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Articles 31 - 60 of 251
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Water Consumption And Growth Of Some Barley Genotypes Under Eskişehir Conditions, Mehmet Aydin, A. Vahap Katkat
Water Consumption And Growth Of Some Barley Genotypes Under Eskişehir Conditions, Mehmet Aydin, A. Vahap Katkat
Turkish Journal of Agriculture and Forestry
Using eight barley cultivars field experiments were carried out in Eskişehir, from 1991 through 1994. Water consumption and dry mater yield of genotypes were studied. Also, the yields and yield components as well as their relationship with dry matter production in different growing periods were studied. There was no significant difference among evapotranspiration of genotypes. The Water Use Efficiency (WUE) varied with year. Mean annual WUE of genotypes varied from 3.6 to 4.75 kg / da^-1 mm^-1 for biological yield, and from 1.08 to 1.45 kg / da^-1 mm^-1 for grain yield. Total dry-matter production throughout the growing season and …
Physical Properties Of Alder [Alnus Glutinose Subsps. Barbata (C.A.Mey.) Yalt.] Wood Obtained From Rize-Çayeli Region, Yalçin Örs, Nurgül Ay
Physical Properties Of Alder [Alnus Glutinose Subsps. Barbata (C.A.Mey.) Yalt.] Wood Obtained From Rize-Çayeli Region, Yalçin Örs, Nurgül Ay
Turkish Journal of Agriculture and Forestry
In this study, physical properties of Alder Wood [Alnus glutinose subsps. barbata (C.A.Mey.)Yalt.] were investigated. 10 trees used for experiments were obtained from Rize-Çayeli region and samples were then prepared in accordance with the related standarts. Width of annual rings, density in oven-dried and airdried position, density value in volume, the amount of shrinkage and swelling, the ratio of cell walls and air cavities, the moisture content of wood at green condition, and the fiber saturation point as physical properties were determined. Results indicated that, the mean values were as below: Width of annual rings, 2.61 mm: air dried and …
Mineral Contents Of Different Classes Of Black Tea Produced By Orthodox And Çaykur Methods, Feramuz Özdemi̇r, Ayhan Topuz, Mustafa Erbaş
Mineral Contents Of Different Classes Of Black Tea Produced By Orthodox And Çaykur Methods, Feramuz Özdemi̇r, Ayhan Topuz, Mustafa Erbaş
Turkish Journal of Agriculture and Forestry
Potassium, calcium, phosphor, manganese, magnesium, iron, copper and zinc contents were determined for seven different classes of tea produced by orthodox and Çaykur methods in 3 shooting periods of the 1995 production season. Forty-two (2x3x7) samples were used in the analysis. While the Ca, P, Cu and Zn contents of the samples were affected significantly (p>0.01) by shooting period, method and class, K and Fe contents were affected only by shooting period and class, Mn content was affected only by method and Mg content was affected only by shooting period.
The Business Of Timber Industry, Erdoğan Gavcar, Ümi̇t Sezer Aslan
The Business Of Timber Industry, Erdoğan Gavcar, Ümi̇t Sezer Aslan
Turkish Journal of Agriculture and Forestry
The fact that our forests are decreasing with speed, despite the increasing population, is the couse for the growing problems of the forest products industry sector. The inadequacy to standards and the fact tahat the raw material firewood more efficiently, a study related with its dimensional properties should be made. In this study, meetings were held with timber plants which are active in the forest industry sector in Turkey and of which the annual raw material firewood process capacity is 5000 m^3 and above. As there was no possibility to examine the industry from all aspects, during this meetings, it …
Investigations On The Biology And Ecology Of The Apollo Butterfly, Parnassius Apollo (L.)(Lepidoptera: Papilionidae) In Uludağ ,Bursa, Turkey, Bahatti̇n Kovanci, Ni̇met Sema Gençer, Mehmet Kaya
Investigations On The Biology And Ecology Of The Apollo Butterfly, Parnassius Apollo (L.)(Lepidoptera: Papilionidae) In Uludağ ,Bursa, Turkey, Bahatti̇n Kovanci, Ni̇met Sema Gençer, Mehmet Kaya
Turkish Journal of Agriculture and Forestry
