DESSERT SEED CO. EL CENTRO, CALIF. 

LETTUCE, Continued 

Lettuce, Progress (U.S.D.A. 2428) Days to 
Maturity 
from Seed 
Progress (Imperial type) (w.s.). Developed and released jointly by Dr. 
Ross Thompson at Beltsville and the New Jersey Agricultural Ex- 
perimental Station. Originally numbered 2428 it is now (1948) 
being offered to the trade under the name of Progress. This is a 
quite new variety and is officially described as follows: 
Progress is an early, dark green, thick-leaved, heavily savoyed 
crisp head lettuce. A product of selection from a cross of Imperial 
44 with an unnamed hybrid seedling. As compared with No. 44, 
Progress is darker green, thicker leaved, more savoyed, more 
resistant to tip-burn, and a few days later. It is medium in bolt- 
ing rate and a good producer of seed. For the past four seasons 
Progress has been under trial in several locations in the Eastern 
States and appears to be well adapted as an early-maturing tip- 
burn resistant lettuce. It has proven especially adapted in New 
Jersey. 80-82 
Cornell 456. (Imperial type, see Imperial Lettuce No. 456.) 
Lettuce, Great Lakes 
No. 659, Showing 
Complete Head Protection 

