Inheritance of resistance to anthracnose stalk rot of corn (Zea mays), caused by Colletotrichum gramiticala, was studied in progeny derived from a cross between the resistant inbred DW 1035 [(MP305×FRB73 [5] ) S8 ] and the susceptible inbred FRB73. In 1987, 1988, and 1989, the parental lines and the F 1 , F 2 , and both backcross generations were tested. Generation mean analysis indicated significant additive and dominance genetic effects were of primary importance in all 3 yr. Dominance estimates ranged from 8.3 to 33.9%. Estimates of the number of effective factors conditioning resistance ranged from 0,38 to 2.08. Significant dominance genetic effects from generation mean analysis, low estimates of the number of effective factors, and frequency distributions of individual plant reactions indicate genetic dominance controlled by one or a few genes [...]
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Ján Toman (1993) studied this question.