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Articles 1 - 30 of 59
Full-Text Articles in Forest Sciences
Ice Storm Damage To Virginia Coastal Plain Forests During The Christmas 1998 Ice Storm, Peter Elstner, Stewart Ware
Ice Storm Damage To Virginia Coastal Plain Forests During The Christmas 1998 Ice Storm, Peter Elstner, Stewart Ware
Virginia Journal of Science
On December 23-25, 1998, a major ice storm struck southeastern Virginia. The storm-deposited glaze ice felled trees and limbs, causing a power outage and highway blockage. Between February and April, 1999, we recorded occurrence, severity, and type of damage to trees over 2.5 cm dbh in nine mostly gently sloping plots in Matoaka Woods at the College of William and Mary. Frequency and severity of damage varied with species and with size of trees. Canopy damage occurred in 75% of large Fagus grandifolia trees, but in only 6% of small Sassafras albidum stems. As a group, small (2.5 to 15 …
An Application Of Linear Approximation Of Almost Ideal Demand System: Data From Erzurum Central District, Fahri̇ Yavuz, Mustafa Baydemi̇r
An Application Of Linear Approximation Of Almost Ideal Demand System: Data From Erzurum Central District, Fahri̇ Yavuz, Mustafa Baydemi̇r
Turkish Journal of Agriculture and Forestry
In this study, a food demand analysis of Erzurum central district was conducted. This study differs from previous ones by the use of current data and a new model. Various elasticities computed in this study might be used in the analysis of food consumption policies. The cross-sectional and time series data used were collected by surveying 30 families once every three months from July 1995 to April 1997. Data from a total of 240 families were used to divide the families into high and low income groups. A demand analysis was done using LA/AIDS for five food groups (cereal, vegetable, …
The Effect Of Wood Specimen Length On The Proportional Saturation Of Preservative Fluid In Sitka Spruce (Picea Sitchensis (Bong.)Carr.) And Corsican Pine (Pinus Nigravar.Mantima), İlker Usta, Ari̇f Güray
The Effect Of Wood Specimen Length On The Proportional Saturation Of Preservative Fluid In Sitka Spruce (Picea Sitchensis (Bong.)Carr.) And Corsican Pine (Pinus Nigravar.Mantima), İlker Usta, Ari̇f Güray
Turkish Journal of Agriculture and Forestry
In this study, the proportional saturation and the fluid uptake of preservative liquid (that was) applied under the same pressure was investigated comparatively on the various longitudinal length of wood specimens in the two softwood species. Wood specimens of Sitka spruce (Picea sitchensis (Bong.)Carr.) and Corsican pine (Pinus nigra var.mantima) representative of two different permeability classifications, cut into five different lengths were treated with tanalith-C using the full-cell process under the same conditions. It appeared that longitudinal fluid flow decreased with increased specimen lengths. The shorter lengths were saturated effectively due to the shorter flow paths,and their retentions were higher …
Provenance Variations In 3-Year-Old Lebanon Cedar (Cedrus Libani A. Rich.) Seedlings, Ali̇ Demi̇rci̇, Nebi̇ Bi̇li̇r
Provenance Variations In 3-Year-Old Lebanon Cedar (Cedrus Libani A. Rich.) Seedlings, Ali̇ Demi̇rci̇, Nebi̇ Bi̇li̇r
Turkish Journal of Agriculture and Forestry
This research was realized to study the morphological characteristics of 3-0 years old seedlings, obtained from seeds, which were collected from 22 Lebanon cedar seed stands. The seedlings were grown at the Nursery of the Black Sea Technical University. Seedling morphological properties were studied including height, root-collar diameter, number of branches, the length of the longest branch, and fresh and dry weights of root, stem, and seedlings. Means of these properties were found to be 20.8 cm for height, 4.1 mm for root-collar diameter, 7.1 for number of branches, 7.2 cm for the length of the longest branch, 3.6 g …
Defining Effective Salt Leaching Regions Between Drains, Ömer Anapali, Üstün Şahi̇n, Taşkin Öztaş, Abdurrahman Hanay
Defining Effective Salt Leaching Regions Between Drains, Ömer Anapali, Üstün Şahi̇n, Taşkin Öztaş, Abdurrahman Hanay
