The occurrence ofFusarium andAlternaria on faba bean seed
The studies on the occurrence ofFusarium andAlternaria in faba bean seed have been conducted for three years. The fungal flora in seed lots from healthy plant and from plant inoculated withAscochyta fabae were determined. In addition the occurrence ofFusarium andAlternaria in three parts of seed: testa, cotyledones, and embryo axis were investigated.It was found thatFusarium andAlternaria were present in faba bean seed, but the frequency of occurrence varied depending upon cultivar and experimental year.
Seed microflora of pulses grown in Alberta, Canada
Recherche des microorganismes transmis par les semences de pois de conserve, pois secs, haricots de conserve, haricots secs, feves, lentilles, soja
On the Ascochyta spot disease of broad beans.
Summary Ascochyta spot disease of broad beans, first observed in 1927 in England, is widely distributed throughout the world, but rarely causes appreciable economic damage. The fungus is closely related to Ascochyta pisi , but is distinct, and can be readily differentiated by the larger size of its spores. It is largely specialized in its parasitism to broad bean, and in the small number of inoculation experiments in which peas were successfully inoculated the fungus retained its specific character on this host. It is therefore best regarded as a distinct species, A. fabae Speg. The disease is carried on the seed and the only satisfactory preventive measure is to use clean seed harvested from healthy crops.