Full text of this article is only available in PDF format.

Riitta Höyhtyä (email), Heikki Hänninen

Effect of photon flux density on bud dormancy release in Norway spruce seedlings.

Höyhtyä R., Hänninen H. (1991). Effect of photon flux density on bud dormancy release in Norway spruce seedlings. Silva Fennica vol. 25 no. 3 article id 5452. https://doi.org/10.14214/sf.a15610

Abstract

The effect of photon flux density on bud dormancy release in two-year-old seedlings of Norway spruce (Picea abies (L.) H. Karst.) was examined. The seedlings were first chilled for 0–21 weeks under natural conditions and then forced in a warm greenhouse either in low (15 μEm-2s-1) or in high (300 μEm-2s-1) photon flux density. Occurrence of bud burst was observed in the forcing conditions, and the observations were used for estimating the cumulative frequency distribution of the chilling requirement for growth competence. The estimated distribution had greater variance in the low photon flux density than in the high photon flux density forcing. This finding suggests that unnaturally low photon flux densities during forcing may yield overestimates of the genetic within-population variation in the chilling requirement for growth competence.

The PDF includes an abstract in Finnish.

Keywords
Picea abies; dormancy; seedlings; buds; light intensity; chilling requirement; annual habit; development

Published in 1991

Views 2097

Available at https://doi.org/10.14214/sf.a15610 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Hänninen H., Kellomäki S. et al. (1996) Overwintering and productivity of Scots pine in .. Silva Fennica vol. 30 no. 2–3 article id 5590
Leinonen I., Hänninen H. et al. (1996) Testing of frost hardiness models for Pinus sylv.. Silva Fennica vol. 30 no. 2–3 article id 5583
Hänninen H., Kellomäki S. et al. (1993) Effect of increased winter temperature on the on.. Silva Fennica vol. 27 no. 4 article id 5518
Kellomäki S., Hänninen H. et al. (1992) A simulation model for the succession of the bor.. Silva Fennica vol. 26 no. 1 article id 5468
Höyhtyä R., Hänninen H. (1991) Effect of photon flux density on bud dormancy re.. Silva Fennica vol. 25 no. 3 article id 5452
Valkonen M.-L., Hänninen H. et al. (1990) Frost hardiness of Scots pine seedlings during d.. Silva Fennica vol. 24 no. 4 article id 5433
Kellomäki S., Hänninen H. et al. (1988) Model computations on the impacts of the climati.. Silva Fennica vol. 22 no. 4 article id 5362
Hänninen H., Pelkonen P. (1988) Effects of temperature on dormancy release in No.. Silva Fennica vol. 22 no. 3 article id 5357
Hänninen H., Pelkonen P. (1988) Frost hardiness and over-wintering of forest tre.. Silva Fennica vol. 22 no. 3 article id 5350
Hänninen H., (1987) Effects of temperature on dormancy release in wo.. Silva Fennica vol. 21 no. 3 article id 5319
Kellomäki S., Hänninen H. et al. (1987) A tentative model for describing the effects of .. Silva Fennica vol. 21 no. 1 article id 5302
Hänninen H., (1986) Conceptual remarks about the study of the annual.. Silva Fennica vol. 20 no. 1 article id 5257
Hänninen H., (1990) Modelling bud dormancy release in trees from coo.. Acta Forestalia Fennica vol. 0 no. 213 article id 7660
Hänninen H., Luoranen J. et al. (2009) Late termination of freezer storage increases th.. Silva Fennica vol. 43 no. 5 article id 175
Hänninen H., Kramer K. (2007) A framework for modelling the annual cycle of tr.. Silva Fennica vol. 41 no. 1 article id 313
Partanen J., Häkkinen R. et al. (2015) Significance of the root connection on the dorma.. Silva Fennica vol. 50 no. 1 article id 1443
Leinonen I., Hänninen H. (2002) Adaptation of the timing of bud burst of Norway .. Silva Fennica vol. 36 no. 3 article id 534