Turkish Journal of Agriculture and Forestry
The application of sufficient amounts of leaching water by means of an effective method is very important in the management and reclamation of saline and sodic soils. Reclamation cannot be achieved with insufficient leaching water application, while excess water application may cause severe problems in soil. Knowledge of the leaching regions and intensities may help to control the amounts of leaching water through effective leaching methods in areas of limited leaching. This study was undertaken to define the vertical and horizontal leaching regions between drains,using geostatistical methods under laboratory conditions. Vertical and horizontal distribution patterns of soil salinity following leaching …
The Effects Of Different Row Spacings, Cutting Heights And Stubble Burning On Seed Yield And Yield Components Of Crested Wheatgrass (Agropyron Cristatum), Ahmet Gökkuş, Yunus Seri̇n, Ali̇ Koç, Mustafa Tan
The Effects Of Different Row Spacings, Cutting Heights And Stubble Burning On Seed Yield And Yield Components Of Crested Wheatgrass (Agropyron Cristatum), Ahmet Gökkuş, Yunus Seri̇n, Ali̇ Koç, Mustafa Tan
Turkish Journal of Agriculture and Forestry
This trial was conducted on the experimental fields of the Agricultural Faculty at Atatürk University in 1987-92 and five-year results were evaluated except for the first year. The effects of different row spacings (20, 30 and 40 cm), cutting stubble heights (2.5, 5.0 and 7.5 cm) and stubble burning on seed yield and yield components of crested wheatgrass (Agropyron cristatum) were studied. According to five-year averages, the effects of row spacings on the seed and straw yield, reproductive shoot number per m^2 and seed number and weight per spike were significant. The values for all parameters were increased by expanding …
Water-Use Efficiency (Wue) And Change In The Yield-Response Factor (Ky) Of Cotton Irrigated By An Irrigation Drip System, Ahmet Ertek, Riza Kanber
Water-Use Efficiency (Wue) And Change In The Yield-Response Factor (Ky) Of Cotton Irrigated By An Irrigation Drip System, Ahmet Ertek, Riza Kanber
Turkish Journal of Agriculture and Forestry
This study was conducted to investigate the effect of water-use efficiency and changes in the yield-response factor of cotton irrigated with an irrigation drip system. The amount of water applied was based on free surface evaporation from a screened Class-A Pan. Irrigation treatments consisted of two different irrigation intervals (I1: 5; I2: 10 days), three plant-pan coefficients (Kcp1: 0.75; Kcp2: 0.90, Kcp3: 1.05) and two different soil surface wetting percentages (P1: 0.70 and P2: based on cover percentage of the crop). The first irrigation was applied when the available soil water content in the 120 cm of the soil profile …
Some Mechanical Properties Of Alder [Alnus Glutinosa Subsp. Barbata (C. A. Mey.) Yalt.] Wood Obtained From Artvin Region, Bi̇lgi̇n Güller, Nurgül Ay
Some Mechanical Properties Of Alder [Alnus Glutinosa Subsp. Barbata (C. A. Mey.) Yalt.] Wood Obtained From Artvin Region, Bi̇lgi̇n Güller, Nurgül Ay
Turkish Journal of Agriculture and Forestry
In this study, some mechanical properties of Alder [Alnus glutinosa subsp. barbata (C. A. Mey.) Yalt.] wood were investigated. The experiments were carried out on test specimens obtained from 10 selected experimental trees taken from Artvin region. The selection of the experimental trees, preparation of the test specimens and application of the test procedures were carried out according to the relevant Turkish standards. Some mechanical properties of Alder wood such as compression strength parallel to grain, static bending strength, modulus of elasticity, impact strength (impact bending), tension strength parallel to grain, shear strength, cleavage strength and values of Brinell-hardness were …
Combinatorial Optimization In Forest Ecosystem Management Modeling, Emi̇n Zeki̇ Başkent
Combinatorial Optimization In Forest Ecosystem Management Modeling, Emi̇n Zeki̇ Başkent
Turkish Journal of Agriculture and Forestry
