Lockwood is an iceberg variety for main season Salinas Valley plantings. It shows a consistently large head size perfect for bulk programs and has shown strong field tolerance to both Tipburn and Corky Root.

  • Consistently large head size
  • Ideal for bulk programs
  • Has shown strong field tolerance to Tipburn and Corky Root
  • Patent# 10,212,907

Planting Slot: Coast Main Season / King City, Salinas Valley Main Season

Disease Key

Bl Downy mildew Bremia lactucae
LMV Lettuce mosaic Lettuce mosaic potyvirus
TpB Tipburn Physiological disorder

Resistance Terminology

HR = High resistance: plant varieties that highly restrict the growth and development of the specified pest or pathogen under normal pest or pathogen pressure when compared to susceptible varieties. These plant varieties may, however, exhibit some symptoms or damage under heavy pathogen or pest pressure.

IR = Intermediate resistance: plant varieties that restrict the growth and development of the specified pest or pathogen, but may exhibit a greater range of symptoms or damage compared to “highly resistant” varieties. Intermediately resistant plant varieties will still show less severe symptoms or damage than susceptible plant varieties when grown under similar environmental conditions and/or pathogen or pest pressure.

T = Tolerance: The ability of a plant variety to endure abiotic stress without serious consequences for growth, appearance and yield.