there were 3 Lamiaceae species, have been studied. A total of 43 microorganisms, including 26 bacteria, 14 fungi, and 3 yeasts species, have been studied by using disc-diffusion (DD) and minimal inhibition concentration (MIC) methods. Mean inhibition zones and MIC values of bacterial strains varied from 8 and 72 mm …


Utilization Of Boron Compounds As Synergists With Ammonium Polyphosphate For Flame Retardant Wood-Polymer Composites, RAMAZAN KURT, FATİH MENGELOĞLU 2011 TÜBİTAK

Utilization Of Boron Compounds As Synergists With Ammonium Polyphosphate For Flame Retardant Wood-Polymer Composites, Ramazan Kurt, Fati̇h Mengeloğlu

Turkish Journal of Agriculture and Forestry

The investigation consisted of utilizing boron compounds (BCs) as a synergist with ammonium polyphosphate (APP) in manufacturing flame retardant wood-polymer composites (WPCs). Flame retardants (FRs) at various ratios (APP, boric acid (BA), borax (BX), zinc borate and BA/BX mixtures) were used to determine the physical, mechanical, and burning rate properties of WPCs manufactured from wood flour, polypropylene, and maleic anhydride polypropylene. The results showed that the addition of FRs reduced all mechanical properties of WPCs except for impact strength. However, this reduction was lower for samples having BCs in FRs formulation. Similar burning rate results were achieved in WPCs having …


Evaluation Of Some Wood Quality Measures Of Eight-Year-Old Melia Azedarach Trees, LOUTFY IBRAHIM EL-JUHANY 2011 TÜBİTAK

Evaluation Of Some Wood Quality Measures Of Eight-Year-Old Melia Azedarach Trees, Loutfy Ibrahim El-Juhany

Turkish Journal of Agriculture and Forestry

This study investigated the wood quality of 8-year-old Melia azedarach trees grown in Saudi Arabia. The wood quality of the trees was studied in terms of fibre length, specific gravity, and heartwood/sapwood area. The sampled trees were felled, their stem height and diameter were measured, and discs were cut from the stem base and breast height of each tree. Fibre length and specific gravity at breast height were determined, as well as the area and proportion of heartwood and sapwood at both base- and breast-height cross sections. The results showed that the fibre length of Melia azedarach wood varied between …


Quality Parameters And Total Phenolic Content In Tomato Fruits Regarding Cultivar And Microclimatic Conditions, NINA KACJAN MARSIC, LEA GASPERLIN, VERONIKA ABRAM, MAJA BUDIC, RAJKO VIDRIH 2011 TÜBİTAK

Quality Parameters And Total Phenolic Content In Tomato Fruits Regarding Cultivar And Microclimatic Conditions, Nina Kacjan Marsic, Lea Gasperlin, Veronika Abram, Maja Budic, Rajko Vidrih

Turkish Journal of Agriculture and Forestry

The aim of this research was to evaluate the color, firmness, and total phenolic (TP) content in tomatoes according to cultivar and growing conditions. Cultivars with oval, elongated, round, and cherry-shaped fruits of determinate tomato were grown in Mediterranean (Dragonja Valley) and continental regions. Experiments in the continental region were conducted outdoors (Ljubljana-field) and under a low tunnel (Ljubljana-tunnel). Results indicated that the color and firmness were significantly influenced by the typology of the cultivars and by the maturity stage associated with the climatic conditions. Oval, elongated, and cherry fruits had darker and more intensely red fruit skins, with significantly …


Time-Dependent Changes In Distribution Patterns Of Soil Bulk Density And Penetration Resistance In A Rangeland Under Overgrazing, EKREM LÜTFİ AKSAKAL, TAŞKIN ÖZTAŞ, MÜDAHİR ÖZGÜL 2011 TÜBİTAK

Time-Dependent Changes In Distribution Patterns Of Soil Bulk Density And Penetration Resistance In A Rangeland Under Overgrazing, Ekrem Lütfi̇ Aksakal, Taşkin Öztaş, Müdahi̇r Özgül

Turkish Journal of Agriculture and Forestry

High soil bulk density and penetration resistance as an indication of soil compaction affect soil infiltration and runoff. Overgrazed rangelands are under severe erosion risk because of soil compaction. The objective of this study was to determine changes in soil bulk density and penetration resistance in a high altitude rangeland within a 3-month grazing period. A 5-ha rangeland (200 × 250 m) was transected with intervals of 25 × 5 m, and soil penetration resistance was measured at 459 points in the 20-cm surface soil layer on 3 different dates (15 July, 15 August, and 15 September). At each intersection …


Effect Of Mycorrhizal Inoculation On Growth, Nitrogen Fixation, And Nutrient Uptake In Cicer Arietinum (L.) Under Salt Stress, NEERA GARG, SHIKHA CHANDEL 2011 TÜBİTAK

Effect Of Mycorrhizal Inoculation On Growth, Nitrogen Fixation, And Nutrient Uptake In Cicer Arietinum (L.) Under Salt Stress, Neera Garg, Shikha Chandel