Modeling forest management activities has been tackled by scientists over the last two decades. Both simulation and optimization techniques have been used in solving forest management planning problems. With the introduction of ecosystems management that focuses on the sustainable production and maintenance of ecological, social and economical values, neither approach provided a credible solution technique to help design the complex structure of forest management activities. Alternative to these, is a group of meta-heuristic or combinatorial optimization techniques which have just gained the attention of forest modelers. In this paper, an attempt is made to introduce the concept of combinatorial optimization, …
A Study On Turkish Rhododendron L. (Ericaceae), Sali̇h Terzi̇oğlu, Nesi̇me Merev, Rahi̇m Anşi̇n
A Study On Turkish Rhododendron L. (Ericaceae), Sali̇h Terzi̇oğlu, Nesi̇me Merev, Rahi̇m Anşi̇n
Turkish Journal of Agriculture and Forestry
Some of the Turkish Rhododendron L. taxa need wood anatomical and palynological studies for their certain determination together with morphological studies. Therefore, some of them were studied and a revised list of them is given. New distribution areas of a newly recorded endemic variety of Rhododendron ponticum L. (Rhododendron ponticum L. subsp. ponticum var. heterophyllum Anşin) were determined: A7 Trabzon: Maçka, A8 Rize: Çamlıhemşin and A8 Artvin: Murgul, in addition to the already known A8 Trabzon: Of region. Morphological, wood anatomical and palynological features of very rare white-flowered specimens of Rhododendron ponticum L. were compared to the main taxa of …
Physical And Chemical Characteristics Of Taro [Colocasia Esculenta (L.) Schott] Corms And Processing To Chips And Puree, Mevlüt Şen, Atti̇la Akgül, Musa Özcan
Physical And Chemical Characteristics Of Taro [Colocasia Esculenta (L.) Schott] Corms And Processing To Chips And Puree, Mevlüt Şen, Atti̇la Akgül, Musa Özcan
Turkish Journal of Agriculture and Forestry
This study was carried out to establish some physical properties and proximate chemical compositions of taro corms collected from Anamur and Bozyazı in İçel province, Turkey. A total of two taro corms from different sources were evaluated for pH, dry matter, crude protein, crude cellulose unrefined oil, starch, invert sugar, total sugar, ash, Ca, Mg ve K. French fries produced from the corms were evaluated on composition and sensory properties. The samples collected from Anamur and Bozyazı differed in some parameters. Taro corms were rich in starch, magnesium and potassium. Sensory analysis of the products showed no difference between the …
Evaluation Of Stand Homogeneity And Stem Quality In Ash (Fraxinus Angustifolia, Wahl.) Stands, Fi̇kret Kapucu, Hakki Yavuz, Altay Uğur Gül
Evaluation Of Stand Homogeneity And Stem Quality In Ash (Fraxinus Angustifolia, Wahl.) Stands, Fi̇kret Kapucu, Hakki Yavuz, Altay Uğur Gül
Turkish Journal of Agriculture and Forestry
This study presents the results of a study conducted to determine stem quality and the homogeneity of stands of ash (Fraxinus angustifolia Wahl.) in natural and plantation stands in the central and western Black Sea Regions in Turkey. The results obtained from this study can be summarized as follows: (i) According to homogeneity index values, plantations are more homogeneous than natural ash stands, (ii) The homogeneity index values of natural ash stands and plantations are similar to the values of some even-aged stands given in the literature, (iii) There is a statistically significant difference between the stand value of plantations …
Effects Of Bleaching And Impregnation Processes On The Hardness Of The Varnish Layer In Beech Wood, Yalçin Örs, Musa Atar
Effects Of Bleaching And Impregnation Processes On The Hardness Of The Varnish Layer In Beech Wood, Yalçin Örs, Musa Atar
Turkish Journal of Agriculture and Forestry
This study was performed to determine the effects of bleaching and impregnation processes on the hardness of the varnish layer in beech wood. For this purpose, samples were impregnated with Tanalith-CBC and Immersol-WR 2000 and bleached with the solution groups (18%) NaOH+H_2O_2, NaOH+ Ca(OH)_2 +H_2O_2, NaOH+ MgSO_4+ H_2O_2, NaHSO_3+H_2C_2O_4.2H_2, NaSiO_3 +H_2O_2, KMnO_4 +NaHSO_3+H_2O_2. Synthetic varnishing was used and the hardness of the varnish layer was determined according to ASTM-D-4366. The mean hardness values (swing) of the control samples were found to be 35.57 for unimpregnated and varnished samples, 23.50 for samples treated with solution groups and varnished samples, 45.78 for …
