Publication Date:
1980-09-01
Description:
Advance growth of seedlings and seedling sprouts is necessary to regenerate certain hardwood species naturally. Also, measurements of abundance, size, and age will help guide silvicultural practices. Root age of advance hardwood regeneration beneath tree canopies is difficult to determine, especially for seedling sprouts. In an attempt to find an easier yet satisfactory method, the use of variables such as root diameter and other tree, stand, and site characteristics were considered. Future predicted values of root age using only root diameter generally were poor, being only within ±6 years or more (95% confidence limits for individual future values (CLI)) for most of the eight species studied. Prediction models for seedling sprouts were then built using variables in addition to root diameter. The prediction of root age was improved. For most species, future root age values could be predicted to within ±4 or ±5 years (CLI), with root diameter and stem age generally contributing the most to R2.
Print ISSN:
0045-5067
Electronic ISSN:
1208-6037
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
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