Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Keyword
-
- Turkey (5)
- Agriculture (2)
- Balanced fertilization (2)
- Biopulping (2)
- Forests (2)
-
- Fungi (2)
- Maize (2)
- Silage maize (2)
- Soil (2)
- Topography (2)
- Yield (2)
- AUDPC (1)
- Above ground biomass (1)
- Acacia (1)
- Acacia auriculiformis (1)
- Acid detergent fiber (1)
- Agricultural production (1)
- Agronomic characters (1)
- Allium sativum L. (1)
- Animal health (1)
- Animal nutrition (1)
- Arachis hypogaea L. (1)
- Artificial neural networks (1)
- B. bassiana (1)
- BMPs (1)
- Besse (1)
- Bicarbonate in water (1)
- Biobleaching (1)
- Biochemical and molecular markers (1)
- Biological control (1)
Articles 1 - 30 of 65
Full-Text Articles in Forest Sciences
The Improved Acre: The Besse Farm As A Case Study In Landclearing, Abandonment, And Reforestation, Theresa Kerchner
The Improved Acre: The Besse Farm As A Case Study In Landclearing, Abandonment, And Reforestation, Theresa Kerchner
Maine History
From the vantage of the twenty-first century, it seems remarkable that farmers, working with only hand tools and farm animals, converted over half of New England’s “primeval” forests to tillage and pasture in the eighteenth and nineteenth centuries. This period was marked by transitions as farmers responded to new markets, changing family values, and declining natural resources. These forces brought an end to agrarian expansion and caused New England’s iconic pastoral landscape to begin to revert to forestland. A case study based on the former Jabez Besse, Jr. farm in central upland Maine provides a link to New England’s agricultural …
Burnt Harvest: Penobscot People And Fire, James Eric Francis Sr.
Burnt Harvest: Penobscot People And Fire, James Eric Francis Sr.
Maine History
The scientific and ethnographic record confirms the fact that in southern New England, Indians used fire as a forest management tool, to facilitate travel and hunting, encourage useful grasses and berries, and to clear land for agriculture. Scholars have long suggested that agricultural practices, and hence these uses of fire, ended at the Saco or Kennebec, with Native people east of this divide less likely to systematically burn their forests. This article argues that Native people on the Penobscot River used fire, albeit in more limited ways, to transform the forest and create a natural environment more conducive to their …
Farms To Forests In Blue Hill Bay: Long Island, Maine, Kristen Hoffman
Farms To Forests In Blue Hill Bay: Long Island, Maine, Kristen Hoffman
Maine History
Disturbance histories are important factors in determining the composition and structure of today’s forests, and not least among these disturbances is the human use of the land. Land clearing in Maine peaked in 1880 at six and a half million acres, beginning on the coast and lower river valleys and spreading northward and eastward. The forests of Maine’s coastal islands have endured a longer period of clearing than any other in the state. Long Island, located in Blue Hill Bay, was first settled in 1779, primarily by farmers. Sheep-herding, lumbering, fishing, and granite quarrying provided supplemental livelihoods. By 1920 all …
Topographic Factors Affecting The Tree Species Composition Of Forests In The Upper Piedmont Of Virginia, Rachael C. Brown, Todd S. Fredericksen
Topographic Factors Affecting The Tree Species Composition Of Forests In The Upper Piedmont Of Virginia, Rachael C. Brown, Todd S. Fredericksen
Virginia Journal of Science
There are many factors that influence forest species composition and many are linked to topographical features. This study, conducted on the Ferrum College campus in the Upper Piedmont Physiographic Province of Virginia revealed three major forest types associated with topographic factors using cluster analysis and detrended correspondence analysis . The first type of forest occurred mostly on northeastern slopes on toe slope topographic positions and was mainly composed of tulip tree (Liriodendron tulipifera) and red maple (Acer rubrum). The second type of forest was found on shoulder and side slope positions and was composed mostly of …
