Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Creator Buchanan, Shepard C. Academic Affiliation Botany and Plant Pathology Decade 2000-2009

Sweet corn decline syndrome in Oregon's Willamette Valley

Creator:

Hoinacki, Elisabeth V.

Abstract:

For the past several years vegetable growers in Oregon's Willamette Valley have experienced reduced yields in their sweet corn plantings. We conducted studies to 1) describe the symptomology and etiology of the disease, 2) test a root rot rating system we developed to evaluate factors in the disease syndrome, and...

Resource Type:

Dissertation

Full Text:

............................. 98 Appendix C: Cultivar trial................................... 103 LIST OF FIGURES Figure Page
Hydromulch tackifier and sucrose effects on microbial nitrogen and Bromus tectorum biomass

Creator:

Perkins, Lora B.

Abstract:

There is growing interest in using nutrient manipulations to control invasive plants such as Brornus lectorurn L. (cheatgrass). Both labile (sucrose) and recalcitrant (straw and sawdust) carbon sources are added to the soil surface to reduce plant available soil N via soil microbial immobilization. However, the application rates used in...

Resource Type:

Masters Thesis

Full Text:

glasshouse was kept at 15-18 °C under natural light conditions. Pots were kept approximately at field
A taxonomic revision of Astragalus mokiacensis and allied taxa within the Astragalus lentiginosus complex of Section Diphysi

Creator:

Alexander, J. Andrew

Abstract:

North America, with over 400 species of Astragalus (Fabaceae), is one of three major centers of diversity, all of which comprise the majority of the nearly 1750 species of Astragalus worldwide. One of the most diverse species, Astragalus lentiginosus of Section Diphysi, is a polymorphic complex of over 40 varieties,...

Resource Type:

Dissertation

Full Text:

complex taxon such as Astragalus lentiginosus. Additional thanks go to the late R. C. Barneby and the