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4 records found

Space requirements and Yields for Free Growing Douglas-fir Trees

Purpose

What density should be carried throughout various phases of the rotation to produce maximum returns from an acre of land? 60 trees free of competition were measured for DBH, total height, age @ breast height, and crown diameter. Yield table constructed,

Project Start Date

Project End Date

1956-06-01

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Currently Active

Agency

OSC- Forestry

Project Type

Research

Research Forest

N/A

Researcher

Brewer, James E.

Role

Collaborators

N/A

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Growth and Yield for Eastern and Western Oregon

Purpose

Site modification: 1. Artificially shade four branches/tree; 2. Prune off four branches/tree; 3. Clip all secondary branches off four primary branches/tree; 4. Destructively sample all four trees at termination of the experiment. Objective is t

Project Start Date

1984-03-08

Project End Date

1988-09-01

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Currently Active

Agency

OSU

Project Type

Research

Research Forest

N/A

Researcher

Maguire, Douglas A.

Role

Collaborators

Tappeiner, John

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213

Project ID

213

Stand Management Cooperative Type 3

Purpose

This is an installation in a region-wide cooperative designed to provide a continuing source of high quality data for researchers to study the long-term effects of silvicultural treatments and treatment regimes on stand development and wood quality.

Project Start Date

1988-12-01

Project End Date

1988-12-01

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Additional Information

Currently Active

Yes

Agency

OSU

Project Type

Research

Research Forest

N/A

Researcher

Hann, David

Role

Collaborators

Johnson, Debora; Maguire, Douglas A.

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273

Project ID

273

Growth inhibitors of Pacific Yew

Purpose

This project will try to determine if Pacific Yew produces compound such as diterpene, taxol, that regulate or alter the growth patterns of the soil microflora.The project will take soil samples from under an established yew tree, an established douglas f

Project Start Date

1991-10-11

Project End Date

1992-05-01

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Additional Information

Currently Active

Agency

Reed College

Project Type

Research

Research Forest

N/A

Researcher

Coate, Jeremy

Role

Collaborators

N/A

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298

Project ID

298