3 edition of White spruce cone and seed production in interior Alaska, 1957-68 found in the catalog.
White spruce cone and seed production in interior Alaska, 1957-68
John C. Zasada
by Pacific Northwest Forest and Range Experiment Station in Portland, Or
Written in English
Includes bibliographical references (p. 11).
|Statement||by John C. Zasada and Leslie A. Viereck.|
|Series||United States. Pacific Northwest Forest and Range Experiment Station. Research note PNW -- 129., USDA Forest Service research note PNW -- 129.|
|Contributions||Viereck, Leslie A., Pacific Northwest Forest and Range Experiment Station (Portland, Or.)|
|The Physical Object|
|Number of Pages||11|
The effect of last summer’s () record-setting heat and drought is still being expressed by many trees throughout Michigan. A short drive around most parts of Lower Michigan will provide evidence of a bumper crop of cones on many spruce trees, especially white spruce, in yards and windbreaks (Photos ). White spruce (Picea glauca (Moench) Voss) cone crops were measured at five regional centers in southern and central Yukon for 30 years at one site from to and at four other sites during 9 to 11 years to select the best climatic model that uses cues from growing season temperature and rainfall to predict the size of cone evaluated six climatic models that use summer.
Zasada J C and Viereck L A White spruce cone and seed production in interior Alaska, –68 USDA Forest Service Research Note (Portland, OR: Pacific Northwest Forest and Range Experiment Station) Google Scholar. The white spruce (Picea glauca) is one of the most widely growing coniferous trees in North America, with a range all across the eastern United States and Canada, all the way to South Dakota where it is the state is one of the most popular Christmas tree choices too. It’s very hardy and easy to grow. Keep reading to learn more white spruce information, including tips on growing white.
White spruce cones are longer and pointier. set by a tree that stands near where the Tolovana River empties into the Tanana River in Interior Alaska. Alaska’s largest black spruce stands up against national competition. The U.S. record is a foot black spruce in Taylor County, Wisconsin, according to the National Register of Big Trees. White spruce is quite popular for windbreaks and for use in the Christmas tree trade. The wood is used for lumber and in pulp and paper production. Like many evergreens, it provides food and shelter for many birds and mammals. How to Grow. seed/gram. Stratification of tree seed occurs naturally outdoors through the winter.
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White spruce cone and seed production in Interior Alaska, [Portland, Or.]: Pacific Northwest Forest and Range Experiment Station,  (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors /.
Title White spruce cone and seed production in interior Alaska, White spruce cone and seed production in interior Alaska, USDA Forest Service, Research Note PNW Pacific Northwest Forest and Range Experiment Station, Portland, OR. 11 p. Zasada, J. C., M. Foote, F. Deneke, and R. Parkerson.
Case history of an excellent white spruce cone and seed crop in interior Alaska: cone and. White spruce cone and seed production in interior Alaska, / by John C. Zasada and Leslie A. : John C. Zasada. Insects caused serious damage to cones and seeds of white spruce during one of the five years of this study.
A new seed and cone insect, Pegohylemyia sp., was recorded for the first time from Alaska. This insect destroyed an average of 50% of the seeds per by: White spruce cone and seed production in interior Alaska, USDA Forest Service, Pacific NW, Forest and Range Experiment Station, Portland, OR.
Research note PNW, 11. In interior Alaska, where white spruce seed is their primary food, red squirrels harvested between 10% and 69% of cones during a "medium" cone production year.
One red squirrel may cache up to 16, cones per year. In mixedwood forest in Alberta, red squirrels harvested % ± % of the cone crop over a 3 year period. Picea glauca, the white spruce, is a species of spruce native to the northern temperate and boreal forests in North America.
1957-68 book Picea glauca was originally native from central Alaska all through the east, across southern/central Canada to the Avalon Peninsula in Newfoundland. It now has become naturalized southward into the far northern United States border states like Montana, Minnesota. Spruce Tree Reproduction & Seeds.
