New Zealand Journal of Crop and Horticultural Science abstracts
Effects of storage temperature and duration on the dormancy
of Sandersonia aurantiaca tubers
G. E. CLARK
New Zealand Institute for Crop & Food
Research Limited
Pukekohe Research Centre
Pukekohe, New Zealand
Abstract The effects of three storage temperatures (1, 4, and
9.5deg.C) and six storage durations (0, 30, 60, 90, 120, and 150 days) on tuber
sprouting and stem quality of
Sandersonia aurantiaca were investigated.
Tubers did not sprout at lifting when given inductive conditions, but high
percentages sprouted (91.7%) after only 30 days of chilling. Percent sprouting
remained high (93.8%) after 90 days of storage, but decreased to 86.5% with 150
days of storage. Sprouting percentages were high for all storage durations at
4deg.C. Sprouting was significantly less after storage at 9.5deg.C than at 1
and 4deg.C at all storage durations. Time to initiation of sprouting and the
sprouting period decreased with storage duration up to 90-120 days and were
lowest at 4deg.C. Stem length and flower numbers per stem were significantly
higher at storage durations of 90-120 days. Following 90 days of storage, stem
length was greater for storage at 9.5deg.C than at 1 or 4deg.C. Storage at
4deg.C for 90-120 days is required to ensure rapid and even sprouting of
sandersonia.
Keywords Sandersonia aurantiaca; tuber; dormancy;
storage temperature; storage duration; tuber sprouting; sprouting period; stem
quality
New Zealand Journal of Crop and Horticultural Science, 1995, Vol. 23:
455-460
0114-0671/95/2304-0455 $2.50/0 (c) The Royal Society of New Zealand
1995
PDF file of entire paper: medium quality (411K); (scanned from paper original: notes about this process)
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