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

Forest Sciences Commons™

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

2006

Discipline
Institution
Keyword
Publication
Publication Type

Articles 151 - 180 of 193

Full-Text Articles in Forest Sciences

Use Of A Crop Water Stress Index For Scheduling The Irrigation Of Sunflower (Helianthus Annuus L.), Tolga Erdem, Yeşi̇m Erdem, A. Hali̇m Orta, Hakan Okursoy Jan 2006

Use Of A Crop Water Stress Index For Scheduling The Irrigation Of Sunflower (Helianthus Annuus L.), Tolga Erdem, Yeşi̇m Erdem, A. Hali̇m Orta, Hakan Okursoy

Turkish Journal of Agriculture and Forestry

This study was designed to evaluate different threshold crop water stress index (CWSI) values to schedule irrigation for sunflower (Helianthus annuus L.) grown under furrow irrigation. Irrigations were started when CWSI values reached 0.2, 0.4, 0.6, 0.8 and 1.0 (non-irrigation). The CWSI values were computed from measurements of canopy temperature, air temperature and atmospheric vapor pressure deficit. Total irrigation water amounts of 679, 584, 470 and 227 mm were applied to the T_{0.2}, T_{0.4}, T_{0.6} and T_{0.8} treatments, respectively. The maximum seasonal evapotranspiration (ET), 809 mm was measured from the T_{0.2} treatment. Irrigation levels significantly affected seed yield. Although the …

Go to article

Genotypic Variation In Tolerance To Boron Toxicity In 70 Durum Wheat Genotypes, Ayfer A. Torun, Ati̇lla Yazici, Hali̇l Erdem, İsmai̇l Çakmak Jan 2006

Genotypic Variation In Tolerance To Boron Toxicity In 70 Durum Wheat Genotypes, Ayfer A. Torun, Ati̇lla Yazici, Hali̇l Erdem, İsmai̇l Çakmak

Turkish Journal of Agriculture and Forestry

By using 70 durum wheat (Triticum durum) genotypes, a greenhouse experiment has been carried out to study genotypic variation in tolerance to boron (B) toxicity in soil. Plants were grown in a soil containing 12 mg extractable B kg^{-1} soil and treated additionally with (+B: 25 mg kg^{-1} soil) and without B (-B: 0 mg B kg^{-1} soil). Following 30 days of growth, only shoots have been harvested and analyzed for dry matter production and shoot concentrations of B. There was a large genotypic variation in tolerance to B toxicity based on the severity of leaf symptoms and decreases in …

Go to article

Developing Alternative Wood Harvesting Strategies With Linear Programming In Preparing Forest Management Plans, Emi̇n Zeki̇ Başkent, Sedat Keleş Jan 2006

Developing Alternative Wood Harvesting Strategies With Linear Programming In Preparing Forest Management Plans, Emi̇n Zeki̇ Başkent, Sedat Keleş

Turkish Journal of Agriculture and Forestry

In this paper, the process of developing alternative wood harvesting strategies in forest management planning is presented. Alternative wood harvesting strategies based on linear programming (LP) include a planning horizon of 100 years, an objective of the maximization of net present value (NPV) and various constraints such as classical volume control (even flow) and wood assortments. Model outputs are presented and discussed along with NPVs and amounts of wood assortments by alternative wood harvesting strategies consisting of various discount rates and wood assortments.

Go to article

Comparing The Performances Of Real-Time Kinematic Gps And A Handheld Gps Receiver Under Forest Cover, Hayati̇ Zengi̇n, Ahmet Yeşi̇l Jan 2006

Comparing The Performances Of Real-Time Kinematic Gps And A Handheld Gps Receiver Under Forest Cover, Hayati̇ Zengi̇n, Ahmet Yeşi̇l

Turkish Journal of Agriculture and Forestry

In forestry, to facilitate re-finding, especially permanent sample plots or some sample points in forest inventory for control, precise position information is needed. Various techniques are used to increase the performance of basic GPS (Global Positioning System) measurements and to achieve more accurate positioning. These techniques are based on the principles of relative positioning, for which 2 or more receivers are used generally. For a forest inventory, the corrected coordinates should be provided in the field and at the moment of measurement. Therefore, real-time measurements are required. The cost of GPS receivers used for sensitive measurements through relative positioning techniques …

