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Full-Text Articles in Agriculture

Section Abstracts: Agriculture, Forestry And Aquaculture Science Jul 2009

Section Abstracts: Agriculture, Forestry And Aquaculture Science

Virginia Journal of Science

Abstracts of the Agriculture, Forestry and Aquaculture Section for the 87th Annual Meeting of the Virginia Academy of Science, May 27-29, 2009, Virginia Commonwealth University, Richmond, VA.


Evaluation Of A Low-Cost Gps Receiver For Precision Agriculture Use In Adana Province Of Turkey, Muharrem Keski̇n, Sai̇t Muharrem Say, Serap Görücü Keski̇n Jan 2009

Evaluation Of A Low-Cost Gps Receiver For Precision Agriculture Use In Adana Province Of Turkey, Muharrem Keski̇n, Sai̇t Muharrem Say, Serap Görücü Keski̇n

Turkish Journal of Agriculture and Forestry

The most vital factor in the application of precision agriculture technology is the cost of the required high-technology equipment. The equipment cost is the major obstacle in adopting the precision agriculture. GPS receiver is one of the most essential tools with high initial costs in this technology. The aim of this study was to evaluate a low-cost GPS receiver in 3 different tests including static, dynamic circular area, and dynamic straight line tests. It was observed that the tested low-cost GPS receiver yielded a deviation of less than 1.50 m, 1.60 m, and 1.48 m in static, circular area, and …


Woods Of A Miocene Petrified Forest Near Ankara, Turkey, Ünal Akkemi̇k, Necla Türkoğlu, Imogen Poole, İhsan Çi̇çek, Nesi̇be Köse, Gürcan Gürgen Jan 2009

Woods Of A Miocene Petrified Forest Near Ankara, Turkey, Ünal Akkemi̇k, Necla Türkoğlu, Imogen Poole, İhsan Çi̇çek, Nesi̇be Köse, Gürcan Gürgen

Turkish Journal of Agriculture and Forestry

The taxonomic composition of a recently discovered silicified fossil forest, preserved by volcanic activity 18.2-16.9 million years ago in Çamlıdere near Ankara (Turkey), is investigated. Many samples collected were divided into 2 groups as CAM1 and CAM2. Thin sections from transversal, radial, and tangential directions were cut to identify the woods. Wood identifications were performed using standard techniques and fossil wood features. The preserved wood indicates that the forest was composed almost exclusively of Taxodium (CAM1) and Sequoia (CAM2). These genera were extinct from Anatolia and Europe during late Miocene.


Effect Of Superparasitism On The Development Of The Solitary Parasitoid Chelonus Oculator Panzer (Hymenoptera: Braconidae), Hi̇lal Tunca, Neşet Kilinçer Jan 2009

Effect Of Superparasitism On The Development Of The Solitary Parasitoid Chelonus Oculator Panzer (Hymenoptera: Braconidae), Hi̇lal Tunca, Neşet Kilinçer

Turkish Journal of Agriculture and Forestry

The egg-larval parasitoid Chelonus oculator Panzer (Hymenoptera: Braconidae) is a solitary endoparasitoid. The effect of superparasitism on the development of C. oculator was investigated on a host, Cadra cautella Walker (Lepidoptera : Pyralidae) at 25 °C, 60%-70% R.H., and 16:8 h (L:D) photoperiod. The development time of C. oculator from egg to adult was related to parasitism level from 42.5 ± 0.19 days under single parasitism to 48.4 ± 0.57 days under triple parasitism. The emergence rate of the parasitoid decreased as the parasitism level increased. In addition, the dry mass of adult parasitoid was significantly affected by the superparasitism. …


Detection Of Some Woody Plants In Late Oligocene Forests Of İstanbul, Nurgül Karlioğlu, Ünal Akkemi̇k, Hülya Caner Jan 2009

Detection Of Some Woody Plants In Late Oligocene Forests Of İstanbul, Nurgül Karlioğlu, Ünal Akkemi̇k, Hülya Caner

