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Comparing The Performances Of Real-Time Kinematic Gps And A Handheld Gps Receiver Under Forest Cover, Hayati̇ Zengi̇n, Ahmet Yeşi̇l
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 …
The Effect Of Tying And Wrapping Materials And Their Color On Budding Success In Kiwifruit, Hamdi̇ Zengi̇nbal, Hüseyi̇n Çeli̇k, Muharrem Özcan
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 …
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
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 …
Multiple Criteria Activity Selection For Ecotourism Planning In Igneada, Kenan Ok
Multiple Criteria Activity Selection For Ecotourism Planning In Igneada, Kenan Ok
Turkish Journal of Agriculture and Forestry
Forests have many ecotourism attractions. Ecotourism can be defined as an opportunity to promote the values in the protected areas and to finance for related stakeholders. However, ecotourism can be classified as a possible threat to ecosystems because of ecotourism's attractions are based on fragile ecological relations. Activity selection regarding ecological, social and economic dimensions is important in forest and tourism management. Ecotourism activities were selected using a multi-criteria decision model based on an ELECTRE method. The model that was applied with a participatory approach consists of 19 alternates and 28 criteria. While horse-riding was determined to be the best …
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
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 …
Saturated Hydraulic Conductivity Variation In Cultivated And Virgin Soils, Teki̇n Özteki̇n, Sabi̇t Erşahi̇n
Saturated Hydraulic Conductivity Variation In Cultivated And Virgin Soils, Teki̇n Özteki̇n, Sabi̇t Erşahi̇n
Turkish Journal of Agriculture and Forestry
Variation of saturated hydraulic conductivity (K_s) values of soils under diverse management practices may be needed to determine the required sample number, sample size, and chose suitable sample scheme for characterize the K_s values used in water flow and solute transport modelling studies. The purpose of this study was to examine the variability in K_s and try to understand some part of the determinism of this variability in virgin and adjacent cultivated field using 36 undisturbed soil samples from each location with 0.5-m grid space. K_s was measured with 100 cm^3 undisturbed soil cores in laboratory using falling or constant …
Comparison Of Different Irrigation Methods Based On The Parametric Evaluation Approach, Orhan Dengi̇z
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 …
Effects Of Inoculation With Rhizobium On Seed Yield And Yield Components Of Common Vetch (Vicia Sativa L.), Sebahatti̇n Albayrak, Cafer Sirri Sevi̇may, Özgür Töngel
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 …
Genotypic Variation In Tolerance To Boron Toxicity In 70 Durum Wheat Genotypes, Ayfer A. Torun, Ati̇lla Yazici, Hali̇l Erdem, İsmai̇l Çakmak
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 …
Developing Alternative Wood Harvesting Strategies With Linear Programming In Preparing Forest Management Plans, Emi̇n Zeki̇ Başkent, Sedat Keleş
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.
