New Zealand Journal of Crop and Horticultural Science abstracts
Effect of mechanical and water-based postharvest treatments on storability
of ‘Hayward’ kiwifruit (Actinidia deliciosa)
Christopher J. Clark
Robert B. Jordan
Bioengineering
The Horticulture and Food Research
Institute of New Zealand Ltd
Private Bag 3123, Hamilton
New Zealand
email: cclark@hortresearch.co.nz
Xenia Meier
Michael A. Manning
Bioprotection
The Horticulture and Food Research
Institute of New Zealand Ltd
Mt Albert Research Centre
Private Bag 92 169, Auckland
New Zealand
Abstract A trial (15 orchards; n = 37500 fruit) was
conducted to determine the impact of postharvest wetting and drying procedures
on the subsequent storage characteristics at 0°C of ‘Hayward’ kiwifruit
(Actinidia deliciosa). Treatments were a control (commercial practice
before storage), wetting in water or MgSO4 solution, and passive
(drip-drying) or active (brush rollers and fan) drying before curing. Cumulative
fruit loss in the Control after 20 weeks of storage was 2.2%. This increased
by 71% with dry brushing, with wetting having negligible additional impact.
Dipping fruit in MgSO4 solution had no adverse consequence on
total losses beyond use of water alone. There was no difference in overall
fruit losses between passive and active drying processes, or between treatments
containing wet and dry fruit where equivalent mechanical procedures were
imposed. Physiological pitting (0.4%) was the only individual quality disorder
where losses increased (to 1-1.2%) when fruit were wetted.
Keywords Actinidia deliciosa var. deliciosa;
pitting; postharvest disorders; storage; wet fruit
H03022 Received 28 February 2003; accepted 6 June 2003; published 8 August
2003
New Zealand Journal of Crop and Horticultural Science, 2003, Vol. 31:
247-254
0014-0671/03/3103-0247 $7.00 © The Royal Society of New Zealand
2003
PDF file of entire paper: Print-quality (75K) |
screen-quality (61K)
This year's abstracts |
Journal home page |
All abstracts |
Publishing home page
