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Articles 1 - 30 of 64
Full-Text Articles in Forest Sciences
Oregon Aspen Project, Forest Restoration Partnership
Oregon Aspen Project, Forest Restoration Partnership
Aspen Bibliography
The Oregon Aspen Project was initiated in response to the decline of aspen groves in Oregon and throughout the Western United States, and the lack of information to guide managers interested in stewardship to enhance this resource. There were three central goals and accompanying objectives for this project which are listed below. The project accomplishments are provided below each bulleted objective
Radiative Forcing Over The Conterminous United States Due To Contemporary Land Cover Use Change And Sensitivity To Snow And Interannual Albedo Variability, Christoper A. Barnes, David P. Roy
Radiative Forcing Over The Conterminous United States Due To Contemporary Land Cover Use Change And Sensitivity To Snow And Interannual Albedo Variability, Christoper A. Barnes, David P. Roy
GSCE Faculty Publications
Satellite‐derived land cover land use (LCLU), snow and albedo data, and incoming surface solar radiation reanalysis data were used to study the impact of LCLU change from 1973 to 2000 on surface albedo and radiative forcing for 58 ecoregions covering 69% of the conterminous United States. A net positive surface radiative forcing (i.e., warming) of 0.029 Wm−2 due to LCLU albedo change from 1973 to 2000 was estimated. The forcings for individual ecoregions were similar in magnitude to current global forcing estimates, with the most negative forcing (as low as −0.367 Wm−2) due to the transition to forest and the …
Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2008, Jennie Popp, Nathan Kemper, Wayne Miller, Katherine Mcgraw, Kyle Karr
Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2008, Jennie Popp, Nathan Kemper, Wayne Miller, Katherine Mcgraw, Kyle Karr
Research Reports and Research Bulletins
This report is the fifth in a series of reports examining agriculture’s economic contribution to the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economics Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and Minnesota IMPLAN Group, Inc. (MIG), the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2008. Gross Domestic Product (GDP) by State information for Arkansas was compared with those of other states in the southeast U.S. to give a measure of the relative importance of agriculture in Arkansas.2 The total economic contribution …
Damage Agents And Condition Of Mature Aspen Stands In Montana And Northern Idaho, Brytten E. Steed, Holly S.J. Kearns
Damage Agents And Condition Of Mature Aspen Stands In Montana And Northern Idaho, Brytten E. Steed, Holly S.J. Kearns
Aspen Bibliography
No abstract provided.
Section Abstracts: Agriculture, Forestry, And Aquaculture Science
Section Abstracts: Agriculture, Forestry, And Aquaculture Science
Virginia Journal of Science
Abstracts of the Agriculture, Forestry, and Aquaculture Science Section for the 88th Annual Meeting of the Virginia Academy of Science, May 20-21, 2010, James Madison University, Harrisonburg, VA.
Evaluation Of Late Season Drought Effects On Seed And Oil Yields In Spring Safflower Genotypes, Bahman Pasban Eslam, Hassan Monirifar, Mastaneh Taher Ghassemi
Evaluation Of Late Season Drought Effects On Seed And Oil Yields In Spring Safflower Genotypes, Bahman Pasban Eslam, Hassan Monirifar, Mastaneh Taher Ghassemi
Turkish Journal of Agriculture and Forestry
Seed and oil yields, their components, and the relationships among yield and related traits were measured in 5 spring safflower (Carthamus tinctorius L.) genotypes, Local Arak, Local Esfahan, Sina, KH_{23-57}, and Goldasht, under nonstressed and water deficit conditions imposed from late flowering (80% flowering) to maturity. The studies were conducted in loam soil at the Research Center for Agriculture and Natural Resources of East Azarbaijan, Iran (46°2'E, 37°58'N) during 3 successive years (2005-2007). According to the significant decrease in the number of seeds per capitulum, 1000-seeds weight, harvest index, and seed and oil yields under water deficit conditions, it seems …