Effects Of Nacl On The Germination, Seedling Growth And Water Uptake Of Triticale, Mehmet Atak, Mehmet Demi̇r Kaya, Gamze Kaya, Yakup Çikili, Cemaletti̇n Yaşar Çi̇ftçi̇
Effects Of Nacl On The Germination, Seedling Growth And Water Uptake Of Triticale, Mehmet Atak, Mehmet Demi̇r Kaya, Gamze Kaya, Yakup Çikili, Cemaletti̇n Yaşar Çi̇ftçi̇
Turkish Journal of Agriculture and Forestry
The lack of information about the effects of salinity on vegetative growth of triticale prompted us to study the salt tolerance levels of 3 newly registered cultivars, Karma-2000, Presto, and Tatlıcak-97. Moreover, the relative importance of the osmotic or toxic effects of NaCl on seed germination are not clear in triticale. In this study, germination percentage, seedling fresh and dry weight and water uptake of the seeds of 3 triticale cultivars were determined under various salt (NaCl) stresses with electrical conductivities of 2.4, 4.2, 5.9, 7.7, 10.6 and 13.2 dS m^{-1}. Roots and shoots were analyzed for uptake of Na^+ …
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
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 …
Microbiological And Chemical Changes Throughout The Manufacture And Ripening Of Kashar: A Traditional Turkish Cheese, Fi̇gen Çeti̇nkaya, G. Ece Soyutemi̇z
Microbiological And Chemical Changes Throughout The Manufacture And Ripening Of Kashar: A Traditional Turkish Cheese, Fi̇gen Çeti̇nkaya, G. Ece Soyutemi̇z
Turkish Journal of Veterinary & Animal Sciences
This study was performed to investigate the microbiological and chemical characteristics of Kashar cheese produced from raw milk according to traditional techniques. The counts of total aerobic bacteria, lactic acid bacteria (LAB) on MRS and M17 agar, psychrotroph organisms, yeast and molds, coliforms and the presence of Escherichia coli were determined during the manufacturing stages and ripening. The chemical properties determined were dry matter, fat in dry matter, pH and salt content. The stretching process, which appears to be the main method of destroying microorganisms, did not efficiently eliminate all the microorganisms but was sufficient to destroy E. coli that …
Prey Selection By African Catfish Clarias Gariepinus (Burchell, 1822) Larvae Fed Different Feeding Regimes, Erdal Yilmaz, Ahmet Bozkurt, Kaya Gökçek
Prey Selection By African Catfish Clarias Gariepinus (Burchell, 1822) Larvae Fed Different Feeding Regimes, Erdal Yilmaz, Ahmet Bozkurt, Kaya Gökçek
Turkish Journal of Zoology
Live prey selection by African catfish, Clarias gariepinus, larvae was examined under laboratory conditions. Larvae were offered plankton, plankton + trout starter (TS) and plankton + betaine supplemented trout diet (BTS) for 7 days after exogenous feeding. Five larvae were sampled to determine their gut contents and selectivity index for each treatment 15 min after the feeding. It was observed that dry diets (TS and BTS) improved the growth (P < 0.05), but did not significantly influence the prey selection of the larvae. It was determined that African catfish larvae preferred Copepods and Rotaria sp. to other zooplankton species for all feeding regimes.
New Torrenticola Piersig (Acari: Hydrachnidia: Torrenticolidae) Species For The Turkish Fauna, Vladimir Pesic, Orhan Erman, Yunus Esen
New Torrenticola Piersig (Acari: Hydrachnidia: Torrenticolidae) Species For The Turkish Fauna, Vladimir Pesic, Orhan Erman, Yunus Esen
Turkish Journal of Zoology
In this study, the morphological characteristics, measurements, habitats and distribution of Torrenticola nana Di Sabatino & Gerecke, 2003 and Torrenticola jasminae Bader, 1988, which are new records for the Turkish fauna, are presented.
The Seroprevalence Of Bovine Herpes Virus Type 1 (Bhv-1) And Bovine Leukemia Virus (Blv) In Selected Dairy Cattle Herds In Aydın Province, Turkey, Mehmet Tolga Tan, Yakup Yildirim, Nural Erol, A. Burak Güngör
The Seroprevalence Of Bovine Herpes Virus Type 1 (Bhv-1) And Bovine Leukemia Virus (Blv) In Selected Dairy Cattle Herds In Aydın Province, Turkey, Mehmet Tolga Tan, Yakup Yildirim, Nural Erol, A. Burak Güngör
Turkish Journal of Veterinary & Animal Sciences
The prevalence of BHV-1 and BLV antibodies was studied in 313 serum samples collected from 5 dairy cattle herds. Serum samples were collected from both apparently healthy animals and animals with respiratory symptoms. The samples were tested for the presence of antibodies against BHV-1 and BLV using virus neutralization and agar gel immunodiffusion test, respectively. The results indicated that the prevalence of BHV-1 and BLV infections was 19.5% and 0.3%, respectively.
