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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management
Liliana Baskorowati
Research and Development Centre of Forest Biotechnology and Tree Improvement Jl. Palagan Tentara Pelajar km 15, Purwobinangun, Pakem, Sleman, Yogyakarta, Indonesia 55285
Agriculture, Biological Sciences & Forestry

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Genetic Variation of Growth and Disease Resistance Traits in Open-Pollinated Provenance-Progeny Trials of Falcataria moluccana Growing on Two Rust-Affected Sites at Age-18 months Liliana Baskorowati; David Bush; Dedi Setiadi; Mudji Susanto
Jurnal Manajemen Hutan Tropika Vol. 23 No. 1 (2017)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Two Falcataria moluccana (sengon) progeny trials, incorporating 100 different families from 12 provenances growing on two highly gall rust (Uromycladium falcatarium) prone sites were used to estimate genetic parameters and potentially identify rust-resistant material. The analysis was performed to assess provenance- and family-level survival, rust incidence, and growth at the two progeny trials. Height, diameter, survival, and rust incidence was measured at two progeny trials at 18 months-of-age located at Jember and Lumajang, East Java. Rust incidence at the two trial sites was severe, with only 39% overall survival (35% and 43% at Jember and Lumajang, respectively). The analysis revealed significant genetic variation at the provenance level for survival, rust incidence, and growth. No statistically meaningful narrow-sense heritability of these traits was indicated, though this is probably reflective of the inadequate within-family replication and effects associated with uneven stocking resulting from rust-induced mortality. The significant genotype-by-environment (provenance-by-site) interaction was also indicated, though the performance of some of the best- and worst-performing provenances was relatively stable, allowing recommendations of suitable provenances for further testing on rust-prone sites.
Co-Authors David Bush Dedi Setiadi Mudji Susanto