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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Search results

Showing 421 to 430 of 12425 (0.02 seconds)

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421

Cost of Producing Crops in the Irrigated Southwest, Part I - Arizona

Wright, N. Gene, Stubblefield, Thomas M. 12 1900 (has links)
No description available.
Agriculture -- Arizona.
422

A Comprehensive Analysis of a Major Storm and Associated Flooding in Arizona

Thorud, David B., Ffolliott, Peter F. 05 1900 (has links)
No description available.
Agriculture -- Arizona.
Floods -- Arizona.
Rainstorms -- Arizona.
Floods.
Rainstorms.
Arizona.
423

Cost of Producing Crops in the Irrigated Southwest, Part III - Nevada

Wright, N. Gene, Barmettler, Edmund R., Stubblefield, Thomas M., Swope, Daniel A. 06 1900 (has links)
No description available.
Agriculture -- Arizona.
424

Technical Change, Protectionism, and Market Structure: The Case of International Trade in Fresh Winter Vegetables

Bredahl, Maury E., Hillman, Jimmye S., Rothenberg, Robert A., Gutierrez, Nicolas 08 1900 (has links)
No description available.
Agriculture -- Arizona.
425

Cost of Producing Crops in the Irrigated Southwest, Part V - Utah

Wright, N. Gene, Davis, Lynn H., Stubblefield, Thomas M., Swope, Daniel A. 01 1900 (has links)
No description available.
Agriculture -- Arizona.
426

Mixed Land Uses and Residential Property Values in the Tucson Metropolitan Region: Implications for Public Policy

Cao, Than Van, Cory, Dennis C. January 1981 (has links)
No description available.
Agriculture -- Arizona.
427

Estimating Congestion Costs and Quality-Adjusted User-Fees: An Indexation Approach

Cory, Dennis C., Barkley, David L., Lundgaard, Eric January 1983 (has links)
No description available.
Agriculture -- Arizona.
428

Effectiveness of Instructional Materials Altered for Students with Varying Reading Abilities

McCormick, Floyd G., Cox, David E., Miller, Glen M. January 1990 (has links)
No description available.
Agriculture -- Arizona.
429

Program Promotes Rural Leadership

03 1900 (has links)
No description available.
Agriculture -- Arizona
430

SYSTEMATICS AND BIOLOGY OF THE CROP ASSOCIATED SPECIES OF POLYNEMA (HYMENOPTERA: MYMARIDAE) IN SOUTHERN ARIZONA (PARASITOIDS, PARASITE, ALFALFA HOPPERS, LEAFHOPPERS).

LAKIN, KENNETH RYAN. January 1985 (has links)
Egg parasitoid wasps of the genus Polynema (Hymenoptera: Mymaridae) were collected over a 4-year period from crop-associated areas in southern Arizona. Seven morphologically distinct species were collected with 3 species identified. Evidence was found for the existence of an additional sibling species. Taxonomic characters currently used for this genus were evaluated for stability when the parasitoids develop in alternate hosts and some were found to be unreliable. A key to the Polynema species from Arizona were composed utilizing new characters. Biological studies were carried out on 5 of these species to determine host species, longevity, developmental time, and potential fecundity. Three of these species exhibit the potential for sympatric parasitization of the eggs of the threecornered alfalfa hopper. A 2-year study of the seasonal distribution of these parasitoids in alfalfa fields in southern Arizona was carried out.
Wasps -- Arizona.

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