| dc.description.abstract | Anthracnose disease, caused by Colletotrichum spp., is the primary cause of postharvest
losses in Musa spp. While various physical, chemical and biological methods have been
developed to control this disease, their implementation in crop protection systems faces
significant challenges. Nanotechnology holds great promise for improving the longevity
and effectiveness of agricultural products, thereby ensuring economic and environmental
sustainability. This study was aimed to investigate the inhibitory effect of colloidal biochar
(CBC)/ nanobiochar (NBC) derived from corn cob (CC) and Gliricidia sepium wood (GW)
against Colletotrichum gloeosporioides species complex. CC and GW - CBC/NBC properties
were thoroughly characterized using UV-Vis, Fluorescence, FTIR Spectroscopy and SEM
analyses. Concentrations of CC and GW - CBC/NBC ranging from 0.4 to 20 g/L were
tested in the study. Among the tested concentrations, CC - CBC/NBC at 1, 1.2, 1.6, 2, 4
and 8 g/L, as well as GW CBC/NBC at 0.4, 0.6, 0.8, 1, 1.2, 1.6, 2, 4, 8, 12 and 20 g/L,
exhibited substantial reductions in mycelial densities. A notable reduction in the fungal
growth rate was observed when using Zeolite, CBC/NBC at various weight percentages
(10 to 50 wt/wt%). This suggested that the incorporation of CBC/NBC into the zeolite
matrix contributed to the antifungal activity. However, high concentrations of CC -
CBC/NBC (12 and 20 g/L) revealed higher mycelial densities, indicating a potential loss
of effectiveness or even promotion of fungal growth. This study provides valuable insights
into the potential antifungal activity of CC and GW - CBC/NBC against the Colletotrichum
gloeosporioides species complex. | en_US |