Turkish Journal of Agriculture and Forestry

A paleopalynological study was performed on the fossilized pollen found in the coal and clay layers of the Akçelik Coalmine, which is one of the open lignite quarries located at the northern part of İstanbul, and 15 genera belonging to 14 families were identified from the late Oligocene of İstanbul. Of these 14 families, 4 families belong to Gymnospermae, and 10 of them belong to Angiospermae. In the study, 85.8% of pollen is arboreal (AP) (woody plants), 10.4% is non-arboreal (NAP) (herbal plants), and rest of them (3.8%) could not be identified. The middle coal layer has a significant number …


Development Of A Computerized Measurement System For In-Row Seed Spacing Accuracy, Okan Önal, İsmet Önal Jan 2009

Development Of A Computerized Measurement System For In-Row Seed Spacing Accuracy, Okan Önal, İsmet Önal

Turkish Journal of Agriculture and Forestry

The aim of this study was to develop a computerized measurement system (CMS) combined with a sticky belt test stand for examining in-row seed spacing distribution accuracy. For this purpose 8 performance parameters were selected for precision seeding: mean seed spacing, the standard deviation, the multiples index, the miss index, the quality of feed index, the precision, the population index, and the coefficient of precision (CP-3). The CMS hardware consisted of a high precision optical mouse coupled with a laser pointer and a notebook computer. The use of optical laser technology is a new method for the determination of seed …


Soybean Seed Yield Performances Under Different Cultural Practices, Mehmet Si̇nci̇k, Abdurrahi̇m Tanju Göksoy, Zeki̇ Meti̇n Turan Jan 2009

Soybean Seed Yield Performances Under Different Cultural Practices, Mehmet Si̇nci̇k, Abdurrahi̇m Tanju Göksoy, Zeki̇ Meti̇n Turan

Turkish Journal of Agriculture and Forestry

This study was carried out to investigate the yield response of 2 soybean (Glycine max (L.) Merrill) cultivars to different planting dates and plant populations and to examine the relationships of seed yield with leaf area index (LAI) and total dry matter (TDM) during the vegetative and reproductive periods for planting dates, plant populations, and cultivars. Two soybean cultivars, A-3127 (early maturity group, MG-III) and 1530 (late maturity group, MG-IV), were planted in 2 planting dates; mid-April and mid-May during 2005 and 2006 at high (660,000 plant ha^{-1}) and low (330,000 plant ha^{-1}) plant populations. Plantings in mid-April increased seed …


Interpretation Of Genotype-By-Environment Interaction For Late Maize Hybrids’ Grain Yield Using A Biplot Method, Hamid Dehghani, Naser Sabaghnia, Mohammad Moghaddam Jan 2009

Interpretation Of Genotype-By-Environment Interaction For Late Maize Hybrids’ Grain Yield Using A Biplot Method, Hamid Dehghani, Naser Sabaghnia, Mohammad Moghaddam

Turkish Journal of Agriculture and Forestry

The stability of grain yield of 11 late maize hybrids with a check cultivar were studied in a randomized complete block design with 4 replications for 2 years at 11 sites in multi-environment trials in Iran. The obtained data were analyzed with a GGE [genotype + (genotype × environment interaction)] biplot method. The first 2 principal components (PC1 and PC2) were used to create a 2-dimensional GGEbiplot and explained 44% and 27% of GGE sum of squares (SS), respectively. Ranking of the genotypes based on the ideal genotype revealed that grain yields of G2, G3, and G12 were higher together …


Regeneration And Histological Analysis Of Regeneration In Bottle Gourd (Lagenaria Siceraria (Molina) Stand.), Yeşi̇m Yalçin Mendi̇, Muzaffer İpek, Ni̇hal Buzkan, Yildiz Aka Kaçar, Sebahatti̇n Çürük Jan 2009

Regeneration And Histological Analysis Of Regeneration In Bottle Gourd (Lagenaria Siceraria (Molina) Stand.), Yeşi̇m Yalçin Mendi̇, Muzaffer İpek, Ni̇hal Buzkan, Yildiz Aka Kaçar, Sebahatti̇n Çürük

