Postharvest evaluation of Goldfinger banana.
Seberry, J. A.; Harris, D. R.;
Proceedings of the Australasian postharvest horticulture conference 'Science and technology for the fresh food revolution', Melbourne, Australia, 18-22 September, 1995. Year: 1996 Pages: 205-212 Ref: 7 ref.
1996
บทคัดย่อ
Goldfinger is a promising new dessert cultivar for subtropical banana production areas of Australia which is highly resistant to Mycosphaerella fijiensis and other leaf diseases and also to Fusarium wilt and burrowing nematode [Radopholus similis], and shows greater cold tolerance than cv. Williams. This new cultivar was evaluated in comparison with Williams in postharvest experiments during 1994/95. Trials were carried out in summer, autumn and winter, with fruits harvested from disease evaluation blocks at Wamuran and Pimpama in Queensland, packed as hands in cartons and transported to Gosford for ripening and postharvest studies. In each of the 3 experiments, Williams fruits had longer green-life than Goldfinger, but the latter had adequate green-life for supplying markets within Australia. When fruits were held at 20 deg C after ripening, Goldfinger had significantly longer shelf life than Williams, judged by fruit appearance. However, Goldfinger fruits softened more rapidly after ripening t
han Williams fruits of comparable colour. Goldfinger did not develop optimum eating quality until the peel had reached full yellow colour. The conversion of starch to sugars appeared to occur more slowly in Goldfinger than in Williams in the early stages of ripening. In February 1995, in a large scale experiment involving 3 banana cultivars harvested from plantations in the Tweed district of New South Wales, it was demonstrated that Goldfinger could be ripened successfully with ethylene gas, using similar conditions of temperature and relative humidity to those used for Williams and Lady Finger bananas (16 deg , 95% RH). The results of the ripening experiments were applied in consumer acceptance tests with Goldfinger, subsequently undertaken by the industry in Sydney and Melbourne. The public response to the new cultivar was sufficiently encouraging to convince the Queensland Banana Variety Evaluation Committee that Goldfinger should be released to the Australian banana industry.