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Ribonucleic acid synthesis and accumulation of food reserves in immature ovules of eastern white pine in relation to embryo development /Shafer, Thomas Howard January 1975 (has links)
No description available.
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Firewood and Bark Beetles in the SouthwestDeGomez, Tom, Loomis, Beverly 09 1900 (has links)
2 pp. / Pine Bark Beetles, Cypress Bark Beetles / Life cycle of the bark beetles and how to detect in firewood. Source of firewood is important. Dry wood is a poor host for bark beetles. Most bark beetles are host specific. Insecticides should not be applied to firewood to prevent bark beetle infestation.
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Firewood and Bark Beetles in the SouthwestDeGomez, Tom, Loomis, Beverly 09 1900 (has links)
Revised / 2 pp.
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The influence of herbaceous vegetation on coniferous seedling habitat in old field plantations /Newton, Michael. January 1964 (has links)
Thesis (Ph. D.)--Oregon State University, 1964. / Typescript. Mounted photographs. Includes bibliographical references (leaves 99-109). Also available on the World Wide Web.
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Mediation of conifer root growth by mycorrhizal fungi and plant growth regulatorsScagel, Carolyn F. 13 December 1993 (has links)
Many mycorrhizosphere microorganisms can produce
plant growth regulating compounds in vitro. Plant growth
regulating compounds are known to mediate root growth and
development. In reforestation practices, conifer tree
seedling growth and survival are linked to rapid root
growth and development after outplanting. Multifactorial
experiments were conducted to document variations in
conifer seedling growth, survival and endogenous root
indole acetic acid (IAA) content as influenced by
exogenously applied plant growth regulators and
inoculation with ectomycorrhizal fungi capable of
differential in vitro IAA and ethylene production.
Capacity for in vitro IAA and ethylene production by
mycorrhizal fungal isolates was partially correlated to
levels of endogenous root IAA and root growth in
inoculated seedlings as well as field transplanted
nursery-grown seedlings. Although degree of correlation
usually varied with fungal isolate as well as conifer
species, IAA-mediated changes in root growth and seedling
survival could indirectly be attributed to in vitro fungal
plant growth regulator production capability.
Exogenous application of plant growth regulating
substances at different times during seedling growth and
development resulted in significant changes in growth,
survival and endogenous root IAA content of both
experimental seedlings and field transplanted nursery-grown seedlings. Although effects varied with conifer
species and stock types, IAA mediated increases in root
growth and survival are projected to be cost beneficial.
These results are not only indicative of the
complexity of interactions which can occur between
symbionts in the mycorrhizosphere but also suggest
potential methods for manipulating plant growth regulator
mediation of conifer root growth for practical purposes in
reforestation. / Graduation date: 1994
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Influence of forest-clearcut edges on fungal fruiting, litter decomposition and seedling growth in low elevation second-growth conifer forests in Western Washington /Sparks, Grace Beehler. January 2003 (has links)
Thesis (Ph. D.)--University of Washington, 2003. / Includes bibliographical references (leaves 145-160).
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Ordination and classification of Swiss and Canadian coniferous forests by various biometric and other methodsGroenewoud, Herman van, January 1965 (has links)
Thesis (doctoral)--Eidgenössischen Technischen Hochschule in Zürich, 1965. / Reprint of Ber. geobot. Inst. ETH, Stiftg. Rübel, Zürich 36, 28-102 (1965). Abstract also in German. Cover title. Includes bibliographical references (p. 92-94).
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Summer aspect of a high coniferous forest in the Chiricahua Mountains, ArizonaRobinson, Michael David, 1940- January 1968 (has links)
No description available.
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The phytosociology of the northern conifer-hardwoods of the Appalachian foothills in Southern Quebec.Bouchard, André Bernard January 1970 (has links)
No description available.
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Growth of plantation conifers and whiteleaf manzanita in southwest Oregon /Hanson, Thomas J. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 1997. / Typescript (photocopy). Includes bibliographical references (leaves 133-143). Also available on the World Wide Web.
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