Bioassay and assessment of disease incidence
Four months after the banana tissue culture plantlets were
transplanted into the field, the bioassay for wilt incidence was
performed up to 10 months post-transplantation when the disease
incidence usually stabilized. Disease incidence was expressed as a
percentage of diseased plants per the total number of plants and
was based on observations of typical wilt symptoms, including
foliage chlorosis, necrosis and drooping of the leaves