Effects Of Rhizobium Strains Isolated From Wild Chickpeas On The Growth And Symbiotic Performance Of Chickpeas (Cicer Arietinum L.) Under Salt Stress, Hati̇ce Öğütçü, Caner Kasimoğlu, Erdal Elkoca
Effects Of Rhizobium Strains Isolated From Wild Chickpeas On The Growth And Symbiotic Performance Of Chickpeas (Cicer Arietinum L.) Under Salt Stress, Hati̇ce Öğütçü, Caner Kasimoğlu, Erdal Elkoca
Turkish Journal of Agriculture and Forestry
This study was conducted in order to evaluate the symbiotic effectiveness of Rhizobium leguminosarum bv. ciceri strains isolated from perennial wild chickpeas (Cicer anatolicum) in comparison to standard bacterial culture, N application, and uninoculated control under NaCl salinity stress conditions. For this purpose, 4 strains (DN1, DN7, TN3, and TN4) were obtained from wild chickpeas. Chickpea (Cicer arietinum L.) seeds were inoculated with these strains and grown in pots containing sterile sand under different levels of NaCl (0, 50, and 100 mM) in a controlled plant growth cabinet. Dry weights of root and shoot, root-to-shoot ratio (RSR), number and dry …
A Staining Method For Determining Severity Of Tension Wood, Ayşe Di̇lek Doğu, Michael Grabner
A Staining Method For Determining Severity Of Tension Wood, Ayşe Di̇lek Doğu, Michael Grabner
Turkish Journal of Agriculture and Forestry
Tension wood is considered to be an important defect by the wood processing industries. A considerable amount of research has been done to determine the presence and structure of tension wood; however, there is a need to find a quick, practical, and applicable method to evaluate the severity of tension wood. This study investigated whether zinc-chlorine-iodide (Herzberg reagent) could be applied in determination of tension wood severity. Fagus sylvatica L. (beech wood), Populus alba L. (poplar wood), and Quercus robur L. and Quercus rubra L. (oak wood) species were used in this study. The results were compared with safranin/astra blue …
Cloning, Characterization, And Expression Of The Gene Encoding Polygalacturonase- Inhibiting Proteins From Strawberry, Yong Zhang, Hao-Ru Tang, Yan-Xia Hou, Hao Jiang, Ya Luo, Jie Zhang
Cloning, Characterization, And Expression Of The Gene Encoding Polygalacturonase- Inhibiting Proteins From Strawberry, Yong Zhang, Hao-Ru Tang, Yan-Xia Hou, Hao Jiang, Ya Luo, Jie Zhang
Turkish Journal of Agriculture and Forestry
Polygalacturonase-inhibiting proteins (PGIP) play important roles in the defense against plant pathogens, especially fungi. The sequence of strawberry PGIP gene was obtained using reverse transcription PCR (RT-PCR) and its expression in different tissues was studied by semi-quantitative RT-PCR. A cDNA fragment of FaPGIP gene was cloned and the sequence analysis shows that the fragment contains a full ORF of 999 bp encoding 332 amino acids. The FaPGIP gene from genomic DNA shows a single 168bp intron that is efficiently spliced out of the FaPGIP pre-mRNA transcript. The FaPGIP has a high degree of identity with previously isolated PGIP genes and …
Prey Preference, Interaction With Selected Natural Enemies, And Alternative Nutritional Sources Of The Mirid Bug Dicyphus Tamaninii Wagner, Ihab Ghabeish, Azzam Saleh, Abdulfattah Dababat
Prey Preference, Interaction With Selected Natural Enemies, And Alternative Nutritional Sources Of The Mirid Bug Dicyphus Tamaninii Wagner, Ihab Ghabeish, Azzam Saleh, Abdulfattah Dababat
Turkish Journal of Agriculture and Forestry
The present study aimed to investigate the prey preference of the omnivorous bug Dicyphus tamaninii Wagner (Heteroptera: Miridae) among 5 different prey species, and its interaction with 3 different natural enemies commonly used in greenhouses. Moreover, the survival duration of the predator was studied in response to different nutritional sources. In multi-choice trials all developmental stages of the predator tested, namely N_3, N_5, and adult female, showed a clear preference for Aphis gossypii Glover over other prey species offered. Nonetheless, a considerable number of Tetranychus urticae Koch, Frankliniella occidentalis (Pergande), and Trialeurodes vaporariorum (Westwood) were also consumed. Myzus persicae (Sulzer) …