Daily Microgrowth Increments In Otoliths Of Common Dentex (Dentex Dentex Linneaus, 1758) Larvae Reared In Culture Conditions, Gülnur Meti̇n, Şahi̇n Saka, Kürşat Firat, Deni̇z Çoban
Daily Microgrowth Increments In Otoliths Of Common Dentex (Dentex Dentex Linneaus, 1758) Larvae Reared In Culture Conditions, Gülnur Meti̇n, Şahi̇n Saka, Kürşat Firat, Deni̇z Çoban
Turkish Journal of Veterinary & Animal Sciences
Daily microgrowth was determined in the otoliths of common dentex (Dentex dentex, Linneaus, 1758) larvae reared in 24 h illumination culture conditions. Microgrowth in otoliths was measured from the first mouth-opening stage of larvae on day 3 to the end of the larval stage on day 32. The sagitta and lapillus were present and were equal in size in newly hatched larvae, but the sagitta grew faster than the lapillus during further larval development. The first size increments in otoliths were observed at 4.25-4.99 mm total length of larvae (day 11). Structural development of the rostrum edge occurred on the …
Biological Properties Of Chloro-Salicylidene Aniline And Its Complexes With Co(Ii) And Cu(Ii), Javed Iqbal, Syed Ahmad Tirmizi, Feroza Hamid Wattoo, Muhammad Imran, Muhammad H. Sarwar Wattoo, Shahida Sharfuddin, Shoomaila Latif
Biological Properties Of Chloro-Salicylidene Aniline And Its Complexes With Co(Ii) And Cu(Ii), Javed Iqbal, Syed Ahmad Tirmizi, Feroza Hamid Wattoo, Muhammad Imran, Muhammad H. Sarwar Wattoo, Shahida Sharfuddin, Shoomaila Latif
Turkish Journal of Biology
New complexes of chloro-salicylidene aniline with Co(II) and Cu(II) were synthesised and screened for antibacterial activity against several bacterial strains, namely Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. The metal complexes showed enhanced antibacterial activity compared to uncomplexed ligands.
Effect Of Gibberellic Acid Spray On Performance Of Tomato, M.Masroor A. Khan, Champa Gautam, Firoz Mohammad, Manzer H. Siddiqui, M. Naeem, M. Nasir Khan
Effect Of Gibberellic Acid Spray On Performance Of Tomato, M.Masroor A. Khan, Champa Gautam, Firoz Mohammad, Manzer H. Siddiqui, M. Naeem, M. Nasir Khan
Turkish Journal of Biology
A pot experiment was performed according to a factorial randomized design at Aligarh to study the effect of 4 levels of gibberellic acid spray (0, 10-8, 10-6 and 10-4 M GA3) on the growth, leaf-NPK content, yield and quality parameters of 2 tomato cultivars (Lycopersicon esculentum Mill.), namely Hyb-SC-3 and Hyb-Himalata. Irrespective of its concentration, spray of gibberellic acid proved beneficial for most parameters, especially in the case of Hyb-SC-3.