The Effect Of Salicyclic Acid And Endomycorrhizal Fungus Glomus Etunicatumon Plant Development Of Tomatoes And Fusarium Wilt Caused By Fusarium Oxysporum F.Sp Lycopersici, Hülya Özgönen, Mehmet Bi̇çi̇ci̇, Ali̇ Erkiliç
The Effect Of Salicyclic Acid And Endomycorrhizal Fungus Glomus Etunicatumon Plant Development Of Tomatoes And Fusarium Wilt Caused By Fusarium Oxysporum F.Sp Lycopersici, Hülya Özgönen, Mehmet Bi̇çi̇ci̇, Ali̇ Erkiliç
Turkish Journal of Agriculture and Forestry
The effect of salicylic acid (SA)and Glomus etunicatum (GE)on plant development of tomatoes and infection potential of wilt disease Fusarium oxysporum f.sp lycopersici (Fol)were studied. The effects of different SA concentrations on mycelial development of Fol were tested in vitro and two concentrations of SA and GE were included in pot experiment. SA completely inhibited the mycelial development of Fol in vitro at concentrations from 0.6 mM to 1.0 mM and ED50 value was found as 0.51 mM. GE could increase dry weight of plant,length of shoot and root growth irrespective whether Fol infected the tomato plants. The root colonization …
Screening Of Wheat Varieties For Resistance To Head Scab Caused By Fusarium Graminearum Schwabe, Si̇bel Dervi̇ş
Screening Of Wheat Varieties For Resistance To Head Scab Caused By Fusarium Graminearum Schwabe, Si̇bel Dervi̇ş
Turkish Journal of Agriculture and Forestry
In this study, variability in pathogenicity among Fusarium graminearum isolates from different locations in Ohio was determined. The most virulent isolates from these locations were chosen and used in segregation studies to evaluate the resistance of some resistant by resistant winter wheat crosses to Fusarium head scab. Differences in pathogenicity levels were significant among isolates even from the same location. Several generalizations can be made about the segregating generations in this study. The results indicated that Ning 7840 carries multiple genes for resistance. In addition, we found that Freedom and Ning 7840 have at least one resistance gene different. Although …
Heterologous Expression Of Genes In The Yeast Saccharomyces Cerevisiae, Numan Özcan
Heterologous Expression Of Genes In The Yeast Saccharomyces Cerevisiae, Numan Özcan
Turkish Journal of Agriculture and Forestry
Both an \alpha-amylase gene of Bacillus subtilis RSKK246 and a gene encoding \beta-glucanase from B.subtilis RSKK243 were cloned and expressed in both E.coli XL1-Blue MRF and B.subtilis YB886 by using the vectors pUC18 and pUB110 respectively. These genes were also cloned into the E.coli-yeast shuttle vectors pRS406 and pRS416 for transfer into the yeast Saccharomyces cerevisiae.These constructs carrying \alpha -amylase and \alpha -glucanase,genes which were cloned into the pRS406 vector,were expressed by integration into the yeast chromosome.These genes were also expressed in the yeast by autonomous replication of the ARS/CEN plasmid pRS416.This work demonstrates that genes belonging to B.subtilis can …
An Investigation Of Winter Harvesting On Steep Terrain In Forestry, Hafiz Hulusi̇ Acar, Bi̇lal Di̇nç
An Investigation Of Winter Harvesting On Steep Terrain In Forestry, Hafiz Hulusi̇ Acar, Bi̇lal Di̇nç
Turkish Journal of Agriculture and Forestry
Forest productions are very difficult, expensive and time consuming. In the Black Sea Region, forests cover generally high and steep slopes of mountainous areas. Therefore, the problems of forestry production studies are gaining in importance. In forestry production studies, the absence of mechanization level and its application causes qualitative and quantitative losses. In this study, the time required for felling and skidding operations in winter were determined and factors affecting logging were observed and recorded. The data obtained were later analyzed. According to this study, productivity at winter harvesting for felling operations is 1,948 m^3/h, for skidding with human power …
