Monitoring growth progression through root collar diameter measurements


Four years of root collar diameter growth progression monitoring of 1+2 (1.5+1.5) and 3+0 black spruce (Picea mariana (Mill.) B.S.P.), 2+2 and 3+0 white spruce (Picea glauca (Moench) Voss), and 2+0 jack pine (Pinus banksianna (Lamb.)) are analyzed and discussed. The modified Weibull function provided excellent correlation coefficients for transplant stock (r 2 = 0.973 to 0.942) and for seedbed stock (r2 = 0.916 to 0.881). The application of these regression curves to the forecasting of stock size and quality is possible only while monitoring the growing season and noting the fluctuating properties of root collar diameter.
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Publication Forest Nursery Proceedings
Event Edmonton, Alberta - 1981
Author B.E. Polhill
Published 1982/01/01
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