Evaluation location: California, United States
Lettuce (Lactuca sativa L.) breeding lines (RH12-3194, RH12-3195, RH12-3197, RH12-3198, RH12-3199, and RH12-3200) grown in a Spreckels, CA field experiment with the check cultivars Pacific, Salinas, and Tiber.
Lettuce was direct seeded on February 4, 2014 on raised beds 1 m wide by 25 cm high with two parallel seed lines separated by 28 cm. Each breeding line or cultivar was seeded to 6 meter long plots using both seed lines on that section of bed. Plots were thinned 4 weeks after seeding to achieve spacing of 28 cm between plants within a seed line. Each breeding line or cultivar was grown in up to three replicate plots. All trials were grown to maturity using standard cultural practices appropriate for the Salinas Valley of California.
Mention of cultivar names in this document is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture..
Field descriptor file.