Isolation And Characterization Of Sequences Homologous To The Tobacco Clone Axi 1 (Auxin Independent) From A Vicia Sativa Nodule Cdna Library, Yeşi̇m Yalçin Mendi̇, Seli̇m Çeti̇ner, Ton Bisseling
Isolation And Characterization Of Sequences Homologous To The Tobacco Clone Axi 1 (Auxin Independent) From A Vicia Sativa Nodule Cdna Library, Yeşi̇m Yalçin Mendi̇, Seli̇m Çeti̇ner, Ton Bisseling
Turkish Journal of Agriculture and Forestry
In this research, partial nucleotide sequences of the axi 1 gene, which is related to auxin perception and transduction, isolated from Vicia sativa using cDNA library screening were investigated. Four V. sativa cDNA clones representing homologous of the tobacco axi 1 (auxin independent) cDNA clone were isolated and characterized. With sequence analysis two different clones were observed, called 10/3a and 16/3b. Sequences about 500 bp from the 5' end and 450 bp from the 3' end were determined from the 10/3a clone. The sequences from the 5' end of cDNA clone 10/3a shared about 58 % similarity at the nucleotide …
In Situ Localisation Of Axi 1 (Auxin Independent) Gene In Rhizobium Leguminosarum Inoculated Root Tips Of Pea Plants, Yeşi̇m Yalçin Mendi̇, Katharina Pawlowski, Seli̇m Çeti̇ner
In Situ Localisation Of Axi 1 (Auxin Independent) Gene In Rhizobium Leguminosarum Inoculated Root Tips Of Pea Plants, Yeşi̇m Yalçin Mendi̇, Katharina Pawlowski, Seli̇m Çeti̇ner
Turkish Journal of Agriculture and Forestry
Axi 1 is the only characterized auxin independent gene in tobacco plants. In this study, the effect of axi 1 gene on cortical cell division during different stages of nitrogen fixation and on the role of polar auxin transport were investigated. Root and nodule samples were taken from pea seedlings 24 hours, 48 hours, 6 days and 10 days after inoculation with R. leguminosarum PRE strain. Using in situ hybridisation, the location of the axi 1 gene expression in root and nodule tissues was identified. The results showed that in root tissues inoculated with Rhizobia, the axi 1 gene is …
Withdrawal Strength Of Dowels In Plywood And Oriented Strand Board, Yusuf Zi̇ya Erdi̇l, Carl A. Eckelman
Withdrawal Strength Of Dowels In Plywood And Oriented Strand Board, Yusuf Zi̇ya Erdi̇l, Carl A. Eckelman
Turkish Journal of Agriculture and Forestry
Plywood and oriented strand board (OSB) are being used increasingly in the construction of upholstered furniture frames. Yet there is little information available concerning the holding strength of various fasteners, and, in particular, dowels in these materials. A study was conducted accordingly, to obtain basic information about the holding strength of dowels in both plywood and oriented strand board. Results of the tests were incorporated into predictive expressions that allow designers to estimate withdrawal strength as a function of the diameter of the dowels, their depth of embedment and the density of the composite material. Given the variability of the …
A Study On Selecting Suitable Types Of The Anatolia Sage (Salvia Fruticosa Mill.) In The Flora Of Western Anatolia, Emi̇ne Bayram
A Study On Selecting Suitable Types Of The Anatolia Sage (Salvia Fruticosa Mill.) In The Flora Of Western Anatolia, Emi̇ne Bayram
Turkish Journal of Agriculture and Forestry
In this study, Salvia fruticosa Mill. seeds were collected from different locations in west and south-west Anatolia, Turkey, to establish a population. This population was grown under the Bornova ecological conditions for determination of agronomical and technological traits in order to develop a standard variety by selecting the types with better quality and yield using the clonal selection method. The population included the seeds collected from seventeen different locations in the provinces of Muğla, Antalya, İzmir, Aydın, Tekirdağ, Çanakkale and Balıkesir. Plant height, the yields of fresh herbage, drug herbage, drug leaf and essential oil content for each population in …
Evaluation Of Yield And Yield Components In Inbred Maize Lines I. Heterosis And Line X Tester Analysis Of Combining Ability, Şevket Meti̇n Kara
