New Zealand Journal of Crop and Horticultural Science abstracts
Chilling requirement of commercial Echinacea seed
G. A. PARMENTER
New Zealand Institute for Crop & Food
Research Limited
Invermay Agricultural Centre
Private Bag 50034
Mosgiel, New Zealand
L. C. BURTON
New Zealand Institute for Crop & Food
Research Limited
Redbank Research Station
P. O. Box 42
Clyde, New Zealand
R. P. LITTLEJOHN
New Zealand Pastoral Agriculture
Research Institute Limited
Invermay Agricultural Centre
Private Bag 50 034
Mosgiel, New Zealand
Abstract This study aimed to determine the effect of the
moist chilling of seed on germination of
Echinacea angustifolia DC. and
Echinacea purpurea (L.) Moench, and the effect of seed coat trimming on
the germination of
E. angustifolia. Seed of
E. angustifolia
stratified for more than 2 weeks achieved maximum germination rates of 65-80%.
Maximum germination rates of
E. purpurea (84%) were unaffected by
periods of stratification. The time to maximum germination declined as the
length of the stratification period increased. Trimming the seed coat of
E.
angustifolia had no significant effect on the germination rate of
unstratified seed, but halved the germination rate of seed stratified for more
than 2 weeks.
Keywords Echinacea angustifolia; purple coneflower;
Echinacea purpurea; germination
New Zealand Journal of Crop and Horticultural Science, 1996, Vol. 24:
109-114
0114-0671/96/2401-0109 $2.50/0 (c) The Royal Society of New Zealand
1996
Short communication
PDF file of entire paper: medium quality (429K); (scanned from paper original: notes about this process)
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