Go to article

The Effect Of Tying And Wrapping Materials And Their Color On Budding Success In Kiwifruit, Hamdi̇ Zengi̇nbal, Hüseyi̇n Çeli̇k, Muharrem Özcan Jan 2006

The Effect Of Tying And Wrapping Materials And Their Color On Budding Success In Kiwifruit, Hamdi̇ Zengi̇nbal, Hüseyi̇n Çeli̇k, Muharrem Özcan

Turkish Journal of Agriculture and Forestry

We studied the effect of tying and wrapping materials and their color on budding success in kiwifruit. The work was done in the open field during 2002-2003. Three-year-old, gallon container grown Hayward seedlings were chip-budded with Hayward chip-bud sticks in the first quarter of May. Raffia (black), cannabis fiber, leathery polyethylene band (white), soft rubbery polyethylene tape (white), paper tape, cotton yarn and plastic string (white) were used as tying and wrapping material in the first experiment. Green, red, black and white raffia was used as wrapping material in the second experiment. In the first trial, the soft rubbery plastic …

Go to article

Detection Of Four Apple Viruses By Elisa And Rt-Pcr Assays In Turkey, Kadri̇ye Çağlayan, Çi̇ğdem Ulubaş Serçe, Mona Gazel, Wilhelm Jelkmann Jan 2006

Detection Of Four Apple Viruses By Elisa And Rt-Pcr Assays In Turkey, Kadri̇ye Çağlayan, Çi̇ğdem Ulubaş Serçe, Mona Gazel, Wilhelm Jelkmann

Turkish Journal of Agriculture and Forestry

Plant samples were collected from the main apple growing provinces of Turkey in order to evaluate the incidence of 4 important apple virus diseases during spring 2004. Collected leaves and shoots were tested using enzyme linked immunosorbent assay (ELISA) and reverse transcription polymerase chain reaction (RT-PCR) for Apple mosaic virus (ApMV), Apple stem grooving virus (ASGV) and Apple chlorotic leaf spot virus (ACLSV). Since no commercial antiserum is available, Apple stem pitting virus (ASPV) was tested only using RT-PCR and the results were compared. A total of 174 apple samples were collected from varietal collections belonging to governmental and university …

Go to article

Statistical Modeling Of The Effect Of Physio-Biochemical Parameters On Water Use Efficiency Of Grape Varieties, Rootstocks And Their Stionic Combinations Under Moisture Stress Conditions, Jogaiah Satisha, G. S. Prakash, R. Venugopalan Jan 2006

Statistical Modeling Of The Effect Of Physio-Biochemical Parameters On Water Use Efficiency Of Grape Varieties, Rootstocks And Their Stionic Combinations Under Moisture Stress Conditions, Jogaiah Satisha, G. S. Prakash, R. Venugopalan

Turkish Journal of Agriculture and Forestry

The effect of various physio-biochemical parameters on the water use efficiency (WUE) of grape varieties, rootstocks and budded vines was studied in 3 separate experiments at 3 levels of irrigation (100%, 50% and no irrigation) for 14 days of stress cycle. None of the varieties or rootstocks could survive beyond 4 days under the no irrigation treatment. Considerable genetic variability was observed for WUE with respect to photosynthetic rate, transpiration rate, stomatal conductance, root to shoot length ratio, abscisic acid, zeatin riboside, carbon isotope discrimination etc. among grape rootstocks, viz., Dogridge, 1613 C, Salt Creek, St. George and Vitis champinii …

Go to article

Timber Talk, Vol. 44, No. 1, February 1, 2006 Jan 2006

Timber Talk, Vol. 44, No. 1, February 1, 2006

Timber Talk: Nebraska Forest Industry Newsletter

Lumber Market News ; Hardwood Lumber Price Trends ; Hardwood Lumber Market History ; What Do You Think About Certifi ed Forest Products? ; Top Ten Environmental Benefits of Forestry ; Tree Trivia ; Nebraska Forestry Industry Spotlight ; Coming Events ; The Trading Post; Measuring Distance ; Timber Sales

