An effect of gravity on bud-burst in balsam fir
- 1 June 1986
- journal article
- Published by Oxford University Press (OUP) in Tree Physiology
- Vol. 1 (1) , 47-52
- https://doi.org/10.1093/treephys/1.1.47
Abstract
Bud-burst on first order lateral branches of Abies bafsamea L. (balsam fir) was delayed when the branches were rotated 180° about their long axis. This was not a consequence of injury caused by the treatment because buds rotated 180° on inverted plants flushed at the same time as the controls, whereas flushing of all other buds was delayed. Buds thus appear to be more vigorous when maintained in the same orientation to gravity in which they are formed and the site of gravitational stimulus perception appears to be the bud itself.Keywords
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