Compatible Stem Taper And Total Tree Volume Equations For Loblolly Pine Plantations In Southeastern Arkansas, C. Vanderschaaf
Compatible Stem Taper And Total Tree Volume Equations For Loblolly Pine Plantations In Southeastern Arkansas, C. Vanderschaaf
Journal of the Arkansas Academy of Science
A system of equations was used to produce compatible outside-bark stem taper and total tree volume equations for loblolly pine (Pinus taeda L.) plantations in southeastern Arkansas. Paired height diameter stem measurements were obtained from trees located in one 45-year-old unthinned plantation. After fitting and integrating the stem taper equation to total tree height, an individual tree constant form factor volume equation was obtained. The stem taper equation can also be integrated to any merchantable height to obtain merchantable volume. To see how the constant form factor volume equation predicts outside bark volume for trees vastly different than those used …
Organic Amendment Based On Tobacco Waste Compost And Farmyard Manure: Influence On Soil Biological Properties And Butter-Head Lettuce Yield, Nur Okur, Hüseyi̇n Hüsnü Kayikçioğlu, Bülent Okur, Sezai̇ Deli̇bacak
Organic Amendment Based On Tobacco Waste Compost And Farmyard Manure: Influence On Soil Biological Properties And Butter-Head Lettuce Yield, Nur Okur, Hüseyi̇n Hüsnü Kayikçioğlu, Bülent Okur, Sezai̇ Deli̇bacak
Turkish Journal of Agriculture and Forestry
Agro-industrial waste presents an alternative to inorganic fertilizer. It is possible to use tobacco waste as a soil amendment due to its high organic matter and low toxic element content. Tobacco waste compost (TWC) and farmyard manure (FYM) were applied to Typic Xerofluvent soil at various ratios, and butter-head lettuce (Lactuca sativa L. var. Capitata L.) was grown. The effects on soil organic C and total N content, soil microbial biomass, soil respiration, activity of 4 enzymes (dehydrogenase, urease, alkaline phosphatase, and \beta-glucosidase), and lettuce yield were determined. Organic materials were applied at the rate of 50 t ha^{-1}. Significantly …
A Perspective On Balanced Fertilization In The Mediterranean Region, John Ryan
A Perspective On Balanced Fertilization In The Mediterranean Region, John Ryan
Turkish Journal of Agriculture and Forestry
The demands on agriculture to produce food and fibre are driven by the inexorable increases in the world's population. However, advances in agricultural science in the past century have helped food production to keep pace with population growth, thus keeping hunger and malnutrition at bay. The achievements in enhanced agricultural output, especially in the developed world, are attributed to 3 main factors: expansion of irrigation, development of improved higher-yielding, disease-resistant crop cultivars, and chemical fertilizers. Fertilizers are fundamental to producing more crop output from existing land in cultivation. Along with increased fertilizer use comes greater concern about the environment in …
Identification Of Advantages Of Maize-Legume Intercropping Over Solitary Cropping Through Competition Indices In The East Mediterranean Region, Şaban Yilmaz, Mehmet Atak, Mustafa Erayman
Identification Of Advantages Of Maize-Legume Intercropping Over Solitary Cropping Through Competition Indices In The East Mediterranean Region, Şaban Yilmaz, Mehmet Atak, Mustafa Erayman
Turkish Journal of Agriculture and Forestry
Alternate planting combinations of maize (Zea mays L.) with common bean (Phaseolus vulgaris L.) or cowpea (Vigna sinensis L.) were compared with the solitary planting of each crop during 2003 and 2004 under the East Mediterranean conditions in Turkey. The experiment comprised 15 treatments; sole planting of maize (71,500 plant ha^{-1}), sole planting of common bean (285,750 plant ha^{-1}) and cowpea (285,750 plant ha^{-1}), and 2 different planting patterns (1- and 2-row plantings) with 6 maize-legumes intercropping series, 50:50, 67:50, and 100:50, respectively, using randomized complete block design with 3 replications. Evaluation of the planting patterns was performed on basis …