Turkish Journal of Agriculture and Forestry

Most legumes in natural conditions form a symbiosis with arbuscular mycorrhizal (AM) fungi. AM fungi in saline soils have been reported to improve salinity tolerance and growth in plants. In the present study, interaction between mycorrhizal fungus, Glomus mosseae, and salinity stress in relation to plant growth, nitrogen fixation, and nutrient accumulation was evaluated in Cicer arietinum (L.) (chickpea). Two genotypes of chickpea (Pusa-329, salt tolerant, and Pusa-240, salt sensitive) were compared under different levels of salinity with and without mycorrhizal inoculations. Salt stress resulted in a noticeable decline in shoot and root dry matter accumulation, resulting in a decline …


Effects Of Different Material Coatings On The Wearing Of Plowshares In Soil Tillage, MUAMMER NALBANT, A. TUFAN PALALI 2011 TÜBİTAK

Effects Of Different Material Coatings On The Wearing Of Plowshares In Soil Tillage, Muammer Nalbant, A. Tufan Palali

Turkish Journal of Agriculture and Forestry

The wearing behavior of coated layers on plowshares used in soil tillage was investigated. Plowshares produced from DIN EN 10 083 (30 MnB5) steel, widely used in plows, were coated with 20 \mum hard chromium by electrolysis method, 20 \mum electro-less nickel by chemical treatments, and 4 \mum titaniumnitride (TiN) by physical vapor deposition to increase wearing resistance. The coated plowshare specimens, together with uncoated plowshare specimens, were mounted on test equipment to analyze their wearing characteristics in a sandy clay loam soil at a speed of 5.8 km h^{-1}. The thickness of the coating and the mass loss of …


Effect Of Sowing Time On Grain Yield, Oil Content, And Fatty Acids In Rapeseed (Brassica Napus Subsp. Oleifera), HAKAN TURHAN, MUHAMMET KEMAL GÜL, CEM ÖMER EGESEL, FATİH KAHRIMAN 2011 TÜBİTAK

Effect Of Sowing Time On Grain Yield, Oil Content, And Fatty Acids In Rapeseed (Brassica Napus Subsp. Oleifera), Hakan Turhan, Muhammet Kemal Gül, Cem Ömer Egesel, Fati̇h Kahriman

Turkish Journal of Agriculture and Forestry

Sowing time is an important factor affecting crop yield and quality, especially in arid and semi-arid regions. The aim of this research was to investigate the effects of sowing time on the growth, yield, and quality of rapeseed genotypes and to determine genotype × sowing time interactions for grain yield and its related traits. The study was carried out using 8 winter rapeseed genotypes (H604049, H604038, H604041, Viking, Elan, Titan, Lorenz, and Trabant) and 4 sowing times (10 October, 20 October, 30 October and 10 November) during the 2005-2006 and 2006-2007 growing seasons. An NIRS system was used to determine …


Can Triticale Be Used As A Companion Crop With Red Clover?, ZEKİ ACAR, ÖZLEM ÖNAL AŞCI, UĞUR BAŞARAN, İLKNUR AYAN, HANİFE MUT 2011 TÜBİTAK

Can Triticale Be Used As A Companion Crop With Red Clover?, Zeki̇ Acar, Özlem Önal Aşci, Uğur Başaran, İlknur Ayan, Hani̇fe Mut

Turkish Journal of Agriculture and Forestry

The purpose of this research, carried out under irrigated conditions, was to determine the effects of sowing rate and harvest stage of triticale, used here as a companion plant, on hay yield of red clover and weed densities. The field studies, which were conducted as 2 separate experiments, continued over the 2004-2008 period. Each experiment continued for 3 years (Experiment I was carried out between 2004 and 2007, and Experiment II was carried out between 2005 and 2008). Red clover and triticale were sown together. Triticale was seeded at 200, 300, 500, and 650 seed m^{-2}. Plots were harvested when …


Interactions Between Rural Migration And Land Use Change In The Forest Villages In The Gökçay Watershed, CEYHUN GÖL, SEZGİN ÖZDEN, HÜSEYİN YILMAZ 2011 TÜBİTAK

Interactions Between Rural Migration And Land Use Change In The Forest Villages In The Gökçay Watershed, Ceyhun Göl, Sezgi̇n Özden, Hüseyi̇n Yilmaz

Turkish Journal of Agriculture and Forestry

This study was carried out to analyze the spatial and temporal pattern of land use/land cover change (from 1955 to 2008) and migration movement (from 1935 to 2007) in the Gökçay River Watershed. To assess this period, the necessary data were obtained from forest stand maps (1955 and 2008) and evaluated by using Geographic Information Systems. Maps of the study area dated 1955 and 2008 have been analyzed, and land use type and change on the land pattern have been investigated. The data reveal that the percentage of forest area, which was 47% in 1955, rose to 50% in 2008; …