The Influence Of Vernalization Time And Day Length On Flower Induction Of Radish (Raphanus Sativus L.) Under Controlled And Field Conditions, Haluk Çağlar Kaymak, İsmai̇l Güvenç
The Influence Of Vernalization Time And Day Length On Flower Induction Of Radish (Raphanus Sativus L.) Under Controlled And Field Conditions, Haluk Çağlar Kaymak, İsmai̇l Güvenç
Turkish Journal of Agriculture and Forestry
This research was carried out to identify an alternative model plant for the study of vernalization among the cultivars that are commonly grown in Turkey and the influence of vernalization and day length on the flowering of radishes (Raphanus sativus L.) under controlled and field conditions throughout 2003, 2004, and 2005. In this study, 6 radish cultivars (Raphanus sativus L. cvs. 'Siyah,' 'Beyaz,' 'Antep,' 'İri Kırmızı,' 'Red Cherry F_1,' and 'Cherry Belle') were used in the laboratory and field experiments as plant material. Under the controlled conditions, 2 day length periods (8 and 16 h light) and 5 vernalization times …
Temperature Dependent Development Of The Egg-Larval Parasitoid Chelonus Oculator On The Factitious Host, Ephestia Cautella, Hi̇lal Tunca, Cem Özkan, Ahmet Neşet Kilinçer
Temperature Dependent Development Of The Egg-Larval Parasitoid Chelonus Oculator On The Factitious Host, Ephestia Cautella, Hi̇lal Tunca, Cem Özkan, Ahmet Neşet Kilinçer
Turkish Journal of Agriculture and Forestry
Development, fecundity, and longevity of the egg-larval parasitoid Chelonus oculator Panzer (Hymenoptera: Braconidae) were studied on the factitious host, Ephestia cautella (Walker) (Lepidoptera: Pyralidae) at 4 different temperatures (15 °C, 20 °C, 25 °C, and 30 °C). Developmental time from egg to adult was inversely related to temperature. Egg to adult development time ranged from 188 days at 15 °C to 28 days at 30 °C. Complete development required 489 degree-days with a developmental threshold of 12.5 °C. Adult male and female longevity ranged from 43 days at 20 °C to 17 days at 30 °C. Maximum production of offspring …
Phytoremediation Of Total Petroleum Hydrocarbons (Tphs) Using Plant Species In Iran, Ali Daryabeigi Zand, Gholamreza Nabi Bidhendi, Nasser Mehrdadi
Phytoremediation Of Total Petroleum Hydrocarbons (Tphs) Using Plant Species In Iran, Ali Daryabeigi Zand, Gholamreza Nabi Bidhendi, Nasser Mehrdadi
Turkish Journal of Agriculture and Forestry
Plant-based remediation is a relatively new, efficient, and environmentally friendly technology, which can be promising for removing many contaminants like hydrocarbon pollutants. The main objectives of the current study were to investigate the effect of petroleum hydrocarbons with high initial concentration (about 3.5% by weight) on growth characteristics of maize (Zea mays L.), and tall fescue (Festuca arundinacea) as well as to evaluate the phytoremediation potential of the 2 mentioned plant species in highly contaminated, aged soil. In order to improve the condition of soil nutrients and also study the effect of soil amendment on plant growth, peat amendment was …
The Determination Of Pneumatic Conveying Characteristics Of Chickpea, Ahmet Kiliçkan, Meti̇n Güner
The Determination Of Pneumatic Conveying Characteristics Of Chickpea, Ahmet Kiliçkan, Meti̇n Güner
Turkish Journal of Agriculture and Forestry
The pneumatic conveying characteristics of chickpea (Cicer arietinum L.) of the variety Koçbasi were determined. The length, width, thickness, arithmetic mean diameter, geometric mean diameter, sphericity, volume, 1000 seed mass, bulk density, true density, porosity, projected area, terminal velocity, drag coefficient, pressure drop, power consumption, and seed damage, namely mechanical damage, germination test, and seed vigour index, were investigated experimentally. The positive low pressure system was used for the conveying of chickpeas. The power requirement and pressure drop were boosted with increasing the revolution of the blower and conveying capacity decreased with increasing pipe diameter. The highest pressure drop and …
