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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 24, Number 3 (1973) → Influence of lath plot-separators on frost heaving and growth of seedlings

Influence of lath plot-separators on frost heaving and growth of seedlings

In mid-May 1971, seed from 103 geographic sources of black spruce (Picea mariana (Mill.) BSP.) was sown in seedbed plots located in six randomized blocks at the nursery of the Acadia Forest Experiment Station, near Fredericton, New Brunswick. Each plot consisted of three seed rows sown across the width of the seedbed. All rows were 4 inches apart. The seedbeds were crowned to improve surface drainage and the edges of the beds were protected by wooden 2- x 2-inch mudsills. After sowing, wooden laths (about 1.5 inches wide, 1/4 inch thick, and 48 inches long) were placed between adjacent plots to make identification easier. The ends of the laths were nailed to the mudsills (fig. 1).


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Author(s): H. G. MacGillivray, H. A. Hartley

Publication: Tree Planters' Notes - Volume 24, Number 3 (1973)

Volume: 24

Number: 3