THE POTENTIAL OF BAMBOO WASTE AS A MEDIUM OF OYSTER MUSHROOM IN PT. BUKIT ASAM TBK-PELABUHAN TARAHAN

Abstract

Woods as a source of sawdust are currently declining due to the logging activity without the reforestation. On the other hand, bamboo waste has the potential to be developed to become a mushroom-growing medium. The purpose of this study was to find out how coarse bamboo waste, fine bamboo waste, and a combination both of them can affect the growth and yield of oyster mushrooms. This study used a randomized complete block design (RCBD) with six replications of a single factor which is medium, consisting of 100% coarse bamboo waste, 100% fine bamboo waste, 100% wood sawdust waste, and combination of coarse bamboo waste and fine bamboo waste with ratio 50%:50%. The acquired data were analyzed with an F test and tested further with LSD test at α 5% when significant. The results showed that coarse bamboo waste did not have significant effect on mycelium growth on the time the pinheads formed; at relative time of body formation; diameter, and thickness of mushroom caps. However, it had a significant effect on the number of caps and the mushroom weight per baglog and plot. The fine bamboo waste did not have effect on mycelium development when the pinheads appeared; at the relative time of body formation; diameter; thickness; or number of mushroom caps. However, it had an effect on mushroom weight per baglog and plot. The mixture of coarse and fine bamboo waste with ratio 50:50 resulted the greatest outcome in terms of number of caps, and the mushroom weight per baglog, and plot.