Food Restriction Affects Locomotor Activity In Mongolian Gerbils (Meriones Unguiculatus), Alper Karakaş, Erdi̇nç Seri̇n, Bülent Gündüz
Food Restriction Affects Locomotor Activity In Mongolian Gerbils (Meriones Unguiculatus), Alper Karakaş, Erdi̇nç Seri̇n, Bülent Gündüz
Turkish Journal of Biology
The circadian rhythm of the locomotor activity is regulated by at least 2 external pacemakers, environmental photoperiod and food availability. In the present study, the effects of short-term (2 weeks) food restriction on locomotor activity rhythm in adult male and female Mongolian gerbils were investigated. Animals were fed ad libitum with no restriction during the first week of the experiment and their daily ad libitum food consumptions were determined. Then the food was restricted 40% of ad libitum for the next 2 weeks. At constant temperature, locomotor activity was monitored by running wheel in animals exposed to a long photoperiod …
Colchicine-Induced Tetraploidy And Changes In Allele Frequencies In Colchicine-Treated Populations Of Diploids Assessed With Rapd Markers In Gossypium Arboreum L., Saeed Rauf, Iftikhar Ahmad Khan, Faroog Ahmad Khan
Colchicine-Induced Tetraploidy And Changes In Allele Frequencies In Colchicine-Treated Populations Of Diploids Assessed With Rapd Markers In Gossypium Arboreum L., Saeed Rauf, Iftikhar Ahmad Khan, Faroog Ahmad Khan
Turkish Journal of Biology
Two cultivars of cotton G. arboreum L. cv. FDH-228 and HK-113 were treated with colchicine solution (1%) with 3 methods of application. Colchicine application at the seedling stage on shoot apex was successful. Tetraploid plants of arboreum (4x = 2n = 52) had larger vegetative, reproductive parts, but less frequent stomata and higher optical density of DNA than their normal diploid counterparts (2n = 26). Results also showed that individuals that escaped the duplicating effects of colchicine although treated, presented significant point mutagenic effects. Randomly Amplified Polymorphic DNA markers were used to evaluate diversity and similarities in populations treated with …
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
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 …
The Efficacy Of Spinosad On Different Strains Of Spodoptera Littoralis (Boisduval) (Lepidoptera: Noctuidae), Hi̇lal Aydin, M. Oktay Gürkan
The Efficacy Of Spinosad On Different Strains Of Spodoptera Littoralis (Boisduval) (Lepidoptera: Noctuidae), Hi̇lal Aydin, M. Oktay Gürkan
Turkish Journal of Biology
The cotton leafworm, Spodoptera littoralis (Boisduval), was collected from commercial cotton production fields in Adana, Turkey, and tested for susceptibility to the insecticide spinosad. The susceptibility of the field strain was also compared to the susceptible strain (S) of S. littoralis. Lethal dose bioassays were performed with third instar larvae using the leaf dip method. The LC50 values for field and susceptible strains were 43.691 and 10.037 ppm, respectively. When LC50 values and 95% confidence intervals were compared with a susceptible laboratory reference strain, the field strain was approximately 4.4-fold less sensitive than the susceptible strain. The present study suggests …
Use Of Corine Methodology To Assess Soil Erosion Risk In The Semi-Arid Area Of Beypazari, Ankara, İlhami̇ Bayrami̇n, Günay Erpul, Hakki Emrah Erdoğan
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 …
Integrated Weed Control In Sugar Beet Through Combinations Of Tractor Hoeing And Reduced Dosages Of A Herbicide Mixture, Riza Kaya, Şevki̇ Buzluk
Integrated Weed Control In Sugar Beet Through Combinations Of Tractor Hoeing And Reduced Dosages Of A Herbicide Mixture, Riza Kaya, Şevki̇ Buzluk
Turkish Journal of Agriculture and Forestry
Weed control is performed by hand in 83% of the sugar beet growing area in Turkey. Due to the movement of the labour force to industry recently, the lack of labour has led to a huge problem. Therefore, the completely mechanised alternative methods must be introduced into the weed control of sugar beet. In this study, the effects of alternative control methods, based on the use of a tractor hoe combined with post-emergence reduced herbicide dosages, on weeds and on the yield and quality of sugar beet were investigated. Our data indicated that tractor hoeing twice + thinning (96.2%) resulted …
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 …