Parametric Modeling Of Root Length Density And Root Water Uptake In Unsaturated Soil, Sina Besharat, Amir Hossein Nazemi, Ali Ashraf Sadraddini
Parametric Modeling Of Root Length Density And Root Water Uptake In Unsaturated Soil, Sina Besharat, Amir Hossein Nazemi, Ali Ashraf Sadraddini
Turkish Journal of Agriculture and Forestry
The problem of water movement through the root zone has attracted increasing interest during the last few decades. In this research, the spatial and temporal pattern of root water uptake in wetted soil was studied in the root zone of a 6-year-old apple tree. An important part of the root water uptake model is root length density, which was measured by sampling soil cores in one quarter of the root zone. The exponential model better described the observed apple root distribution. The measured data were compared against the outputs of the root density distribution model. A normalized root length density …
Regeneration And Histological Analysis Of Snake Melon (Cucumis Melo Var. Flexuosus (L.) Naudin) By Direct Organogenesis, Yeşi̇m Yalçin Mendi̇, Selay Eldoğan, Rafael Gutakev, Muzaffer İpek, Pembe Çürük, Seli̇m Çeti̇ner
Regeneration And Histological Analysis Of Snake Melon (Cucumis Melo Var. Flexuosus (L.) Naudin) By Direct Organogenesis, Yeşi̇m Yalçin Mendi̇, Selay Eldoğan, Rafael Gutakev, Muzaffer İpek, Pembe Çürük, Seli̇m Çeti̇ner
Turkish Journal of Agriculture and Forestry
In vitro morphogenesis of Cucumis melo var. flexuosus (L.) Naudin was studied by direct organogenesis. Induction of adventitious buds was obtained from distal and proximal parts of the cotyledon incubated on Murashige and Skoog (1962) medium containing different concentrations of 6-benzyladenine (BA) (0.0, 0.5, 1.0, and 2.0 mg L^{-1}) and indole-3-acetic acid (IAA) (0.0, 0.1, and 0.5 mg L^{-1}). The best organogenesis was obtained from the proximal part of the cotyledon on medium containing 0.5 mg L^{-1} BA and 0.5 mg L^{-1} IAA (88%). This concentration was used for histological analysis. Less regeneration was obtained on media containing 1.0 mg …
Effects Of Sugar Feeding On Lipid, Glycogen, And Total Sugar Levels Of A Female Parasitoid, Bracon Hebetor (Say) (Hymenoptera: Braconidae), Eylem Akman Gündüz, Adem Gülel, Özgür Varer Işitan, Ali̇ Boz, Özlem Cesur
Effects Of Sugar Feeding On Lipid, Glycogen, And Total Sugar Levels Of A Female Parasitoid, Bracon Hebetor (Say) (Hymenoptera: Braconidae), Eylem Akman Gündüz, Adem Gülel, Özgür Varer Işitan, Ali̇ Boz, Özlem Cesur
Turkish Journal of Agriculture and Forestry
The goal of this study was to compare the lipid, glycogen, and total sugar levels in completely starved (no water or sugar provided), honey-fed, sucrose-fed, or sugar-starved (only water provided) females of the parasitoid Bracon hebetor (Say) (Hymenoptera: Braconidae). We also quantified the lipid, glycogen, and total sugar levels in newly emerged unfed (day 0) female (n = 30) wasps. The mean amounts of reserves obtained from these females were regarded as a standard for the initial amount of reserves. The glycogen level of emerging females was 17.99 ± 2.02 \mug. As expected, sucrose- or honey-fed females had significantly higher …
Effects Of Climate Change On Water Resources Of The Büyük Menderes River Basin, Western Turkey, Ömer Faruk Durdu
Effects Of Climate Change On Water Resources Of The Büyük Menderes River Basin, Western Turkey, Ömer Faruk Durdu
Turkish Journal of Agriculture and Forestry
Temperature and rainfall changes are both significant components of climate change. This study characterizes the effects of climate change on water resources in the Büyük Menderes river basin in western Turkey, based on hydrology, temperature, and rainfall data from the past 45 years (1963-2007). When analyzed with the Mann-Whitney test, the temperature and precipitation time series exhibited obvious step changes with a 5% level of significance. Both the parametric t-test and nonparametric Mann-Kendall statistical test results showed an increasing trend of the temperature. Over the past 45 years, the temperature increased just about 1 °C. The long-term trend of annual …
