Campus Units
Agronomy
Document Type
Article
Publication Date
10-4-2016
Journal or Book Title
Plant Breeding
Volume
135
Issue
5
First Page
593
Last Page
597
DOI
10.1111/pbr.12397
Abstract
The allelic diversity (AD) project of the Germplasm Enhancement of Maize (GEM) programme utilized the double haploid (DH) breeding method to expedite development and release of lines derived from 300 exotic maize races. Using 18 races in this study, differential effects on haploid induction rates (HIRs) and doubling rates (DRs) by the recurrent parents PHB47 and PHZ51, the elevation that the race is traditionally grown at, and by the race itself were addressed in this study. Races from the AD project were grouped by elevation of their origin, high, middle or low altitude. Six races per elevation were randomly selected and backcrossed using both recurrent parents to generate 36 populations. Ten replications were randomized in a complete randomized design for two growing seasons. The recurrent parent effect was significant, with PHB47 having a higher HIR than PHZ51. Effect of elevation was significant with higher HIR associated with low-elevation origin, and race also proved to be significant. Effects of elevation, recurrent parent and race were not significant for DR.
Rights
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
Language
en
File Format
application/pdf
Recommended Citation
Smelser, Andrew; Gardner, Candice; Blanco, Michael; Lubberstedt, Thomas; and Frei, Ursula, "Germplasm enhancement of maize: a look into haploid induction and chromosomal doubling of haploids from temperate-adapted tropical sources" (2016). Agronomy Publications. 274.
https://lib.dr.iastate.edu/agron_pubs/274
Comments
This article is published as Smelser, Andrew, Candice Gardner, Michael Blanco, Thomas Lübberstedt, and Ursula Frei. "Germplasm enhancement of maize: a look into haploid induction and chromosomal doubling of haploids from temperate‐adapted tropical sources." Plant Breeding 135, no. 5 (2016): 593-597. doi: 10.1111/pbr.12397. Posted with permission.