This study was carried out to prevent extinction of Parnassius apollo (L.) population which is one of the emblems of Uludağ with its natural beauty the subspecies of P.apollo in Uludağ is P.apollo graslini Oberthür,1891. In this study conducted at 25±1 C°, 65±5 %R.H. and 16L:8D photoperiod in laboratory conditions as well as in two different areas in Uludağ in 1993-1995 the larval population was observed by weekly counts while the adult population was examined by using the Capture-Mark-Recapture method during the adult flight period. In conclusion, P.apollo overwinters in the egg as a diapausing larva. The larval, prepupal and …
Effects Of Different Harvesting Times On Yield And Quality Of Sorghum Silage (Sorghum Bicolor L.), Sadik Çakmakçi, İrfan Gündüz, M. Ali̇ Tüsüz, Semi̇ha Çeçen, Bi̇lal Aydinoğlu
Effects Of Different Harvesting Times On Yield And Quality Of Sorghum Silage (Sorghum Bicolor L.), Sadik Çakmakçi, İrfan Gündüz, M. Ali̇ Tüsüz, Semi̇ha Çeçen, Bi̇lal Aydinoğlu
Turkish Journal of Agriculture and Forestry
The purpose of this study was to investigate the effects of different harvesting times on yield and quality of sorghum silage. To achieve this aim, the Rox variety of sorghum was planted in randomized complete block design with three replications in two years at the Mediterranean Agricultural Research Institute in Antalya. The plants were harvested during five physiological growth stages. In this study, the effects of different harvesting times on fresh weight, proportion of leaf, stem and panicle, proportions and yields of dry matter, and crude protein, the proportions of leaf, stem and panicle crude protein were determined. The results …
Determination Of The Effects Of Endogenous Plant Hormones On Alternate Bearing And Flower Bud Formation In Olives, Sali̇h Ülger, İbrahi̇m Baktir, Lami̇ Kaynak
Determination Of The Effects Of Endogenous Plant Hormones On Alternate Bearing And Flower Bud Formation In Olives, Sali̇h Ülger, İbrahi̇m Baktir, Lami̇ Kaynak
Turkish Journal of Agriculture and Forestry
The effect of endogenous plant hormones on alternate-bearing, an important factor in olive growing, was investigated. Memecik and Tavşan Türeği olive cultivars were used. Leaf, bud, shoot tip and fruit samples were taken monthly during fruiting and non-fruiting periods for two years. Changes in ABA, GA_3 and IAA were found and the effect of these hormones on the initiation of budding was determined. The results of the experiment showed that there were statistically important significances in the content of ABA, GA_3 and IAA at 5% level. ABA and GA_3 have a direct role in the initiation of flower budding while …
Determination Of Alternaria Brown Spot (Alternaria Alternata F.Sp. Citri) Disease On Minneola Tangelo In Çukurova Region, Ali̇ Erkiliç, Yeter Canihoş, Hülya Pala, Ercan Canihoş, Mehmet Bi̇çi̇ci̇
Determination Of Alternaria Brown Spot (Alternaria Alternata F.Sp. Citri) Disease On Minneola Tangelo In Çukurova Region, Ali̇ Erkiliç, Yeter Canihoş, Hülya Pala, Ercan Canihoş, Mehmet Bi̇çi̇ci̇
Turkish Journal of Agriculture and Forestry
In this study, the incidence and severity of Alternaria brown spot disease (Alternaria alternata f.sp. citri) in the Çukurova region were determined. Thirty-five Minneola tangelo orchards, with a total area of 2497 da, in 24 different locations were surveyed for this purpose. Leaf infections in all orchards were observed in the spring flushing period. Disease severity was found to be 0-10 % in 10 orchards, 11-20 % in 10 orchards, 21-30 % in 7 orchards, 31-40 % in 5 orchards, 42.5 % in 1 orchard and 62.3 % in 1 orchard. However, infections on the summer flushes were higher than …
Monumental Trees And Stands In The Black Sea Region, Altay Uğur Gül, Cantürk Gümüş, Hakki Yavuz, Mahmut Eroğlu, Zafer Cemal Özkan, Ali̇ Demi̇rci̇
Monumental Trees And Stands In The Black Sea Region, Altay Uğur Gül, Cantürk Gümüş, Hakki Yavuz, Mahmut Eroğlu, Zafer Cemal Özkan, Ali̇ Demi̇rci̇
Turkish Journal of Agriculture and Forestry
In this paper, monumental trees and stands in the Black Sea region are described. In this region, 12 monumental trees were identified. Of these, five were Abies nordmanniana (Stev.) Spach. subsp. nordmanniana, three were Fagus oreintalis Lipsky., one was Picea orientalis (L.) Link., one was Carpinus betulus L., one was Platanus orientalis L. and one was Quercus hartwissiana Stev. In addition, two monumental stands consisting of Picea orientalis (L.) and Fagus arientalis Lipsky. were identified.
