Breeding Oats Resistant to Puccinia graminis avenae

Authors

S. M. DietzFollow

Document Type

Research

Abstract

A test of some three hundred oat varieties showed some susceptible and some resistant to Puccinia graminis avenae. A study of the inheritance of resistance has been made by determining the response of hybrids of resistant x susceptible varieties. In this study, Iowa 105 was found to possess a marked resistance in addition to maturing early and thus escaping stem rust. Green Russian and Raukura were both resistant. The F₁ generation of Iowa 105 x Green Russian was resistant. The F₂ generation gave a wide ratio of several hundred resistant plants to one susceptible. In the F₁ progeny test the susceptible F₂ plants bred true for susceptibility, while numerous progenies from the resistant F₂ plants, segregated into resistant and susceptible plants. Such a wide ratio exists in the F₂ generation it is impossible to determine the true factorial basis of inheritance without further work. It is probable, however, that several factors are responsible for the inheritance of resistance to stem rust of oats. These data were further confirmed by the Raukura x Green Russian crosses.

Publication Date

1924

Journal Title

Proceedings of the Iowa Academy of Science

Volume

31

Issue

1

First Page

131

Last Page

131

Copyright

©1924 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Dietz, S. M. (1924) "Breeding Oats Resistant to Puccinia graminis avenae," Proceedings of the Iowa Academy of Science, 31(1), 131-131.
Available at: https://scholarworks.uni.edu/pias/vol31/iss1/24