WOOD RESEARCH Volume 71, Number 3, 2026
Fanny Hidayati, Sugeng Pudjiono, Ratna Adji Hartati, Erlangga Abdillah, Harry Praptoyo, Ananto Triyogo, Gefri Indra Hutabarat, Alfia Dewi Fadwati, Agung Prasetyo, and GANIS LUKMANDARU

Variation of Growth Characteristics and Stress-Wave Velocity of the First Generation Manglietia glauca Families Planted in Indonesia

Growth characteristics, including stem diameter (D), tree height (H), and stem volume (V), and wood property stress-wave velocity (SWV), were measured in 100 families of 7-year-old first-generation Manglietia glauca trees planted in Indonesia. Therefore, this study aimed to evaluate the variation in D, H, V, and SWV among the families and their heritability. An analysis of the correlations, principal components and selection index was also conducted. The presence of significant differences in all measured traits among the families indicate a genetic contribution to traits variation. Low to moderate narrow-sense heritability values were observed across all traits, showing that the genetic enhancement of growth and wood properties in M. glauca is achievable through selective breeding. Moderate to highly significant positive correlations were observed among the growth traits, highlighting their strong interrelationships. D and SWV showed a low significant positive correlation. H and V showed no significant correlation with SWV. Therefore, SWV should be included as selection criterion in M. glauca breeding. PCA and selection index are effectively for identified superior families of growth and strength traits, supporting their selection as candidates for future breeding programs.

WOOD RESEARCH Volume 70, Number 1, 2025
NUR SAFITRI, AUDREY KINANTI, IMAM WAHYUDI, and ANDI DETTI YUNIANTI

COMPARISON OF FIBER QUALITY AND ANATOMICAL STRUCTURES OF ACACIA MANGIUM FROM BREEDING ACTIVITIES

This study aimed to analyze the effect of a tree breeding program on the fiber quality and anatomical structure of 10-year-old Acacia mangium wood. There are three trees in each breeding generation, namely the first generation (F0) and the second generation (F1). The results showed the average fiber dimensions of all populations were as follows: First generation has 966.05 µm length, 19.84 µm diameter, and 3.78 µm cell wall thickness, while Second generation has 1046.23 µm fiber length, 20.23 µm fiber diameter, and 3.56 µm cell wall thickness. The genetic improvement treatment showed significant improvement in the fiber dimension. According to the quality classification grade for pulp and paper raw materials, all populations belong to quality class II. Based on the list of the International Association of Wood Anatomists (IAWA), it can be ascertained that the wood anatomical structures of all populations showed no microscopic differences

WOOD RESEARCH Volume 67, Number 5, 2022
ARIF NIRSATMANTO, SRI SUNARTI, Dwi Kartikaningtyas, Betty Rahma Handayani, Teguh Setyaji, Surip, Sugeng Pudjiono, NOOR KHOMSAH KARTIKAWATI, Teddy Kardiansyah, Krisdianto, Dian Anggraini Indrawan, Rohmah Pari, Mindoro Razoki, Albertus Bambang Herdyantara, Sri Nugroho Marsoem, and Fanny Hidayati

Evaluation of the characteristics of Eucalyptus pellita and acacia hybrid superior clones selected from breeding program in Indonesia as materials for pulp and papermaking

This study evaluates the characteristics of superior clones of Eucalyptus pellita and Acacia hybrid (Acacia mangium × A. auriculiformis) aged six years selected from a breeding program in Indonesia as materials for pulp and papermaking. Height, diameter, and wood density differed significantly between species and among the clones, with respective mean values 21.6 m, 12.57 cm, and 657 kg.m-3 for E. pellita and 19.5 m, 24.83 cm, and 567 kg.m-3 for Acacia hybrid. Most fiber morphologies were significantly different between species. Cellulose and lignin differed significantly only among Acacia hybrid clones. The mean value of screened pulp yield Acacia hybrid (52.50%) was higher than that of E. pellita (50.31%). Kappa number and brightness were significantly different between species and among E. pellita clones. Some correlations of growth and wood properties showed a better relationship to pulp properties. Handsheet properties varied between species, and some clones showed an outstanding one.