Determination Of The Alkalinity Of Tokat-Kazova Soils, Kadi̇r Saltali, M. Rifat Deri̇ci̇
Determination Of The Alkalinity Of Tokat-Kazova Soils, Kadi̇r Saltali, M. Rifat Deri̇ci̇
Turkish Journal of Agriculture and Forestry
This research was conducted in order to determine the alkalinity of soils in Kazova and the Kg values which are an indicator of alkalinity. Twenty-four soil profiles were studied for this purpose. None of these profiles exhibited any alkalinity problem for 0-15 cm soil depths (except profile A_3). However, 3 profiles exhibited an alkalinity problem for 15-30 cm, 12 profiles for 30-60 cm, 11 profiles for 60-90 cm, and 6 profiles for 90-120 cm depths. The ESP values calculated for 30-60 cm were highest, followed by those for 60-90, 90-120, 15-30, 0-15 cm in decreasing order. The Gapon Coefficient (Kg), …
Evaluation Of The Greenhouse Tomato Growth Model Tomgro Under Çukurova Protected Cultivation Conditions, Sevi̇lay Topçu, A. Nafi̇ Baytorun
Evaluation Of The Greenhouse Tomato Growth Model Tomgro Under Çukurova Protected Cultivation Conditions, Sevi̇lay Topçu, A. Nafi̇ Baytorun
Turkish Journal of Agriculture and Forestry
In recent years, models of the greenhouse environment and of crops have been used to determine optimal strategies for environment control in regions where new greenhouse industries are developing. In this study, the tomato crop growth model TOMGRO, which was developed to describe the growth and yield of an indeterminate tomato variety under controlled conditions of greenhouse cultivation in Israel, was evaluated under Çukurova conditions. The input parameters for the model were observed from a greenhouse experiment conducted during 1995-1996 growing season. There was good agreement between the simulated and observed number of nodes. The simulated number of leaves and …
The Effects Of Wood Bleaching Chemicals On The Surface Gloss And The Adhesion Strength Of Varnishes, Ayhan Özçi̇fçi̇, Musa Atar, Burhanetti̇n Uysal
The Effects Of Wood Bleaching Chemicals On The Surface Gloss And The Adhesion Strength Of Varnishes, Ayhan Özçi̇fçi̇, Musa Atar, Burhanetti̇n Uysal
Turkish Journal of Agriculture and Forestry
In this research, sodium hydroxide + hydrogen peroxide, sodium hydroxide + calcium hydroxide + hydrogen peroxide, hypochlorite and hydrochloric acid were applied to pine (Pinus sylvestris L), oriental beech (Fagus orientalis Lipsky), ash wood (Fraxinus lanceolata) and oak (Quercus petraea spp.) for bleaching. Next, acrylic, synthetic, polyurethane and acid-catalyzed varnishes aplied on the bleached wood samples. Afterwards, the effects of these bleaches on the surface brightness and the adhession strength of varnishes were studied. The results indicate that the bleaching agents used did not affect surface gloss, whereas the type of wood and varnish did. Acrylic varnish yielded the glossiest …
Dendrochronology Of The Oriental Spruce (Picea Orientalis (L.) Link.) In Turkey, Zafer Cemal Özkan
Dendrochronology Of The Oriental Spruce (Picea Orientalis (L.) Link.) In Turkey, Zafer Cemal Özkan
Turkish Journal of Agriculture and Forestry
This study attempted to describe the variations in the annual growth of Oriental spruce and to give a mean annual ring curve using annual rings. Another purpose was to determine the standardized chronology in the wood of Picea orientalis (L.) Link. As a result the standardized chronology in the wood of Oriental spruce between 1749-1988 was determined.
