Impact Of High-Input Production Practices On Soybean Yield,
2010
University of Kentucky
Impact Of High-Input Production Practices On Soybean Yield, Daniel L. Jordan
University of Kentucky Master's Theses
High-input management practices are often heavily marketed to producers to increase soybean [Glycine max (L) Merr.] yield in already high-yielding environments. Field research was conducted in three locations within 6 states (Arkansas, Iowa, Kentucky, Louisiana, Michigan, and Minnesota) in 2009 to determine the effect of seed treatment, inoculant, foliar fungicide, additional soil fertility beyond state recommendations, foliar fertilizer, increased population over state recommendations, and narrow row spacing on yield. The high-input system (combination of the management practices) yielded higher than standard-input system (University recommended management practices) in only 8 of the 18 locations. Narrow rows, in both the high …
An Integrative Approach To Genomic Introgression Mapping,
2010
Iowa State University
An Integrative Approach To Genomic Introgression Mapping, Andrew J. Severin, Gregory A. Peiffer, Wayne W. Xu, D. L. Hyten, Bruna Bucciarelli, Jamie A. O'Rourke, Yung-Tsi Bolon, David Grant, Andrew Farmer, Gregory D. May, Carroll P. Vance, Randy C. Shoemaker, Robert M. Stupar
Department of Agronomy and Horticulture: Faculty Publications
Near-isogenic lines (NILs) are valuable genetic resources for many crop species, including soybean (Glycine max). The development of new molecular platforms promises to accelerate the mapping of genetic introgressions in these materials. Here, we compare some existing and emerging methodologies for genetic introgression mapping: single-feature polymorphism analysis, Illumina GoldenGate single nucleotide polymorphism (SNP) genotyping, and de novo SNP discovery via RNA-Seq analysis of next-generation sequence data. We used these methods to map the introgressed regions in an iron-inefficient soybean NIL and found that the three mapping approaches are complementary when utilized in combination. The comparative RNA-Seq approach offers …
Crop Registration: The Pathway To Public Access Of Plant Genetic Materials To Build Crops For The Future,
2010
USDA, ARS, National Center for Genetic Resources Preservation
Crop Registration: The Pathway To Public Access Of Plant Genetic Materials To Build Crops For The Future, D. D. Ellis, K. A. Garland-Campbell, J. A. Grotenhuis, M. M. Jenderek, Jeffrey F. Pedersen
Department of Agronomy and Horticulture: Faculty Publications
Starting in 1926 and continuing for 80+ yr, 11,241 crop genetic materials have been registered as of 31 Dec. 2008. The crop registration process is an important pathway to publically describe and document new and useful genetic materials and to incorporate these into the public domain via the National Plant Germplasm System (NPGS). Crop Registration materials are now searchable via the Germplasm Resources Information Network (GRIN) and demand for registered materials remains strong with more than 9150 registered accessions distributed in the past 26 yr by the NPGS. Guidelines continue to evolve to accommodate global factors effecting germplasm exchange such …
Efficacy Of Singular And Stacked Brown Midrib 6 And 12 In The Modification Of Lignocellulose And Grain Chemistry,
2010
USDA-ARS
Efficacy Of Singular And Stacked Brown Midrib 6 And 12 In The Modification Of Lignocellulose And Grain Chemistry, Scott E. Sattler, Deanna L. Funnell-Harris, Jeffrey F. Pedersen
Department of Agronomy and Horticulture: Faculty Publications
In sorghum, brown midrib (bmr) 6 and 12 impair the last two steps of monolignol synthesis. bmr genes were introduced into grain sorghum to improve the digestibility of lignocellulosic tissues for grazing or bioenergy uses following grain harvest. Near-isogenic grain sorghum hybrids (AWheatland X RTx430) were developed containing bmr6, bmr12, and the bmr6 bmr12 double mutant (stacked), and their impacts were assessed in a two-year field study. The bmr genes did not significantly impact grain or lignocellulosic tissue yield. Lignocellulosic tissue from bmr6, bmr12, and stacked hybrids had reduced lignin content and increased in …
Heterosis In Sweet Sorghum
And Selection Of A New Sweet Sorghum Hybrid