Go to article

Smokey Says ... Campers Need Fire Prevention Too!, Bob Vogltance, Larry Wiles Jan 2006

Smokey Says ... Campers Need Fire Prevention Too!, Bob Vogltance, Larry Wiles

Nebraska Forest Service: Publications

Camp Site; Campfires; Camp Cooking; RV Camping; If You Smell Gas In Your RV; In Case Of Fire

Go to article

Community Forestry Resource Handbook: A Guide For Establishing And Maintaining Healthy Community Forests Across Nebraska, Matthew C. Hansen Jan 2006

Community Forestry Resource Handbook: A Guide For Establishing And Maintaining Healthy Community Forests Across Nebraska, Matthew C. Hansen

Nebraska Forest Service: Publications

The Nebraska Forest Service (NFS) has served the communities of Nebraska since the beginnings of the Federal Urban and Community Forestry program in 1976. Since that time, the NFS has worked actively with well over half of the state’s 534 cities and villages. In addition, NFS foresters have done public tree inventories, resource assessments and management plans for 175 of those communities. The NFS endeavors to provide the best and most recent technical forestry and arboricultural information to help communities manage their tree resources. Community tree resources are assets that need to be managed and cared for just as any …

Go to article

Conducting A Prescribed Burn On Warm-Season Grass Crp Sites, Bruce E. Anderson, James L. Stubbendieck Jan 2006

Conducting A Prescribed Burn On Warm-Season Grass Crp Sites, Bruce E. Anderson, James L. Stubbendieck

Nebraska Forest Service: Publications

Prescribed burns on Conservation Reserve Program (CRP) sites composed of warm-season grasses require special safety precautions. The extremely high fuel loads of dry, highly volatile grass make safety preparation and weather conditions vel)' important. Winds can quickly move headfires and create high flame lengths and intense heat.

Go to article

The Four Corners Fire: A Fuels Reduction Success Story Jan 2006

The Four Corners Fire: A Fuels Reduction Success Story

Nebraska Forest Service: Publications

In 1903, tree planting began on the Dismal River Forest Reserve in an effort to avoid what, at the time, appeared to be very real prospects of a future timber shortage. One hundred years later, the Forest Reserve is the Nebraska National Forest, and ideas of a national timber shortage have been replaced by a compelling need to thin forests to prevent large, catastrophic fires.

Go to article

Wildlife And Invertebrate Response To Fuel Reduction Treatments In Dry Coniferous Forests Of The Western United States: A Synthesis, David S. Pilliod, Evelyn L. Bull, Jane L. Hayes, Barbara C. Wales Jan 2006

Wildlife And Invertebrate Response To Fuel Reduction Treatments In Dry Coniferous Forests Of The Western United States: A Synthesis, David S. Pilliod, Evelyn L. Bull, Jane L. Hayes, Barbara C. Wales

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

This document is part of the Fuels Planning: Science Synthesis and Integration Project, a pilot project initiated by the USDA Forest Service to respond to the need for tools and information useful for planning site-specific fuel (vegetation) treatment projects. The information addresses fuel and forest conditions of the dry inland forests of the Western United States: those dominated by ponderosa pine, Douglas-fir, dry grand fir/white fir, and dry lodgepole pine potential vegetation types. Information was developed primarily for application at the stand level and is intended to be useful within this forest type regardless of ownership. Portions of the information …

Go to article

Biology And Biological Control Of Leafy Surface, Rob Bourchier, Rich Hansen, Rodney Lym, Andrew Norton, Denise Olsen, Carol Bell Randall, Mark Schwarzlander, Luke Skinner Jan 2006

Biology And Biological Control Of Leafy Surface, Rob Bourchier, Rich Hansen, Rodney Lym, Andrew Norton, Denise Olsen, Carol Bell Randall, Mark Schwarzlander, Luke Skinner

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Leafy spurge (Euphorbia esula L.) is an exotic, deep-rooted, perennial weed native to Europe and Asia. It was first reported in the United States in Newbury, Massachusetts, in 1827, where it likely established from contaminated soil left from ship ballasts. This invasive weed quickly spread westward across North America, accelerated by multiple reintroductions from contaminated crop seed including oat (Avena fatua L.), smooth brome (Bromus inermis Leyss.) and alfalfa (Medicago sativa L.) brought by European settlers. Leafy spurge is now abundant on the northern Great Plains of the United States and the prairie provinces of Canada, …

