Lettuce mosaic virus (LMV), has been one of the most destructive diseases of lettuce ( Lactuca sativa L.) in nearly all production areas of the world. One of the major goals of the USDA Lettuce Breeding Project in Salinas, California, has been to develop mosaic resistant cultivars. We began this program in 1959 with a search for sources of resistance. Three years later, we identified 3 resistant Plant Introductions from Egypt (3).
No takes yet. Share an insight, caveat, or question.
Edward J. Ryder (1979) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: