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Filtering by: Subject Wheat -- Diseases and pests -- Oregon -- Willamette River Valley

Assessment of impacts of Canada geese on wheat production

Creator:

Louhaichi, Mounir

Abstract:

Numbers of wild Canada geese (Branta canadensis) have increased dramatically during the past 30 years in the lower Columbia and Willamette Valley systems. The damage they cause by grazing and trampling plants can be substantial. The objectives of this research were to: 1) Develop methods that provide reliable estimates of...

Resource Type:

Masters Thesis
Specificity of quantitatively expressed host resistance to Mycosphaerella graminicola

Creator:

Krenz, Jennifer E.

Abstract:

The specificity of quantitative host resistance to plant disease has long been a controversial issue. We examined interactions between wheat (Triticum aestivum) and Mycosphaerella graminicola, causal agent of Septoria tritici blotch, to determine whether specific interactions occur between host and pathogen genotypes that could be involved in eroding quantitatively expressed...

Resource Type:

Masters Thesis