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dc.contributor.advisorCatchot, Angus L., Jr.
dc.contributor.advisorCook, Donald R.
dc.contributor.authorBibb, Jenny Lee
dc.date2015
dc.date.accessioned2020-08-20T15:20:17Z
dc.date.available2020-08-20T15:20:17Z
dc.identifier.urihttps://hdl.handle.net/11668/19027
dc.description.abstractField corn, Zea mays L., has been introduced to the market with pyramided Bacillus thuringiensis (Bt) corn technologies. These technologies reduce kernel damage from ear feeding caterpillar pests, including corn earworm, Helicoverpa zea (Boddie). The first generation Bt traits in field corn demonstrated limited activity on corn earworm feeding on grain in ears. The pyramided corn technologies have greater cumulative protein concentrations and improved expression throughout the plant, so these corn traits should provide an effective management tool against these pests. In addition, reduced kernel injury may also have a direct effect on physical grain quality. The results for this trial showed no relationship between number of damaged kernels and yield was observed for corn hybrid expressing the Herculex®, YieldGard®, or Genuity VT Triple Pro® technologies. A significant relationship between both damaged kernels and test weight and damaged kernels and aflatoxin concentrations was observed in two technologies.
dc.publisherMississippi State University
dc.subject.otherBt
dc.subject.othergrain quality
dc.subject.otheryield
dc.subject.otherZea mays
dc.subject.othercorn
dc.subject.otherHelicoverpa zea
dc.subject.othercorn earworm
dc.titleImpact of Corn Earworm on Field Corn Yield and Grain Quality
dc.typeThesis
dc.publisher.departmentDepartment of Biochemistry, Molecular Biology, Entomology, and Plant Pathology
dc.publisher.collegeCollege of Agriculture and Life Sciences
dc.date.authorbirth1988
dc.subject.degreeMaster of Science
dc.subject.majorAgricultural Life Sciences
dc.contributor.committeeMusser, Fred R.
dc.contributor.committeeStewart, Scott D.
dc.contributor.committeeLeonard, Billy Rogers
dc.contributor.committeeAllen, Thomas W., Jr.


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