Zinc Alleviates Salt Stress And Increases Antioxidant Enzyme Activity In The Leaves Of Pistachio (Pistacia Vera L. ‘Badami’) Seedlings, Vahid Tavallali, Majid Rahemi, Saeed Eshghi, Bahman Kholdebarin, Asghar Ramezanian
Zinc Alleviates Salt Stress And Increases Antioxidant Enzyme Activity In The Leaves Of Pistachio (Pistacia Vera L. ‘Badami’) Seedlings, Vahid Tavallali, Majid Rahemi, Saeed Eshghi, Bahman Kholdebarin, Asghar Ramezanian
Turkish Journal of Agriculture and Forestry
The mechanism(s) by which Zn alleviates NaCl stress was investigated in Pistacia vera L. 'Badami'. Pistachio seedlings were treated with 0, 800, 1600, 2400, and 3200 mg of NaCl kg^{-1} of soil, along with Zn (0, 5, 10, and 20 mg kg^{-1} of soil). NaCl stress induced high oxidative stress, increasing lipid peroxidation, electrolyte leakage, and lipoxygenase (LOX, E.C. 1.13.11.12) activity to high levels. Zn supplement efficiently reduced all these adverse effects of salt stress. However, there were no significant differences among the above parameters in plants treated with Zn only. NaCl stress significantly increased the activity of antioxidant enzymes. …
Properties Of Particleboard Produced With Liquefaction-Modified Phenol-Formaldehyde Adhesive, Jung-Uk Lee, Yong-Sung Oh
Properties Of Particleboard Produced With Liquefaction-Modified Phenol-Formaldehyde Adhesive, Jung-Uk Lee, Yong-Sung Oh
Turkish Journal of Agriculture and Forestry
Pinus densiflora wood flour was liquefied in the presence of phenol, using sulfuric acid as a catalyst. Liquefaction-modified phenol-formaldehyde (LPF) resins were synthesized as particleboard binder. The physical characteristics of the laboratory-synthesized control PF resin and the LPF resins are described. Laboratory particleboard (PB) was made using Korean hybrid poplar (Populus alba × glandulosa) particles with the control PF resin and LPF resins. The physical strength and dimensional stability of the PBs were tested according to ASTM D 1037-99 and KS F 3104 standard procedures. PB test results show that the physical and mechanical strength properties differed significantly according to …
The Effect Of Nitrogen And Phosphorus Fertilization On Yield, Some Fruit Characteristics, Hormone Concentrations, And Alternate Bearing In Pistachio, Nurdan Tuna Güneş, Yeşi̇m Okay, A. İlhami̇ Köksal, Mehmet Köroğlu
The Effect Of Nitrogen And Phosphorus Fertilization On Yield, Some Fruit Characteristics, Hormone Concentrations, And Alternate Bearing In Pistachio, Nurdan Tuna Güneş, Yeşi̇m Okay, A. İlhami̇ Köksal, Mehmet Köroğlu
Turkish Journal of Agriculture and Forestry
This research was carried out in order to determine the effects of nitrogen and phosphorus fertilization on yield, some fruit characteristics, hormone concentrations, and alternate bearing in pistachio (Pistacia vera L.) cv. 'Kırmızı' grafted on P. vera over 3 consecutive years. Nitrogen was applied at the rate of 0 (control), 800, 1000, and 1200 g tree^{-1}, and phosphorus was applied at the rate of 0 (control), 200, 400, and 600 g tree^{-1} into the soil. As a result, although yield mostly decreased and nut weight increased, especially in the 2^{nd} year ('off' year), considerable interactions among fertilizer rates were determined …
A New Study On The Bacteria Of Agrotis Segetum Schiff. (Lepidoptera: Noctuidae) And Their Insecticidal Activities, Ali̇ Sevi̇m, Zi̇hni̇ Demi̇rbağ, İsmai̇l Demi̇r
A New Study On The Bacteria Of Agrotis Segetum Schiff. (Lepidoptera: Noctuidae) And Their Insecticidal Activities, Ali̇ Sevi̇m, Zi̇hni̇ Demi̇rbağ, İsmai̇l Demi̇r
Turkish Journal of Agriculture and Forestry
Agrotis segetum Schiff. (Lepidoptera: Noctuidae) is one of the most serious pests of nearly all vegetables in Turkey. In this study, to find a more effective and safe biological control agent, the bacterial flora of Agrotis segetum were investigated in larvae collected from different populations in the vegetable fields of the Black Sea region of Turkey, and 9 bacterial isolates were cultured from these populations. Seven of these bacteria were determined and characterized at the species level and the rest were characterized at the genus level. Morphological, physiological, and biochemical characteristics of the bacterial isolates were determined by conventional and …