Evaluation Of Yield And Yield Components In Inbred Maize Lines I. Heterosis And Line X Tester Analysis Of Combining Ability, Şevket Meti̇n Kara
Turkish Journal of Agriculture and Forestry
In maize, three male testers and six female lines together with their 18 F_1 hybrids were evaluated to study the general and specific combining ability estimates and heterosis following line x tester approach. Analysis of variance indicated the existence of significant variation among F_1 and parents for all characteristics. Average heterosis was significant for all characteristics studied and was positive, except for days to tasseling, with the average yield of hybrids being 79.8% above that of the parents. In view of the general combining ability effects of the parents, the parental lines YUZ P709 and FR 64A were identified as …
Xylotroph Micromycetes Of Oak Trees In Azerbaijan Forests, Elşad Hüseyi̇n
Xylotroph Micromycetes Of Oak Trees In Azerbaijan Forests, Elşad Hüseyi̇n
Turkish Journal of Agriculture and Forestry
It is of great importance to study the activities of fungi in forest ecosystems for both protecting them and optimizing their functions. In this study, we present 130 species of xylotroph micromycetes found on six different species of oak in Azerbaijan. Of the species found, 54 were from 38 genera from 10 families of the Ascomycotina subdivision. Thirty-four were of the Pyrenomycetes class in which many have stromas or their peritheciums formed in dense groups. The majority of these species were found on wood in the initial phase of decomposition. The Loculoascomycetes and Discomycetes class were represented by 18 and …
Decomposition Rate Comparisons Between Frequently Burned And Unburned Areas Of Uneven-Aged Loblolly Pine Stands In Southeastern Arkansas, Michele Renschin, Hal O. Leichty, Michael G. Shelton
Decomposition Rate Comparisons Between Frequently Burned And Unburned Areas Of Uneven-Aged Loblolly Pine Stands In Southeastern Arkansas, Michele Renschin, Hal O. Leichty, Michael G. Shelton
Journal of the Arkansas Academy of Science
Although fire has been used extensively over long periods of time in loblolly pine (Pinus taeda L.) ecosystems, little is known concerning the effects of frequent fire use on nutrient cycling and decomposition. To better understand the long-term effects of fire on these processes, foliar litter decomposition rates were quantified in a study investigating prescribed fire and uneven-aged loblollypine management in the Upper Coastal Plain in Arkansas. Part of the study area had been burned on a 2- to 3-year cycle since 1981, whereas another portion had not received any prescribed fires. Decomposition rates were determined by placing foliar litter …
The Yield And Yield Components Of Some Narbonne Vetch (Vicia Narbonensis L.) Lines In Tokat Ecological Conditions, Uğur Büyükburç, Selahatti̇n İptaş
The Yield And Yield Components Of Some Narbonne Vetch (Vicia Narbonensis L.) Lines In Tokat Ecological Conditions, Uğur Büyükburç, Selahatti̇n İptaş
Turkish Journal of Agriculture and Forestry
This study was conducted under Tokat ecological conditions during 1993/94, 1994/95 and 1995/96. Fifteen narbonne vetch (Vicia narbonensis L.) lines obtained from ICARDA were used. The results of variance analyses showed that there were statistically significant differences among lines for some characters. The highest seed yield (217.2 kg/da) was produced by the line 2466 and the lowest (144.9 kg/da) by the line 2380. 1000-seed weight ranged between 158.7 and 301.2 g, whereas biological yield ranged between 547.4 and 848.1 kg/da. At the end of this study, it was found that the lines 2466 and 2461 had good performance while the …
Water Diffusion Coefficients Of Selected Legumes Grown In Turkey As Affected By Temperature And Variety, Ferda Seyhan Gürtaş, M. Mehmet Ak, E. Özgül Evranuz
Water Diffusion Coefficients Of Selected Legumes Grown In Turkey As Affected By Temperature And Variety, Ferda Seyhan Gürtaş, M. Mehmet Ak, E. Özgül Evranuz
Turkish Journal of Agriculture and Forestry
