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Effects of megagametophyte removal on DNA yield and early seedling growth in coastal Douglas-fir

Creator:: Krutovskii, K. V., Vollmer, S. S., Sorensen, F. C., Adams, W. T., and Strauss, S. H.
Abstract:: Stratified seeds of coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) were germinated, sown in soil, and seed coats and megagametophytes were removed at various stages of early seedling development. Yield and quality of DNA extracted from the megagametophytes were related to several morphological traits of the seedlings after 2...
Resource Type:: Article
Full Text:: . 130(2): 79-85. Sommer H.E., and Brown, C.L. 1980. Embryogenesis in tissue cul- tures of sweetgum. For

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Creator:: Pyare, Sanjay and Longland, William S.
Abstract:: During 1997–1998, we investigated the influence of both the relative abundance of truffles, preferred food items, and microhabitat structure on the occurrence of northern flying squirrels (Glaucomys sabrinus Shaw) in oldgrowth forest habitat of the Sierra Nevada Range, U.S.A. Following live-trapping sessions, we searched the forest floor for truffle diggings...
Resource Type:: Article
Full Text:: , truffles, and microhabitat structure in Sierra Nevada old-growth habitat Sanjay Pyare and William S

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Creator:: Pyare, Sanjay and Longland, William S.
Abstract:: During 1997–1998, we investigated the influence of both the relative abundance of truffles, preferred food items, and microhabitat structure on the occurrence of northern flying squirrels (Glaucomys sabrinus Shaw) in old-growth forest habitat of the Sierra Nevada Range, U.S.A. Following live-trapping sessions, we searched the forest floor for truffle diggings...
Resource Type:: Article
Full Text:: , truffles, and microhabitat structure in Sierra Nevada old-growth habitat Sanjay Pyare and William S

Genetic variation in drought hardiness of coastal Douglas-fir seedlings from British Columbia

Creator:: Anekonda, T. S., Lomas, M. Christine, Adams, W. T., Kavanagh, Kathleen L., 1955-, and Aitken, S. N.
Abstract:: Abstract: Genetic variation in drought hardiness traits and their genetic correlations with growth potential and17re1c6overy traits were investigated in 39 full-sib families of coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) from southwestern British Columbia. Seedlings of these families were grown in raised nursery beds and subjected to three moisture...
Resource Type:: Article
Full Text:: or light-green, 41–60% damage; yellowish to brown, 61–80% damage; brown to brittle, 81–100% damage

Spatial and temporal quantification of forest residue volumes and delivered costs

Creator:: Wells, Lucas A., Chung, Woodam, Anderson, Nathaniel M., and Hogland, John S.
Abstract:: Growing demand for bioenergy, biofuels, and bioproducts has increased interests in the utilization of biomass residues from forest treatments as feedstock. In areas with limited history of industrial biomass utilization, uncertainties in the quantity, distribution, and cost of biomass production and logistics can hinder the development of new bio-based industries....
Resource Type:: Article
Full Text:: delivered costs Lucas A. Wells, Woodam Chung, Nathaniel M. Anderson, and John S. Hogland Abstract: Growing

Genetic variation in cold hardiness of Douglas-fir in relation to parent tree environment

Creator:: Balduman, Lisa M., Aitken, S. N., Harmon, M., and Adams, W. T.
Abstract:: The extent to which parent trees within breeding zones of coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) are locally adapted to their native environments was evaluated. Forty families from each of one Coastal and one Cascade breeding population in Oregon were assessed for cold hardiness and growth phenology, and...
Resource Type:: Article
Full Text:: date when brown bud scales first became visible at the branch tip. Both BB (1993, 1994) and BS (1992

Leaf litter chemistry controls on decomposition of Pacific Northwest trees and woody shrubs

Creator:: Valachovic, Y. S., Caldwell, B. A., Cromack Jr., K., and Griffiths, Robert P.
Abstract:: The effects of initial leaf litter chemistry on first-year decomposition rates were studied for 16 common Pacific Northwest conifers, hardwoods, and shrubs at the H.J. Andrews Experimental Forest in western Oregon. Leaf litters were analyzed for C, N, P, K, Ca, Mg, proximate organic fractions (nonpolar, polar, acid-hydrolyzable extractives, acid-hydrolyzable...
Resource Type:: Article

Decomposition and nitrogen release from decomposing woody roots in coniferous forests of the Pacific Northwest: a chronosequence approach

Creator:: Chen, Hua, Harmon, Mark E., and Griffiths, Robert P.
Abstract:: Decomposition of woody roots in Sitka spruce (Picea sitchensis (Bong.) Carrière), Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), and ponderosa pine (Pinus ponderosa P. Laws. ex C. Laws.) dominated forests in Oregon, U.S.A. was studied using a chronosequence. Roots of five coniferous species were excavated from stumps with ages up to 46...
Resource Type:: Article
Full Text:: , Puerto Rico. Plant Soil, 150: 233–245. Cairns, M.A., Brown, S., Helmer, E.H., and Baumgardner, G.A. 1997

Nutrient stores and dynamics of woody detritus in a boreal forest: modeling potential implications at the stand level

Creator:: Krankina, Olga N., Harmon, Mark E., and Griazkin, Anatolii V.
Abstract:: Concentrations of 14 chemical elements (Al, B, C, Ca, Cu, Fe, K, N, Mg, Mn, Na, P, S, Zn) were measured in wood and bark of 126 sample trees representing different stages of decomposition in three major tree species of northwestern Russia: Scots pine (Pinus sylvestris L.), Norway spruce (Picea...
Resource Type:: Article
Full Text:: . Griazkin Abstract: Concentrations of 14 chemical elements (Al, B, C, Ca, Cu, Fe, K, N, Mg, Mn, Na, P, S

Effects of stand density on the growth of young Douglas-fir trees

Creator:: Woodruff, David R., Bond, Barbara J., Ritchie, Gary A., and Scott, William
Abstract:: The objectives of this study were (i) to provide further evidence of a positive correlation of stand density with early growth of coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii); (ii) to determine when after planting the positive growth response occurs and how long it lasts; and (iii) to use...
Resource Type:: Article
Full Text:: stable isotopes of carbon to test whether the mechanism(s) responsible for the positive growth response

ScholarsArchive@OSU

Effects of megagametophyte removal on DNA yield and early seedling growth in coastal Douglas-fir

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Genetic variation in drought hardiness of coastal Douglas-fir seedlings from British Columbia

Spatial and temporal quantification of forest residue volumes and delivered costs

Genetic variation in cold hardiness of Douglas-fir in relation to parent tree environment

Leaf litter chemistry controls on decomposition of Pacific Northwest trees and woody shrubs

Decomposition and nitrogen release from decomposing woody roots in coniferous forests of the Pacific Northwest: a chronosequence approach

Nutrient stores and dynamics of woody detritus in a boreal forest: modeling potential implications at the stand level

Effects of stand density on the growth of young Douglas-fir trees

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