บทคัดย่องานวิจัย

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The effect of heat treatments for insect control on the quality of Redgold and Fantasia nectarines.

Lay-Yee, M. and Rose, K. J.

Orchardist of New Zealand Year: 1993 Vol: 66 Issue: 4 Pages: 20 Ref: 3 ref.

1993

บทคัดย่อ

The effect of heat treatments for insect control on the quality of Redgold and Fantasia nectarines.

Redgold and Fantasia nectarines harvested in 1992 at export maturity from Central Otago, were forced-air heated to surface temperatures ranging from 38 deg to 46 deg C for 12 to 36 h depending on the temperature. For comparative purposes, a mathematical model was used to express all heat treatments as hour-equivalents at 42 deg . Following heat treatment, fruits were stored at 0 deg for 3 weeks, held at 20 deg for 5 days and then assessed for quality. The results suggest that both Redgold and Fantasia fruits can tolerate up to 10 hour-equivalents at 42 deg with little or no damage. This is within the treatment range which will control thrips on nectarines. Treatment for a greater number of hour-equivalents at 42 deg resulted in an increase in internal browning, scald and mealiness in stored fruits.