Linear-Like Discrete-Time Fuzzy Control In The Regulation Of Irrigation Canals, Ömer Faruk Durdu
Linear-Like Discrete-Time Fuzzy Control In The Regulation Of Irrigation Canals, Ömer Faruk Durdu
Turkish Journal of Agriculture and Forestry
A linear-like discrete-time fuzzy controller was designed to control and stabilize a single-pool irrigation canal. Saint Venant equations for open-channel flow were linearized using the Taylor series and a finite-difference approximation of the original nonlinear partial differential equations. Using the linear optimal control theory, a traditional linear quadratic regulator (LQR) was first developed for an irrigation canal with a single-pool, and the results were observed. Then a linear-like global system representation of a discrete-time fuzzy system was proposed by viewing a discrete-time fuzzy system in a global concept and unifying the individual matrices into synthetic matrices. This linear-like representation aided …
Impact Of Irrigation Water Quality, Irrigation Systems, Irrigation Rates And Soil Amendments On Tomato Production In Sandy Calcareous Soil, Abdulrasoul M. Al-Omran, A. R. Al-Harbi, Mahmoud A. Wahb-Allah, Mahmoud Nadeem, Ali Al-Eter
Impact Of Irrigation Water Quality, Irrigation Systems, Irrigation Rates And Soil Amendments On Tomato Production In Sandy Calcareous Soil, Abdulrasoul M. Al-Omran, A. R. Al-Harbi, Mahmoud A. Wahb-Allah, Mahmoud Nadeem, Ali Al-Eter
Turkish Journal of Agriculture and Forestry
Low quality water for irrigation can impose a major environmental constraint to crop productivity. Effects of water quality, irrigation system, irrigation rates, and type of amendment on the yield and quality of tomato plants were investigated during the 2 growing seasons of 2005/2006 and 2006/2007. Two water quality treatments (fresh water with electrical conductivity (EC) of 0.86 dS m^{-1}, and saline water with EC of 3.6 dS m^{-1}), 2 drip irrigation systems (surface and subsurface), 3 irrigation rates (2, 4, and 6 L h^{-1}) and 3 amendment types (clay deposit, and organic matter and without amendment) were applied. The results …
Allelopathic Potential Of Euphorbia Helioscopia L. Against Wheat (Triticum Aestivum L.), Chickpea (Cicer Arietinum L.) And Lentil (Lens Culinaris Medic.), Asif Tanveer, Aqeel Rehman, Muhammad Mansoor Javaid, Rana Nadeem Abbas, Muhammad Sibtain, Azraf Ul Haq Ahmad, Muhammad Sahid Ibin-I-Zamir, K. M. Chaudhary, A. Aziz
Allelopathic Potential Of Euphorbia Helioscopia L. Against Wheat (Triticum Aestivum L.), Chickpea (Cicer Arietinum L.) And Lentil (Lens Culinaris Medic.), Asif Tanveer, Aqeel Rehman, Muhammad Mansoor Javaid, Rana Nadeem Abbas, Muhammad Sibtain, Azraf Ul Haq Ahmad, Muhammad Sahid Ibin-I-Zamir, K. M. Chaudhary, A. Aziz
Turkish Journal of Agriculture and Forestry
Studies investigating the allelopathic effect of root, stem, leaf, and fruit water extracts and infested soil of Euphorbia helioscopia L. on the seed germination and seedling growth of wheat, chickpea, and lentil were conducted in a completely randomized design with 4 replications. Water extracts of root, stem, leaf, and fruit were prepared by soaking dried plant parts of E. helioscopia in water (1:20 w/v) for a period of 24 h. Seedling emergence, seedling vigor index, and total dry weight of wheat, chickpea, and lentil seedlings were significantly reduced when these crops were grown in soil taken from an E. helioscopia …
The Effects Of Biogas Slurry On The Production And Quality Of Maize Fodder, Md. Rafiqul Islam, Syed Mohammad Ehsanur Rahman, Md. Mukhlesur Rahman, Deog Hwan Oh, Chang Six Ra
The Effects Of Biogas Slurry On The Production And Quality Of Maize Fodder, Md. Rafiqul Islam, Syed Mohammad Ehsanur Rahman, Md. Mukhlesur Rahman, Deog Hwan Oh, Chang Six Ra
Turkish Journal of Agriculture and Forestry
