บทคัดย่องานวิจัย

Cultivar and growing region influence efficacy of warming treatments for amelioration of superficial scald development on apples after storage.

Watkins, C. B.; Bramlage, W. J.; Brookfield, P. L.; Reid, S. J.; Weis, S. A.; Alwan, T. F.;

Postharvest Biology and Technology Year: 2000 Vol: 19 Issue: 1 Pages: 33-45 Ref: 19 ref.

2000

บทคัดย่อ

Cultivar and growing region influence efficacy of warming treatments for amelioration of superficial scald development on apples after storage.

Single warmings of Cortland, Delicious, Granny Smith and Pacific Rose apples, grown in the USA or New Zealand between 1992 and 1996, to 20 deg C for 0-9 days after cold storage for 0-27 days were tested as a potential non-chemical method to control superficial scald development. Only in Granny Smith was scald development reduced to commercially acceptable levels by warming, and even for this cultivar the response varied among growing regions, with fruits grown in Auckland or Hawke's Bay (New Zealand) giving very different results. Warming treatments advanced ripening, as indicated by softening of Cortland, and to a lesser extent Delicious, but had only small ripening effects on Granny Smith and Pacific Rose. The extent of any warming effects on fruit ripening was greater with longer storage time before warming and with longer warming periods. Warming Cortland apples twice reduced scald to the level of diphenylamine (DPA) treatment but increased the amount of ripening induced. There was no eviden

ce that warming could delay rather than prevent scald development.