Judul: Kajian Penggunaan Hormon IBA, BAP dan kinetin terhadap Multiplikasi Tunas Tanaman Penghasil Gaharu (Gyrinops versteegii (Gilg) Domke) secara In Vitro
Abstrak: Agarwood is one of non timber products which has a high economic value. Nowadays, the demand of agarwood is still depending on natural forest. The high demand which is followed by high persecution of agarwood in natural forest make the population of agarwood highly decreased. In order to straighten up the agarwood production, the government with the President decision (Keppres No 43/1978) decide that to whom the exporter who has agarwood has to have a CITES license. The conservation to some variety of agarwood is increased; Aquilaria spp. and Gyrinops spp. Was included in Appendix II CITES on Oktober 2nd until 14th 2004 at Bangkok. This research was aimed to know the best combination of auxin (IBA) and cytokinin (BAP and kinetin) in basic medium of Murashige and Skoog towards the multiplications of Agarwood production plant explants by in vitro. The plant material that was used was the sterile explants sprout of G. versteegii. Explants was grew in MS medium with the addition of growth hormone IBA (concentration of 0.00, 0.05, 0.10 mg/l), BAP (concentration of 0.00, 0.10, 0.20 mg/l) and kinetin (concentration of 0.00, 0.20, 0.40 mg/l). This research was arranged using the RAL Factorial with 17 of treatments in 6 times repetition. The observation was done in 8 weeks after planting to all of explants that had been planting include some parameters such as the height growth, , internodes total, buds total, total of leaves, the mortality percentage, callus production process, browning and contamination. The result of this research showed that the combination treatment of BAP+IBA that produced the most of total average leaves was in the treatment of BAP 0.10 mg/l (22.83 sheets), whereas in combination of BAP + kinetin that produced the most of total average leaves was in the treatment of BAP 0.10 mg/l + kinetin 0.20 mg/l (30.00 sheets). The buds multiplication in treatment with BAP + IBA worked optimally in 4 MST, with the total of 7.00 of buds in the end of observation which produced by the treatment of BAP 0.10 mg/l + IBA 0.05 mg/l. The highest bud multiplication was produced from the combination of BAP and kinetin in the treatment of BAP 0.10 mg/l + kinetin 0.40 mg/l and BAP 0.20 mg/l with the total of 9.17 of buds. The percentage of explants that produce callus was 88,24% (90 of 102 explants). The conclusion of this research was the effect of the addition of plant growt regulator combination of IBA (concentration of 0.00, 0.05, 0.10 mg/l) with BAP (concentration 0.00, 0.10, 0.20 mg/l) and IBA (concentration 0.00, 0.05, 0.10 mg/l) with kinetin (concentration 0.00, 0.20, 0.40 mg/l) give the real response in parameter number of buds and leaves. Whereas on parameter like the height growth and internodes total give real and not different response.
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Judul: Aplikasi bakteri Methylobacterium sp. terhadap  pertumbuhan dan perakaran tunas gaharu (Aquilaria malaccensis Lamk) hasil In-vitro
Abstrak: Aquilaria malaccensis is forest plant species that have substances of resin and economic valuable. For many people and industry, resin usually called "gaharu", used for medicine like stomachache drug, asphyxia, pregnant lasing and rheumatism; industrial raw material of parfume and cosmetic also complement of custom need. In technology progress and increasing of agarwood exploited make agarwood commodity has been decrease. So, by CITES its classified as one of the scare crop (Appendix II). Various method propagation had been conducted including breeder of vegetatif in-vitro culture (biotechnology) with it varioous modification treatment of griwth subtance regulator, condition of other growth factor and also environment bur rooting agarwood/gaharu still being one of many problems in this propagation method. Bacterium application of Methylobacterium sp. which have been reported to yield phytohormon or growth subtance regulator that needed for growth and development plant that hpefully can be one of alternative way to overcoming constraint in culture in-vitro . The aim of this research are to study the influence, to decide the strain and to decide the efective soaking time of Methylobacterium sp. for growth and rooting of Aquilaria malacceensis (gaharu) shoot
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Judul: Konstruksi Persamaan Friedmann Alam Semesta Friedmann-Lemaitre-Robertson-Walker Termodifikasi Materi Gelap Superfluida
Abstrak: Kosmologi merupakan salah satu objek kajian dari teori relativitas umum. Salah satu model dalam kosmologi adalah model kosmologi Friedmann. Model kosmologi Friedmann dibangun berdasarkan asumsi bahwa materi dan energi terdistribusi secara homogen dan isotropik di alam semesta. Teori relativitas umum dapat dimodifikasi melalui pendekatan teori materi gelap superfluida (MGS). Persamaan medan Einstein untuk teori MGS dapat dirumuskan melalui prinsip aksi dengan memodifikasi Lagrangian pada aksi teori MGS. Selanjutnya dengan memilih metrik Friedmann-Lemaitre-Robertson-Walker (FLRW) datar dengan indeks kurvatur sama dengan nol, dapat dibangun suatu bentuk persamaan Friedmann yang dimodifikasi teori MGS.
Keyword: kosmologi, teori materi gelap superfluida, persamaan medan Einstein, metrik FLRW, persamaan Friedmann.