บทคัดย่องานวิจัย

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Postharvest treatments which reduce chilling injury.

Wild, B. L.;

Australian Citrus News Year: 1990 Vol: 5 Issue: 1 Pages: 10-12 Ref: 2 ref.

1990

บทคัดย่อ

Postharvest treatments which reduce chilling injury.

Rind damage in citrus fruits due to chilling injury during prolonged cold storage may sometimes resemble anthracnose, caused by Colletotrichum gloeosporioides [Glomerella cingulata]. Trials were carried out to determine whether treatments which reduce anthracnose development (hot fungicide dips) would reduce susceptibility to chilling injury in oranges (cultivars Valencia and Washington Navel) and grapefruits (cv. Marsh) stored at 1 deg C. In all cases, a 2-minute dip in a hot solution (53 deg with Valencia and 50 deg with Washington Navel and Marsh) of 1000 p.p.m. thiabendazole before cold storage resulted in a marked reduction in chilling injury, compared with untreated controls. Dipping in a hot solution of benomyl (500 p.p.m.) or in hot water was also beneficial, whereas cold solutions had little or no effect. Possible reasons for these responses are discussed. Further trials are proposed to investigate the theory that, in association with many other factors governing chilling injury incidence, latent fungal infections could be weakening cell walls and predisposing fruit to chilling injury damage when placed under chilling stress.