Callus Development In Embryo Culture Of Wheat, Öznur Karaca, Betül Bürün
Callus Development In Embryo Culture Of Wheat, Öznur Karaca, Betül Bürün
Turkish Journal of Agriculture and Forestry
In this study mature and immature embryos of Doğu-88 wheat variety was cultured for callus development on MS medium supplemented with 4 different substances. Experiment was planned and analysised as factorial design with two replication. Data has been converted with rootsquare transformation. Observations were continued during 42 days. Number oftubes in which callus, shoot and root formation occured, were found after observation. The immature embryos formed the highest callus (average 94 % ) on medium MS containing 2 mg/l 2,4-D + 1 mg/l kinetin. The mature embryos formed the highest callus ( average 95 % ) on MS medium containing …
The Effects Of Planting-Date And Photoperiod On The Growth And Flowering Of Gypsophila Paniculata L. "Perfecta", Osman Karagüzel, Sevi̇l Altan
The Effects Of Planting-Date And Photoperiod On The Growth And Flowering Of Gypsophila Paniculata L. "Perfecta", Osman Karagüzel, Sevi̇l Altan
Turkish Journal of Agriculture and Forestry
This study was carried out to determine the effects of 8 different planting-dates (22 September, 22 October, 22 November, December 22, January 22, February 22, March 22 and April 22) and 4 photoperiods (natural, 14, 15 and 16 hrs) on the growth and flowering of Gypsophila paniculata L. 'Perfecta' under controlled glasshouse conditions at the Alata Horticultural Research Institute (Erdemli, İçel-TURKEY). The times from planting to harvest were longer in autumn and in early winter plantings than in winter and in spring plantings under a 16-hr photoperiod. Suitable planting-dates were, seasonally, September 22 and October 22 in autumn, February 22 …
A Study Of The Propagation Of The Hardwood Cuttings Of Some Rose Hips, Sezai̇ Erci̇şli̇, Muharrem Güleryüz
A Study Of The Propagation Of The Hardwood Cuttings Of Some Rose Hips, Sezai̇ Erci̇şli̇, Muharrem Güleryüz
Turkish Journal of Agriculture and Forestry
In this study, the rooting abilities of hardwood cuttings from ten rose-hip types collected in Gümüşhane in 1994-1995 were evaluated. The cuttings, taken in November, December and January, were planted in a perlit medium under a mist unit. In order to stimulate rooting, IBA doses of 1000, 2000, and 4000 ppm were used. The results showed that type 29-To-16 of Rosa canina had the highest rooting rate (86.25%), while type 29-Ke-27 of Rosa foetida had the lowest (3.33%). According to the average values of all the types, the best dose of IBA was 2000 ppm, and the best rooting time …
A Study Of Some Agronomical Characteristics Of Synthetic Varieties Obtained From Inbred Lines Of Sunflower (Helianthus Annuus L.), Abdurrahi̇m Tanju Göksoy
A Study Of Some Agronomical Characteristics Of Synthetic Varieties Obtained From Inbred Lines Of Sunflower (Helianthus Annuus L.), Abdurrahi̇m Tanju Göksoy
Turkish Journal of Agriculture and Forestry
Some agronomical characteristics of newly improved synthetic sunflower varieties were investigated during the years 1994 and 1995 at Uludağ University, in the Faculty of Agriculture, Field-Crops Department. 12 inbred lines considered suitable for combination were separated into three different mixtures producing the synthetic lines Syn-O(A), Syn-O(B) and Syn-O(C), each containing 4 different inbred lines. Synthetic 1(A), Synthetic-1(B) and Synthetic-1(C) were obtained from open pollination of these 3 mixtures of synthetic lines in the first year of research. In addition, Synthetic-1(D) was formed by open pollination of all the inbred lines (Syn-O(D)). In the second year, four synthetic varieties, four different …
The Effects Of Origin And Regional Differences On The Density Of Douglas Fir [Pseudotsuga Menziesii (Mirb.) Franco] Wood, Nurgül Ay, Yalçin Örs
The Effects Of Origin And Regional Differences On The Density Of Douglas Fir [Pseudotsuga Menziesii (Mirb.) Franco] Wood, Nurgül Ay, Yalçin Örs
Turkish Journal of Agriculture and Forestry
