New Zealand Journal of Crop and Horticultural Science abstracts
Heat production and respiration by broccoli florets
during senescence at 20deg.C
DONALD E. IRVING
VICTORIA M. BAIRD
New Zealand Institute for Crop & Food
Research Limited
Private Bag 4005
Levin, New Zealand
Abstract Broccoli (Brassica oleracea L. var.
italica `Shogun') branchlets were treated with water or 50 ppm
6-benzylaminopurine (BAP) and stored for up to 5 days in the dark at 20deg.C.
Florets were removed from the branchlets and subjected to measurements of
metabolic activity (heat production or oxygen uptake) and colour change.
Water-treated florets turned yellow much sooner than did BAP-treated florets.
Heat production and respiration decreased after both treatments, and then
increased dramatically between 24 and 96 h in water-treated florets, but
increased only slightly in BAP-treated florets. We discuss possible causes for
the higher metabolic activity in water-treated florets.
Keywords Brassica oleracea; broccoli; heat production;
respiration; 6-benzylaminopurine
New Zealand Journal of Crop and Horticultural Science, 1996, Vol. 24:
199-202
0114-0671/96/2402-0199 $2.50/0 (c) The Royal Society of New Zealand
1996
PDF file of entire paper: medium quality (317K); (scanned from paper original: notes about this process)
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