Turkish Journal of Agriculture and Forestry

Two different types of explant (proximal and flamingo-bill) from Emphasis seedlings, a hybrid cultivar of bottle gourd (Lagenaria siceraria (Molina) Stand.), germinated under dark and light conditions were cultured on 9 regeneration MS media containing various combinations of BA (0, 1.0, and 2.0 mg l^{-1}) and IAA (0, 0.25, and 0.5 mg l^{-1}). Comparison of the explant types showed that the flamingo-bill type explant had better shoot formation than did the proximal explant. The MS medium containing 1 mg l^{-1} of BA was optimal for shoot formation capacity when flamingo-bill type explants germinated in the dark (44%) and light (36%) …


The Effects Of Bio-Priming With Pgpr On Germination Of Radish (Raphanus Sativus L.) Seeds Under Saline Conditions, Haluk Çağlar Kaymak, İsmai̇l Güvenç, Fai̇ka Yarali, Mesude Fi̇gen Dönmez Jan 2009

The Effects Of Bio-Priming With Pgpr On Germination Of Radish (Raphanus Sativus L.) Seeds Under Saline Conditions, Haluk Çağlar Kaymak, İsmai̇l Güvenç, Fai̇ka Yarali, Mesude Fi̇gen Dönmez

Turkish Journal of Agriculture and Forestry

The present study was conducted to examine the effects of bio-priming with plant growth promoting rhizobacteria (PGPR) on the germination of radish (Raphanus sativus L.) seeds under different saline (NaCl) conditions. Three radish cultivars ('Antep', 'Beyaz', and 'Siyah') were used as plant material and 5 bacteria strains (Agrobacterium rubi strain A 16, Burkholderia gladii strain BA 7, Pseudomonas putida strain BA 8, Bacillus subtilis strain BA 142, and Bacillus megaterium strain M 3) were applied as priming agent. The effect of bio-priming with PGPR on germination percentage under saline conditions varied with bacteria strains and cultivars. Applications of bio-priming with …


Investigations On The Pollen Morphology Of Some Fruit Species, Yasemi̇n Evrenosoğlu, Adalet Misirli Jan 2009

Investigations On The Pollen Morphology Of Some Fruit Species, Yasemi̇n Evrenosoğlu, Adalet Misirli

Turkish Journal of Agriculture and Forestry

Morphological characters are used to identify plant material. Pollen morphology is an important parameter. This is of great importance in detailed investigations by scanning electron microscope (SEM). In order to develop a plant material identification tool, this research was carried out to determine the pollen morphology of some fruit species using SEM on apple, pear, quince, apricot, plum, peach, almond, chestnut, walnut, pomegranate, and persimmon cultivars. The surface features, as well as length, width, and P/E ratio of pollen were observed. Pollen length and width changed with investigated species and cultivars; the longest and widest pollen grains were detected in …


Determination Of The Head Losses In Metal Body Disc Filters Used In Drip Irrigation Systems, Vedat Demi̇r, Hüseyi̇n Yürdem, Arzu Yazgi, Adnan Deği̇rmenci̇oğlu Jan 2009

Determination Of The Head Losses In Metal Body Disc Filters Used In Drip Irrigation Systems, Vedat Demi̇r, Hüseyi̇n Yürdem, Arzu Yazgi, Adnan Deği̇rmenci̇oğlu

Turkish Journal of Agriculture and Forestry

The objective of this study was to determine the head losses in several type metal body disc filters manufactured by domestic companies. In order to meet the objective, three different filter designs (L, LT and Y type), each at four different inlet and outlet pipe diameters, were used to measure the head losses at different flow rates in the laboratory. A total of sixteen filters manufactured by three domestic companies (A, B and C) and two different disc elements (linear and curly) were taken into consideration in this study. A comparison of the different filter designs in terms of measured …