The present study examined the effectiveness of biogas slurry (liquor from anaerobic digestion process) as a nitrogen source for the production of maize fodder (Zea mays). Maize fodder was cultivated as a control (T_0: 0 kg of slurry N ha^{-1}) and with 3 different levels of biogas slurry-T_1 (60 kg of slurry N ha^{-1}), T_2 (70 kg of slurry N ha^{-1}), and T_3 (82 kg of slurry N ha^{-1})-in a randomized block design. The parameters studied were plant height, stem circumference, number of leaves, leaf area, dry matter yield, and nutrient contents in maize fodder. Maize plant height and stem …
The Effect Of Different Nitrogen And Irrigation Levels On Grain Β-Glucan Content In Some Durum Wheat Cultivars, Mustafa Güler
The Effect Of Different Nitrogen And Irrigation Levels On Grain Β-Glucan Content In Some Durum Wheat Cultivars, Mustafa Güler
Turkish Journal of Agriculture and Forestry
\beta-glucan is a non-starchy, water-soluble polysaccharide component of wheat grain that positively affects grain nutrient quality. High \beta-glucan content in wheat grain also has a cholesterol-lowering effect in humans. The aim of this study was to evaluate the effect of nitrogen and irrigation on durum wheat grain \beta-glucan content. Correlations between durum wheat grain \beta-glucan content, and grain yield and some quality characteristics were examined. Kunduru 1149, Kızıltan 91, and Çakmak 79 durum wheat cultivars were used as material, and 0-, 75-, and 150-mm irrigation levels with 0, 40, 80, and 120 kg ha^{-1} nitrogen rates were applied. Higher nitrogen …
Commercially Suitable Pectin Methylesterase From Valencia Orange Peels, Şebnem Şi̇mşek, Ahmet Yemeni̇ci̇oğlu
Commercially Suitable Pectin Methylesterase From Valencia Orange Peels, Şebnem Şi̇mşek, Ahmet Yemeni̇ci̇oğlu
Turkish Journal of Agriculture and Forestry
A simple and effective procedure was developed to extract pectin methylesterase (PME) from Valencia orange peels. Orange peels contain 25-34 \mumol of COOH min^{-1} g^{-1} of peel PME activity. The enzyme was ionically bound to cell walls and could not be extracted with water. This enables removal of water soluble pectic substances and oils from peels via homogenization and washing with water before enzyme extraction. Enzyme extraction can be conducted simply by addition of suitable amounts of NaCl (optimum: 10 g of NaCl 100 g^{-1} of extraction mixture) to peel homogenate and stirring (optimum: 30 min at 200 rpm). The …
The Within-Tree Variation In Wood Density And Shrinkage, And Their Relationship In Populus Euramericana, Behzad Kord, Ali Kialashaki, Behrouz Kord
The Within-Tree Variation In Wood Density And Shrinkage, And Their Relationship In Populus Euramericana, Behzad Kord, Ali Kialashaki, Behrouz Kord
Turkish Journal of Agriculture and Forestry
The patterns of wood density and shrinkage in different directions in 22-year-old Populus euramericana trees from one clone were studied in an experimental plantation in Iran. Sample disks were taken from each tree to examine wood density and shrinkage variation from pith to bark at 5%, 25%, 50%, and 75% of total tree height. The results indicate that radial position and height significantly affected all wood physical properties. Within-tree wood density and shrinkage varied at each height level, decreasing along the stem from the base upwards. Moreover, within the samples, at the same height level wood density and shrinkage in …
Genetic Identification Of Clones And The Genetic Structure Of Seed Crops In A Pinus Brutia Seed Orchard, Nuray Kaya, Kani̇ Işik
Genetic Identification Of Clones And The Genetic Structure Of Seed Crops In A Pinus Brutia Seed Orchard, Nuray Kaya, Kani̇ Işik
Turkish Journal of Agriculture and Forestry
Megagametophyte tissue in seeds from a Pinus bruia Ten. seed orchard was analyzed for 9 enzyme systems (aconitase, alcohol dehydrogenase, glutamate dehydrogenase, glutamate oxaloacetate-transaminase, malate dehydrogenase, menadione reductase, 6-phosphogluconate dehydrogenase, phosphoglucose isomerase, and shikimate dehydrogenase) encoded by 14 loci using starch gel electrophoresis. Twenty-eight clones and 3 ramets per clone were sampled from the orchard for analysis. Isozyme patterns of the clones clearly indicate that each clone had a different genotype when overall loci were taken into consideration. In 5 of the 28 clones, 1 of the 3 ramets did not match the other 2 ramets at 2 or more …