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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 23, Number 3 (1972) → Late lifting and freezing in plastic bags improve white spruce survival after storage

Late lifting and freezing in plastic bags improve white spruce survival after storage

Overwinter storage of conifer seedlings is useful f or various reasons, but two compelling ones at the Alberta Provincial Tree Nursery (Edmonton, Alberta) are to reduce the spring workload and improve inventory accuracy for planning o f planting schedules. This article reports studies o f several packaging methods and storage at sub-freezing temperature for white spruce. A 1966 trial showed that survival of conifer seedlings after storage at 340 to 360F. was improved by delaying lifting until Oct. 24 when compared with lifting (1) up to a month earlier. A recent publication describes successful long term storage of red pine frozen in plastic bags (6).


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Author(s): Drake Hocking, B. Ward

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

Volume: 23

Number: 3