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Filtering by: Committee Member Radosevich, Steven R. Remove constraint Committee Member: Radosevich, Steven R.

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Modeling purple nutsedge (Cyperus rotundus L.) growth : preliminary evaluation of light intensity, soil moisture and herbicide effects

Creator:

Amerasinghe, A. A. L.

Abstract:

Purple nutsedge [Cyperus rotundas L.) has been recognized as one of the most troublesome perennial weeds of agricultural lands in tropical and some temperate regions. This research sought to determine the effects of timing of herbicides, shading, and soil moisture on plant population growth and tuber production of purple nutsedge...

Resource Type:

Dissertation
Enhancement of the weed competitive ability of lowland rice (Oryza sativa L.) cultivars

Creator:

Ranasinghe, Lakshman L.

Abstract:

Most of the presently grown cultivars of rice (Oryza sativa L.) have poor competitive ability against weeds if compared with traditional cultivars. Therefore, effective weed control is an important but often costly and difficult management practice in rice crop production. If weed competitive ability of rice cultivars could be improved...

Resource Type:

Dissertation
Radiation-induced mutations in sweet cherry, (Prunus avium L.) cvs Napoleon and Bing

Creator:

Saamin, Shaharudin

Resource Type:

Dissertation
Three essays on meta-analysis, benefit transfer, and recreation use valuation

Creator:

Vista, Arvin B.

Abstract:

This dissertation consists of three essays on meta-analysis, benefit transfer and recreation use valuation. The first two essays were based on the sportsfishing valuation literature in the US and Canada while the third essay was based on a study site in the Philippines and selected study sites from the US....

Resource Type:

Dissertation
Effectiveness of protected area management in Thailand

Creator:

Maneesai, Ronasit

Abstract:

The main objectives of this study are to identify the nature of threats to protected areas and assess the effectiveness of protected area systems and management in Thailand, and to evaluate the use of conservation biology concepts in protected area management. The results from a survey of the heads of...

Resource Type:

Dissertation
Himalayan blackberry (Rubus armeniacus) and English ivy (Hedera helix) response to high intensity-short duration goat browsing

Creator:

Ingham, Claudia S.

Abstract:

The goal of this dissertation is to examine the effectiveness of high intensity-short duration goat browsing for the control of Himalayan blackberry (Rubus armeniacus) and English ivy (Hedera helix), two widespread noxious weeds in the Pacific Northwest. The effects of goat browsing on Himalayan blackberry vigor, as quantified by densities...

Resource Type:

Dissertation
Examination of imputation methods to estimate status and change of forest attributes from paneled inventory data

Creator:

Eskelson, Bianca N. I.

Abstract:

The Forest Inventory and Analysis (FIA) program conducts an annual inventory throughout the United States. In the western United States, 10% of all plots (one panel) are measured annually, and a moving average is used for estimating current condition and change of forest attributes while alternative methods are sought in...

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Dissertation

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Academic Affiliation

Horticulture3
Forest Engineering Resources and Management2
Forest Science1
Rangeland Ecology and Management1

Advisor

Crabtree, Garvin D.2
Borman, Michael M.1
Hailemariam, Temesgen1
Hayes, John P.1
Rosenberger, Randall S.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1987 to 2011

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Committee Member

Radosevich, Steven R.[remove]7
Appleby, Arnold P.2
Baggett, James R.1
Barrett, Tara M.1
Conklin, Frank1
more Committee Members »

Creator

Amerasinghe, A. A. L.1
Eskelson, Bianca N. I.1
Ingham, Claudia S.1
Maneesai, Ronasit1
Ranasinghe, Lakshman L.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1986 to 2010

View distribution

Decade

2010-20191
2000-20093
1990-19992
1980-19891

Degree Field

Horticulture3
Forest Resources2
Forest Science1
Rangeland Ecology and Management1

Degree Level

Doctoral7

Degree Name

Doctor of Philosophy (Ph.D.)7

Language

English [eng]7

License

All rights reserved4

Non-Academic Affiliation

Oregon State University. Graduate School7

Peer Reviewed

No6

Resource Type

Dissertation7

Rights Statement

In Copyright4
Copyright Not Evaluated3

Subject

Biodiversity conservation -- Thailand1
Blackberries -- Control -- Oregon1
Blackberries -- Effect of browsing on -- Oregon1
Echinochloa crusgalli -- Control1
English ivy -- Control -- Oregon1
more Subjects »

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