Some Parameters Affecting Fire Behavior In Anatolian Black Pine Slash, Ömer Küçük, Ertuğrul Bi̇lgi̇li̇, Bülent Sağlam, Sağdan Başkaya, Bahar Di̇nç Durmaz
Some Parameters Affecting Fire Behavior In Anatolian Black Pine Slash, Ömer Küçük, Ertuğrul Bi̇lgi̇li̇, Bülent Sağlam, Sağdan Başkaya, Bahar Di̇nç Durmaz
Turkish Journal of Agriculture and Forestry
This study presents and discusses the results of a fire behavior study conducted in Anatolian black pine (Pinus nigra J.F. Arnold subsp. nigra var. caramanica (Loudon) Rehder) slash. A total of 30 experimental fires were conducted over 3 years under varying weather and fuel loading conditions in aging slash. Relationships between fire behavior and fuel properties and weather conditions were determined with correlation and regression analyses. Spread rate, fuel consumption, and fire intensity were all related to fuel properties and weather, and ranged from 0.2 to 3.1 m min^{-1}, from 0.71 to 6.65 kg m^{-2}, and from 14.05 to 3961.46 …
Estimating The Effect Of Controlled Drainage On Soil Salinity And Irrigation Efficiency In The Harran Plain Using Saltmod, İdri̇s Bahçeci̇, Recep Çakir, A. Suat Nacar, Pinar Bahçeci̇
Estimating The Effect Of Controlled Drainage On Soil Salinity And Irrigation Efficiency In The Harran Plain Using Saltmod, İdri̇s Bahçeci̇, Recep Çakir, A. Suat Nacar, Pinar Bahçeci̇
Turkish Journal of Agriculture and Forestry
Soil salinity and water logging, as well as water scarcity, are the most common problems limiting irrigated agriculture crop production in southeast Turkey. Thus, this study was conducted in order to predict the effect of drainage control factors on irrigation efficiency, irrigation sufficiency, root zone salinity, and drain discharge using SaltMod simulation. Investigations were conducted in the Harran Plain, also known as the Fertile Crescent or Upper Mesopotamia. High crop evapotranspiration rates and deep water table levels have led to visible increases in irrigation water requirements in the region. Therefore, the level of the water table appears to be a …
The Determination Of Symbiotic Effectiveness Of Rhizobium Strains Isolated From Wild Chickpeas Collected From High Altitudes In Erzurum, Hati̇ce Öğütçü, Ömer Faruk Algur, Erdal Elkoca, Fai̇k Kantar
The Determination Of Symbiotic Effectiveness Of Rhizobium Strains Isolated From Wild Chickpeas Collected From High Altitudes In Erzurum, Hati̇ce Öğütçü, Ömer Faruk Algur, Erdal Elkoca, Fai̇k Kantar
Turkish Journal of Agriculture and Forestry
This study was conducted in order to evaluate the symbiotic effectiveness of Rhizobium leguminosarum subsp. ciceri strains isolated from perennial wild chickpeas (Cicer anatolicum) collected from high altitudes (2000-2500 m) in mountains in Erzurum, Eastern Anatolia, Turkey. For this purpose, 21 isolates were obtained from wild chickpeas. Chickpea seeds were inoculated with these isolates and grown in pots containing sterile sand under both low (15 °C day/9 °C night) and normal (25 °C day/22 °C night) temperature conditions in a controlled plant growth cabinet. All strains investigated formed nodules under the normal temperature, but only 8 strains were able to …
High Efficiency Somatic Embryogenesis From Immature Zygotic Embryos Of Grapevine: The Effect Of Genotype, Media, 2,4-D, And Incubation Conditions, Serpi̇l Gök Tangolar, Saadet Büyükalaca, Fuat Ergenoğlu
High Efficiency Somatic Embryogenesis From Immature Zygotic Embryos Of Grapevine: The Effect Of Genotype, Media, 2,4-D, And Incubation Conditions, Serpi̇l Gök Tangolar, Saadet Büyükalaca, Fuat Ergenoğlu
Turkish Journal of Agriculture and Forestry
