Evaluasi Pertumbuhan Uji Provenans Eucalyptus urophylla S.T. Blake Umur 20 Tahun di Lad Krating, Chachoengsao, Thailand)
Abstract: Growth
characteristics of a wide range of provenance trial of Eucalyptus urophylla
established at Lad Krating Plantation, Chachoengsao Province were assessed at
20 years of age. The trial was established to ascertain the extent of variation
within the species, identify promising sources for the immediate seed supply
and provide information on superior sources for selection. The trial consisted
of 18 provenances representing six islands in Indonesia, viz. Flores, Lomblen,
Pantar, Alor, Wetar, and Timor. Results from the present study indicated that
there were significant differences in survival, tree height, clear bole,
diameter at 10 cm above ground level (D10), and diameter at breast height (Dbh)
among provenances. Meanwhile, the difference in crown diameter among
provenances was insignificant. The present results recommended 6 provenances,
viz. Mt. Lewotobi (Flores), Mt. Wasbilla (Pantar), Mt. Kerbau (Lomblen), Mt. Lewerok
(Flores), Ampui (Alor), and Mt. Lakaan (Timor) as the best performing
provenances for the next selection process and the most promising seed sources
to be used in increasing the plantation productivity at Lad Krating.
Keywords: Eucalyptus
urophylla, provenance trial, growth characteristics
Penulis: Indi Hendraswari,
Suree Bhumibhamon
Kode Jurnal: jpkehutanandd090008