Go to article

Comparative Characterization Of The Effects Of The Climate–Tree–Growth Relationship In Anatolian Black Pine (Pinus Nigra Arnold Subsp. Pallasiana (Lamb.) Holmboe) On Wood Treatability, İlker Usta Jan 2006

Comparative Characterization Of The Effects Of The Climate–Tree–Growth Relationship In Anatolian Black Pine (Pinus Nigra Arnold Subsp. Pallasiana (Lamb.) Holmboe) On Wood Treatability, İlker Usta

Turkish Journal of Agriculture and Forestry

The effects of the climate-tree-growth relationship on treatability were investigated in the Anatolian black pine (Pinus nigra Arnold subsp. pallasiana (Lamb.) Holmboe) based on the altitudinal locations at approximately 960 m (B1) and 1010 m (B2) in the former coniferous afforestation area in Beytepe, Ankara, Turkey. This was achieved by analysis of the 1º branches at 1, 2, and 3 m tree heights above ground level for the periods 82/98 (March 1982 to February 1998) and 98/04 (March 1998 to February 2004). It appeared that the climatic changes during the period 98/04 had a greater effect on the growth of …

Go to article

Five Years Of Change In An Old-Growth Pine-Hardwood Remnant In Ashley County, Arkansas, Don C. Bragg Jan 2006

Five Years Of Change In An Old-Growth Pine-Hardwood Remnant In Ashley County, Arkansas, Don C. Bragg

Journal of the Arkansas Academy of Science

The Levi Wilcoxon Demonstration Forest near Hamburg, Arkansas is an industrially-owned remnant of old-growth pine and hardwoods. Some of the loblolly (Pinus taeda L.)and shortleaf (Pinus echinata Mill.)pine in this stand are over 200 years old, and numerous individuals exceed 90 cm in diameter and 30 m in height. A2000 survey of a portion of this tract found that 27 tree species contributed an average of387.5 live stems/ha and 31.8 m2 /ha of basal area. An inventory of the same plots in2006 yielded noticeable declines in density (now down to 342.5 stems/ha) and basal area (now 28.2 m2 /ha). Much …

Go to article

Soil Community Structure And Litter Decomposition Under Irrigated Eucalyptus Globulus In South Western Australia, Derek J. Swarts Jan 2006

Soil Community Structure And Litter Decomposition Under Irrigated Eucalyptus Globulus In South Western Australia, Derek J. Swarts

Theses: Doctorates and Masters

Plantations provide a range of benefits, including the potential to ameliorate salinity and soil erosion, enhance biodiversity, and provide timber and wood chips. They are increasingly important because of their role in carbon sequestration (Adolphson, 2000; Anonymous, 2005; Jones et al. , 2005; Kozlowski, 2002; Paul and Polglase, 2004). Recent research has highlighted the connection between plantation health and soil fertility (Johnston and Crossley Jr, 2002). Within an Australian context there is little published data on the composition of the soil and litter fauna and their contribution to litter decomposition under plantation systems (Adolphson, 2000). The Albany Effluent Irrigated Tree …

Go to article

A Comparison Of Logging And Fire Disturbance On Biophysical Attributes Of The Northern Jarrah Forest, Alexander W. Watson Jan 2006

A Comparison Of Logging And Fire Disturbance On Biophysical Attributes Of The Northern Jarrah Forest, Alexander W. Watson

Theses: Doctorates and Masters

Ecologically sustainable forest management (ESFM) serves dual purposes: 1) to ensure the conservation of biodiversity, and 2) in production forest (forest managed for the production of timber and woodchips), to maintain an economically viable timber industry in perpetuity. A central axiom of ESFM is that any manipulation of a forest ecosystem should emulate the `natural' disturbance patterns of the forest. This is based on the assumption that forest communities have evolved with endogenous disturbance regimes and will be better able to cope if exogenous disturbance (e.g., logging) remains within natural levels and spatial and temporal bounds of intensity. The objective …

