Location: Corn Insects and Crop Genetics Research
Project Number: 3625-21000-063-00
Start Date: May 13, 2013
End Date: May 12, 2018
Objective 1: We propose to carry out genomic selection in two maize populations. Breeding will be carried out using a modified Ear to row recurrent program, in which selection is based on models of phenotypic performance developed from genotypic and phenotypic data. Objective 2: Data from previous experiments will be combined and supplemented with new complementary data from replicated field trials grown at different plant densities. These data will allow us to determine plant density response. The relationship between plant density response and genotype by environment interactions will be characterized. Objective 3: Replicated field trials will be carried out different plant densities. Agronomic and morphological traits of the plants will be examined. Relationships between plant density and phenotypic traits will be determined. Objective 4: We will backcross gametophytic incompatibility loci into inbred lines and evaluate the ability of the resulting lines to exclude pollen. We will determine the stability of the pollen exclusion trait across different genetic backgrounds.