The kinetics of water absorption by chickpeas (Koçbaşı, Kuşbaşı), lentils (green Pul) and beans (Battal, Dermason, Horoz, Şeker) grown in Turkey were studied by a gravimetric method during soaking at 15, 25 and 40ºC to determine moisture diffusivity of these selected legumes. The water diffusion coefficients of the legumes were in the range 9.71x10^{-11} - 5.98x10^{-10} m^2/s for the chickpeas, 3.53x10^{-10} - 1.33x10^{-9} m^2/s for the lentils and 4.35x10^{-11} - 3.79x10^{-9} m^2/s for the beans. An Arrhenius-type equation described the strong temperature effect on the diffusion coefficient with activation energies of 48.6-49.8 kJ/g-mol for chickpeas, 39.7 kJ/g-mol for lentils, and …
Determining Irrigation Possibilities And Agricultural Problems In The Wheat Growing Areas Of Ankara, Konya And Eskişehir Provinces, Zeynep Dernek
Determining Irrigation Possibilities And Agricultural Problems In The Wheat Growing Areas Of Ankara, Konya And Eskişehir Provinces, Zeynep Dernek
Turkish Journal of Agriculture and Forestry
This study was conducted to determine the agricultural technical conditions and irrigation systems for obtaining high yields in wheat production. A questionnaire was prepared and applied to farmers growing wheat in Ankara, Konya and Eskişehir in 1996. After analyzing the data, we determined the water resources, the amount of water used for wheat production, the allocation of crops, and the technical and financial problems faced by farmers in the research area. The findings of the study showed that 74% of irrigation water is high quality, and ground water and surface water are used in almost equal amounts. Depending on the …
Certification And Labeling Of Forest Products: Will It Lead To More Environmentally Benign Forestry In Maine?, Mario F. Teisl, Stephanie Peavey, Kelly O’Brien
Certification And Labeling Of Forest Products: Will It Lead To More Environmentally Benign Forestry In Maine?, Mario F. Teisl, Stephanie Peavey, Kelly O’Brien
Maine Policy Review
From a supply and demand point of view, the trend toward forest-products certification appears simple: some retail consumers may prefer to buy products from forests managed in an environmentally sound way while some forest owners may be willing to alter their management practices in order to sell to these consumers. However, as the authors indicate, the issue of communicating to consumers the degree of “environmental good” being purchased can be complicated and may be a factor affecting the long-term success of certification programs. The authors present the results of a recent survey that assessed the use of two types of …
Variation In Growth Of 20-Year-Old Provenance Trial Of Sitka Spruce (Picea Sitchensis(Bong.)Carr.) In Great Britain, İlker Usta
Turkish Journal of Agriculture and Forestry
Variation in growth of the cambial age (tree diameter) and tree volume was investigated in eight seed origins of Sitka spruce Picea sitchensis (Bong.) Carr.) grown at two sites in Great Britain. The trial seed origins were collected from 58 ºN to 41 ºN latitude, 134 ºW to 123 ºW longitude, and 0 m to 140 m altitude in the natural range of Sitka spruce that extends in a narrow coastal strip from Alaska to California (Alaska -AL,British Columbia -BC, Queen Charlotte Islands -QCI, North Washington -NW, South Washington -SW,North Oregon -NO,South Oregon -SO,California -CA). The experimental plantations were raised …
Response Of Popcorn (Zea Mays Everta) To Nitrogen Rates And Plant Densities, Sabri̇ Gökmen, Özer Sencar, Mehmet Ali̇ Saki̇n
Response Of Popcorn (Zea Mays Everta) To Nitrogen Rates And Plant Densities, Sabri̇ Gökmen, Özer Sencar, Mehmet Ali̇ Saki̇n
Turkish Journal of Agriculture and Forestry
The objective of this study was to evaluate grain yield and yield components of popcorn with different nitrogen rates and plant densities. Field studies were conducted in 1995 and 1996 at Kazova Plain in Tokat. The experiment was designed in a randomized-complete-block design with a split-plot arrangement with three replications. The treatments comprised six levels of nitrogen (0, 50, 100, 150, 200 and 250 kg N /ha) and four plant densities (5.7, 7.0, 9.5 and 14.0 plants /m^2). Nitrogen rates were in the main plots, and planting densities were in the sub-plots. An open pollinated was used as the material …