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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 53 for “"corn hybrids"”.
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A Phenological Study of Pioneer Corn Hybrids
User-friendly software was developed to illustrate experiment results. The main aspects covered in the software included experiment design, data input, storage, display, and analysis. Variations in processes of plant growth such as plant height, leaf area, internode, root growth and soil water …
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Evaluation of transgenic, Bt-containing corn hybrids
European corn borer (ECB; Ostrinia nubilalis (Hubner)) is a major pest of corn (Zea mays L.) throughout the Corn Belt. Methods employed to control or manage this insect, such as polygenic plant resistance, introduced ECB predators, and chemical insecticides, have had some successes but economic …
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Deer Preference for Corn Hybrids and Husbandry Practices During the Growing Season
Damage to field corn (Zea mays) by deer can be substantial and result in millions of dollars lost annually. Numerous methods exist to minimize deer depredation, but all have met with varying degrees of success. Currently, no information is available on preference of white-tailed deer (Odocoileus …
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Farmers' expectations of yield differences between triple-stack and conventional corn hybrids
In 1996, genetically modified corn was commercially available for the first time. Since then, seed technology companies have introduced new genetically modified hybrids, including ―stacked trait hybrids‖ containing multiple traits. Adoption rates of the genetically modified seed increased for …
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Response to planting density for corn hybrids grown under narrow and conventional row spacing
Over the past 80 years, increases in corn grain yield have occurred concomitantly with greater plant densities. In order to maintain steady improvements in grain yield, greater plant densities will need to be managed with population tolerant hybrids and narrower row spacing (e.g., 51 cm vs. 76 cm …
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Differential tolerance of corn hybrids to metolachlor and its regulation by the safener benoxacor
… thiocarbamate herbicide EPTC was examined in 11 corn hybrids. Tolerance to one of these herbicides does not imply similar tolerance to the other. Detoxication of these herbicides in plants is mediated via conjugation with glutathione (GSH). GSH levels from 1.8 to 2.4 µmol/g fresh weight were …
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Maize dwarf mosaic virus: purification, some physical properties, and yield of virus from several corn hybrids
… its interaction with susceptible and resistant corn hybrids, the purification of MDMV and its physical properties were re-evaluated and a rapid assay procedure was developed. The virus was purified by chloroform clarification and differential and sucrose density-gradient centrifugation. Corn …
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Variability in Starch Rheological and Thermal Properties From Commercial Corn Hybrids and Its Effect on Food Functional Properties
… the variability in a sample set of commercial hybrids and then identify different hybrids to determine relationships between starch rheological characteristics and food characteristics. Fifty-nine commercial corn hybrids grown in the same year at the same location were wet milled using a 100g …
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The Development of Diplodia Stalk Rot in Relation to Soluble Solids Content and Pith Condition in Corn Hybrids
Made available in DSpace on 2014-12-09T18:06:21Z (GMT). No. of bitstreams: 1 6500939.pdf: 4877103 bytes, checksum: 66bfcf28e878ead70fed37a659747924 (MD5) Previous issue date: 1964
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Protein, Phosphorus, and Energy Utilization in Young Chickens and Pigs as Affected by Microbial Phytase and Nutritionally -Enhanced Corn Hybrids
… improving protein-amino acid (AA) utilization in corn gluten meal (CGM) and soybean meal (SBM) for young chickens and pigs using slope-ratio growth, protein accretion, and protein efficiency ratio (g weight gain/g protein intake) assays. Regardless of evaluation method, microbial phytase did not …
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The Relative Efficiency of Replicates in Sweet Corn Hybrid Disease Nurseries and Posterior Probabilities as a Measure of Confidence in Assigning Sweet Corn Hybrids to Disease Reaction Categories
… ability of disease nurseries to classify hybrids into reaction categories and to calculate posterior probabilities with Bayes' theorem as a measure of confidence in assigning hybrids to reaction categories based on single or multiple trials. For each of three diseases (northern leaf …
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Processing and genetic effects on resistant starch in corn flakes
A laboratory scale corn flaking procedure was developed at a batch size of 100 g grits to evaluate the effects of processing and genetics on resistant starch content in corn flakes. Cooking (15 psig/121°C, 50 min), drying (100°C, 30 min), tempering (room temperature, 30 min) and toasting (200°C, 60 …
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Whole-plant corn silage and foliar fungicide: Strategies to improve dairy feed quality and profitability
… ingredient to include in TMR is whole-plant corn silage (WPCS), which is often sprayed with foliar fungicide during growth to decrease disease incidence. Therefore, the objective of this research was to determine if different corn hybrids treated with foliar fungicide and harvested as WPCS …
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Factors Affecting Starch Conversion to Ethanol in Dry Grind Corn Process
Factors affecting corn starch conversion to ethanol were evaluated to investigate the lack of correlation between ethanol concentration and corn starch content in dry grind corn process. Effect of amylose:amylopectin ratios and resistant starch in corn starch on ethanol concentration was evaluated …
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Measurement of transient moisture profiles and structural changes during the drying and cooling of maize using MRI
… drying and cooling processes. Three yellow dent corn hybrids were measured during drying and cooling. Four drying temperatures, 27, 49, 71, and 93$\sp\circ$C, were used. Magnetic resonance imaging (MRI) was applied to nondestructively acquire proton images from the corn kernels during drying and …
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Processing induced changes in phenolic concentration and antioxidant capacity of corn for production of corn flakes
… antioxidant capacity change during processing of corn into flakes, and to evaluate the effects of processing condition, corn genotype, and growing year on phenolics, with the ultimate goal of improving the nutritional quality of corn flakes. Three commercial corn hybrids grown in three different …
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Inheritance of Resistance of Maize to Infection by Barley Yellow Dwarf Viruses
Additionally, five sweet corn hybrids were tested for their reaction to inoculation with RMV-IL in 1992 and 1993. Symptoms were observed on four hybrids in 1992 but on none in 1993. Lowest levels of incidence of virus were detected in the May 1992 planting. The highest levels of incidence of virus …
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Yield Loss Studies With Anthracnose Stalk Rot of Corn
Twenty-four dent corn hybrids were inoculated in the first elongated stalk internode by injecting a spore suspension of Colletotrichum graminicola or Diplodia maydis to estimate potential yield loss. Experiments were done from 1978-1980 with a second location and D. maydis inoculations added in …
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