Botany Department, College of Agriculturee Alexandria University, Alexandria, U.A.R.
*Present address: Radiobiology Department, U.A.R. Atomic Energy Commission, Inchas, Egypt.
The present investigations were carried out to study the mode of inheritance of the resistance to stalk-rot disease caused by Fusarium moniliforme in maize. The highly resistant inbred line 61C was crossed to the highly susceptible inbred 75/57 in order to obtain the F1, F2 and the two backcrosses B1 to P1 and B1 to P2. These generations as well as the parental lines were grown under similar conditions and artificially inoculated with the pathogen by the toothpick method. It appeared from the partitioning method of genetic analysis that two major gene pairs differentiate the two parents with respect to resistance. Resistance to stalk-rot disease showed complete phenotypic and genie dominance over susceptibility. The heritability estimate was 0.73 indicating high heri-tability of the resistance to stalk-rot disease in corn
