THE POTENTIAL OF EXOPHYTIC MICROBIALS IN CONTROL OF BLACK ROT DISEASE OF MANGOES (Aspergillus niger)
Abstract
Postharvest black rot disease of mangoes is the most important disease in Bali, especially fruit that has been used for religious ceremonies cannot last long if stored, therefore there is a desire to research efforts to prevent fruit rot with antaginist microbes. Postharvest fruit rot disease in mangoes is Aspergillus niger. In our study, we looked for the exophytic fungi and tested their inhibition of pathogen with exophytic microbes both in vitro and in vivo. The results showed that exophytic microbes found in healthy mangoes include: Rhizopus sp. the number of colonies was 24 x 102 cfu, while Nucordia sp., A. flavus, and A. niger with 18 x 102cfu colonies, and Streptomyces sp. with a colony of 12 x 102cfu. The highest microbial inhibition test results of exophyte against A. niger were obtained from Rhizopus sp. 1 and Rhizopus sp. 4 at 3 and 7 after inoculation. The results of the in vivo antagonistic inhibition test against pathogens (A. niger) were the highest C treatment (Rhizopus sp. 2) and very significantly different from K + P treatment (control with pathogens).
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