บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

'Eureka' lemon chilling injury.

Underhill, S. J. R.; McLauchlan, R. L.; Eaks, I. L.;

HortScience Year: 1995 Vol: 30 Issue: 2 Pages: 309-312 Ref: 18 ref.

1995

บทคัดย่อ

'Eureka' lemon chilling injury.

 

In accordance with the currently approved Australian citrus disinfestation protocol for export to Japan, degreened lemons (cv. Eureka) were cold-stored for 2 weeks at 1 deg C. Following cold treatment, fruits were stored at 5 deg for 3 weeks, then transferred to 20 deg for an additional week to simulate transportation and handling. Fruits harvested early in the season were more susceptible to chilling injury than fruit harvested later, with 62% having lesions >1 cm2 after 2 weeks at 1 deg . Most of the chilling injury occurred after subsequent storage (at 5 deg ) rather than immediately after the 1 deg treatment. Injury was different from surface pitting or oleocellosis, manifesting as large uniform surface lesions 2-3 cm in diameter that rapidly discoloured during storage at 20 deg . Although the oil glands were flattened, the collenchyma layer immediately above the oil gland remained intact. Cellular discoloration was localized around the oil gland, possibly indicating a lateral release of oil

 gland contents. Non-degreened late-season fruits developed substantially lower levels of chilling injury.