Results in Table (3) indicate that all
concentrations tested of chitosan significantly
reduced the of anthracnose diseases incidence. The
percentage of decayed fruits increased by prolonging
the storage period, reaching its maximum after 30
days. Chitosan concentrations of 0.05 and 0.1%
Chitosan C. gloeosporioides.
concentration
(mg/l)
linear growth
(mm)
Reduction (%)
0.2 56.5 b 37.2
0.4 41.3 c 54.1
0.6 21.0 d 76.6
0.8 0.0 e 100.0
Control (0.0) 90.0 a ----
Chitosan C. gloeosporioides.
concentration
(mg/l)
Conidia
Germination (%)
Reduction (%)
0.2 51.3 b 44.5
0.4 31.4 c 66.0
0.6 17.8 d 80.7
0.8 0.0 e 100.0
Control (0.0) 92.5 a ----
of mango fruits. At2.0% chitosan solution showed a
complete protective effect of mango fruits against
anthracnose incidence during 30day of storage, and
after 30days of storage gave 85% reduction of
disease incidence. Meanwhile, at4.0% chitosan
solution showed a highly protective effect after
30days by 95.4% reduction of disease incidence, and
92.1% at the end of storage.
Results in Table (4) indicate that all concentrations
tested of chitosan significantly reduced the
percentage of mango fruits rotted tissue.
On the other hand, Fruits coated with chitosan
solution at0.2 % and 0.4 % gave a strongly reduction
of the percentage of mango fruit rotted tissue by 89.3
% and 95.0% , respectively, followed by fruit treated
with chitosan solution at1.0% by 50.5 % reduction of
fruit rotted tissue . At low concentration 0.5 %
resulting less effect for reducing the percentage of
fruit rotted tissue.