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Filtering by: Subject Plants -- Transpiration Non-Academic Affiliation Oregon State University. Graduate School Subject Douglas fir

The effect of internal and external moisture stress on the transpiration rate of Douglas-fir seedlings (Pseudotsuga menziesii (Mirb.) Franco)

Creator:

Unterschuetz, Phillip

Abstract:

The objective of this study was to examine the transpirational behavior of Douglas-fir seedlings from two origins,, each grown in two environments, and subject to a range of moisture stress. Forks and Goldendale, Washington were the mesic and xeric seed origins respectively. One-half of the seedlings from each origin was...

Resource Type:

Masters Thesis
The effect of age on transpiration rates of Douglas-fir seedlings (Pseudotsuga menziesii (Mirb.) Franco)

Creator:

Geppert, Rollin Roger

Abstract:

The objective of this study was to determine the effect of age on rates of transpiration by Douglas-fir seedlings. Seeds were collected from a xeric site (Goldendale, Washington) and a mesic site (Forks, Washington). The seedlings were grown in a cold frame and in a growth chamber for periods of...

Resource Type:

Masters Thesis