Author： Dimock II Edward J.
Publisher： Society of American Foresters
ISSN： 0022-1201
Source： Journal of Forestry, Vol.62, Iss.4, 1964-04, pp. : 252-255
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Abstract
Progressive changes in bole circumference and total height were simultaneously measured in 10 Douglas-fir trees during the 1957 and 1958 growing seasons. At the start of each season, substantial increases in circumference began by mid-April and preceded comparable increases in height by approximately one month. Swelling or bursting of terminal buds did not seem to be an essential precursor to radial growth. Height growth was mostly complete by August, whereas apparent radial increments were still evident during October and November.
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