Abstract
This study aimed to investigate morphology and proportion of wood cell due to effect of lateral growth rate and radial position in white jabon [Neolamarckia cadamba (Roxb.) Bosser]. A total of nine trees of 10-year-old were used and wood samples were collected from the trees grown in progeny trial plot in Central Java Province, Indonesia. The parameters observed were cell morphology and proportion, including fiber length, fiber diameter, fiber lumen diameter, fiber wall thickness, vessel diameter, fiber proportion, vessel proportion, axial parenchyma and ray proportion. The data obtained were statistically analyzed using two-way analysis of variance with two factors, namely lateral growth rate and radial position. The results showed that white jabon wood had an average fiber length of 1.35 mm, fiber diameter 22.94 μm, fiber lumen diameter 18.34 μm, fiber wall thickness 2.34 μm, and vessel diameter 134.24 μm. The average value of fiber, vessel, parenchyma, and ray proportions were 57.87%, 20.41%, 1.67%, and 20.05% respectively. Lateral growth rate had a significant effect on fiber diameter, fiber lumen diameter, vessel diameter, and vessel proportion. Radial position has a significant effect on fiber length, fiber diameter, and fiber wall thickness, including vessel diameter and vessel proportion. Meanwhile, the interaction between these two factors had no significant effect on cell morphology and proportion.
SDGs:
SDG 15:Life on Land