Incorporation of Exotic Germplasm Into Adapted Maize Synthetics to Improve Grain Yield and Multiple Leaf Blight Resistance (Selection Response, Zea Mays, Quantitative Genetics, Corn)

Population testcrosses to FRB73 and to FRMo17 of maize (Zea mays L.) populations containing 0, 25, 50, and 100% exotic germplasm, 80 to 100 random S(,1) families from each population, and the populations per se were evaluated for grain yield and aggregate leaf disease resistance. One cycle of divergent S(,1) family selection for each trait was conducted in the adapted, BC(,1)F(,2), F(,2), and exotic populations for three sets of crosses. Several suggested estimators of favorable alleles (i.e. Dudley's statistics (1p(,1)u, 1p(,1)u(,adj)), minimum upper-bound (m(UBND)/2), and predicted three-way (PTW/2)) were used in conjunction with other data to identify the most appropriate foundation population in which to initiate selection for grain yield.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Agronomy

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Greder, Rodney Richard

• Agriculture, Agronomy

Identifier

(UMI)AAI8623307

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/71624