Temperature and the Diurnal Rhythm of Height Growth in Pines
Author: Lanner, Ronald M.
Source: Journal of Forestry, Volume 62, Number 7, 1 July 1964 , pp. 493-495(3)
Publisher: Society of American Foresters
Abstract:Digger and knobcone pines grew more during daytime than at night. Growth of both species was closely related to number of degree-hours above 38°F accumulated during the growth period. This relationship applied to day versus night growth, growth for consecutive 24-hour periods, and growth during the course of a single day. The evidence suggests that diurnal rhythms of pine shoot growth are temperature-induced, rather than being under the control of the light-dark cycle.
Document Type: Journal Article
Affiliations: Staff of the Pacific Southwest Forest and Range Expt. Sta., Forest Service, U. S. Dept. Agric., Berkeley, Calif.
Publication date: 1964-07-01
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