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1 edition of Maturity indices for grand fir cones found in the catalog.

Maturity indices for grand fir cones

Robert D. Pfister

Maturity indices for grand fir cones

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Published in Ogden .
Written in English


Edition Notes

SeriesU.S. Forest Service. Intermountain Forest and Range Experiment Station. U.S. Forest Service research note INT-58
The Physical Object
Pagination7 p.
ID Numbers
Open LibraryOL25602699M


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Maturity indices for grand fir cones by Robert D. Pfister Download PDF EPUB FB2

A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Abstract. This chapter summarizes current technology concerning cone collection and seed processing, testing, storage, and stratification for the six major conifer species—Douglas-fir, ponderosa pine, lodgepole pine, noble fir, white fir, and western hemlock—produced as seedlings in Northwest bareroot by: Seasonal growth patterns and water balance of first- and second-year strobili and seeds of Pinus resinosa Ait.

were studied. Strobili emerged from the bud in. pine, and perhaps grand fir). This ability and its longevity ( to years) permit it to remain as a stand compo- nent for several centuries following major disturbance. Grand Fir (A bies grandis) An individual, mature grand fir can resist low to moder- ately severe fires primarily because of its moderately thick Size: 3MB.

daily trips would be impractical. Artificial ripening of cones is a possible way of lengthening the cone collection period. Of nine treatments tested in a study of maturity indices for grand fir in northern Idaho, all except one allowed further ripening of immature cones.

The best treatment for cones collected 1 month prior to. If subalpine fir-white spruce stands reach a decadent, late-successional stage (> years in west-central Alberta), white spruce abundance may decline while subalpine fir increases [97,].

The rate of succession from lodgepole pine to spruce-subalpine fir depends on initial postfire stand composition and moisture conditions.

The variety glauca is a principal species in three forest cover types: Interior Douglas-Fir (Type ), Western Larch (Type ), and Grand Fir (Type ). It is a minor species in five types: Engelmann Spruce-Subalpine Fir (Type ), White Fir (Type ), Western White Pine (Type ), Aspen (Type ), and Lodgepole Pine (Type ).

More info for the terms: basal area, density Western larch is a fast growing, long-lived, deciduous Maturity indices for grand fir cones book native to alpine and subalpine forests of the northwestern United States and adjacent Canada [4,45,].Trees over years old have been reported [80,].One of the world's largest larches, western larch typically grows to feet tall ( m) but can be.

The purpose of this study was to develop a suitable pretreatment and incubation temperature for testing the germination of grand fir (Abies grandis (Dougl.) Lindl.) seed. The germination Maturity indices for grand fir cones book of this species varies with different seedlots of different seed years and of Maturity indices for grand fir cones book origins.

Temperature is very significant in the germination of this species. Of those incubation. Forest insects: a text-book for the use of students in forest schools, colleges, and universities, and for forest workers / (New York, London: McGraw-Hill Book Company, inc., ), by Rennie W.

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Observers who have wondered at Spruce and Pir Thrive on pxoc sed Plots: the in which cut-oter spruce "stands in the northeast are replaced by a much larger proportion of fir in the new growth, and.

Maturity indices for grand fir cones book have at the same time remarked upon the fondness our red squirrels show for spruce seed are urged to put two and two together, or.

Condition indices among Crimson Finches are repeatable but do not predict reproductive success or survival. Maturity indices for grand fir cones book Taff, C.*; Breeding density and spatial distribution of nests constrain the strength of sexual selection in a warbler.

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14 field studies of seed biology documented using the methods prescribed in the Forest Practices Code Soil Conservation Surveys Guide-book () (Appendix C). When a stand is present on the site, then the de-scription should include an estimate of tree species composition based on basal area.

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The white pine weevil Pissodes strobi (Peck) (Coleoptera: Curculionidae) is a major pest in spruce plantations in western Canada. Larvae, mining down the axis of the tree, girdle the leader killing at least 2 and sometimes up to 4 years' growth.

Existing knowledge of the biology and behaviour of P. strobi has been derived mostly from studies in eastern white pine and Sitka spruce hosts Cited by: 4. White spruce is native to the United States and Canada [,]. It is primarily a boreal species occurring throughout much of Alaska and Canada, although it extends into the Great Lakes and the northeastern United States.

Isolated populations occur in Montana, Wyoming, and South Dakota.