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Blackout cloth for dormancy inductionAuthor(s): Tom Jopson
Source: In: Riley, L.E.; Dumroese, R.K.; Landis, T.D. National Proceedings: Forest and Conservation Nursery Associations - 2006. Proceedings RMRS-P-50. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 36-37
Publication Series: Proceedings (P)
Station: Rocky Mountain Research Station
PDF: Download Publication (200 B)
DescriptionThe 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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CitationJopson, Tom. 2007. Blackout cloth for dormancy induction. In: Riley, L.E.; Dumroese, R.K.; Landis, T.D. National Proceedings: Forest and Conservation Nursery Associations - 2006. Proceedings RMRS-P-50. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 36-37
Keywordscontainer seedlings, photoperiod, Douglas-fir, frost hardiness
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