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mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Matching loblolly pine sources to specific environments
  name:
    name part: Raley, Earl M.
    name part: 1960-
    role:
      role term: creator
  name:
    name part: van Buijtenen, J. P.
    role:
      role term: degree supervisor.
  name:
    name part: Gates, C. E.
    role:
      role term: degree committee member.
  name:
    name part: McKinley, C. R.
    role:
      role term: degree committee member.
  name:
    name part: Smith, J. D.
    role:
      role term: degree committee member.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: xx
    date issued: 1990
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xi, 106 leaves : illustrations ; 29 cm
  abstract: Ring widths during the years 1978 through 1987 were examined and compared for local and nonlocal sources of unimproved loblolly pine (Pinus taeda L.) as well as for two commercially available improved sources. Radial growth and survival were compared and contrasted for the unimproved and improved sources in two separate studies. Local sources were hypothesized to have larger radial growth than nonlocal sources during this period. Of the improved sources, the "superior" source was hypothesized to have larger radial growth during this period, but poorer survival than the drought hardy source. No significant differences in total radial growth were detected among unimproved sources. Total radial growth during the study period did differ significantly by test location. The largest total radial growth occurred at the test location deemed most severe in terms of drought hazard. Reduced stand density resulting from reduced survival was thought to contribute to the large total radial growth. However, correlation among these variables was not significant, providing no support for this hypothesis. No significant differences in total radial growth during the study period were indicated between the two improved loblolly pine types. However, the drought hardy type possessed the larger total radial growth regardless of planting location. No significant differences in total radial growth were observed among the sample tracts. Sample tracts varied tremendously in drought hazard. No significant differences in ring widths were observed among the unimproved or among the improved loblolly pine types during years of extreme drought. However, survival difference between the unimproved loblolly pine types was significant on East Texas sites with high drought potential. Survival of the two improved pine types was comparable among all tracts sampled. Differences in form, however, were readily apparent. The primary objective in this research was the development of modifications for the curren…
  note: Typescript (photocopy).
  note: Vita.
  note: "Major subject: Forestry."
  note: Ph. D. Texas A & M University 1990
  note: Includes bibliographical references.
  subject:
    geographic code: n-us-tx
  subject:
    topic: Loblolly pine
    topic: Seeds
    geographic: Texas
    topic: Testing
  subject:
    topic: Loblolly pine
    topic: Growth
  subject:
    topic: Loblolly pine
    topic: Drought tolerance
  subject:
    geographic: Texas
  subject:
    topic: Major forestry
  identifier: http://gateway.proquest.com/openurl
  identifier: http://proxy.library.tamu.edu/login
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    location:
      url: http://proxy.library.tamu.edu/login
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    location:
      url: http://gateway.proquest.com/openurl
  record info:
    record content source: TXA
    record creation date: 910516
    record change date: 20200904152531.0
    record identifier: in00001008719
    language of cataloging:
      language term: eng