Document


Title

The seed biology of Themeda triandra Forsk. in relation to fire
Document Type: Conference Paper
Author(s): J. M. Lock; T. R. Milburn
Publication Year: 1970

Cataloging Information

Keyword(s):
  • Africa
  • conservation
  • cover
  • field experimental fires
  • fire dependent species
  • fire management
  • germination
  • grass fires
  • grasses
  • grasslands
  • ground cover
  • heat
  • heat effects
  • light
  • plant growth
  • plant physiology
  • post fire recovery
  • savannas
  • seed dispersal
  • seed germination
  • seedlings
  • seeds
  • soil temperature
  • temperature
  • Themeda
  • Themeda triandra
  • Uganda
Region(s):
  • International
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 35329
Tall Timbers Record Number: 9627
TTRS Location Status: In-file
TTRS Call Number: Fire File DDW
TTRS Abstract Status: Okay, Fair use, Reproduced by permission

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

Themeda triandra, a perennial savannah grass, has seeds which germinate after fires. The seed is buried by hygroscopic movements of the awn to a mean depth of 1 cm, where it is protected form the heat of fires. Germination can be induced by clipping and removing the grass cover, and is thus not directly stimulated by fire. Field and laboratory experiments suggest that germination is induced by a combination of light and high temperatures, which is produced by cover removal. Awned grasses are widespread in regularly burnt grasslands, and seed burial and post-fire germination, if found to be widespread, could be important in grassland management.

Citation:
Lock, J. M., and T. R. Milburn. 1970. The seed biology of Themeda triandra Forsk. in relation to fire, Proceedings Symposium British Ecological Society, 11th, The scientific management of animal and plant communitites for conservation. [Norwich, Great Britain]. [The Society], p. 337-349,