Effects Of Different Irrigation Programs On The Growth, Yield, And Fruit Quality Of Drip-Irrigated Melon, Osman Yildirim, Ni̇lgün Halloran, Şeyda Çavuşoğlu, Nesli̇han Şengül Jan 2009

Effects Of Different Irrigation Programs On The Growth, Yield, And Fruit Quality Of Drip-Irrigated Melon, Osman Yildirim, Ni̇lgün Halloran, Şeyda Çavuşoğlu, Nesli̇han Şengül

Turkish Journal of Agriculture and Forestry

A field study was conducted in Ankara, a semi-arid region of Central Anatolia, Turkey, on clay-loamy soils in the vegetation seasons of 2005 and 2006. Kırkağaç melon cultivar (Cucumis melo L. cv. Kırkağaç) was irrigated by the drip method from transplantation to the beginning of the flowering (IS_f), fruit setting (IS_{fs}), ripening (IS_r), and harvesting (IS_h) periods. Water amounting to 50% (P_{50}), 75% (P_{75}), and 100% (P_{100}) of full irrigation water were applied. Some analyses were carried out regarding the growth, yield, and fruit quality parameters in these irrigation programs. Moreover, the amount of water, the seasonal evapotranspiration, and the …


Orthotomicus Tridentatus Eggers: Distribution And Biology In Cedar Forests Of Turkey, Mustafa Avci, Oğuzhan Sarikaya Jan 2009

Orthotomicus Tridentatus Eggers: Distribution And Biology In Cedar Forests Of Turkey, Mustafa Avci, Oğuzhan Sarikaya

Turkish Journal of Agriculture and Forestry

Orthotomicus tridentatus Eggers, 1921 (Col.: Curculionidae, Scolytinae) is the most important forest pest of cedar stands in Turkey. Yet, very little is known about its distribution and biology. Therefore, the distribution and biological characteristics of O. tridentatus were studied in the Taurus Mountains in southern Turkey between 2006 and 2008. It was determined to be a species common to all cedar forests. The length of adults was between 2.5 and 3.9 mm and the main galleries were 'S' shaped. O. tridentatus was determined to be a monophagus species for Cedrus libani A. Rich. and as endemic to Turkey. It was …


Determination Of Soil Loss By ^{137}Cs Fallout Radionuclide In Ömerli Watershed Of İstanbul, Turkey, Muhammet Sahi̇p Kiziltaş, Sevi̇lay Haciyakupoğlu, Ferhat Gökbulak, Ahmet Hizal Jan 2009

Determination Of Soil Loss By ^{137}Cs Fallout Radionuclide In Ömerli Watershed Of İstanbul, Turkey, Muhammet Sahi̇p Kiziltaş, Sevi̇lay Haciyakupoğlu, Ferhat Gökbulak, Ahmet Hizal

Turkish Journal of Agriculture and Forestry

Soil erosion and sedimentation in watersheds are usually part of the information to be considered for soil and water conservation measures. Soil loss is generally estimated with models or measured with plot studies. Although fallout radionuclides (FRN) methodology provides a powerful technique for predicting the impacts of proposed land management strategies on soil erosion and sediment yield within river basins and estimates erosion based on fallout radioisotopes (Cs-137, Pb-210, Be-7) radioactivity, it is rarely used in Turkey. The aim of this study was to determine soil losses from different land use types with FRN's methodology by using caesium-137 radionuclide in …


Weed Vegetation Of Small Grain Crops In Serbia: Environmental And Human Impacts, Sava Vrbnicanin, Zora Dajic Stevanovic, Katarina Jovanovic Radovanov, Ahmet Uludağ Jan 2009

Weed Vegetation Of Small Grain Crops In Serbia: Environmental And Human Impacts, Sava Vrbnicanin, Zora Dajic Stevanovic, Katarina Jovanovic Radovanov, Ahmet Uludağ

