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

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/wh246v91b

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • 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 two, four, eight, and sixteen weeks. Although much interaction occurred between age, seed source, and growing condition, significant differences were delineated for each of the three variables. For both the Forks and Goldendale seedlings, the transpiration rates were not found to decrease significantly with increasing age. At a given age, four, eight, or sixteen weeks, the Forks seedlings grown in the cold frame, in general, had the highest rates of transpiration. The effect of seed source was found to be significant when the seedlings were grown in the cold frame. Under these conditions the seedlings from Forks, Washington, had a significantly higher rate than the seedlings from Goldendale, Washington. The effect of conditioning on transpiration resulted in the seedlings grown in a cold frame having a significantly higher rate than those grown in a growth chamber.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Language
Digitization Specifications
  • PDF derivative scanned at 300 ppi (256 B&W), using Capture Perfect 3.0.82, on a Canon DR-9080C. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2009-10-01T18:57:13Z (GMT). No. of bitstreams: 1 GeppertRollinRoger1968.pdf: 386454 bytes, checksum: 28375761e5cda4c5712b24100657ae49 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2009-10-01T18:57:13Z (GMT) No. of bitstreams: 1 GeppertRollinRoger1968.pdf: 386454 bytes, checksum: 28375761e5cda4c5712b24100657ae49 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2009-10-01T18:54:29Z (GMT) No. of bitstreams: 1 GeppertRollinRoger1968.pdf: 386454 bytes, checksum: 28375761e5cda4c5712b24100657ae49 (MD5)
  • description.provenance : Submitted by Digital Production (digitalproduc@gmail.com) on 2009-10-01T15:50:49Z No. of bitstreams: 1 GeppertRollinRoger1968.pdf: 386454 bytes, checksum: 28375761e5cda4c5712b24100657ae49 (MD5)

Relationships

In Administrative Set:
Last modified: 08/14/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items