Keberhasilan Okulasi Jati (Tectona grandis L.f.) Hasil Eksplorasi di Gunung Kidul
Abstract: Teak exploration as
planting material source of superior genotype is necessary for hedge orchard
establishment for forest communities in order to produce the planting material
by themselves. The objective of this study is to identify the success and
growth of teak grafting resulted from exploration in Gunung Kidul region.
The exploration aimed to collect teak ortet (mother tree). The ortets
would be used as materials for hedge orchard, as the cutting source for
community forest plantation. The study was conducted in Gunung Kidul region
(for exploration) and in the Laboratorium on Intensive Silviculture,
Silviculture Department, Faculty of Forestry UGM. In the laboratory, the first
three months was to examine grafting compatibility, and the second three months
to monitor the growth of teak grafting. The experiment in the laboratory was
performed with Completely Randomized Design (CRD), with treatment of 16 clones
and 10 treeplot replication each, making total of 160 clones.
The study resulted in the following: 1) from the exploration, there were
52 clones having good genotypes; 2) from the 52 good-genotype clones, there
were 16 clones having good compatibility; 3) in the period of 3 months, the
best height growth was shown by clone number 6 with 27 cm; the best diameter
growth by clone number 5 with 0.252 cm, and in term of leaf number, the best
was shown by clone number 15 with 9.2 blades. In general clone number 6 showed
the best compatibility and growth, with sprout life percentage of 37.03%;
height growth of 2.7 cm; diameter growth of 0.114 cm and leaf number of 9.2
blades.
Keyword: grafting, teak,
exploration, ortet, Gunung Kidul
Penulis: Sapto Indrioko, Eny
Faridah, Aan Yuli Widhianto
Kode Jurnal: jpkehutanandd100009
