The field experiment was carried out in a field of disease history for the bacterial rot at storage; the field was naturally infected with bacterial rot pathogens. The treated and the control onion transplants were distributed randomly in the field plots before planting. In the middle of the growing period (after two months from planting), a second treatment of actinomycete isolate No.HHFA2 was applied in the pots and field by irrigating the soil with its liquid culture.
All the suitable cultural practices were carried out through the growing period. Onion was harvested after four months from planting (when 50% of the onion necks fallen down). Then, onion was leaved in the open air for two weeks before being stored as common.
common.