For Use In Syrup Production In Appalachia,
2010
University of Kentucky
Heterosis In Sweet Sorghum And Selection Of A New Sweet Sorghum Hybrid For Use In Syrup Production In Appalachia, T. W. Pfeiffer, M. J. Bitzer, J. J. Toy, Jeffrey F. Pedersen
Department of Agronomy and Horticulture: Faculty Publications
Although heterosis is well established in grain and forage sorghum [Sorghum bicolor (L.) Moench], reports of heterosis in sweet sorghum are limited to results from grain sorghum × sweet sorghum hybrids. Recent development of cytoplasmic male-sterile sweet sorghum lines allows creation of sweet sorghum hybrids for research and industry. Male sterility may also affect allocation of photosynthate to plant parts, creating the potential to increase sugar content in stems by eliminating seed as a sink. The objectives of this study were to compare performance of A3 cytoplasmic male-sterile lines and A3 cytoplasmic male-sterile hybrids to fertile B …
Influences Of Wind And Sandblasting On The
Endangered Blowout Penstemon,
2010
University of Nebraska-Lincoln
Influences Of Wind And Sandblasting On The Endangered Blowout Penstemon, James Stubbendieck, Cheryl D. Dunn, Heidi L. Hillhouse, L. M. Landholt
Department of Agronomy and Horticulture: Faculty Publications
Blowout penstemon Penstemon haydenii is a federally endangered species growing only in areas with active wind erosion in sand dunes of the central United States. This early seral species declines as the blowout habitat stabilizes, allowing later seral species to increase. Blowout penstemon populations and plant size declined in the 1990s when precipitation was higher than normal, resulting in reduced sand movement. We conducted a greenhouse experiment to determine whether blowing sand influenced vigor and persistence of blowout penstemon seedlings. Treatments were wind, sandblasting, wind with sandblasting, and a control. The wind treatment was a constant 14 km h–1 …
Fine Mapping Of The Scn Resistance Locus Rhg1-B
From Pi 88788,
2010
University of Illinois
Fine Mapping Of The Scn Resistance Locus Rhg1-B From Pi 88788, Myungsik Kim, David L. Hyten, Andrew F. Bent, Brian W. Diers
Department of Agronomy and Horticulture: Faculty Publications
Soybean cyst nematode (SCN) (Heterodera glycines Ichinohe) is the most economically damaging soybean [Glycine max (L.) Merr.] pest in the USA and genetic resistance is a key component for its control. Although SCN resistance is quantitative, the rhg1 locus on chromosome 18 (formerly known as Linkage Group G) confers a high level of resistance. The objective of this study was to fi ne-map the rhg1-b allele that is derived from plant introduction (PI) 88788. F2 and F3 plants and F3:4 lines from crosses between SCN resistant and susceptible genotypes were tested with genetic markers to …
High-Throughput Snp Discovery And Assay
Development In Common Bean,
2010
USDA, Agricultural Research Service
High-Throughput Snp Discovery And Assay Development In Common Bean, David L. Hyten, Qijian Song, Edward W. Fickus, Charles V. Quigley, Jong-Sung Lim, Ik-Young Choi, Eun-Young Hwang, Marcial Pastor-Corrales, Perry B. Cregan
Department of Agronomy and Horticulture: Faculty Publications
Background: Next generation sequencing has significantly increased the speed at which single nucleotide polymorphisms (SNPs) can be discovered and subsequently used as molecular markers for research. Unfortunately, for species such as common bean (Phaseolus vulgaris L.) which do not have a whole genome sequence available, the use of next generation sequencing for SNP discovery is much more difficult and costly. To this end we developed a method which couples sequences obtained from the Roche 454-FLX system (454) with the Illumina Genome Analyzer (GA) for high-throughput SNP discovery. Results: Using a multi-tier reduced representation library we discovered a total of …
2010 Weed Science Research Report – Tan Section,
2010
North Dakota State University
2010 Weed Science Research Report – Tan Section, Ndsu Weed Science, Dept. Of Plant Sciences
Plant Sciences Weed Science Reports
The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2010. It includes work on adjuvants and spray quality and the management of several weeds in North Dakota.
