An Illustrated Guide to the Identification of Some Market Disorders of Head Lettuce: Marketing Research Report No. 950 (Classic Reprint)

Identify market disorders in head lettuce at a glance with clear, illustrated guidance.

This concise reference highlights common conditions like carbon dioxide injury, low-oxygen injury, internal rib necrosis, pink rib, rib discoloration, russet spotting, rusty-brown discoloration, and bacterial soft rot. Each entry describes what symptoms look like, where they tend to appear on the head, and typical scenarios that influence their development, helping you distinguish similar problems quickly.

The book uses plate images and straightforward descriptions to aid professionals in recognizing disorders during shipping, storage, and sale. It focuses on practical signs that market testers and field staff can observe, without promising specific outcomes, making it a useful field aid for lettuce buyers, packers, and inspectors.

• How to spot carbon dioxide injury and its effect on heart leaves and wrapper leaves
• Key signs of low-oxygen injury and the associated off-flavors
• Symptoms of internal rib necrosis and how it differs from rib-related issues
• Visual cues for russet spotting, pink rib, rib discoloration, and rusty-brown discoloration

Ideal for readers of agricultural extension guides, market quality references, and professionals involved in lettuce production, handling, and inspection.