Ethylene Production and Fruit-softening Rates in Several Apple Fruit Ripening Variants

Autor: Joseph C. Goffreda, Christopher D. Gussman, Thomas J. Gianfagna
Rok vydání: 1993
Předmět:
Zdroj: HortScience. 28:135-137
ISSN: 2327-9834
0018-5345
DOI: 10.21273/hortsci.28.2.135
Popis: Ethylene production and fruit softening during postharvest storage of several apple (Malus domestica Borkh.) ripening variants were compared with two standard cultivars. PA14-238 and D101-110 produced only low levels of ethylene (–1·hour–1) at harvest and throughout most of 86 days of storage at 4C, whereas `Red Chief Delicious' and `Golden Delicious' fruit produced >100 μl ethylene/kg per hour during the same time period. PA14-238 and D101-110 flesh disks converted aminocyclopropane-1-carboxylic acid (ACC) but not methionine (MET) to ethylene. `Red Chief Delicious' readily converted both MET and ACC to ethylene at the end of cold storage. PA14-238 fruit were the firmest and did not soften during postharvest storage; however, D101-110 softened appreciably. NJ55 did not produce ethylene at harvest, but produced a significant amount of ethylene (90 μl·kg–1·hour–1) during storage. Despite its high capacity to produce ethylene, NJ55 remained nearly as firm as PA14-238 at the end of cold storage.
Databáze: OpenAIRE