Monday, December 11, 2006 - 3:35 PM
0642

Correlation between ear-feeding insect damage and phenotypic traits in selected corn inbred lines

Xinzhi Ni, xni@tifton.usda.gov1, Matthew D. Krakowsky, mkrakowsky@tifton.usda.gov1, David Buntin, gbuntin@gaes.griffin.peachnet.edu2, Baozhu Guo, bguo@tifton.usda.gov1, Brian G. Rector, brector@ars-ebcl.org1, and Maurice E. Snook, MSnook@saa.ars.usda.gov1. (1) USDA-ARS, Crop Genetics and Breeding Research Unit, Coastal Plain Experiment Station, Tifton, GA, (2) University of Georgia, Department of Entomology, Griffin, GA

One hundred sixty four selected corn inbred lines from CIMMYT with known levels of silk maysin were evaluated in 2005 and 2006 for corn earworm and stink bug resistance.  The inbred line resistance to common smut was also assessed.  The correlation between all ear-feeding insect damage (or smut infection) and three phenotypic traits (i.e., silk maysin level, and husk extension and tightness) of corn plants was also examined and discussed.

 

 



Species 1: Lepidoptera Noctuidae Helicoverpa zea (corn earworm)
Species 2: Hemiptera Pentatomidae Euschistus servus (brown stink bug)
Species 3: Hemiptera Pentatomidae Nezara viridula (southern green stink bug)

[ Recorded presentation ] Recorded presentation

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