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Abstract
Fruit of mango (Mangifera indica L.) were individually sealed in heat-shrinkable plastic films, stored for 2 weeks at 12°C, and then ripened at 21°. Weight loss of film-sealed fruit was significantly less than that of nonsealed fruit. There were no significant differences in firmness, color development of the skin, decay development, or time to ripen to the soft-ripe stage between film-sealed and nonsealed fruit.
Abstract
Seven irradiation tests (with exposures of 0, 7.5, 15, 30, 60 and 90 krad) were conducted on 26 lots of grapefruit throughout the 1981–82 and early 1982–83 citrus seasons. Fruit treated with 60 and 90 krad showed rind breakdown and scald after storage for 28 days at optimum temperatures. Scald was the dominant injury in early-season fruit in tests conducted during Oct. and Dec. 1981 and Sept, and Oct. 1982. Rind breakdown, especially pitting, was the dominant injury in all other tests with midseason and late-season fruit. At the 7.5-, and 15-, and 30-krad exposures, injury was minimal, and fruit exposed to these dosages were acceptable. Although some 60- and 90-krad exposures resulted in excessive injury, 2 tests at 60 and 90 krad were acceptable with early fruit. In some instances, injured areas developed decay after storage and marketing conditions at 21°C.