In this study, the effects of origin and regional differences on the density of Douglas Fir [Pseudotsuga menziesii (Mirb.) Franco] wood were investigated. A total of 18 trees of 23 different ages obtained from the Maçka and Tonya regions in two origins were used. Density samples 2x2x3 cm in size were prepared accordance with the standards were used for experiments. The effects of origin and regional differences on density were statistically determined. The results showed that the effects of origin on density in oven-dried and air-dried wood were significant, but those of region were not. Density values for air-dried and …
Fire Reterdant Chemicals Affecting Combustion Resistance Of Wood, Yalçin Örs, Abdullah Sönmez, Burhanetti̇n Uysal
Fire Reterdant Chemicals Affecting Combustion Resistance Of Wood, Yalçin Örs, Abdullah Sönmez, Burhanetti̇n Uysal
Turkish Journal of Agriculture and Forestry
Wood is an important material used in construction elements. However since it can be affected by biotic and abiotic deteriorating agents, it should be treated with chemical impregnating materials prior to use. In this study, the effects of water-soluble impregnating chemicals on the combustion resistance of wood was investigated. For this purpose, panels were prepared with oriental beech wood (Fagus orientalis L.) and pine wood (Pinus silvestris L.), which are widely used in industry. These panels were impregnated with potassium nitrate (KNO_3), zinc sulfate (Zn SO_4), sodium tetra borate (Na_2 B_4 O_7), sodium sulfate (Na_2 SO_4) and copper sulfate (Cu_2SO_4). …
Determination Of Phosphorus Adsorption Using Various Forms Of Isotherms In Soils Of Adıyaman Çamgazi Plain, Necat Ağca, Mehmet Rifat Deri̇ci̇
Determination Of Phosphorus Adsorption Using Various Forms Of Isotherms In Soils Of Adıyaman Çamgazi Plain, Necat Ağca, Mehmet Rifat Deri̇ci̇
Turkish Journal of Agriculture and Forestry
Samples from 8 widespread soil series from Adıyaman Çamgazi Plain were equilibriated at a constant temperature with 16 different solutions containing 0 to 50 \mug/ml phosphorus in batch-type experiments. The phosphorus concentrations of the equilibrium solutions and the amounts of phosphorus adsorbed by the soils at these concentrations were determined. These phosphorus-adsorption data were evaluated statistically for their suitability for adsorption isotherms in various concentration ranges.
Variation In Biomass And Chemical Composition Of Dominant Rangeland Plants During The Growing Season Ii. Changes In Chemical Composition, Adi̇l Bakoğlu, Ahmet Gökkuş, Ali̇ Koç
Variation In Biomass And Chemical Composition Of Dominant Rangeland Plants During The Growing Season Ii. Changes In Chemical Composition, Adi̇l Bakoğlu, Ahmet Gökkuş, Ali̇ Koç
Turkish Journal of Agriculture and Forestry
This study was conducted to determine the annual variations in crude protein, crude cellulose, P, K, Ca and Mg contents, and the ratio of K/(Ca+Mg) of crested wheatgrass, subalpine brome, sheep fescue, junegrass, needlegrass, hybrid alfalfa and cat thyme in Erzurum rangelands, during the 1994 growing season. Crude protein, P, Mg and K contents steadily decreased toward to end of the growth stage although cellulose content increased. Ca content increased until blooming stage in all plants. Plant leaves had richer nutrient contents than the stems in all growing periods. The K/(Ca+Mg) ratio was high at the beginning of the vegetative …
Determination Of Hydraulic Performances Of In-Line Emitters, Bülent Özeki̇ci̇, Sefer Bozkurt
Determination Of Hydraulic Performances Of In-Line Emitters, Bülent Özeki̇ci̇, Sefer Bozkurt
Turkish Journal of Agriculture and Forestry
The efficiency of trickle irrigation systems depends directly on the uniformity with which water is discharged from the emission devices throughout the system. Ideally, all emitters in the system should discharge equal amounts of water. One major cause of flow rate difference between two identical emitters from the same manufacturer is the manufacturing variation. In this study, manufacturers' rated discharges and coefficient of manufacturing variation values were compared with tested values for various in-line emitters. Discharge rates from 12 different types of trickle irrigation emitters were collected at six different operating pressure levels. Pressure compensating emitters were tested at 50, …
