Location: Plant Science Research
Project Number: 6645-21000-030-00
Start Date: May 09, 2013
End Date: May 08, 2018
Exotic sources used for developing new breeding populations will be selected in cooperation with the Ames GEM (Germplasm Enhancement of Maize) coordinator and the GEM Technical Steering Group. Private company cooperators will make the initial crosses between commercial and exotic stocks, and each cooperator has agreed to conduct a specific set of evaluations (e.g. yield trials, abiotic or biotic stress, or breeding cross evaluations) along with evaluations conducted in North Carolina by the Raleigh GEM coordinator. New exotic germplasm sources will be evaluated in testcrosses and then crossed to either proprietary inbreds or formerly proprietary (ex-PVP) inbreds to develop new breeding crosses for further evaluation. These breeding crosses will then be self-pollinated for two generations in disease nurseries to enhance selection of the most promising genotypes, which will be testcrossed and evaluated in yield and disease trials for three seasons. In addition, less agronomically promising sources of exotic germplasm will be backcrossed to elite temperate inbred lines and inbred to create a set of 25% exotic/75% temperate lines that can be used for allele mining and gene discovery.