Spacing Effects on Seedlings of Northern Red Oak and Yellow-Poplar

Seedlings of northern red oak (Quercus rubra L.) and yellowpoplar (Liriodendron tulipifera L.) were grown at spacings of 10.8/m2 (1 per square foot), 26.9/ m2 (2.5 per square foot), and 53.8/m2 (5 per square foot) for 2 years. Spacing had no significant effect on first-year growth of either species, but increasing density significantly reduced second-year growth. Compared to the 53.8/m2 spacing, 2-year-old seedlings of northern red oak were 3 times larger at 10.8/m2, and 2-year-old seedlings of yellow-poplar were 4.8 times larger at 10.8/m2. Tree Planters' Notes 40(3): 3-4 ; 1989

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Author(s): T. E. Kolb, Kim C. Steiner

Publication: Tree Planters' Notes - Volumes 40, Number 3 (1989)

Section: General

Volume: 40

Number: 3