Inheritance and Genetic Correlations of Certain Traits in Modified Endosperm Texture Opaque-2 Maize (Zea Mays L.)

Modified endosperm texture may be useful in improving agronomic characteristics in opaque-2 (o2) maize (Zea mays L.). Five methods of quantifying endosperm modification were compared. Visual estimates of endosperm modification were found to be reliable and efficient means of rating modification. Using these estimates cytoplasmic effects on endosperm modification were studied in crosses of four o2 and six modified o2 lines, and xenia effects, genetic variance components, and genetic correlations were determined in a modified population Synthetic Disease Oil o2o2. Variance components were estimated from analyses of S(,1) and S(,2)/S(,1) families and S(,1) progeny means. Plant height, 100 kernel weight, kernel volume, kernel density, percent oil, percent lysine, percent protein, and lysine per 100 grams protein were determined in addition to endosperm modification.

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

• Beaver, Linda Wessel

• Agriculture, Agronomy

Language dc:language

eng

Identifier

(UMI)AAI8127548

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/68471