Gge-Biplot Analysis Of Multi-Environment Yield Trials In Bread Wheat, Yüksel Kaya, Mevlüt Akçura, Seyfi̇ Taner
Gge-Biplot Analysis Of Multi-Environment Yield Trials In Bread Wheat, Yüksel Kaya, Mevlüt Akçura, Seyfi̇ Taner
Turkish Journal of Agriculture and Forestry
Yield data of 25 bread wheat genotypes tested across 9 rain-fed environments during the 2002-2003 growing season were analyzed using the GGE (i.e. G, genotype + GEI, genotype-by-environment interaction) biplot method. E (environment) explained 81% of the total (G + E + GE) variation, whereas G and GEI captured 7.3% and 11.7%, respectively. The first 2 principal components (PC1 and PC2) were used to create a 2-dimensional GGE-biplot and explained 46.2% and 15.8% of GGE sum of squares (SS), respectively. Genotypic PC1 scores >0 detected the adaptable and/or higher-yielding genotypes, while PC1 scores
Inheritance Of Grain Yield Per Plant, Flag Leaf Width, And Length In An 8 X 8 Diallel Cross Population Of Bread Wheat (T. Aestivum L.), Şahi̇n Dere, Meti̇n Bi̇rkan Yildirim
Inheritance Of Grain Yield Per Plant, Flag Leaf Width, And Length In An 8 X 8 Diallel Cross Population Of Bread Wheat (T. Aestivum L.), Şahi̇n Dere, Meti̇n Bi̇rkan Yildirim
Turkish Journal of Agriculture and Forestry
The inheritance of grain yield per plant, flag leaf width, and flag leaf length was studied applying Jinks-Hayman diallel analysis in an 8 x 8 wheat cross population involving the bread wheat (T. aestivum L.) genotypes Cumhuriyet, Kaşifbey, Ziyabey, Marmara, Basribey, Malabadi, Yüreğir, and Seri-82. The crosses were made by hand, without reciprocals, in field conditions from March to May 2001, and the field experiment was conducted during the October 2002 to June 2003 growing season. The analysis of data showed that the additive variance component (D) was significant for flag leaf width (P < 0.01). The dominance variance component (H_1) was significant for flag leaf width and grain yield per plant. The dominance level variance component (h^2) and corrected dominance variance component (H_2) were significant for all 3 traits studied (P < 0.01). The Wr/Vr graphs indicated overdominance for grain yield per plant and flag leaf width, while partial dominance was inferred for flag leaf length. Flag leaf length was significantly and positively correlated with flag leaf width (r = 0.803). Yüreğir x Malabadi crosses should be considered for maximizing photosynthetic area of the leaf.
Salt Tolerance Of Pepper Cultivars During Germination And Seedling Growth, Ertan Yildirim, İsmai̇l Güvenç
Salt Tolerance Of Pepper Cultivars During Germination And Seedling Growth, Ertan Yildirim, İsmai̇l Güvenç
Turkish Journal of Agriculture and Forestry
This study was conducted to evaluate the effect of salinity on the germination and emergence of pepper cultivars, and to investigate the potential for genetic salt tolerance during germination and seedling growth. Thus, seeds of 11 pepper cultivars were germinated using 0, 85, 170, and 215 mM NaCl solutions for 14 days. Germination percentage decreased with increased NaCl concentration. All cultivars germinated in all salinities, with the exception of Kandil Dolma in 215 mM NaCl. The greatest germination percentage at 215 mM of NaCl was 71% for 11-B-14. NaCl salinity at different concentrations adversely affected germination rates of the 11 …
Clonal Selection Of A Winter-Type European Pear Cultivar 'Ankara' (Pyrus Communis L.), Hati̇ce Dumanoğlu, Nurdan Tuna Güneş, Veli̇ Erdoğan, Ahmet Aygün, Beki̇r Şan
Clonal Selection Of A Winter-Type European Pear Cultivar 'Ankara' (Pyrus Communis L.), Hati̇ce Dumanoğlu, Nurdan Tuna Güneş, Veli̇ Erdoğan, Ahmet Aygün, Beki̇r Şan
Turkish Journal of Agriculture and Forestry
Clones of the 'Ankara' pear (Pyrus communis L.) cultivar, which is a winter-type of European pear, were investigated in terms of morphological and chemical characteristics, and sensory analyses, in the Ankara (Turkey) region in 2001, 2002, and 2003. Fruit weight, length, and diameter; core diameter; skin and flesh color; flesh firmness; soluble solids content; titrable acidity; pH; grittiness; melting degree in the mouth (buttery flesh); flavor; texture; and appearance were determined in 40, 17, and 26 clones in 2001, 2002, and 2003, respectively. Two clones #5 and #6, were selected as superior clones of 'Ankara' pear in 16 clones, which …