Excerpt from Spaced Load Patterns for Improved Temperature Control in Export Shipments of Lettuce At destination, half the lettuce from each test package was evaluated by usda personnel for quality on arrival. The remaining half was examined after a 3 to 5-day holding period at 50° F. Load shifting and carton crushing were also observed. During the quality evaluations, heads considered unsalable were trimmed of outer leaves (retail trim ming) to try to make them salable. All heads in test packages were subsequently torn apart so that all defective tissue could be trimmed (consumer trimming). The percentage of trim losses were determined by weight. Defects found in the con sumer trimming included the following: Decay, tipburn, wilted leaves, russet spotting, rib dis coloration, pink rib, brown stain, and tissue dis colored for any other reason, such as the pink or dark discoloration of crushed and bruised areas. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.