Immature zygotic embryos of 41 B grape rootstock (V. vinifera L. cv. 'Chasselas' x V. berlandieri) and Yalova İncisi (V. vinifera L.) were cultured on MS, NN, and B5 media supplemented with 0.5, 1, 2, and 4 mg l^{-1} 2,4-D at 16/8 h light/dark photoperiod and complete darkness. For 41 B rootstock, the highest somatic embryo formation was obtained from dark condition on B5 media containing 0.5 and 1 mg l^{-1} 2,4-D with the rates of 30% and 28.9%, respectively. Yalova İncisi zygotic embryos produced 5% somatic embryos only at 16/8 h light/dark photoperiod of MS supplemented with 1 mg …
Estimating Fuel Biomass Of Some Shrub Species (Maquis) In Turkey, Bülent Sağlam, Ömer Küçük, Ertuğrul Bi̇lgi̇li̇, Bahar Di̇nç Durmaz, İsmai̇l Baysal
Estimating Fuel Biomass Of Some Shrub Species (Maquis) In Turkey, Bülent Sağlam, Ömer Küçük, Ertuğrul Bi̇lgi̇li̇, Bahar Di̇nç Durmaz, İsmai̇l Baysal
Turkish Journal of Agriculture and Forestry
Regression equations were developed to estimate shrub fuel biomass of a maquis formation in western Turkey. The relationships between some shrub characteristics and live, dead, available (for consumption), and total fuel biomass were determined by simple/multiple linear regression. Measured biomass values for live, available, and total fuels varied from 0.70 to 6.74 kg m^{-2}, from 0.78 to 3.03 kg m^{-2}, and from 1.06 to 7.72 kg m^{-2}, respectively. The results obtained indicated that shrub fuel biomass could be satisfactorily predicted using the regression equations generated. The resulting equations were able to account for 60% to 89% of the observed variation …
Genotypic Differences For Reproductive Growth, Yield, And Yield Components In Groundnut (Arachis Hypogaea L.), Sevgi̇ Çalişkan, Mehmet Emi̇n Çalişkan, Mehmet Arslan
Genotypic Differences For Reproductive Growth, Yield, And Yield Components In Groundnut (Arachis Hypogaea L.), Sevgi̇ Çalişkan, Mehmet Emi̇n Çalişkan, Mehmet Arslan
Turkish Journal of Agriculture and Forestry
This study was conducted to evaluate reproductive growth, oil and protein accumulation in seeds, and some yield components of 8 groundnut genotypes in 2001 and 2002. The number of flowers, pegs, and pods per plant during the reproductive period were determined with periodic counts starting from flowering. The percentage of flowers turned to pegs and pods, and the percentage of pegs turned to pods were calculated at the end of the growing period. After pod setting, 6 plants per plot were harvested at 15-day intervals to determine oil and protein content of seeds. At final harvest pod yield and some …
Historical Forest Landscape Changes In The Buffalo River Sub-Basin In Arkansas, Robert C. Weih Jr., A. Dick
Historical Forest Landscape Changes In The Buffalo River Sub-Basin In Arkansas, Robert C. Weih Jr., A. Dick
Journal of the Arkansas Academy of Science
Forested areas in the United States have been altered since the time of European settlement. For this reason, research interests have increased in comparing present day vegetation with that of the preEuroamerican era to see what changes, if any, have occurred in some of our more outstanding natural areas. Such studies have been conducted in other parts of the United States but limited research has been done in Arkansas. The General Land Office (GLO) surveys of Arkansas were originally conducted between approximately 1815 and 1850 shortly after Arkansas was acquired from France by means of the Louisiana Purchase and provides …
Comparison Of Pine Height Models For The Crossett Experimental Forest, Don C. Bragg
Comparison Of Pine Height Models For The Crossett Experimental Forest, Don C. Bragg
Journal of the Arkansas Academy of Science
Many models to predict tree height from diameter have been developed, but not all are equally useful. This study compared a set of height-diameter models for loblolly (Pinus taeda) and shortleaf (Pinus echinata) pines from Ashley County, Arkansas. Almost 560 trees ranging in diameter at breast height (DBH) from 0.3 cm (both species) to 91.9 cm (for shortleaf) or 108.2 cm (for loblolly) were chosen for measurement. Height equations were then fit to four different functions (Chapman-Richards, modified logistic, exponential, and Curtis-Arney) with weighted nonlinear least squares regression using DBH as the only predictor. Models were evaluated using a series …
