RESPONSE OF <em>AQUILARIA</em> <em>MICROCARPA</em> TO TWO SPECIES OF <em>FUSARIUM</em> UNDER TWO DIFFERENT CULTIVATION SYSTEMS

Abstract

Aquilaria microcarpa was inoculated with two types of Fusarium sp. and planted under two different planting systems in Sebulu Modern Village, Sebulu District and Bukit Raya Village, Tenggarong Seberang District, Kutai Regency. The research was designed by 2 × 2 × 12 factorial using randomised blocks consisting of (1) cultivation system, namely, mixed and monoculture and (2) variant of Fusarium spp., namely, Fusarium isolated from East Kalimantan and Fusarium isolated from Bogor. Fusarium isolates from East Kalimantan were F. oxysporum and those from Bogor, F. solani. After one month of inoculation, 100% holes were infected with F. oxysporum and F. solani, indicated by the infection area around the hole, either in monoculture or mixed system. The monoculture system showed better result than the mixed system and F. oxysporum showed the best widespread symptoms of infection (31.43 cm²), infected wood colour (brown = 1.53), wood aroma (1.50 = good smell/aromatic). The widest infection area was observed in the combination of monoculture system and F. oxysporum.