Go to article

Comparison Of Different Irrigation Methods Based On The Parametric Evaluation Approach, Orhan Dengi̇z Jan 2006

Comparison Of Different Irrigation Methods Based On The Parametric Evaluation Approach, Orhan Dengi̇z

Turkish Journal of Agriculture and Forestry

The main objective of this research is to compare two different irrigation methods according to parametric evaluation system in the Field Plants Central Research Institute-Ikizce Research Farm's soils located in southern Ankara. Soil properties of the study area including texture, depth, EC, drainage, carbonate content and slope were derived from a detailed soil map scaled 1/5000. After analyzing and evaluating soil properties using geographic information system techniques, gravity and drop irrigation suitability maps were generated. Results showed that 13.1% of the study area was highly suitable for surface and gravity irrigation methods, whereas 51.2% of the study area was highly …

Go to article

Effects Of Inoculation With Rhizobium On Seed Yield And Yield Components Of Common Vetch (Vicia Sativa L.), Sebahatti̇n Albayrak, Cafer Sirri Sevi̇may, Özgür Töngel Jan 2006

Effects Of Inoculation With Rhizobium On Seed Yield And Yield Components Of Common Vetch (Vicia Sativa L.), Sebahatti̇n Albayrak, Cafer Sirri Sevi̇may, Özgür Töngel

Turkish Journal of Agriculture and Forestry

The effects of inoculation with Rhizobium leguminosarum on seed yield and yield components of common vetch (Vicia sativa L.) were evaluated under Black Sea Coastal Region conditions, Turkey, in the 2001-2002 and 2002-2003 growing seasons using common vetch cultivars Kubilay, Ürem, Karaelçi, Uludağ, Emir, Çubuk and Nilüfer. The experiment was established as a split block design with 3 replications. Inoculation increased seed yield and all yield components of common vetch cultivars. It was observed that inoculated common vetch cultivars gave higher biological yield (8.5%), seed yield (7.6%), straw yield (10.4%), pod length (25.5%), number of seed per pod (16.2%), number …

Go to article

Study On Vertical And Lateral Leaching Of Nitrate From A Wheat Field In China, Md. Toufiq Iqbal Jan 2006

Study On Vertical And Lateral Leaching Of Nitrate From A Wheat Field In China, Md. Toufiq Iqbal

Turkish Journal of Agriculture and Forestry

Vertical and lateral leaching of nitrate from a wheat field was studied through one season in a field in China by applying increasing amount of N fertilizers (e.g. 90, 180, 270 and 360 kg ha^{-1}). Results showed that nitrate leaching was the dominating way of nitrate loss from wheat land during the first two month after sowing seeds. After irrigation, the nitrate concentration in the leachate of 30 cm soil layer was higher than that of 60 cm, while the concentration of nitrate leaching at the five N treatments through the two depth soil layer came into the same level …

Go to article

Use Of Corine Methodology To Assess Soil Erosion Risk In The Semi-Arid Area Of Beypazari, Ankara, İlhami̇ Bayrami̇n, Günay Erpul, Hakki Emrah Erdoğan Jan 2006

Use Of Corine Methodology To Assess Soil Erosion Risk In The Semi-Arid Area Of Beypazari, Ankara, İlhami̇ Bayrami̇n, Günay Erpul, Hakki Emrah Erdoğan

Turkish Journal of Agriculture and Forestry

Soil erosion is one of the major threats to the conservation of soil and water resources in the semi-arid and arid regions of Turkey. Therefore, there is a need to accurately assess soil erosion and accordingly determine the specific control activities adaptable to these conditions. Using the daily rainfall amounts recorded from 1958 to 2003 from 11 climate stations by the Turkish Meteorological Service in the semi-arid area of Beypazari, Ankara, Turkey, 5 different procedures of calculating the Modified Fournier Index (MFI) were performed to obtain the effect of rainfall variability and incidence of extreme storms on assessing 'Actual Soil …

Go to article

Somatic Embryogenesis From Immature Cotyledons Of Apomictic And Non-Apomictic Seeds In Walnut (Juglans Regia L.), Beki̇r Şan, Hati̇ce Dumanoğlu Jan 2006