Isozyme Variation In Four Natural Populations Of Cedrus Libani A.Rich. In Turkey, Yusuf Kurt, Nuray Kaya, Kani̇ Işik
Isozyme Variation In Four Natural Populations Of Cedrus Libani A.Rich. In Turkey, Yusuf Kurt, Nuray Kaya, Kani̇ Işik
Turkish Journal of Agriculture and Forestry
RT, Nuray KAYA, Kani IŞIK Akdeniz University, Faculty of Arts and Sciences, Biology Department, 07058 Antalya - TURKEY Abstract Genetic variation in 4 natural populations of Cedrus libani A.Rich. was determined using isoenzyme analyses. Isozymes from 12 enzyme systems extracted from haploid female gametophytes of the seeds were separated by horizontal starch gel electrophoresis. In the 12 enzyme systems, 16 loci and 37 alleles were observed. Average proportion of polymorphic loci for the populations ranged from 43.8% to 62.5%. The average number of alleles per locus per population was estimated as 2.0. Mean estimated expected-heterozygosity (He) of the populations was …
Effect Of Pollination Levels On Yield And Quality Of Maize Grown For Silage, Selahatti̇n İptaş, Musa Yavuz
Effect Of Pollination Levels On Yield And Quality Of Maize Grown For Silage, Selahatti̇n İptaş, Musa Yavuz
Turkish Journal of Agriculture and Forestry
Maize (Zea mays L.) hybrids with good yields of grain and whole-plant dry matter are preferred for forage production. The objective of this study was to examine the relationship between kernel development and nutritive value of maize silage, using controlled pollination to alter the extent of ear fill in 4 maize hybrids. Whole-plant acid detergent fiber (ADF), neutral detergent fiber (NDF), and crude protein (CP) were measured. Pollination control affected the ear fill for 0% and 100% pollination levels. Stem diameter and plant height were not affected by pollination treatment; however, they were different for the hybrids. Leaf content and …
Field Resistance Of Wheat (Triticum Aestivum L.) Genotypes From Different Countries To Leaf Rust (Puccinia Triticina), Beyhan Akin, Nusret Zenci̇rci̇, İzzet Özseven
Field Resistance Of Wheat (Triticum Aestivum L.) Genotypes From Different Countries To Leaf Rust (Puccinia Triticina), Beyhan Akin, Nusret Zenci̇rci̇, İzzet Özseven
Turkish Journal of Agriculture and Forestry
Puccinia triticina causes leaf rust in wheat and results in severe yield losses in mild wheat growing areas of Turkey: Thrace, Marmara, Mediterranean, and Çukurova. A feasible way to avoid any damage is to grow slow rusting cultivars. We evaluated 94 wheat genotypes from different countries and 39 leaf rust differentials for their reactions to leaf rust field epidemics. Slow rusting, though, requires both the prediction of Lr genes in the greenhouse and an effective screening of genotypes against the leaf rust field epidemics; the evaluation at the sites regularly favoring leaf rust epidemics like Adapazarı is also possible. Various …
Response Of Silage Maize (Zea Mays L.) To Nitrogen Fertilizer After Different Crops In A Semi Arid Environment, İsmai̇l Gül, Mehmet Yildirim, Cuma Akinci, İlhan Doran, Hasan Kiliç
Response Of Silage Maize (Zea Mays L.) To Nitrogen Fertilizer After Different Crops In A Semi Arid Environment, İsmai̇l Gül, Mehmet Yildirim, Cuma Akinci, İlhan Doran, Hasan Kiliç
Turkish Journal of Agriculture and Forestry
The use of legume crops in maize rotation systems may decrease the need for nitrogen (N) fertilization and increase total output. The effect of previous crops (wheat, barley, lentil, Hungarian vetch, and fallow) and different N fertilization rates (0, 120, 160, 200, and 240 kg of N ha^{-1}) on yield and N content of silage maize (Zea mays L.) were evaluated under irrigated conditions in Diyarbakır, Turkey, during the 1999-2000, 2000-2001, and 2001-2002 growing seasons. Dry matter yield varied between 10,068.2 and 16,480.4 kg ha^{-1}. It was determined that Hungarian vetch was a suitable rotation crop, and that 200 kg …
