New Zealand Journal of Crop and Horticultural Science abstracts
Variation in harvest and storage quality of fruit
from different positions on kiwifruit vines
N. B. PYKE
Foundation for Arable Research
P. O. Box 80
Lincoln, New Zealand
G. HOPKIRK
The Horticulture and Food Research
Institute of New Zealand
Mt Albert Research Centre
Private Bag 92 169
Auckland, New Zealand
P. A. ALSPACH1
The Horticulture and Food Research
Institute of New Zealand
Riwaka Research Centre
Old Mill Road, R D 3
Motueka, New Zealand
K. M. COOPER
The Horticulture and Food Research
Institute of New Zealand
Hawke's Bay Research Centre
P. O. Box 85
Hastings, New Zealand
Abstract The storage quality of fruit from six positions on
kiwifruit (Actinidia deliciosa) vines was investigated using fruit from
both pergola and T-bar trained vines growing in three districts in one season.
The positions were expected to provide fruit which exhibited the greatest
differences in soluble solids concentrations (SSC) and flesh firmness at
harvest and during storage. Effects of fruit position on SSC were reasonably
consistent between orchards, and between fruit at harvest and after
coolstorage. In general, SSC tended to be higher in fruit from the ends of the
leader than in fruit from nearer the centre of the vine. Fruit from the
proximal ends of canes, near the leader, tended to have higher SSC than fruit
from the distal ends of the canes, particularly for T-bar vines. For fruit near
the leader, fruit from canes contained higher SSC than fruit from spurs,
particularly in pergola orchards. In the two districts where comparisons
between training systems could be made, fruit from T-bar-trained vines tended
to have higher SSC than fruit from pergolas. Relationships between fruit
firmness and fruit position were not so clear. Fruit from canes were, on
average, firmer than fruit from spurs at harvest, but not after 18 weeks of
storage. However, fruit from canes or spurs originating at the ends of the
leaders were on average firmer after storage (but not at harvest) than fruit
from fruitful wood which originated near the centre of the vine. Neither of
these effects were consistent for fruit from all five orchards. A simple
relationship between fruit position and fruit firmness was not observed
consistently across the different orchards, or in fruit at harvest and in
storage.
Keywords kiwifruit; Actinidia deliciosa; fruit
quality; soluble solids; flesh firmness; fruit storage; positional effects
New Zealand Journal of Crop and Horticultural Science, 1996, Vol. 24:
39-46
0114-0671/96/2401-0039 $2.50/0 (c) The Royal Society of New Zealand
1996
PDF file of entire paper: medium quality (581K); (scanned from paper original: notes about this process)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
