Register      Login
Australian Journal of Botany Australian Journal of Botany Society
Southern hemisphere botanical ecosystems
RESEARCH ARTICLE

Diurnal rhythms in stem elongation in Eucalyptus obliqua in relation to temperature and seedling water status

TJ Blake

Australian Journal of Botany 25(4) 455 - 459
Published: 1977

Abstract

Diurnal patterns of stem elongation varied with ambient temperature. Stem elongation was more rapid during the day at lower (20-24°C) day/night temperatures. However, the proportion of night growth increased with increasing temperatures from 30% of the daily total at 20° to 100% at 30°. A decline in both the number and duration of growth flushes appeared to explain the low level of shoot elongation at higher (28° and 30°) day/night temperatures. Under the given experimental conditions, diurnal rhythms in stem elongation reflected ambient temperature rather than seedling water potential.

https://doi.org/10.1071/BT9770455

© CSIRO 1977

Committee on Publication Ethics


Rent Article (via Deepdyve) Export Citation Cited By (3) Get Permission

View Dimensions