New Zealand Journal of Crop and Horticultural Science abstracts
Silver thiosulphate reduces ethylene-induced flower shattering
in Thalictrum delavayi
L. N. HANSEN
K. A. FUNNELL
B. R. MACKAY
Department of Plant Science
Massey University
Private Bag 11 222
Palmerston North, New Zealand
Abstract Prevention of ethylene-induced flower shattering in
stems of Thalictrum delavayi Franch. `Hewitts' Double', a new cut
flower crop, was investigated. Three days after exposure to 10 ul/litre
ethylene, 41% of flowers had shattered on stems pulsed in distilled water,
resulting in a vase life of 4 days. In the presence of ethylene, stems pulsed
with silver thiosulphate (STS) at concentrations of Ag+ >= 0.2
mM exhibited 36% less flower shattering than control stems, resulting in
a vase life of 11 days. The proportion of flowers exhibiting Ag+
phytotoxicity increased with concentration, but at 0.2 mM Ag+
the incidence was not different from stems pulsed in distilled water. Pulsing
cut stems of T. delavayi `Hewitts' Double' with STS solutions containing
0.2 mM Ag+ should reduce ethylene induced flower shattering
and extend vase life.
Keywords cut flower; phytotoxicity; vase life; postharvest
quality
New Zealand Journal of Crop and Horticultural Science, 1996, Vol. 24:
203-205
0114-0671/96/2402-0203 $2.50/0 (c) The Royal Society of New Zealand
1996
PDF file of entire paper: medium quality (170K); (scanned from paper original: notes about this process)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
