Effect Of Cereal Cyst Nematode Heterodera Avenae (Tylenchida: Heteroderidae) On Yield Of Some Spring Wheat Varieties In Adana Province, Turkey, Mustafa İmren, İbrahi̇m Hali̇l Elekci̇oğlu
Turkish Journal of Agriculture and Forestry
Cereal cyst nematode Heterodera avenae is found predominantly in the spring wheat-growing areas in Adana Province in the eastern Mediterranean region of Turkey. The impact of H. avenae on wheat yield has been observed but not quantified. This study was conducted to determine the effect of H. avenae on the yield of 6 wheat varieties in the 2011/2012 and 2012/2013 growing seasons in the naturally infested fields of Adana. According to our results, H. avenae significantly suppressed grain yield of the wheat varieties, ranging from 4.3% to 25.7%. Negative or positive linear regressions between the reproduction factor of H. avenae …
Use Of Diploid And Tetraploid Hulled Wheat Genotypes For Animal Feeding,
2014
TÜBİTAK
Use Of Diploid And Tetraploid Hulled Wheat Genotypes For Animal Feeding, Mahmut Kaplan, Taner Akar, Adem Kamalak, Sancar Bulut
Turkish Journal of Agriculture and Forestry
Einkorn and emmer wheat are still cultivated in the mountainous areas of Turkey. They are resistant to biotic and abiotic stress conditions and are routinely used as food stuffs due to reasonable dietary fiber rate and vitamin and micronutrient content. Therefore, the present study was conducted to determine the feed potential of einkorn and emmer wheat populations. A total of 17 hulled wheat populations collected from different provinces of Turkey were studied during the years 2012 and 2013. Experiments were carried out in randomized complete block design with 3 replications to investigate grain yield, harvest index, chemical composition, and gas …
First Report Of Adoxophyes Orana In Northwestern Turkey: Population Fluctuation And Damage On Different Host Plants,
2014
TÜBİTAK
First Report Of Adoxophyes Orana In Northwestern Turkey: Population Fluctuation And Damage On Different Host Plants, Bi̇lgi̇ Pehlevan, Orkun Bariş Kovanci
Turkish Journal of Agriculture and Forestry
This study reports the presence of the summer fruit tortrix moth, Adoxophyes orana, in pome and stone fruit orchards for the first time in northwestern Turkey. Based on growers complaints about cosmetic damage to peach and pear fruits, pheromone traps were set up in mid-April of 2009 and 2010 to monitor the occurrence of the summer fruit tortrix moth. We conducted studies in conventional apple, pear, peach, and sweet cherry orchards in Bursa, northwestern Turkey. Moths caught in pheromone traps showed a trimodal flight pattern in all orchards. However, both moth emergence time and total flight period varied among host …
Germination And Electrical Conductivity Tests On Artificially Aged Seed Lots Of 2 Wall-Rocket Species,
2014
TÜBİTAK
Germination And Electrical Conductivity Tests On Artificially Aged Seed Lots Of 2 Wall-Rocket Species, Simona-Laura Lazar, Sara Mira, Doru Pamfil, Juan Bautista Martinez-Laborde
Turkish Journal of Agriculture and Forestry
The aim of this study was to determine whether the loss of germinability and vigour in wall-rocket seed lots was related to electrolyte leakage. Ten seed lots of 2 wall-rocket species (9 of Diplotaxis tenuifolia and one of D. erucoides (Brassicaceae)) were stored at 45 °C and 70% relative humidity and electrolyte leakage was measured using the conductivity test. Small differences in longevity were found among species or seed lots, suggesting that a similar relative longevity might be expected within the genus Diplotaxis after artificial ageing, and that it will be above the average of that found in other species …
Occurrence Of Botryosphaeriaceae Species Associated With Grapevine Dieback In Algeria,
2014
TÜBİTAK
Occurrence Of Botryosphaeriaceae Species Associated With Grapevine Dieback In Algeria, Faiza Ammad, Messaoud Benchabane, Mohamed Toumi, Nesrine Belkacem, Amel Guesmi, Cherif Ameur, Pascal Lecomte, Othmane Merah
Turkish Journal of Agriculture and Forestry
Grapevine dieback is an increasing problem in grape vineyards in Algeria. We conducted field surveys each spring between 2006 and 2012 to determine the fungal pathogens associated with grapevine decline in various grape-growing regions. We isolated and identified 3 species of Botryosphaeriaceae (Botryosphaeria dothidea, Diplodia seriata, and Neofusicoccum parvum) from infected wood using a combination of morphological and cultural characters, as well as phylogenetic analyses of ribosomal DNA internal transcribed spacer (ITS) regions and fruiting body. We identified 20 isolates of Diplodia seriata, 13 isolates of Botryosphaeria dothidea, and 7 isolates of Neofusicoccum parvum. Inoculation of grapevine plantlets with the …
Hybrid Performance And Heterosis In F1 Offspring Of Triticale (× Triticosecale Wittm.),
2014
TÜBİTAK
