Diversifying Midwestern agriculture with perennial forages: a review of the benefits and barriers to forages in Iowa, and a genetic study of biofuel potential for reed canarygrass

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2007-01-01
Authors
Olmstead, Julia
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Charles Brummer
Jean-Luc Jannink
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Agronomy

The Department of Agronomy seeks to teach the study of the farm-field, its crops, and its science and management. It originally consisted of three sub-departments to do this: Soils, Farm-Crops, and Agricultural Engineering (which became its own department in 1907). Today, the department teaches crop sciences and breeding, soil sciences, meteorology, agroecology, and biotechnology.

History
The Department of Agronomy was formed in 1902. From 1917 to 1935 it was known as the Department of Farm Crops and Soils.

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1902–present

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  • Department of Farm Crops and Soils (1917–1935)

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Agronomy
Abstract

This thesis addresses first the socio-political, economic, and ecological consequences and causes of decreased forage production in Iowa, and then focuses on a breeding study related to the biofuel potential of reed canarygrass. In the first paper I review the agronomic, ecological, and economic benefits of forage incorporation into corn and soybeans rotations and then attempt to explain the socio-political reasons why forages are not grown on more Iowa farms. The second paper details an evaluation of reed canarygrass germplasm for biofuel traits. We evaluated the entire reed canarygrass germplasm collection available in the US for biomass and quality traits. We found significant variability for yield, height, and quality traits among germplasm of both US origin and from regions around the world. Higher yields from Central and Northern-European accessions as compared to Middle-Eastern and Eastern-European accessions suggest they would be the best candidates for inclusion in a direct breeding program.

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Mon Jan 01 00:00:00 UTC 2007