Turkish Journal of Agriculture and Forestry

Weed flora of winter and spring small grain crops (wheat, barley, oats, and rye) was surveyed in lowland and mountainous areas of the central part of Serbia, which are dissimilar in environmental conditions, primarily climate and soil characteristics, and crop management practices. The weed community of the mountainous area was more diverse that of the lowlands. The weed community of the mountainous area was characterized by a significantly higher proportion of dicotyledonous species, mainly hemicryptophytes, probably due to insufficient tillage and the consequent impact of surrounding grassland vegetation. Different environmental conditions and crop managements of the 2 sites caused the …


Isolation And Functional Characterization Of Two Rapeseed Genes Orthologous To Arabidopsis Thaliana Phenylalanine Ammonia-Lyase 2, Yu Ni, Yan-Zhen Dong, Guan-Rong Li, Bo Lei, You-Rong Chai, Jia-Na Li Jan 2009

Isolation And Functional Characterization Of Two Rapeseed Genes Orthologous To Arabidopsis Thaliana Phenylalanine Ammonia-Lyase 2, Yu Ni, Yan-Zhen Dong, Guan-Rong Li, Bo Lei, You-Rong Chai, Jia-Na Li

Turkish Journal of Agriculture and Forestry

Two rapeseed (Brassica napus L.) phenylalanine ammonia-lyase 2 genes (BnPAL2-1 and BnPAL2-2) were isolated. The full-length cDNAs of BnPAL2-1 and BnPAL2-2 are 2422 bp and 2421 bp, with corresponding genomic sequences of 2735 bp and 2742 bp, respectively. Clues from NCBI BLAST, multi-alignment, the phylogenetic tree, conserved domains, preferential amino acids, and tertiary structures all indicated that they are orthologs of Arabidopsis thaliana PAL2 (AtPAL2). The purified His-tagged BnPAL2-1 and BnPAL2-2 proteins, expressed in Escherichia coli, were both active for PAL catabolism, but BnPAL2-2 was much more active than BnPAL2-1. Southern blot analysis showed that the BnPAL2 subfamily might contain …


The Phylogenetic Relationship Between Populations Of Marginally And Sympatrically Located Pinus Halepensis Mill. And Pinus Brutia Ten. In Turkey, Based On The Its-2 Region, Cansu Özge Tozkar, Sertaç Önde, Zeki̇ Kaya Jan 2009

The Phylogenetic Relationship Between Populations Of Marginally And Sympatrically Located Pinus Halepensis Mill. And Pinus Brutia Ten. In Turkey, Based On The Its-2 Region, Cansu Özge Tozkar, Sertaç Önde, Zeki̇ Kaya

Turkish Journal of Agriculture and Forestry

Turkish red pine (Pinus brutia) is a widespread and important forest tree species in Turkey, occurring mainly in southern, western, and northwestern Turkey, while the natural occurrence of Aleppo pine (Pinus halepensis) is restricted to 2 locations and is found sympatrically with Turkish red pine. In the present study sympatric populations of both species from Muğla and Adana provinces in Turkey were sampled, and the internal transcribed spacer 2 (ITS-2) region of ribosomal DNA was comparatively studied with sequence analysis. Analysis of molecular variance (AMOVA) demonstrated 100% of total molecular variation between the species in Muğla province, versus only 50.65% …


Multiple Resistance, Detoxifying Enzyme Activity, And Inheritance Of Abamectin Resistance In Tetranychus Urticae Koch (Acarina: Tetranychidae), Si̇bel Yorulmaz, Recep Ay Jan 2009

Multiple Resistance, Detoxifying Enzyme Activity, And Inheritance Of Abamectin Resistance In Tetranychus Urticae Koch (Acarina: Tetranychidae), Si̇bel Yorulmaz, Recep Ay

Turkish Journal of Agriculture and Forestry

The present study investigated the biochemical mechanism of abamectin resistance in a Tetranychus urticae Koch population collected from a bean greenhouse (BEYO 2) in Beyobası village in Gazipaşa district, Antalya province, and maintained in the laboratory. LC_{50, 60, 90} levels of BEYO 2 population of T. urticae were determined using a dry film method. The LC50 level of the BEYO 2 strain with abamectin was selected 15 times and was increased from 2.42 µL 100 mL^{-1} water to 38.67 µL 100 mL^{-1} water. A selected strain showing 35.05-fold resistance was named ABA 15 strain. It was investigated whether the resistant …