Hybrid Performance And Heterosis In F1 Offspring Of Triticale (× Triticosecale Wittm.), Mustafa Yildirim, Hasan Gezgi̇nç, Ali̇ Haydar Paksoy
Turkish Journal of Agriculture and Forestry
In this study, the combined ability effects and heterosis were determined for number of days to anthesis (AT), plant height (PH), fertile tillers plant^{1} (FT), spike length (SL), spikelets spike1 (SS) and grains spike1 (GS), 1000-kernel weight (TW), and grain yield plant^{1} (GY) of 4 triticale genotypes [Karma (G1), Presto (G2), Ayşehanım (G3), and Mehmetbey (G4)] and their 6 F_1 offspring. The mean squares of general combining ability (GCA) and specific combining ability (SCA) were statistically significant for all traits. According to the GCA/SCA, additive gene effects were found for all traits. According to the desired values for traits on …
Postharvest Performance Of Cut Marigold, Rose, And Sunflower Stems As Influenced By Homemade And Commercial Floral Preservatives, Iftikhar Ahmad, John Martin Dole
Turkish Journal of Agriculture and Forestry
Effects of homemade or commercial floral preservatives, applied as 48-h grower treatments or continuous retailer/consumer applications, were studied on cut Double Eagle marigold, Red Bentley rose, and Sunbright sunflower. Cut stems of marigold placed in preservative solutions, irrespective of the duration, had a longer vase life than stems in tap water. Continuous use of soda (7 Up) or citric-Kathon and short-term use of citric-Al resulted in the longest extension of vase life. Cut stems of rose had the longest vase life when pulsed with citric-Kathon for 48 h or continuously placed in citric-Al until termination. For sunflower, use of citric-Kathon …
Application Of A Multicriteria Decision-Making Approach For Rice Land Suitability Analysis In Turkey,
2014
TÜBİTAK
Application Of A Multicriteria Decision-Making Approach For Rice Land Suitability Analysis In Turkey, İsmai̇l Sezer, Orhan Dengi̇z
Turkish Journal of Agriculture and Forestry
The main objective of this study was to implement a spatial model with a multicriteria assessment approach for rice (Oryza sativa L.) land suitability by using geographic information system (GIS) techniques. The land mapping units resulting from the overlay of the selected theme layers had unique land quality information on which land suitability was based. The selected theme layers of rice include topographic factor (slope), soil physical factors (soil depth, soil texture, drainage, stoniness, hydraulic conductivity), and soil chemical factors (pH, electrical conductivity, CaCO_3, soil fertility). These theme layers were collected from existing information. Spatial information of soil physical and …
Exchange Rate Volatility Effects On Brics Countries Exports,
2014
Louisiana State University and Agricultural and Mechanical College
Exchange Rate Volatility Effects On Brics Countries Exports, David Isaias Maradiaga Pineda
LSU Doctoral Dissertations
The leaders of the leading emerging economies Brazil, Russia, India, China, and South Africa (BRICS) claim that increased currency exchange rate volatility (CERV) from USD, EUR, and JPY (G-3) negatively impacts their exports, and expressed their desire for less trade dependence on these currencies. The literature on the impact of CERV on trade is vast. However, no consensus on the impact’s direction and significance has been reached yet. The motivation of this study was: first, to contribute to the existing empirical literature by using an alternative methodology; and second, to provide empirical evidence to the claim’s validity or nullity by …
An Evaluation Of The Impact Of The Adoption Of The Onboard Module Building Cotton Harvest System On The Economic Competitiveness Of Cotton Production In Louisiana,
2014
Louisiana State University and Agricultural and Mechanical College
An Evaluation Of The Impact Of The Adoption Of The Onboard Module Building Cotton Harvest System On The Economic Competitiveness Of Cotton Production In Louisiana, Natalia Estefania Latorre
LSU Master's Theses
Planted acreage of cotton in Louisiana has decreased over the past several years due to higher cotton variable production costs, stagnant cotton market prices, and higher grain yields and market prices for corn and soybeans. The general objective was to determine the economic impact of the adoption and use of an onboard module building cotton harvest system on the ability of the cotton enterprise to compete for planted acreage in the mixed crop farming areas of Louisiana. Specific research objectives included the estimated of comparative ownership and operating costs for the module building harvest systems relative to existing basket/module builder …
A Factor Analysis Of The Dimensions Of Economic Damages From Tropical Storms And Hurricanes In Louisiana,
2014
Louisiana State University and Agricultural and Mechanical College