The Effect Of Nitrogen And Phosphorus Fertilization On Yield, Some Fruit Characteristics, Hormone Concentrations, And Alternate Bearing In Pistachio, Nurdan Tuna Güneş, Yeşi̇m Okay, A. İlhami̇ Köksal, Mehmet Köroğlu
Turkish Journal of Agriculture and Forestry
This research was carried out in order to determine the effects of nitrogen and phosphorus fertilization on yield, some fruit characteristics, hormone concentrations, and alternate bearing in pistachio (Pistacia vera L.) cv. 'Kırmızı' grafted on P. vera over 3 consecutive years. Nitrogen was applied at the rate of 0 (control), 800, 1000, and 1200 g tree^{-1}, and phosphorus was applied at the rate of 0 (control), 200, 400, and 600 g tree^{-1} into the soil. As a result, although yield mostly decreased and nut weight increased, especially in the 2^{nd} year ('off' year), considerable interactions among fertilizer rates were determined …
Determining The Levels Of Genetic Variation Using Ssr Markers In Three Turkish Barley Materials Known As Tokak,
2010
TÜBİTAK
Determining The Levels Of Genetic Variation Using Ssr Markers In Three Turkish Barley Materials Known As Tokak, Nejdet Kandemi̇r, Ahmet Yildirim, Rahi̇me Gündüz
Turkish Journal of Agriculture and Forestry
Genetic variations are the raw materials of plant breeding and have been increasingly narrowed due to various reasons. Landraces are good sources of genetic variation, but need to be characterized first. This study was conducted to determine the levels of genetic variation in 3 barley materials originated in Turkey, all known as Tokak. Of the 3 materials used, PI 470281 is a landrace and CIHO 10093 is a pure line. The third is Tokak 157/37, a major cultivar of Turkey considered to be a landrace. In order to detect the levels of polymorphism within and among these materials 30 SSR …
Linear-Like Discrete-Time Fuzzy Control In The Regulation Of Irrigation Canals,
2010
TÜBİTAK
Linear-Like Discrete-Time Fuzzy Control In The Regulation Of Irrigation Canals, Ömer Faruk Durdu
Turkish Journal of Agriculture and Forestry
A linear-like discrete-time fuzzy controller was designed to control and stabilize a single-pool irrigation canal. Saint Venant equations for open-channel flow were linearized using the Taylor series and a finite-difference approximation of the original nonlinear partial differential equations. Using the linear optimal control theory, a traditional linear quadratic regulator (LQR) was first developed for an irrigation canal with a single-pool, and the results were observed. Then a linear-like global system representation of a discrete-time fuzzy system was proposed by viewing a discrete-time fuzzy system in a global concept and unifying the individual matrices into synthetic matrices. This linear-like representation aided …
Allelopathic Potential Of Euphorbia Helioscopia L. Against Wheat (Triticum Aestivum L.), Chickpea (Cicer Arietinum L.) And Lentil (Lens Culinaris Medic.), Asif Tanveer, Aqeel Rehman, Muhammad Mansoor Javaid, Rana Nadeem Abbas, Muhammad Sibtain, Azraf Ul Haq Ahmad, Muhammad Sahid Ibin-I-Zamir, K. M. Chaudhary, A. Aziz
Turkish Journal of Agriculture and Forestry
Studies investigating the allelopathic effect of root, stem, leaf, and fruit water extracts and infested soil of Euphorbia helioscopia L. on the seed germination and seedling growth of wheat, chickpea, and lentil were conducted in a completely randomized design with 4 replications. Water extracts of root, stem, leaf, and fruit were prepared by soaking dried plant parts of E. helioscopia in water (1:20 w/v) for a period of 24 h. Seedling emergence, seedling vigor index, and total dry weight of wheat, chickpea, and lentil seedlings were significantly reduced when these crops were grown in soil taken from an E. helioscopia …
Impact Of Irrigation Water Quality, Irrigation Systems, Irrigation Rates And Soil Amendments On Tomato Production In Sandy Calcareous Soil, Abdulrasoul M. Al-Omran, A. R. Al-Harbi, Mahmoud A. Wahb-Allah, Mahmoud Nadeem, Ali Al-Eter
Turkish Journal of Agriculture and Forestry
Low quality water for irrigation can impose a major environmental constraint to crop productivity. Effects of water quality, irrigation system, irrigation rates, and type of amendment on the yield and quality of tomato plants were investigated during the 2 growing seasons of 2005/2006 and 2006/2007. Two water quality treatments (fresh water with electrical conductivity (EC) of 0.86 dS m^{-1}, and saline water with EC of 3.6 dS m^{-1}), 2 drip irrigation systems (surface and subsurface), 3 irrigation rates (2, 4, and 6 L h^{-1}) and 3 amendment types (clay deposit, and organic matter and without amendment) were applied. The results …
Evaluation Of Fertilizing Schemes For Direct-Seeding Rice Fields In Taihu Lake Basin, China,
2010
TÜBİTAK
Evaluation Of Fertilizing Schemes For Direct-Seeding Rice Fields In Taihu Lake Basin, China, Yong Li, Lin Zhang Yang, Chao Wang
Turkish Journal of Agriculture and Forestry
