ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Chlorophyll fluorescence of Delicious apples at harvest as a potential predictor of superficial scald development during storage

Jennifer R. DeEll, Robert K. Prange and Dennis P. Murr

Postharvest Biology and Technology Vol: 9 Issue: 1 Pages: 1-6

1996

บทคัดย่อ

Chlorophyll fluorescence (Fv) of Delicious apples at harvest was evaluated as an indicator of superficial scald development during storage. The Fv of `Imperial' and `Sturdeespur' Delicious apples was determined at three weekly harvest intervals, and the apples were later evaluated for scald intensity after 2, 4 and 6 months of storage at 0°C. `Sturdeespur' apples had an overall higher incidence of scald than `Imperial' apples. Fv at harvest was found to correlate positively with scald development in `Sturdeespur' apples from Harvest 1. `Sturdeespur' apples with low Fv (<10) at Harvest 1 were least likely to develop scald, while those with high Fv (>18) were most likely to develop severe scald. However, no such relationship was observed for `Imperial' apples, or for some `Sturdeespur' apples from harvests 2 and 3. The results of this study suggest that Fv at harvest may be a predictor of scald development.