A Factor Analysis Of The Dimensions Of Economic Damages From Tropical Storms And Hurricanes In Louisiana, James Luke Boutwell
LSU Master's Theses
Coastal communities are highly sensitive to disturbances from tropical storms and hurricanes. This is particularly true in Louisiana and along the U.S. Gulf Coast where economies are largely dependent on tourism and natural resource based industry. Since Hurricane Katrina and, more recently, Hurricane Sandy, there has been an increase in concern for how coastal communities will mitigate and respond to the impacts of coastal storms. These concerns are made more acute by the increasing population concentrated along the coast and the risk of more frequent and more severe coastal storms in the future. A commonly advocated-for method of storm damage …
The Role Of Futures Prices In Pricing Commodity Exports Of Developing Countries,
2014
Louisiana State University and Agricultural and Mechanical College
The Role Of Futures Prices In Pricing Commodity Exports Of Developing Countries, Jorge Jose Handal Reyes
LSU Master's Theses
The purpose of this thesis is to study the empirical linkages between nearby futures prices for coffee at the New York (NY) Intercontinental Exchange (ICE)/NY Board of Trade (NYBOT) and cash prices (producer and export prices) in selected Latin American countries. This theme was entertained in Fortenbery and Zapata (2004) and subsequently by Fortenbery and Zapata (2004) and Li and Fortenbery (2013). This thesis uses data from January 1990 to May 2013 and adds producer cash prices in addition to export prices, thus expanding the dataset by over a decade and adding local market cash prices relative to the first …
Three Essays On Migration Decision, Migration Destination Choice, And Food Security: Evidence From Chitwan, Nepal,
2014
Louisiana State University and Agricultural and Mechanical College
Three Essays On Migration Decision, Migration Destination Choice, And Food Security: Evidence From Chitwan, Nepal, Madhav Regmi
LSU Master's Theses
This thesis research is based on data obtained from the Nepal Ethno Survey of Family, Migration and Development conducted in 396 farming households in the Eastern part of the Chitwan, Nepal. In a three essay thesis format, I explore the factors affecting migration decision and migration destination choices. I then establish a link between remittance and food security status of the surveyed households. In the first essay, I use a probit model to identify household decisions to send or not to send migrants, and identify factors affecting the decision process. I include individual, household and social network characteristics in the …
Factors Influencing Adoption Of Vsh Queens In The Honey Breeding Industry,
2014
Louisiana State University and Agricultural and Mechanical College
Factors Influencing Adoption Of Vsh Queens In The Honey Breeding Industry, Julie Leiby
LSU Master's Theses
There are many threats that contribute to the decline in honey bee colonies around the United States; among them is the Varroa mite, Varroa destructor. The Varroa mite is a significant threat to honey bees and, by extension, beekeepers across the United States. It is suspected to be one of the main contributors to the increase in colony collapse and the decline in bee numbers and the beekeeping industry (Danka, May 2013). Fifty-five percent of beekeepers exited beekeeping between 1987 and 2002 (USDA). Although honey production continued to decrease through 2007, the number of beekeepers entering beekeeping had increased (USDA). …
Direct Marketing Of Louisiana Shrimp: A Cost-Earnings Analysis,
2014
Louisiana State University and Agricultural and Mechanical College
Direct Marketing Of Louisiana Shrimp: A Cost-Earnings Analysis, Jill Christoferson
LSU Master's Theses
Secondary data on cost and earnings from a 2012 survey of inshore Louisiana shrimpers was used as the foundation this partial budget analysis examining the feasibility of supplementing direct marketing (DM) strategies for Louisianan shrimp harvesters. Refinement of key variables for the analysis was conducted using supplemental surveys in 2014 of DM shrimp harvesters and DM consumers. The DM harvester survey (n= 72) produced information on actual price per pound for DM shrimp, as well as catch grade distribution, product marketing mix, and labor estimates. The DM consumer survey (n=255) yielded information on participants’ preferences for DM shrimp, including actual …
Shattercane X Als-Tolerant Sorghum F1 Hybrid And Shattercane Interference In Als-Tolerant Sorghum,
2014
University of Nebraska-Lincoln
Shattercane X Als-Tolerant Sorghum F1 Hybrid And Shattercane Interference In Als-Tolerant Sorghum, Rodrigo Werle, Jared J. Schmidt, John Laborde, Angela Tran, Cody F. Creech, John L. Lindquist
Department of Agronomy and Horticulture: Faculty Publications