A New Entomopathogenic Nematode Species For Turkey, Heterorhabditis Megidis Poinar, Jackson & Klein 1987 (Rhabditida: Heterorhabditidae), Hüseyi̇n Yilmaz, Lieven Waeyenberge, İsmai̇l Demi̇r, Maurice Moens, Zi̇hni̇ Demi̇rbağ Jan 2009

A New Entomopathogenic Nematode Species For Turkey, Heterorhabditis Megidis Poinar, Jackson & Klein 1987 (Rhabditida: Heterorhabditidae), Hüseyi̇n Yilmaz, Lieven Waeyenberge, İsmai̇l Demi̇r, Maurice Moens, Zi̇hni̇ Demi̇rbağ

Turkish Journal of Agriculture and Forestry

During a survey on the occurrence of entomopathogenic nematodes (EPNs) in the Eastern Black Sea region of Turkey, a heterorhabditid species was isolated using the Galleria-baiting technique. Based on morphology and morphometrics, the isolate was identified as Heterorhabditis megidis. Sequences of the ITS region of its rDNA confirmed this identification. The species is recorded for the first time from Turkey. A more intensive survey to determine the distribution of this species, covering all parts of the Black Sea region of Turkey, is currently underway.


Crumb Pasting And Staling Properties Of White And Traditional Vakfıkebir Breads, H. Gürbüz Kotancilar, K. Emre Gerçekaslan, M. Murat Karaoğlu Jan 2009

Crumb Pasting And Staling Properties Of White And Traditional Vakfıkebir Breads, H. Gürbüz Kotancilar, K. Emre Gerçekaslan, M. Murat Karaoğlu

Turkish Journal of Agriculture and Forestry

The crumb pasting properties of Vakfıkebir bread (VB) produced by the sourdough method traditionally and standard white bread (WB) produced by the straight dough method were investigated. For both bread types, 2 different weights of loaf were produced (500 and 1500 g). One hour after removal from the oven the loaves were wrapped in 2-layer polyethylene bags and stored at room temperature (about 20 °C) for 5 days. During storage, crumb and crust aw, pH, softness, and pasting properties of bread crumb were determined for both bread types. The aims of this study were to compare the crumb pasting properties …


Blast Disease Influence On Agronomic And Quality Traits Of Rice Varieties Under Mediterranean Conditions, Spyridon D. Koutroubas, Dimitrios Katsantonis, Dimitrios A. Ntanos, Elizabetta Lupotto Jan 2009

Blast Disease Influence On Agronomic And Quality Traits Of Rice Varieties Under Mediterranean Conditions, Spyridon D. Koutroubas, Dimitrios Katsantonis, Dimitrios A. Ntanos, Elizabetta Lupotto

Turkish Journal of Agriculture and Forestry

The effects of Pyricularia oryzae, the causal agent of blast disease in rice, on plant growth, grain yield, and grain quality under Mediterranean conditions were studied in 2002 and 2003. Four rice varieties were grown under high and low disease pressure, achieved by early inoculation with the blast fungus and by natural infection, respectively. Results showed that inoculation affected the overall plant growth and yield and resulted in a reduction in plant height, number of productive tillers per plant, grain weight, and grain yield. The magnitude of the reduction was dependent on the varietals' susceptibility to the disease. Both types …


Physiological And Nutritional Responses Of Chickpea (Cicer Arietinum L) To Salinity, Abdelmajid Krouma Jan 2009

Physiological And Nutritional Responses Of Chickpea (Cicer Arietinum L) To Salinity, Abdelmajid Krouma

