GENETIC PARAMETERS ON COMBINATION PROVENANCE-PROGENY TEST OF Araucaria cunninghamii ORIGIN FROM MANOKWARI (PAPUA) IN BONDOWOSO, EAST JAVA

• Main Authors: Dedi Setiadi, M. Anis Fauzi
• Format: Article
• Language: Indonesian
• Published: Balai Penelitian Kehutanan Makassar 2015-09-01
• Series: Jurnal Penelitian Kehutanan Wallacea
• Subjects: A. cunninghamii; growth; Provenance-progeny test
• Online Access: http://jurnal.balithutmakassar.org/index.php/wallacea/article/view/61
• ISSN: 2302-299X; 2407-7860

<p><em>Araucaria</em><em> cunninghamii</em> as long fiber pulp raw material needs to be considered in the future which is currently imported from other countries to supply long-fiber pulp raw material in Indonesia. The improved seed sources need to be prepared early to determine the genetic gain. Combination provenance-progeny test of <em>A.cunninghamii</em> in Bondowoso, East Java is one of the researches that it was built to produce improved seed of <em>A.cunninghamii</em> in the future. The trial is laid out in Randomized Complete Block Design (RCBD) with 28 families, 4 trees per plot and 8 replicate with a spacing of 4 x 3 m. The results show that the average of height and diameter growth at the age of 5 and 10 years were 5.47 m; 8.20 cm and 16.05 m; 20.59 cm, volume/ha of the trees were 8.02 m³/ha and 74.52 m³/ha, and mean annual increment for volume were 1.60 m³/ha/year and 7.45 m³/ha/year. At 5 years old, stem diameter was significant between provenances, while at the age of 10 years significant differences for both traits. At the age of 5 and 10 years of family and individual heritability values were moderate, h²_f= 0.40 - 0.50, h²_i= 0.2 - 0.3; and h²_f = 0.40 - 0.47, h²_i= 0.28 - 0.29, while within family heritability (h²_wf) was 0.41 - 0.48). Genetic correlation at age of 5 and 10 years was quite high (rg=0.62; 0.82). Estimation of genetic gain for height and diameter by within family selection was 0.10% and 0.07% for 5 years and 0.53% and 1.01% for 10 years.</p>