New Zealand Journal of Crop and Horticultural Science abstracts
H00032Received 21 August 2000; accepted 20 October 2000
Effect of time of cane initiation on subsequent fruitfulness in kiwifruit
ERIC F. WALTON
The Horticulture and Food Research
Institute of New Zealand Ltd
Ruakura Research Centre
Private Bag 3123
Hamilton, New Zealand
email: ewalton@hort.cri.nz
ANNETTE C. RICHARDSON
The Horticulture and Food Research
Institute of New Zealand Ltd
Kerikeri Research Centre
P. O. Box 23
Kerikeri, New Zealand
JOHN E. WALLER
BARBARA W. DOW
The Agricultural and Pastoral Research
Institute of New Zealand Ltd
Ruakura Research Centre
Private Bag 3123
Hamilton, New Zealand
Abstract The effects of time of cane initiation and the
presence of fruit during cane development on production the following season
was studied in kiwifruit (
Actinidia deliciosa (A. Chev.) C. F. Liang et
A. R. Ferguson `Hayward'). Canes initiated early in the season (before 1
December) were compared with those initiated late in the season (after 1
December). Early initiated canes (separated into those that carried/did not
carry fruit during development), and late initiated canes were compared to
separate the effects of time of initiation and the presence of fruit. There was
no effect of time of cane initiation on budbreak or the proportion of shoots
that flowered in the following season. Shoots that developed on early initiated
canes were larger and more fruitful than those that developed on late initiated
canes. Though late initiated canes produced a greater number of shoots than
early initiated canes, the productivity of these shoots was lower, and so cane
productivity (per unit length) was similar. Early initiated canes that carried
fruit during their development were shorter and produced less fruit the
following season than those canes that did not carry fruit during their
development, but productivity per unit cane length was similar. Consequently
kiwifruit growers should retain early initiated canes during winter pruning and
optimise the number of buds laid down per square metre, ignoring their fruiting
history.
Keywords Actinidia deliciosa; kiwifruit; cane
development; cane performance; productivity
New Zealand Journal of Crop and Horticultural Science, 2000, Vol. 28:
277-281
0014-0671/00/2804-0277 $7.00 (c) The Royal Society of New Zealand 2000
PDF file of entire paper: medium quality (385K); (scanned from paper original: notes about this process)
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