EVALUASI PERTUMBUHAN DAN KARAKTERISTIK TANAMAN JATI YANG DIBERI PERLAKUAN KOLKISIN
Teak is Perum Perhutani�s main product so teak improvement and silviculture activities should be developed to get superior ones. The results of the existing breeding in the forms of clonal seed orchard and hedge orchard have resulted in certified superior teaks. However, efforts to get other super...
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| Main Authors: | , |
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| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2014
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/128229/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=68567 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | Teak is Perum Perhutani�s main product so teak improvement and
silviculture activities should be developed to get superior ones. The results of the
existing breeding in the forms of clonal seed orchard and hedge orchard have
resulted in certified superior teaks. However, efforts to get other superior teak
have to be done continuously to enrich genetic material of superior teaks.
One effort to acquire superior teak is through ploidy manipulation. Plants
with colchicine treatment are expected to be tetraploid, which generally have
greater performance. This research aims to determine the effect of colchicine
application on teak�s characteristics and growth in the field up to 15 month old.
This activity consists of 3 phases: (1) ploidy manipulation in the laboratory, (2)
planting and maintenance of tetraploid teak in the field, (3) growth and
characteristics evaluation of teak tetraploid plants.
The study used two kinds of teak, i.e. families number 97 and 110. For
three consecutive days, 0.2 % colchicine was dropped each morning on to the
bud (first leaf) in vitro. Plants which were proved to be tetraploid were planted
in the field along with diploid plants as a comparison. The experiment was using
a randomized block design with 3 repetitions.
Results showed that the concentration of 0.2 % colchicine could make teak
to be tetraploidy. In population, height growth of tetraploidy plants at 6 - 9
months is better than diploid teak, whereas diameter growth is better in the first
3 - 6 months of age. However, in 15 month observation, the physiological and
morphological characteristics of tetraploidy teak are no better than diploid teaks,
and this implies in growth rate that is no much better. |
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