ALS-tolerant grain sorghum cultivars are expected to be available for farmers within the next few years. Knowing that: (i) crosses between sorghum and shattercane are likely to occur resulting in crop-to-weed gene flow; (ii) ALS-susceptible shattercane X ALS-tolerant grain sorghum F1 hybrids (hybrids) were ultimately resistant to ALS-herbicides under field conditions; and (iii) hybrid fitness is equal to, or greater than, the wild parent, we conducted a greenhouse study to compare the competitive effect of shattercane and hybrid on sorghum, and whether or not herbicide application would influence the competitive ability of the hybrid …
Common Sunflower Seedling Emergence Across The U.S. Midwest,
2014
South Dakota State University
Common Sunflower Seedling Emergence Across The U.S. Midwest, Sharon A. Clay, Adam Davis, Anita Dille, John Lindquist, Analiza H. M. Ramirez, Christy Sprague, Graig Reicks, Frank Forcella
Department of Agronomy and Horticulture: Faculty Publications
Predictions of weed emergence can be used by practitioners to schedule POST weed management operations. Common sunflower seed from Kansas was used at six Midwestern U.S. sites to examine the variability that 16 climates had on common sunflower emergence. Nonlinear mixed effects models, using a flexible sigmoidal Weibull function that included thermal time, hydrothermal time, and a modified hydrothermal time (with accumulation starting from January 1 of each year), were developed to describe the emergence data. An iterative method was used to select an optimal base temperature (Tb) and base and ceiling soil matric potentials (ψb and …
Genotyping By Sequencing For Genomic
Prediction In A Soybean Breeding Population,
2014
University of Nebraska-Lincoln
Genotyping By Sequencing For Genomic Prediction In A Soybean Breeding Population, Diego Jarquin, Kyle Kocak, Luis Posadas, Katie Hyma, Joseph Jedlicka, George L. Graef, Aaron Lorenz
Department of Agronomy and Horticulture: Faculty Publications
Background: Advances in genotyping technology, such as genotyping by sequencing (GBS), are making genomic prediction more attractive to reduce breeding cycle times and costs associated with phenotyping. Genomic prediction and selection has been studied in several crop species, but no reports exist in soybean. The objectives of this study were (i) evaluate prospects for genomic selection using GBS in a typical soybean breeding program and (ii) evaluate the effect of GBS marker selection and imputation on genomic prediction accuracy. To achieve these objectives, a set of soybean lines sampled from the University of Nebraska Soybean Breeding Program were genotyped using …
Identification And Validation Of Quantitative Trait Loci For Seed
Yield, Oil And Protein Contents In Two Recombinant Inbred Line
Populations Of Soybean,
2014
South Dakota State University
Identification And Validation Of Quantitative Trait Loci For Seed Yield, Oil And Protein Contents In Two Recombinant Inbred Line Populations Of Soybean, Xianzhi Wang, Guo‑Liang Jiang, Marci Green, Roy A. Scott, Qijian Song, D. L. Hyten, P. B. Cregan
Department of Agronomy and Horticulture: Faculty Publications
Soybean seeds contain high levels of oil and protein, and are the important sources of vegetable oil and plant protein for human consumption and livestock feed. Increased seed yield, oil and protein contents are the main objectives of soybean breeding. The objectives of this study were to identify and validate quantitative trait loci (QTLs) associated with seed yield, oil and protein contents in two recombinant inbred line populations, and to evaluate the consistency of QTLs across different environments, studies and genetic backgrounds. Both the mapping population (SD02- 4-59 × A02-381100) and validation population (SD02- 911 × SD00-1501) were phenotyped for …
Porocercospora Seminalis Gen. Et Comb. Nov.,
The Causal Organism Of Buffalograss False Smut,
2014
University of Nebraska-Lincoln
Porocercospora Seminalis Gen. Et Comb. Nov., The Causal Organism Of Buffalograss False Smut, Bimal S. Amaradasa, Hugo Madrid, Johannes Z. Groenewald, Pedro W. Crous, Keenan L. Amundsen
Department of Agronomy and Horticulture: Faculty Publications
False smut caused by Cercospora seminalis is an important disease of buffalograss (Buchloe dactyloides) affecting seed production. The pathogen prevents normal caryopsis development and causes considerable yield loss and reduced seed germination. The current taxonomic placement of the false-smut causal pathogen in the genus Cercospora is incorrect based on its morphological characteristics and DNA phylogeny. In the present study the phylogenetic position of C. seminalis is clarified based on DNA sequence analysis of three loci namely the internal transcribed spacer (ITS) region, partial nuclear ribosomal large subunit (LSU) and partial sequences of the RNA polymerase II second largest …