Somatic Embryogenesis From Immature Cotyledons Of Apomictic And Non-Apomictic Seeds In Walnut (Juglans Regia L.), Beki̇r Şan, Hati̇ce Dumanoğlu

Turkish Journal of Agriculture and Forestry

Somatic embryogenesis from immature cotyledons of apomictic and open-pollinated seeds in some walnut (Juglans regia L.) genotypes was investigated. To obtain apomictic seeds, female flowers were bagged and/or pollinated with pollen of the apple cv. 'Golden Delicious' (Malus x domestica Borkh.). The best cotyledon stage for somatic embryogenesis was determined in open-pollinated seeds of 10 walnut genotypes. Immature cotyledons were cultured 8, 9, 10, 11 and 12 weeks after anthesis. As a result of this experiment, cotyledons of seeds thought to be of apomictic origin were cultured 8 weeks after anthesis. Driver and Kuniyuki walnut (DKW) medium supplemented with 1 …

Go to article

Effects Of Different Nitrogen Doses And Row Spacing Applications On Yield And Quality Of Oenothera Biennis L. Grown In Irrigated Lowland And Unirrigated Dryland Conditions, Nazim Şekeroğlu, Menşure Özgüven Jan 2006

Effects Of Different Nitrogen Doses And Row Spacing Applications On Yield And Quality Of Oenothera Biennis L. Grown In Irrigated Lowland And Unirrigated Dryland Conditions, Nazim Şekeroğlu, Menşure Özgüven

Turkish Journal of Agriculture and Forestry

Common evening primrose (Oenothera biennis L., Onagraceae) is a biennial herbaceous forb. It is commercially cultivated in over 15 countries for its seed oil, which contains the essential fatty acids, linoleic and gamma-linolenic acid. The present study was carried out to determine the effects of different nitrogen doses (0, 60, 120 and 180 kg ha^{-1}) and row spacing applications (20, 40 and 60 cm) on yield and quality of Oenothera biennis L. grown in irrigated lowland and unirrigated dryland in the Gukurova conditions region in 2000 and 2001. The field trials were arranged in split-split-plot design with 3 replicates. Some …

Go to article

The Replication Of The Purple-Flowered Rhododendron (Rhododendron Ponticum L.) By Seed And Chances Of Survival In Replanting In Different Media, Mustafa Var, Deryanur Di̇nçer Jan 2006

The Replication Of The Purple-Flowered Rhododendron (Rhododendron Ponticum L.) By Seed And Chances Of Survival In Replanting In Different Media, Mustafa Var, Deryanur Di̇nçer

Turkish Journal of Agriculture and Forestry

This study investigates the germination, replanting and survival of Rhododendron ponticum, a species native to Turkey, in different media. The conditions of the germination medium were first investigated and the seedlings obtained were applied as a first replicate in a peat medium, and at the end of 4 months a second replicate in 7 different media was used to examine their development and survival in these media. The data obtained were then compared to the data obtained from soil analysis and their relations were outlined along with statistical considerations. According to the findings, an efficient germination was observed when the …

Go to article

Technical Efficiency Analysis Of Tobacco Farming In Southeastern Anatolia, Mustafa Necat Ören, Tuna Alemdar Jan 2006

Technical Efficiency Analysis Of Tobacco Farming In Southeastern Anatolia, Mustafa Necat Ören, Tuna Alemdar

Turkish Journal of Agriculture and Forestry

The technical efficiencies of tobacco farms in Southeastern Anatolia were estimated with parametric and non-parametric methods. Data obtained from 149 tobacco farms were used in the empirical analysis. Results obtained with an output oriented Data Envelopment Analysis (DEA) were compared to those obtained from Stochastic Frontier Analysis (SFA) and the differences are discussed. According to the results of the DEA model, mean efficiency of tobacco farmers was found to be 0.45 and 0.56 for Constant and Variable Returns to Scale (CRS and VRS) assumptions, respectively. Mean technical efficiency obtained with the SFA model was found to be 0.54. A strong …

Go to article

Co-Inoculation Effects Of Phosphate Solubilizing Microorganisms And Glomus Fasciculatum On Green Gram-Bradyrhizobium Symbiosis, Almas Zaidi, Mohammad Saghir Khan Jan 2006

