New Zealand Journal of Botany abstracts
Comparative winter frost resistance of plant species from southern
Africa, Australia, New Zealand, and South America grown in a common
environment (Dunedin, New Zealand)
Peter Bannister
Janice M. Lord
Department of Botany
University of Otago
PO Box 56
Dunedin, New Zealand
Abstract The foliar frost resistance of plant
species from the Southern Hemisphere is generally less than that of
their northern equivalents, but are there differences between species
from different southern land masses? Frost damage was determined
visually and from measures of chlorophyll fluorescence: the two methods
gave similar estimates of frost resistance. A majority of species had
frost resistances that were in accord with frost hardiness ratings
derived from USDA climate zones, but species assigned to warmer climate
zones were often more frost resistant than expected. USDA climate
zones, which are based on continental climates in the Northern
Hemisphere, may need re-evaluation for the oceanic climates in the
Southern Hemisphere.
Keywords frost resistance; climate zones; New
Zealand; South America; South Africa; Australia; trees; shrubs; common
garden; family; genus; chlorophyll fluorescence
B05052; Received 16 December 2005; accepted 27 February 2006; Online publication date 18 April 2006
New Zealand Journal of Botany, 2006, Vol. 44: 109–119
0028–825X/06/4402–0109 © The Royal Society of New Zealand 2006
PDF file of entire paper: Print-quality (471K) | screen-quality (680K)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