Effect Of Different Planting Dates On Yield And Yield Components Of Peanut (Arachis Hypogaea L.), Öner Canavar, Mustafa Ali̇ Kaynak
Effect Of Different Planting Dates On Yield And Yield Components Of Peanut (Arachis Hypogaea L.), Öner Canavar, Mustafa Ali̇ Kaynak
Turkish Journal of Agriculture and Forestry
This study was conducted in the experiment fields at the Field Crops Department of the Faculty of Agriculture at Adnan Menderes University in 2004-2005. The experiment was performed in a split-plot design with 3 replications. The goals of this study were to determine the appropriate planting date for peanut under the ecological conditions of Aydın and to investigate the effect of different planting dates on some agronomic traits, yield, and yield components of 3 commercial peanut cultivars (Gazipaşa, Florispan, and NC-7) and the local cultivar. It was determined that the planting date had a statistically significant effect on pod yield, …
Seed Quality, And Fatty Acid And Sugar Contents Of Pepper Seeds (Capsicum Annuum L.) In Relation To Seed Development And Drying Temperatures, İbrahi̇m Demi̇r, Azi̇z Teki̇n, Z. Aytanga Ökmen, Gamze Okçu, Burcu B. Kenanoğlu
Seed Quality, And Fatty Acid And Sugar Contents Of Pepper Seeds (Capsicum Annuum L.) In Relation To Seed Development And Drying Temperatures, İbrahi̇m Demi̇r, Azi̇z Teki̇n, Z. Aytanga Ökmen, Gamze Okçu, Burcu B. Kenanoğlu
Turkish Journal of Agriculture and Forestry
This study was carried out in order to determine the effects of drying temperature (25, 35, and 45 °C) and the developmental stage (55, 65, 75, and 85 days after anthesis (DAA)) on germination, vigor, and the sugar (sucrose, glucose, fructose) and fatty acid contents of pepper seeds (Capsicum annuum L.) over 2 consecutive years. In seeds harvested at 75 DAA and after, seed viability and vigor were not influenced by drying at temperatures up to 45 °C. Linoleic acid (18:2) was the main fatty acid in pepper seeds, comprising 75-80% of total fatty acids. It was followed by oleic …
Chemical Control Of Septoria Blight Of Parsley Caused By Septoria Petroselini, Fati̇h Mehmet Tok
Chemical Control Of Septoria Blight Of Parsley Caused By Septoria Petroselini, Fati̇h Mehmet Tok
Turkish Journal of Agriculture and Forestry
The effects of various fungicides on spore germination, mycelial growth, seed transmission, and infection by Septoria petroselini Desm., the causal agent of Septoria blight of parsley, were determined in this study. Eleven fungicides (azoxystrobin, benomyl, captan, copper oxychloride, kresoxim-methyl mancozeb, maneb, propineb, tebuconazole, thiram, and trifloxystrobin) were tested at various concentrations ranging from 0.025 to 50 mg l^{-1} in spore germination and mycelial growth assays. Tebuconazole was the most effective fungicide in all the experiments, with an EC_{50} value < 0.052 mg l^{-1}, followed by azoxystrobin, captan, and trifloxystrobin, with EC_{50} values of 0.053, 0.06, and 0.066 mg l^{-1}, respectively. Many of the fungicides were effective on spore germination in PDA medium at concentrations ranging from 0.052 mg l^{-1} (Tebuconazole) to 23.032 mg l^{-1} (copper oxychloride). Captan, mancozeb, maneb, and thiram were very effective at reducing spore germination, but were less effective at reducing mycelial growth, for which their EC_{50} values were up to 735-, 192-, 192-, and 191-fold higher, respectively. Seed transmission of Septoria blight of parsley was controlled by tebuconazole, benomyl, azoxystrobin, kresoxim-methyl, and captan, which had inhibition rates of up to 95%, 93%, 93%, and 66%, respectively. Azoxystrobin, benomyl, kresoxim-methyl, trifloxystrobin, and tebuconazole inhibited Septoria blight in vivo, but captan, mancozeb, and maneb were effective at reducing the number of lesions only when they were applied before inoculation. Copper oxychloride, the most extensively used fungicide for controlling Septoria blight by parsley growers, was surprisingly the least effective in all the experiments.
