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Mahogany ( Swietenia macrophylla ) is a tree species widely planted not only for timber production but also as a shade tree in urban areas both on the side of the highway (green belt) and other green open areas. The objective of this study was to analyze the genetic variation of growth and wood quality of a mahogany progeny test at the Parung Panjang, Bogor, which will be converted into a seedling seed orchard for high quality seed production. The progeny test was established using a randomized complete block design involving 96 families originating from seven populations (land races) in Java Island, i.e., Cianjur, Sumedang, Tasikmalaya, Magelang, Gundih, Madiun, and Jember. The results showed that the family had a significant effect on all the growth and wood quality parameters. Individual and family heritability for all growth and wood quality traits were categorized into the high, i.e., 0.33 - 0.96 and 0.35 - 0.56, respectively. The selection simulation showed that the selection percentage of 44.68% (45 best families) gave the optimum genetic gain based on growth and wood quality traits.

Mahogany (Swietenia macrophylla King.) as urban tree: tree growth and wood quality variation in a progeny test