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Home → Publications → Tree Planters' Notes → Tree Planters' Notes Volume 24, Number 4 (1973) → Duration of cold storage alters time required for seedling bud-break

Duration of cold storage alters time required for seedling bud-break

This article reports that length of cold storage has a definite effect on rate of bud-break initiation in three commercially important tree species. A positive correlation appears to exist between lenghty storage and speedy growth resumption after dormancy. Once plants become "physiologically dormant" (Romberger 1963,) they generally require a cold period before resuming visible growth. Under forest conditions in the Northeast, this requirement is satisfied by natural chilling during the winter months. Frequently, however, we wish to force early seedling growth by bringing plants into the greenhouse. Under these circumstances, we need to know the minimum length of time they must be exposed to low temperatures in order to break physiological dormancy. Apparently this varies tremendously with species (Wareing 1969).


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Author(s): John R. Donnelly

Publication: Tree Planters' Notes - Volume 24, Number 4 (1973)

Volume: 24

Number: 4