Breakdown in Jonathan and Delicious apples in relation to weight lost during cool storage

Abstract

The incidence of breakdown in Jonathan and Delicious apples stored in the presence of calcium chloride was studied. Jonathans from two orchards and Delicious from one orchard were stored at 32�F in 1963, and Jonathan and Delicious from one orchard were stored at 30�, 32�, and 36�F in 1964. On four occasions in 1963, and on three in 1964, samples were transferred from cool storage to storage at 68�F and inspected for breakdown seven days later. In each of the thirty orchard-variety-season-storage period classes the decrease in incidence of breakdown with increased weight loss was always very highly significant (P<0.001), and varied from 2.1 to 8.7 degrees for each per cent of weight loss.