With their gray-green foliage and purple to brown cones, spruce trees are elegant additions to a garden. These conifers have thick needles that are easy to roll. John C Zasada Base de datos de todas episodio John C Zasada Estos datos libro es el mejor ranking. EPUB, libros electrónicos EBOOK, Adobe PDF, versión Moblile, ordenador portátil, teléfono inteligente es compatible con todas las herramientas que ♡ John C Zasada visitado hoy en ♡ certificado y suministrado tienen el potencial de aumentar sus conocimientos al leer.
A seed trap awaits for white spruce cone and seedfall. Traps are set out at the end of summer, and retrieved for seed counting in the spring. NPS Photo / Sarah Stehn. For each of 30 monitored trees, staff document yearly growth by measuring tree diameter and estimate overall cone production by counting cones produced in the current year (Figure 1).
Fruit, cone, nut, and seed descriptions. White Spruce has the smallest cones of any of the spruces, typically 1 to 2 inches long, cylindrical and pendulous, often clustered near the top of the tree. They are a medium green color throughout much of the summer, and turn brown in autumn and winter.
Cones scales are thin, rounded and have smooth margins. Postfire seed rain of black spruce, a semiserotinous conifer, in forests of interior Alaska Article (PDF Available) in Canadian Journal of Forest Research 39(8) August with Reads.
Insects can limit seed productivity at the treeline. Ryan G. Jameson, a b Andrew J. Trant, a c Luise Hermanutz a. a Department of Biology, Memorial University, St John’s, NL A1B 3X9, Canada.
b P.O. Port Mouton, NS B0T 1T0, Canada. c School of Environmental Studies, University of Victoria, P.O. BoxSTN CSC, Victoria, BC V8W 3R4. Irregulai" production of white spruce cone and seed in interior Alaska upland stands has been observed by Zasada ().
During one year period, seed fall for one white spruce stand exceeded seeds per square meter in 4 of these years. A spruce is a tree of the genus Picea / p aɪ ˈ s iː ə /, a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal regions of the Earth.
Picea is the sole genus in the subfamily s are large trees, from about 20–60 m (about 60– ft) tall when mature, and have whorled branches and conical form. White spruce (Picea glauca) and Lutz's spruce (Picea × lutzii), a hybrid between white and Sitka spruce (Picea sitchensis), dominate the study area.
We measured the pre- and post-outbreak density of spruce in 3 m × 80 m plots across the study area by recording all live trees and all dead trees > m tall in each plot. Get this from a library. Frost damage to white spruce cones in interior Alaska. [John C Zasada; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)].
How to propagate a spruce tree from seeds. The first thing you need to do is to buy the seeds or harvest them at the appropriate time. Harvesting seeds takes more time but less money than purchasing spruce seeds.
Collect seeds in mid-fall from a tree in your own yard or in a neighboring location with permission. Spruce seeds grow in cones, and. White spruce is a dominant tree of interior forests in Canada and Alaska and often an early colonizer in Good years of seed production may be years apart.
90 percent of the cone crop in Alaska. Seed predation by insects and small mammals such as deer mice, red-backed and meadow voles, chipmunks, and. years of cone crop failure in a mature white spruce forest in interior Alaska. The work was part of a study aimed at determining the ecological relationships of red squirrels to the production and supply of white spruce seed in interior Alaska.
Because red squirrels utilize large quantities of white 1 Financed by the U. S. Forest Service's Northern. The white spruce tree, also known as cat spruce and skunk spruce, is a coniferous tree found across North America.
Scientific Classification Kingdom Plantae Division Pinophyta Class Pinopsida Order Pinales Family Pinaceae Genus Picea Scientific Name Picea glauca Quick Information Other Names Canadian spruce, Black Hills spruce, Western white spruce, Alberta white spruce, Porsild spruce.Seed cones are the female fruits of conifer species, and a typical seed cone’s woody scales cover and protect the ripened ovules underneath them.
Seeds are impressed against the inner wall of each scale. In the case of our squirrel’s white spruce, there are two seeds per scale for a total of approximately seeds per cone.