Genetic Analysis Of Grain Yield And Starch Content In Nine Maize Populations, Zvonimir Zdunic, Anto Mijic, Krunoslav Dugalic, Domagoj Simic, Josip Brkic, Ana Marjanovic Jeromela
Genetic Analysis Of Grain Yield And Starch Content In Nine Maize Populations, Zvonimir Zdunic, Anto Mijic, Krunoslav Dugalic, Domagoj Simic, Josip Brkic, Ana Marjanovic Jeromela
Turkish Journal of Agriculture and Forestry
The objective of this study was to estimate main genetic effects including digenic non-allelic epistasis for yield and starch content in grain by generation mean analysis performed in 9 maize populations (biparental crosses) and their subsequent 6 generations (2 parental, F1 and F2, and 2 backcrosses). The estimated additive-dominance model of inheritance was, due to epistasis, only partially successful in explaining inheritance model for investigated traits and crosses. The additive-dominance model was adequate at 6 crosses for grain yield and 3 crosses for starch content. A digenic epistatic model was sufficient to explain the inheritance model at 6 crosses for …
Some Properties Of Eucalyptus Wood Flour Filled Recycled High Density Polyethylene Polymer-Composites, Fati̇h Mengeloğlu, Kadi̇r Karakuş
Some Properties Of Eucalyptus Wood Flour Filled Recycled High Density Polyethylene Polymer-Composites, Fati̇h Mengeloğlu, Kadi̇r Karakuş
Turkish Journal of Agriculture and Forestry
The mechanical properties of eucalyptus wood flours (EWF) filled recycled high density polyethylene (HDPE) composites were investigated. First thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) analysis were conducted for recycled HDPE and EWF. Later the effects of EWF and maleic anhydride grafted polyethylene (MAPE) concentrations were studied. TGA analysis revealed that EWF and recycled HDPE started degrading around 230 °C and 280 °C, respectively. Melting temperature of the recycled HDPE was around 129 °C. Mechanical property evaluation showed that the increased concentration of EWF in polymer-composites reduced the tensile, flexural, and impact strength while increased the tensile and …
Litter Mass Loss Rates In Deciduous And Coniferous Trees In Artvin, Northeast Turkey: Relationships With Litter Quality, Microclimate, And Soil Characteristics, Temel Sariyildiz, Mehmet Küçük
Litter Mass Loss Rates In Deciduous And Coniferous Trees In Artvin, Northeast Turkey: Relationships With Litter Quality, Microclimate, And Soil Characteristics, Temel Sariyildiz, Mehmet Küçük
Turkish Journal of Agriculture and Forestry
Plant litter decomposition is controlled by both biotic and abiotic factors. It has been widely hypothesized that litter quality and climatic and soil conditions regulate decomposition. The present study examined the decomposition of native forest tree litter on 2 aspects (the north and the south) and at 3 altitudes (top, middle, and bottom) on each aspect in Artvin province to determine the influence of litter quality, microclimate, and soil characteristics on the rate of decomposition. A litter-bag experiment was performed using beech, oak, fir, and pine litter. The litter bags were placed on the north- and south-facing sites and at …
Comparison Of Different Chemical Pulps From Wheat Straw And Bleaching With Xylanase Pre-Treated Ecf Method, Sai̇m Ateş, Celi̇l Atik, Yonghao Ni, Esat Gümüşkaya
Comparison Of Different Chemical Pulps From Wheat Straw And Bleaching With Xylanase Pre-Treated Ecf Method, Sai̇m Ateş, Celi̇l Atik, Yonghao Ni, Esat Gümüşkaya
Turkish Journal of Agriculture and Forestry
