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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 23, Number 3 (1972) → Plastic Mesh Tubes Constrict Black Walnut Root Development After Two Years

Plastic Mesh Tubes Constrict Black Walnut Root Development After Two Years

In the spring of 1969, I planted some black walnut seed in 2-inch by 10-inch plastic mesh tubes that contained a medium of one-part soil and threeparts vermiculite. The seed were from a local source and were pit stratified over winter. Twenty-seven tubelings were planted in a test plot on July 8, 1969, at the Southern Michigan State Nursery. As of July 8, 1971, 25 seedlings, or 95 percent, survived. The height growth of the seedlings averaged 2 to 2 1/2 feet, and stem diameter 16/32 to 20/32. A 2 1/2-foot, 20/32 diameter seedling was lifted July 8, 1971, to check the root development and breakdown of the plastic tube figures 1 and 2).


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Author(s): Gilbert R. Ellis

Publication: Tree Planters' Notes - Volume 23, Number 3 (1972)

Volume: 23

Number: 3