Lactuca sativa cultivar exhibiting resistance to downy mildew and corky root rot

摘要

The present invention relates to a new crisphead Lactuca sativa cultivar, designated Sharp Shooter, which exhibits resistance to downy mildew pathotypes I, IIA, III, and IV and corky root rot pathotype CA1, a color of 146A according to The R.H.S. Colour Chart published by the Royal Horticultural Society of London, England, and mature heads of which weigh about 10% to about 40% more than comparable varieties of crisphead lettuce.