Different pulping processes, kraft-anthraquinone (AQ), bio-kraft, soda-AQ, ALCELL, and FORMACELL were studied for wheat straw. Fungal pre-treatment with Ceriporiopsis subvermispora, white rot fungi, was applied to wheat straw before kraft-AQ pulping, the so-called bio-kraft process. Fiber properties, carbohydrate contents, FT-IR analyses, strength properties of resultant paper, and bleachability characteristics were included to determine the properties of these pulp samples. In addition, the effects of the xylanase pre-treatment on the subsequent Elemental Chlorine Free (ECF) bleaching process were investigated. The results indicated that kraft-AQ pulps from wheat straw exhibited better characteristics than the other pulp samples with lower kappa number, higher …
Nodulation Reaction To Fungal Infections In Larvae Of Leptinotarsa Decemlineata (Say) (Coleoptera: Chrysomelidae) Mediated By Eicosanoids, Hasan Tunaz, Cemi̇l Bengi̇n, Mehmet Kubi̇lay Er
Nodulation Reaction To Fungal Infections In Larvae Of Leptinotarsa Decemlineata (Say) (Coleoptera: Chrysomelidae) Mediated By Eicosanoids, Hasan Tunaz, Cemi̇l Bengi̇n, Mehmet Kubi̇lay Er
Turkish Journal of Agriculture and Forestry
Injecting larvae of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), with eicosanoid biosynthesis inhibitor, phenidone (104 µg larva^{-1}), immediately prior to intrahemocoelic injections of the fungus Beauveria bassiana (Bals.) Vuill. (Deuteromycota: Hyphomycetes) (isolate No: HRI-215: 10 µg larva^{-1} from 2 x 106 blastospores ml^{-1}), sharply reduced (about 75 %) the nodulation reaction to the fungal challenges. Separate treatments with specific inhibitors of the major enzymes involved in eicosanoid biosynthesis, including phospholipase A_2 (PLA_2), cyclooxygenase, and lipoxygenase, reduced nodulation reactions to fungal infections. These findings support the view that nodule formation is a complex process involving lipoxygenase and cyclooxygenase …
Population Parameters Of Tetranychus Cinnabarinus Boisduval (Prostigmata: Tetranychidae) On Eight Strawberry Cultivars, Cengi̇z Kazak, Cemal Ki̇bri̇tçi̇
Population Parameters Of Tetranychus Cinnabarinus Boisduval (Prostigmata: Tetranychidae) On Eight Strawberry Cultivars, Cengi̇z Kazak, Cemal Ki̇bri̇tçi̇
Turkish Journal of Agriculture and Forestry
Development times, reproductive rates, and population growth parameters of Tetranychus cinnabarinus Boisd. on 8 strawberry (Fragaria x ananassa Duchesne) varieties were evaluated under laboratory conditions. Total development times of immature males and females were not significantly influenced by the strawberry varieties. T. cinnabarinus laid significantly more eggs per day on cultivar Muir (8.46) than on the other cultivars. Similarly, T. cinnabarinus on Muir had the highest net reproductive rate (R_o) (120.19 F/F), while R_o was the lowest on cultivar Sweet Charlie (39.51 F/F). The generation time ranged from 18.96 to 22.32 days, but no significant varietal effect was seen. The …
Effects Of Increased Phosphorus Rates And Plant Densities On Yield And Yield-Related Traits Of Narbon Vetch Lines, Şaban Yilmaz
Effects Of Increased Phosphorus Rates And Plant Densities On Yield And Yield-Related Traits Of Narbon Vetch Lines, Şaban Yilmaz
Turkish Journal of Agriculture and Forestry
We evaluated seed yield, forage yield, and yield-related traits of 4 different narbon vetch (Vicia narbonensis L.) lines using 3 phosphorus rates and 4 plant densities. The experiment was conducted during the 1999-2000 and 2000-2001 cultivation seasons in Hatay, located in the Eastern Mediterranean region of Turkey. The experimental design was a split-split plot design with 3 replications. Phosphorus levels of 25, 50, and 75 kg P_2O_5 ha^{-1} were the main plots, narbon vetch lines (2382, 2385, 2387, and 2561) were the split plots, and seeding rates (50, 75, and 100 plants m^{-2}) were the split-split plots. Analysis of variance …