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Promotion of Flowering in Young Larix laricina Grafts by Gibberellin A4/7 and Root Pruning

Problem Addressed: Breeding trees

Goal(s)/Objective(s): Use of plant growth regulators to promote flowering for the breeding of trees

Key Findings: Grafted scions from mature trees responded significantly better to GA4/7 + RP than did seedling scions.

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Relationship of Species Composition to Habitat Types on Mountain Slopes in Western Maine

Problem Addressed: Composition of forested mountain slopes in western mountain biophysical region of Maine and how it is effected by soil/site properties

Goal(s)/Objective(s): 1. Determine if a system of habitat types (HT's), developed for the White Mountain National Forest of New Hampshire, accurately describes the soil/site characteristics of mountain slopes in western Maine; and 2. to determine if species composition is similar on corresponding HT's, in Maine and New Hampshire.

Key Findings: Tree species composition varies among the HT's observed on mountain slopes in western Maine. The composition of understory herbaceous and woody vegetation did not appear to differ across HT's.

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An Initial Analysis to Determine the Most Feasible Cable Logging System for Korea

Goal(s)/Objective(s): Payload analyses were conducted under the constraints identified.

Key Findings: The medium yarder, having a 9-15m tower was optimal for study areas.

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Evaluation and comparison of biomass estimates for live trees in Maine

Problem Addressed: Variation in predicted biomass from alternative approaches

Goal(s)/Objective(s): Compare the most common methods by species, stand, and county levels

Key Findings: Biomass differs dramatically depending on the approach and spatial level examined

Recommendation: Treat biomass estimates with caution and use method that is best documented

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A classification for rating the resistance capacity of spruce and balsam fir to budworm damage

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history of old outbreaks

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Natural-control factors affecting the spruce budworm

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Marketing guide for spruce fir and spruce budworm damaged timber (1977)

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Outbreaks of the western spruce budworm in the American northern rocky mountain area from 1922-1971

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Mortality of overstory trembling aspen in relation to outbreaks of the forest tent caterpillar and spruce budworm

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