Authors: Beckwith, R. C.; Kemp, W. P.

Source: Forest Science, Volume 30, Number 3, 1 September 1984 , pp. 743-746(4)

Publisher: Society of American Foresters

Abstract:

Models were developed for Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco) and grand fir (Abies grandis (Dougl. ex D. Don) Lindl.) to predict shoot growth from degree-days with the logistic growth function. Shoot growth differences were found between these two species. Shoot elongation and western spruce budworm (Choristoneura occidentalis Free.) development were correlated with degree-days above 5.5°C. Forest Sci. 30:743-746.

Keywords: Phenology; degree-days; modelling; western spruce budworm; Choristoneura occidentalis

Document Type: Miscellaneous

Affiliations: 1: Research Assistant, College of Forestry, Wildlife and Range Sciences, University of Idaho, Moscow, ID 83843

Publication date: 1984-09-01

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