Effect Of Acid Scarification And Cold Moist Stratification On The Germination Of Cercis Siliquastrum L. Seeds, ELIAS PIPINIS, ELIAS MILIOS, PAVLOS SMIRIS, CHRISTOS GIOUMOUSIDIS 2011 TÜBİTAK

Effect Of Acid Scarification And Cold Moist Stratification On The Germination Of Cercis Siliquastrum L. Seeds, Elias Pipinis, Elias Milios, Pavlos Smiris, Christos Gioumousidis

Turkish Journal of Agriculture and Forestry

Dormancy in Cercis siliquastrum seeds is due to the hard, impermeable seed coat and inhibition by endosperm. The effects of acid scarification, cold moist stratification, and the combination of both on breaking dormancy and enhancing seed germination were evaluated. Seeds were scarified with concentrated (95%-97%) sulfuric acid for various times (0, 20, 40, and 60 min), followed by cold moist stratification for 0, 1, 2, 3, or 4 months. Unscarified seeds did not germinate whether they were stratified (up until 4 months) or not. Similarly, seeds that were scarified (20, 40, and 60 min) and then stratified for 0 or …


Generative And Fruit Quality Characteristics Of Primocane Fruiting Red Raspberry Cultivars, JASMINKA M. MILIVOJEVIC, MIHAILO D. NIKOLIC, JELENA J. DRAGISIC MAKSIMOVIC, DRAGAN D. RADIVOJEVIC 2011 TÜBİTAK

Generative And Fruit Quality Characteristics Of Primocane Fruiting Red Raspberry Cultivars, Jasminka M. Milivojevic, Mihailo D. Nikolic, Jelena J. Dragisic Maksimovic, Dragan D. Radivojevic

Turkish Journal of Agriculture and Forestry

Eight primocane fruiting red raspberry cultivars grown at the Experimental station "Radmilovac", a collective raspberry orchard of the Faculty of Agriculture, Belgrade University, were harvested in 2008 and 2009. The cultivars evaluated were 'Autumn Bliss', 'Lyulin', 'Polana', 'Polka', 'Himbo Top', 'Ruby', 'Rossana', and 'Heritage'. All cultivars were evaluated for their standard parameters of productivity (number of fruiting laterals and fruit per primocane, both yield per primocane and per meter of hedgerow) and fruit quality (fruit weight, number of drupelets per fruit, soluble solids content, and titratable acidity), and also of nutritional value (Total Antioxidant Capacity (TAC) and Total Phenolics (TPH)). …


Effect Of Different Irrigation Water Salinities On Some Yield And Quality Components Of Two Field-Grown Cucurbit Species, LI ZONG, ANNA TEDESCHI, XIAN XUE, TAO WANG, MASSIMO MENENTI, CUIHUA HUANG 2011 TÜBİTAK

Effect Of Different Irrigation Water Salinities On Some Yield And Quality Components Of Two Field-Grown Cucurbit Species, Li Zong, Anna Tedeschi, Xian Xue, Tao Wang, Massimo Menenti, Cuihua Huang

Turkish Journal of Agriculture and Forestry

Using irrigation water with a salinity level of 0.8, 2, and 5 g L^{-1}, the impact of saline water irrigation on the yield and quality of 2 Chinese Cucurbit species, melon (Cucumis melo cv. Huanghe) and watermelon (Citrullus lanatus. convar megulaspemus) were studied in Minqin Oasis, northwestern China. Our results show that melon yields decreased as water salinity increased, just as concentrations of glutamic acid content rose, although the concentration of most amino acids did not differ significantly. In contrast, watermelon yields decreased significantly as water salinity rose, and fruit number, fruit firmness, fruit crude protein, and essential amino acid …


Aba-Mediated Proline Synthesis In Cowpea Leaves Exposed To Water Deficiency And Rehydration, ROBERTO CEZAR LOBO DA COSTA, ALLAN KLYNGER DA SILVA LOBATO, JOAQUIM ALBENÍSIO GOMES DA SILVEIRA, HAYWOOD DAIL LAUGHINGHOUSE IV 2011 TÜBİTAK

Aba-Mediated Proline Synthesis In Cowpea Leaves Exposed To Water Deficiency And Rehydration, Roberto Cezar Lobo Da Costa, Allan Klynger Da Silva Lobato, Joaquim Albenísio Gomes Da Silveira, Haywood Dail Laughinghouse Iv

Turkish Journal of Agriculture and Forestry

The aim of this study was (i) to evaluate the impact of water deficit and rehydration on nitrogen compounds and abscisic acid of Vigna unguiculata leaves, and (ii) to investigate the hypothesis that abscisic acid influences proline. The experimental design was entirely randomized in a factorial design, with 2 water conditions (control and stress) and 7 evaluation periods (0, 1, 2, 3, and 4 days under water deficit, followed by the 5th and 6th day under rehydration). The leaf relative water content presented significant reduction, presenting a lower value on the 4th day of treatment under water deficit. After rehydration, …


Digital Commons powered by bepress