Co-Inoculation Effects Of Phosphate Solubilizing Microorganisms And Glomus Fasciculatum On Green Gram-Bradyrhizobium Symbiosis, Almas Zaidi, Mohammad Saghir Khan

Turkish Journal of Agriculture and Forestry

Experiments were conducted to evaluate the effects of nitrogen fixing (Bradyrhizobium sp. (Vigna)), phosphate solubilizing bacterium (Bacillus subtilis), phosphate solubilizing fungus (Aspergillus awamori) and AM fungus (Glomus fasciculatum) on the growth, chlorophyll content, seed yield, nodulation, grain protein, and N and P uptake of green gram plants grown in phosphorus-deficient soils. The triple inoculation of AM fungus, Bradyrhizobium sp. (Vigna) and B. subtilis significantly increased dry matter yield, chlorophyll content in foliage and N and P uptake of green gram plants. Seed yield was enhanced by 24% following triple inoculation of Bradyrhizobium + G. fasciculatum + B. subtilis, relative to …

Go to article

Organic Acid Pulping Of Rice Straw. I: Cooking, M. Sarwar Jahan, Z. Z. Lee, Yongcan Jin Jan 2006

Organic Acid Pulping Of Rice Straw. I: Cooking, M. Sarwar Jahan, Z. Z. Lee, Yongcan Jin

Turkish Journal of Agriculture and Forestry

Acetic acid or formic acid treatment of rice straw with the variation of reaction variables, namely acid concentration, catalyst (HCl or H_2SO_4) concentration, reaction time, temperature and liquor ratio, was investigated to ascertain effects on the dissolution of hemicellulose, which facilitates the dissolution of lignin during alkaline extraction or peroxyacid treatment and improved the drainability of straw pulp. Maximum pentosan dissolution was observed in 80% acetic acid with 0.6% H_2SO_4 catalyst at 80 °C for 120 min. Acetic acid dissolved pentosan more slowly than formic acid. The catalytic activity of H_2SO_4 was higher than that of HCl with respect to …

Go to article

Preliminary Results On Genome Mapping Of An Italia X Mercan Grapevine Population, Zeli̇ha Gökbayrak, Cengi̇z Özer, Gökhan Söylemezoğlu Jan 2006

Preliminary Results On Genome Mapping Of An Italia X Mercan Grapevine Population, Zeli̇ha Gökbayrak, Cengi̇z Özer, Gökhan Söylemezoğlu

Turkish Journal of Agriculture and Forestry

This research was conducted to construct genetic linkage maps of Vitis (2n = 38) from grape populations (60 F_1 + 2 parents) of crossing of Italia and Mercan (Vitis vinifera L.) cultivars. RAPD reactions were performed using a total of 300 RAPD primers. The amplification products were scored from negatives as presence or absence. Only 59 loci for Italia and 55 loci for Mercan could be used for linkage analysis. Mapmaker/Exp.3.0 was used for genetic linkage analysis with multipoint ordering among markers at LOD >= 3.0 score. The map was developed by using the double pseudo-testcross mapping approach. Italia and …

Go to article

Effect Of Sowing Date And Limited Irrigation On The Seed Yield And Quality Of Dill (Anethum Graveolens L.), Saeid Zehtab-Salmasi, Kazem Ghassemi-Golez, Sajad Moghbeli Jan 2006

Effect Of Sowing Date And Limited Irrigation On The Seed Yield And Quality Of Dill (Anethum Graveolens L.), Saeid Zehtab-Salmasi, Kazem Ghassemi-Golez, Sajad Moghbeli

Turkish Journal of Agriculture and Forestry

Field and laboratory experiments were carried out in order to investigate the influence of 3 sowing dates and 4 irrigation disruption treatments at different growth stages on the seed yield and quality of dill (Anethum graveolens L.). The results showed that for successful seed production dill must be sown in early spring (3 to 18 April), since there was no significant difference in seed yield between the sowing dates of 3 April (S_1) and 18 April (S_2). Seeds from S_1 sowing had a higher percentage of germination after accelerated ageing (AA), a faster germination rate and a heavier seedling dry …

Go to article

First Prev Next Last