PERLAKUAN BENIH, PENCANGKOKAN DAN STEK PUCUK Eusideroxylon zwageri T.et.B. (Seed Treatment, Air Layering and Stem Cutting of Eusideroxylon zwageri T.et.B.)
<p>Dlin or kayu besi (Eusideroxylon zwageri T.etB) is an important timber species in East Kalimantan.<br /> However, there are problems in the regeneration of this species. Mechanical method for seed scarification<br /> by cutting at the seed end where radicle emerges provided the...
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| Format: | Article NonPeerReviewed |
| Published: |
[Yogyakarta] : Fak. Kehutanan UGM
2000
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| Online Access: | https://repository.ugm.ac.id/94742/ http://repository.ugm.ac.id/digitasi/index.php?module=cari_hasil_full&idbuku=2541 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | <p>Dlin or kayu besi (Eusideroxylon zwageri T.etB) is an important timber species in East Kalimantan.<br />
However, there are problems in the regeneration of this species. Mechanical method for seed scarification<br />
by cutting at the seed end where radicle emerges provided the best germination percentage (100 %)<br />
compareCi with untreated seed (75 %), while sulphuric acid (H2S04) had very detrimental effect on<br />
germination (0 %).<br />
Air layering method could be utilized to propagate genetically superior individuals and to increase<br />
forest production. The use of IBA I % gave higher success rate compared with without hormone<br />
treatment, even though statistically not significant. Branch diameter larger than 3 em resulted in complete<br />
failure of the branch to root. With regard to stem cutting the application of Rootone F at rates of 500 -<br />
1000 ppm gave the highest rooting ability (80 - 84 %), while no hormone treatment only resulted in 69<br />
% of the shoot to have roots.</p> |
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