Effects of Crown Position and Plant Age on Jack Pine Long-Shoot Cuttings
Rooting success of long shoot cuttings of jack pine— Pinus banksiana Lamb.— was found to be influenced by crown location effects among 5-to 30-year-old trees. Despite some variation in response, mid to lower crown cuttings generally rooted more readily than upper crown cuttings. The highest rooting frequencies observed for 4-, 5-, 6-, 7-, and 10-year-old trees ranged from 45 to 75%, whereas cuttings from 30-year-old trees rooted at 28%. These results are encouraging in light of the general perception that jack pine is difficult to propagate by rooted cuttings, and they suggest that operational asexual propagation may be feasible. Tree Planters' Notes 47(3): 100-104; 1996.
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Author(s): C. G. Davision, R. D. Browne, S. M. Gobin
Publication: Tree Planters' Notes - Volume 47, Number 3 (1996)
Volume: 47
Number: 3