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ARS Home » Southeast Area » Tifton, Georgia » Crop Genetics and Breeding Research » Research » Publications at this Location » Publication #326343

Research Project: Genetic Improvement of Maize and Sorghum for Resistance to Biotic Stress

Location: Crop Genetics and Breeding Research

Title: Screening for insect and disease resistance and aflatoxin accumulation in experimental maize hybrids

Author
item Ni, Xinzhi
item XU, WENWEI - Texas A&M University
item Williams, William - Paul

Submitted to: Entomological Society of America Regional Meeting Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 1/13/2016
Publication Date: N/A
Citation: N/A

Interpretive Summary: not required

Technical Abstract: In order to develop new maize germplasm lines with resistance to multiple insect pests, disease, and aflatoxin accumulation in temperate region, a set of new experimental hybrids was made using exotic tropical and subtropical maize inbred lines. The evaluation of these breeding crosses for insect and disease resistance, and aflatoxin contamination was conducted in 2014 and 2015. The experiment utilized a randomized complete block design with three replications. Fall armyworm [Spodoptera frugiperda (J.E. Smith)] and corn earworm [Helicoverpa zea (Boddie)] resistance was screened with using commercial transgenic maize hybrids as controls. Fall armyworm and corn earworm resistance, and aflatoxin contamination varied among the breeding crosses. The best crosses with good insect resistance and low aflatoxin level will be advanced for germplasm development.