Relation Of Root Tensile Strenght To Vertical Root-Pull Resistance And Some Agronomical Characteristics In Maize, Yuhiko Kiyota, Ahmet Can Ülger, Ahmet İnce, Bülent Çakir, İbrahi̇m Akinci, Muzaffer Tezel, Celal Yücel
Relation Of Root Tensile Strenght To Vertical Root-Pull Resistance And Some Agronomical Characteristics In Maize, Yuhiko Kiyota, Ahmet Can Ülger, Ahmet İnce, Bülent Çakir, İbrahi̇m Akinci, Muzaffer Tezel, Celal Yücel
Turkish Journal of Agriculture and Forestry
Examining of root system of maize is quite difficult and it takes a lot of time under field conditions. Because of this, the study abcıut maize reformation on root properties are not enough. Using the new method to determine root magnitude is an important subject for maize breeders in recent years. The value of root pulling resistance that is measured by using computer aided machines, can give some information about root system of plant. In this study, an important variation was obtained between 15 hybrid maize varieties due to the rcıot pulling resistance. The root pulling resistance of genotypes changes …
Investigations On The Changes Of Phenolic Substances During Flower Bud Development In Strawberries, Elmas Özeker, Ali̇ Tanrisever
Investigations On The Changes Of Phenolic Substances During Flower Bud Development In Strawberries, Elmas Özeker, Ali̇ Tanrisever
Turkish Journal of Agriculture and Forestry
The extracts prepared from the samples which were collected weekly intervals betweeen August and December in 1990 and 1992 were analyzed by thin layer chromatography and the changes in phenolic substances during flower bud developmental stages in strawberries were examined. Some differences were determined in terms of phenolic compositions among the developmental stages in the one dimensional chromatograms of young and mature leaves of Pocahontas, Tioga and Yalova-110 strawberry cultivars and these differences were observed during the same periods in all the three years. The 4th week of August, the 2nd week of September and the 4th week of December …
Tensile Resistance Of Dowel With The Pvac And Polymerin From Different Types Wood Or Particle Or Fiberboards, Yalçin Örs, Musa Atar, Ayhan Özçi̇fçi̇
Tensile Resistance Of Dowel With The Pvac And Polymerin From Different Types Wood Or Particle Or Fiberboards, Yalçin Örs, Musa Atar, Ayhan Özçi̇fçi̇
Turkish Journal of Agriculture and Forestry
This study was performed to determine the connections resistance with dowel of some beech wood materials and board types used in furniture industry, which are bonded by polyvinyl acetat (PVAc) and polyurethane based (Desmodur-VTKA) glues. For this purpose, the tensile resistance was made with wood materials; scotch pine (Pinus silvestris L), oriental beech (Fagus orientalis lipsky) and oak (Quercus petraea spp.) using cross and radial section with polyurethane based glue, edges of particle or fiber boards processed and unprocessed with beech wood, polyvinyl acetate (PVAc) glue. At the result of experiments, it was obtained the highest tensile resistance, by cross …
A Research On The Analysis Of Heterotic Effects For Certain Agronomical Characters In Cross Population Of Sunflower (Helianthus Annuus L.), Abdurrahi̇m Tanju Göksoy, Aydin Türkeç, Zeki̇ Meti̇n Turan
A Research On The Analysis Of Heterotic Effects For Certain Agronomical Characters In Cross Population Of Sunflower (Helianthus Annuus L.), Abdurrahi̇m Tanju Göksoy, Aydin Türkeç, Zeki̇ Meti̇n Turan
Turkish Journal of Agriculture and Forestry
