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Home → Publications → National Nursery Proceedings → 2006 → Blackout Cloth for Dormancy Induction

Blackout Cloth for Dormancy Induction

Jopson, T. IN: USDA Forest Service, Rocky Mountain Research Station, Proceedings RMRS-P-50, p. 36-37. National Proceedings: Forest and Conservation Nursery Associations - 2006. 2007.

The use of blackout cloth to create long night photoperiods for the induction of dormancy in certain conifer species has been an established practice for a long time. Its use was suggested by Tinus and McDonald (1979) as an effective technique, and the practice has been commonly used in Canadian forest nurseries for a number of years. Cal-Forest Nursery installed its first blackout system in 1998 after a visit to several Canadian nurseries. Over the next several years, the basic protocols were established. Successful use of blackout requires appropriate equipment and knowledge of appropriate species, initiation timing, and duration.


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Author(s): Thomas M. Jopson

Publication: National Nursery Proceedings - 2006

Event: Western Forest and Conservation Nursery Meeting
2006 - Eugene, OR