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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 25, Number 3 (1974) → Apparent freeze damage to black walnut seedlings related to seed source and fertilizer treatment

Apparent freeze damage to black walnut seedlings related to seed source and fertilizer treatment

Following exposure to 15°F temperature in early November 1971 in a southern Indiana nursery, many walnut seedlings were top-killed. Trees of Kentucky, Tennessee, and Alabama origin suffered about four times as much damage as Michigan trees. Seedlings fertilized with ammonium-type fertilizers were less severely affected than unfertilized seedlings or those treated with sodium nitrate. More than 60 percent of the injured seedlings died during the first growing season after outplanting.


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Author(s): Robert D. Williams, David T. Funk, Robert E. Phares

Publication: Tree Planters' Notes - Volume 25, Number 3 (1974)

Volume: 25

Number: 3