This research was carried out to determine the hybrid vigour (heterosis) for certain agronomical characteristics in the new - improved hybrid combinations in sunflower, during the years 1994 - 1995 at the Experimental and Research Centre of Faculty of Agriculture, Uludağ University. In the first year of this research, 7 CMS (female) lines and 4 Restorer (male) testers were crossed in all the possible combinations and 28 F_1 hybrids were obtained. In the second years, 28 F_1 hybirds, 11 parents and a standard variety (a commercial hybrid variety) were tested in a randomized block desing with three replications. According to …
Structural Relations Between Cotton Production And The Textile Industry In The Southeastern Anatolia Project (Gap) Region, Haydar Şengül, Onur Erkan
Structural Relations Between Cotton Production And The Textile Industry In The Southeastern Anatolia Project (Gap) Region, Haydar Şengül, Onur Erkan
Turkish Journal of Agriculture and Forestry
The structure and structural interdependency of the cotton and textile industries were analyzed using an input-output model in the Southeastern Anatolia Project (GAP) Region. GAP is the most comprehensive integrated regional development project ever carried out in Turkey. Data were obtained from surveys of 72 cotton farms and 103 textile companies. In the GAP Region, gross value added as a percentage of gross output was found to be 85 % for the cotton, 38 % for the ready-made, 35% for the spinning 34 % for the weaving and 25 % for the ginning sectors. As an indicator of labour productivity, …
Determination Of Crop Water Stress Index (Cwsi) And Irrigation Timing By Utilizing Infraredthermometer Values On The First Corn Grown Under Çukurova Conditions, Cafer Gençoğlan, Attila Yazar
Determination Of Crop Water Stress Index (Cwsi) And Irrigation Timing By Utilizing Infraredthermometer Values On The First Corn Grown Under Çukurova Conditions, Cafer Gençoğlan, Attila Yazar
Turkish Journal of Agriculture and Forestry
This study was carried out to determine crop water stress index (CWSI) using the infrared thermometer data; to estimate irrigation time from this index and to obtain yield-CWSI relationships for maize under Çukurova Region conditions. In this research, irrigation water levels were 100% (I 100 ), 80% (I 80 ), 60% (I 60 ), 40% (I 40 ), 20% (I 20 ) and 0% (I 0 ) of water depleted in the 120 cm soil profile in every ten days, so different level of water stress treatments were created. A total of 752 mm and 823 mm of irrigation water …
The Erosion In The Firat Valley And The Well Growing Plants In Erosion Area, Yusuf Kaya
The Erosion In The Firat Valley And The Well Growing Plants In Erosion Area, Yusuf Kaya
Turkish Journal of Agriculture and Forestry
In this study, the erosion area in Firat Valley has been determined. To determine the well growing plants in erosion area, the representative quadrates have been taken. In these quadrates 115 species belonging to 33 families have been determined. The families containing the most species in the research area were Asteraceae, Lamiaceae and Poaceae, respectively. Of the determined species were 46.9% hemicriptophytes, 18.3% phanerophytes, 15.7% therophytes, 12.2% chamaephytes and 6.9% geophytes. It was observed that the well growing plants in the research area were Quercus robur subps. pedunculiflora, Q. trajana, Q. macranthera subsp. syspirensis, Q petraea subsp. pinnatiloba, Q. brantii, …
The Relationships Among Grain Yield And Some Yield Components In Tir Wheat, Fahri Sönmez, Mehmet Ülker, Nuri Yilmaz, Hatice Ege, Betül Bürün, Rüstem Apak
The Relationships Among Grain Yield And Some Yield Components In Tir Wheat, Fahri Sönmez, Mehmet Ülker, Nuri Yilmaz, Hatice Ege, Betül Bürün, Rüstem Apak
Turkish Journal of Agriculture and Forestry
Field experiments were conducted in 1994 and 1995 in Van in order to study the relationships between grain yield and yield componets, and the interrelationships among these yield components and other characteristics in Tir wheat. In this research, heading duration, the number of spikes per m 2 , grain filling period, the number of grain per spike, grain weight, and grain yield were studied. Direct and indirect effects of the yield components (the number of spikes per m 2 , the number of grain per spike, and grain weight) on grain yield were found by Path coefficient analysis. Direct and …