ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Determining apple packout losses and impact on profitability.

Baugher, T. A.; Hogmire, H. W., Jr.; Lightner, G. W.;

Applied Agricultural Research Year: 1990 Vol: 5 Issue: 4 Pages: 343-349 Ref: 8 ref.

1990

บทคัดย่อ

Packout losses were determined from samples of Delicious apples collected at 9 packinghouses operated by West Virginia growers in 1987-88 and 1988-89. A submersion tank collection technique and a grading scheme chart were utilized, and defects and grades were simultaneously determined. Defects found in 100% of the lots in both years were inferior colour, bruising, and small size. An integrated orchard management cost/benefit analysis, or audit, conducted on each lot of fruit revealed that total losses in returns from defects ranged from $673 to $4247 per hectare, indicating differences in management as well as microclimate. The cost of a defect such as hail damage, scald, small size, or tufted apple budmoth injury generally was higher than bruising or poor colour because the fruits were downgraded to a greater extent. Regression analyses relating orchard data to defect data indicated that a packout audit could be used to provide valuable feedback to field operations.