Effect of Inoculation of Bacteria, Contact of Calycles with the Pericarp and Humidity on the Incidence of Warty Fruit in Okra (Abelmoschus esculentus Moench)

This study was carried out to investigate the effect of inoculation of bacteria, contact of caly with the pericarp and high humidity on the incidence of warty fruit of Okra (Abelmoschus esculentus Moench). Although certain bacteria were found in the wart region, inoculation of those did not affect the incidence of warty fruit. When caly were in contact with the pericarp, the incidence increased. When the caly were removed, the incidence tended to decrease. When fungicide or pure water was sprayed onto the fruit, the incidence was very high. High humidity treatment caused increases in the warty ones. However, when the caly were removed in advance, the incidence was very low under high humidity conditions. In conclusion, we could consider that the primary cause of the incidence of warty fruit was contact between the caly and epidermis, and that the effect of contact was increased by high humidity.