Hofman, P.J. and Marques, J.R. and Taylor, L.M. and Stubbings , B.A. and Ledger, S.N. and Jordan, R.A. (2010) Skin damage to two new mango cultivars during irradiation and cold storage. In: ISHS Acta Horticulturae 877: VI International Postharvest Symposium, 11th November 2010, Antalya, Turkey.
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Mangoes can express several skin disorders following important postharvest treatments. Responses are often cultivar specific. This paper reports the responses of two new Australian mango cultivars to some of these treatments. 'Honey Gold' mango develops "under skin browning" early during cold storage. This is thought to be partly caused by a discolouration of the latex vessels which then spreads to the surrounding cells. The symptoms appear to be worse in fruit from hotter production areas and that have been cooled to temperatures below 18C soon after harvest. Current commercial recommendations are to cool fruit to 18C, which limits postharvest handling options. Recent trials have confirmed that delayed or slowed cooling after harvest can reduce under skin browning. The defect may also be associated with physical injury to the skin during harvesting and packing. Irradiation is potentially an important disinfestation treatment for fruit fly in Australian mangoes. The 'B74' mango cultivar develops significant skin damage following irradiation, mainly due to discolouration of the cells surrounding the lenticels. Recent results confirmed that fruit harvested directly from the tree into trays without exposure to water or postharvest chemicals are not damaged by irradiation, while commercially harvested and packed fruit are damaged. Several major harvest and postharvest steps appear to increase lenticel sensitivity to irradiation. Further work is required to develop commercially acceptable protocols to facilitate 'Honey Gold' and 'B74' mango distribution and marketing.
|Item Type:||Conference or Workshop Item (Paper)|
|Additional Information:||© International Society for Horticultural Science (ISHS).|
|Keywords:||Cold storage; crop damage; cultivars; irradiation; mangoes; storage disorders; Mangifera indica L.; lenticel damage; under skin browning; physiological disorders.|
|Subjects:||Agriculture > Plant pests and diseases > Pest control and treatment of diseases. Plant protection|
Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Agriculture > Plant culture > Harvesting, curing, storage
Plant culture > Harvesting, curing, storage
Agriculture > Plant culture > Fruit and fruit culture > Culture of individual fruits or types of fruit > Stonefruit
Plant culture > Fruit and fruit culture > Culture of individual fruits or types of fruit > Stonefruit
|Deposited On:||05 Apr 2011 06:56|
|Last Modified:||19 Apr 2011 03:42|
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