Turkish Journal of Agriculture and Forestry

The aim of this study was to evaluate growth, nodulation, nitrogen fixation, and ionic repartition in 2 chickpea varieties, namely Chetoui and Amdoun, which are grown under salt stress. Inoculated seedlings were grown in a nutrient solution that lacked NaCl (control) or supplemented with 25 or 50 mM NaCl. Whole plant and nodule growth, nitrogen fixation and sodium, and chloride and potassium partitioning were subsequently evaluated. In comparison to Chetoui, Amdoun maintained a high level of whole plant and nodule growth and had a greater nitrogen fixation activity. Nitrogenase activity measurements demonstrated that nodule senescence was more precocious in Chetoui …


Genetic Analysis Of Some Physical Properties Of Bread Wheat Grain (Triticum Aestivum L. Em Thell), Cemal Yücel, Faheem Shehzad Baloch, Hakan Özkan Jan 2009

Genetic Analysis Of Some Physical Properties Of Bread Wheat Grain (Triticum Aestivum L. Em Thell), Cemal Yücel, Faheem Shehzad Baloch, Hakan Özkan

Turkish Journal of Agriculture and Forestry

Very little information exists on the relative genetic architecture of the grain physical properties of wheat. The physical properties of grain have a direct or indirect influence on the milling and baking quality of wheat. Therefore, understanding the inheritance of grain physical properties will be useful to improve varieties with better quality. Five bread wheat cultivars were crossed in order to evaluate the mode of inheritance and combining ability and the correlation of the grain's physical properties. Analysis of variance for combining ability showed that both additive and non-additive gene actions were involved in controlling most of the traits. Magnitudes …


Genetic Variability And Interrelationship Among Grain Yield And Some Quality Traits In Turkish Winter Durum Wheat Landraces, Mevlüt Akçura Jan 2009

Genetic Variability And Interrelationship Among Grain Yield And Some Quality Traits In Turkish Winter Durum Wheat Landraces, Mevlüt Akçura

Turkish Journal of Agriculture and Forestry

Twenty durum wheat pure lines obtained from landraces collected from southwestern districts of Konya and 5 durum wheat cultivars were evaluated under rain fed conditions in Konya between 2005 and 2008 in a 3 replicates randomized complete block design to estimate genetic variation and heritability for grain yield and 6 quality traits. The overall goal of the study was to improve pure lines from durum wheat landraces for low input agricultural areas of the Central Anatolian region and similar environmental conditions. The broad sense heritability estimates ranged from 12.9% (particle size index) to 50.0% (semolina color). The highest expected genetic …


Partitioning Rainfall Into Throughfall, Stemflow, And Interception Loss In An Oriental Beech (Fagus Orientalis Lipsky) Forest During The Growing Season, Mohammad Taghi Ahmadi, Pedram Attarod, Mohammad Reza Marvi Mohadjer, Ramin Rahmani, Jafar Fathi Jan 2009

Partitioning Rainfall Into Throughfall, Stemflow, And Interception Loss In An Oriental Beech (Fagus Orientalis Lipsky) Forest During The Growing Season, Mohammad Taghi Ahmadi, Pedram Attarod, Mohammad Reza Marvi Mohadjer, Ramin Rahmani, Jafar Fathi

Turkish Journal of Agriculture and Forestry

Partitioning gross rainfall (GR) into throughfall (TF), stemflow (SF), and interception loss (I), which has a very significant effect on water balance and the nutrient cycle in forest ecosystems, was studied in a natural oriental beech (Fagus orientalis Lipsky) forest situated in the Caspian Forest of northern Iran. Measurements were made inside a plot with an area of 0.5625 ha located in the Kheyrud Forest Research Station of Tehran University during the 2008 growing season. GR was measured based on an average of the records of 3 rain gauges located in an open area approximately 160 m from the study …


Weed Control In Maize (Zea Mays L.) With Effective Minimum Rates Of Foramsulfuron, Kami̇l Kir, M. Nedi̇m Doğan Jan 2009

Weed Control In Maize (Zea Mays L.) With Effective Minimum Rates Of Foramsulfuron, Kami̇l Kir, M. Nedi̇m Doğan

