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Home → Publications → National Nursery Proceedings → 1978 → Problems with seedling dormancy and freezing

Problems with seedling dormancy and freezing

Muriate of Potash and Seedling Dormancy - application of muriate of potash (KCl) containing the equivalent of 100 and 200 pounds per acre of K^O on September 15 reduced survival of seedlings lifted on November 1, November 15, and December 1 and placed in cold storage for two weeks before planting. Freezing in Storage - storage of dormant seedlings at 20 degrees Farenheit for one month caused complete mortality in 1972 and 95 percent mortality in 1973. However, in 1978 dormant seedlings that stayed frozen in unheated buildings for approximately two months survived well . 1976-77 Freeze Damage in the Seedbeds - seedlings with tops severely damaged when the soil stayed frozen for about seven weeks survived only about half as well as seedlings that had no top damage.


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Author(s): T. A. Dierauf

Event: Southern Nursery Conference: Eastern Session
1978 - Colonial Williamsburg, VA