Field experiments were performed to identify an effective fertilizing scheme for direct-seeding rice (DSR) fields in the Taihu Lake Basin in east China. Based on local traditions, 3 typical fertilizing schemes (FS-1, FS-2, and FS-3) were evaluated, in consideration of ensuring a certain rice yield and relatively low nitrogen (N) loss. The base, seedling, tillering, jointing, and panicle fertilizers for FS-1 were all 20% of 270 kg N ha^{-1}, those for FS-2 were 30%, 30%, 0%, 25%, and 15% of 270 kg N ha^{-1}, and 15%, 20%, 25%, 20%, and 20% of 220 kg N ha^{-1} for FS-3, respectively. The …
Determination Of Gene Escape And Fruit Quality Characteristics In Transgenic Melon (Cucumis Melo L. Var. Inodorus),
2010
TÜBİTAK
Determination Of Gene Escape And Fruit Quality Characteristics In Transgenic Melon (Cucumis Melo L. Var. Inodorus), Yeşi̇m Yalçin Mendi̇, Nebahat Sari, Asi̇ye Akyildiz, İlknur Solmaz, Ceren Ünek, Okan Özkaya, Sedat Serçe
Turkish Journal of Agriculture and Forestry
Gene escape and fruit quality characteristics of transgenic melons (Cucumis melo L. var inodorus cv. 'Kirkagac 637') resistant to zucchini yellow mosaic virus (ZYMV) and control plants were investigated under screenhouse conditions. No significant differences were observed between transgenic and transgenic × control genotypes, with regard to rind thickness, fruit cavity length, fruit cavity width, total soluble solids, pistil scar diameter, and peduncle length. Fruit characters, including fruit weight, fruit width, fruit length, fruit flesh thickness, and peduncle diameter were significantly different. These results indicate that transgenic × control genotypes had higher values than transgenic (T4 and T20) genotypes, regarding …
The Effects Of Ethanol-Dissolved Propolis On The Storage Of Grapefruit Cv. Star Ruby,
2010
TÜBİTAK
The Effects Of Ethanol-Dissolved Propolis On The Storage Of Grapefruit Cv. Star Ruby, Ahmet Erhan Özdemi̇r, Eli̇f Ertürk Çandir, Mustafa Kaplankiran, Emi̇ne Mi̇ne Soylu, Nuray Şahi̇nler, Azi̇z Gül
Turkish Journal of Agriculture and Forestry
Propolis has a strong antimicrobial effect and limits the growth of microorganisms. This study was carried out to determine the effect of propolis on the storage life of Star Ruby grapefruit. Fruits were obtained from Mustafa Kemal University, Faculty of Agriculture, Dörtyol Experimental Research Station, Dörtyol, Hatay, Turkey. Fruits were dipped in ethanol-extracted propolis (EEP) in various concentrations (1%, 5%, and 10%) immediately after harvest and then stored at 8 °C and 90% relative humidity for 6 months. The effects of propolis on the incidence of physiological disorders and fungal decay, and some fruit quality characteristics (weight loss, fruit juice …
Organic Materials: Sources Of Nitrogen In The Organic Production Of Lettuce,
2010
TÜBİTAK
Organic Materials: Sources Of Nitrogen In The Organic Production Of Lettuce, Maja Manojlovic, Ranko Cabilovski, Martina Bavec
Turkish Journal of Agriculture and Forestry
This paper presents the results of 2 experiments: an incubation experiment and a subsequent field experiment. An incubation experiment was set up in order to determine the mineralization potential of different organic materials (OMs) (well-rotted farmyard manure [FTM], guano [G], soybean seed [S], and forage pea seed [P]), the kinetics of mineral nitrogen (N) release, and the correlation between OM content and the quantity of mineralized N. The results of the incubation experiment were checked under field conditions in which different OMs were used as N sources for lettuce (Lactuca sativa L.). The highest mineralization rate constant k (0.127 day^{-1}) …
Changes In Distribution Patterns Of Soil Penetration Resistance Within A Silage-Corn Field Following The Use Of Heavy Harvesting Equipments, Ekrem Lütfi̇ Aksakal, Taşkin Öztaş
Turkish Journal of Agriculture and Forestry
Soil compaction caused by heavy wheeling reduces water infiltration, root development, and yield, and increases bulk density and soil strength. The objective of this study was to determine changes in spatial variability patterns of soil penetration resistance before and after using the silage machine in a corn-growing field. Soil penetration resistance was measured in a 100 × 400 m field with 10 m intervals just before and after harvesting. Measurements were taken from the 20 cm top layer on rows and inter-rows throughout each transect. The mean penetration resistance of 1353 measurements before and after harvesting was 2097 and 3116 …
Tolerance Of Brown-Rot And Dry-Rot Fungi To Cca And Acq Wood Preservatives,
2010
TÜBİTAK
Tolerance Of Brown-Rot And Dry-Rot Fungi To Cca And Acq Wood Preservatives, Coşkun Köse, Sai̇p Nami̇ Kartal
Turkish Journal of Agriculture and Forestry
Copper remains the primary biocide component used today to protect wood. Increased interest in the use of non-arsenic copper-based wood preservatives has also led to increased studies on copper-tolerant decay fungi. Oxalic acid production by brown-rot fungi is proposed as one mechanism of copper tolerance. This study evaluated oxalic acid production and copper losses from ACQ- and CCA-treated Pinus sylvestris L. and Populus × euramericana I 214 wood by brown-rot fungi: Postia placenta, Gloeophyllum trabeum, Tyromyces palustris, and 2 strains of Serpula lacrymans. There was no clear linear correlation among mass losses, oxalic acid production, or copper losses in most …
