Evaluations of Plant Introductions of Daucus Species for Tolerance to Alternaria dauci and Some Other Horticultural Characteristics

This report presents results obtained from a field evaluation of the U.S. Plant Introduction collection of Daucus spp. at Sanford, Florida, during the spring of 1992. The primary objective was to identify useful sources for resistance or tolerance to Alternaria leaf blight caused by the fungus Alternaria dauci. A secondary objective was to gather other useful data on horticultural characteristics of potential interest to plant breeders and geneticists such as root color and shape, flowering and flower characteristics, and growth habit. Most of the accessions tested in this experiment were new or different than those tested in 1989 (Strandberg et. al, 1989).