Turkish Journal of Agriculture and Forestry

Dose-response experiments were conducted under controlled conditions to determine the effective minimum rates (ED_{90}) of foramsulfuron for 11 weed species that occur in maize growing areas in Turkey. Annual weeds were collected from maize fields in the cotyledon stage and transferred to pots containing a mixture of soil-turf (1:1 ratio). Perennial weeds were grown from rhizome pieces collected from infested fields. Weeds were then treated with different rates of foramsulfuron to determine the effective minimum rate (ED_{90}) for each weed species via dose-response experiments. Results showed that ED_{90} rates were lower than the recommended herbicide rate for most weed species. …


Identification Of Potato Y Potyvirus (Pvy^O) Resistance In Wild And Cultivated Tomatoes, Fevzi̇ye Çelebi̇ Toprak, Emi̇nur Barutçu, Anne Frary, Sami̇ Doğanlar Jan 2009

Identification Of Potato Y Potyvirus (Pvy^O) Resistance In Wild And Cultivated Tomatoes, Fevzi̇ye Çelebi̇ Toprak, Emi̇nur Barutçu, Anne Frary, Sami̇ Doğanlar

Turkish Journal of Agriculture and Forestry

Potato Y potyvirus (PVY) is an important plant pathogen worldwide that infects and causes yield losses in the family Solanaceae including potato (Solanum tuberosum), pepper (Capsicum spp.), tomato (S. lycopersicum), and tobacco (Nicotiana tabacum). In this study, 20 different tomato accessions representing 6 different species were mechanically inoculated with PVY^O. The plants were scored visually for symptoms and then tested for presence of the virus 2-4 weeks after inoculation by ELISA. The results were variable. Most wild species of tomato sustained PVY^O replication in inoculated leaves. Some of the wild species showed an immune response, while some became systemically infected. …


Development, Fecundity, And Prey Consumption Of Neoseiulus Californicus (Mcgregor) Fed Tetranychus Cinnabarinus Boisduval, Oktay Kuştutan, İbrahi̇m Çakmak Jan 2009

Development, Fecundity, And Prey Consumption Of Neoseiulus Californicus (Mcgregor) Fed Tetranychus Cinnabarinus Boisduval, Oktay Kuştutan, İbrahi̇m Çakmak

Turkish Journal of Agriculture and Forestry

The development, fecundity, and prey consumption of the Aydın Neoseiulus californicus population (McGregor) feeding on Tetranychus cinnabarinus Boisduval were studied in the laboratory at different temperatures, 65 ± 10% RH, and a 16 h L:8 h D cycle. The total development period (egg to adult) decreased linearly with increasing temperature (0.012 × T - 0.093; R^2 = 0.950). The total development threshold obtained from regression analysis was estimated to be 7.8 °C. Neoseiulus californicus required, on average, 83.3 DD to complete its development from egg to adult. Mean total and daily fecundity were highest at 25 °C, and were statistically …


Influence Of Temperature On Life Table Parameters Of The Predaceous Mite Euseius Finlandicus (Oudemans) (Acari: Phytoseiidae), İsmai̇l Kasap Jan 2009

Influence Of Temperature On Life Table Parameters Of The Predaceous Mite Euseius Finlandicus (Oudemans) (Acari: Phytoseiidae), İsmai̇l Kasap

Turkish Journal of Agriculture and Forestry

This study determined the differences in development time, survival, and fecundity of Euseius finlandicus (Oudemans) (Acari: Phytoseiidae) when feeding on Tetranychus urticae (Koch) (Acari: Tetranychidae) together with birch pollen at 16, 20, 25, and 30 ± 1 °C, 65 ± 10% RH, and 16:8 photoperiod under laboratory conditions. Total development times for E. finlandicus were 29.48, 18.15, 7.28, and 5.90 days for females and 28.16, 17.54, 7.03, and 5.81 days for males at 16, 20, 25, and 30 ± 1 °C, respectively. Total egg production was highest (30.53 eggs) at 25 °C, whereas daily egg production was highest (1.80 eggs) …