Judul: Penggunaan Beberapa Jenis Sitokinin Terhadap Multiplikasi Tunas dan Pertumbuhan Binahong (Anredera cordifolia [Ten.] Steenis) secara In Vitro
Abstrak: Biological diversity in Indonesia occupied third place in the world that using to fulfill needs of basic necessities and supply of medicines. Utilization of medicinal plant in domestic region become larger in a row with improvement of people awareness to consumed natural medicines. Binahong (Anredera cordifolia [Ten.] Steenis) is one of medicinal plant that have a potention to expand as medicine basic commodity. It also useful to treat any diseases and motivated some researchers to examine their bioactive substances. This examination also need research about multiplication using tissue culture technique. Application various of single cytokinin in different concentration is expected able to influenced shoot multiplication and growth of binahong to keep this plant preservation. The research consist of two experiments that first experiment is monitoring effect of sterilization treatment to contamination level, browning and death. Whereas second experiment is monitoring about the effect media treatment in various of cytokinin (AdSO4, BAP, kinetin and thidiazuron) with different concentration (0,50; 1,00; 1,50; and 2,00) mg/l to shoot multiplication and growth of binahong. In second experiment compiled using RAL statistic method with 10 repetations. Parameters are shoot amount (adventif and lateral shoot), height increment, leaf amount, root amount and callus process. In sterilization treatment shows addition of 70 % alcohol during 3 minutes gived highest success percentage (92,76 %). Lowest success percentage happend in control sterilization treatment (46,99 %). Shoot multiplication and growth of binahong shows in 1 MST. This research produced two various of shoots which is adventif shoot ang lateral shoot. Average great amount of shoots produced by 1,50 mg/l kinetin treatment (2,10 adventif shoot) and 1,50 mg/l BAP (3,90 lateral shoot). Control media not produced both of shoots. MS media with addition 0,50 mg/l kinetin showed average height increment and the best amount of leaves are 4,33 cm and 4,70 sheet. In every treatment shows root formation with greatest number produced by control media (8,80 roots). Callus formed in great part of explants that planted in treatment media except in AdSO4 (0,50; 1,00; and 2,00) mg/l and control media. Conclusion of this research is addition various of cytokinin with different concentration in MS media have obvious influental to the parameters.
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Judul: Multiplikasi Tunas Suweg (Amorphophallus paeoniifolius (Dennst.) Nicolson) dengan Zat Pengatur Tumbuh BAP dan NAA secara Kultur Jaringan
Abstrak: The utilization of suweg (Amorphophallus paeoniifolius) in Indonesia has been known since the Japanese colonial period as source of carbohydrate. Suweg is beneficial for diabetes, digestion, liver, and increase appetite. The cultivation of suweg is by planting its eye shoot of tuber’s skin, the main eye shoot of tuber, the whole tuber, sapling from the tuber, and seedling. But, there are some problems with that technique which are the habitat where it grows, planting time, and the quality of the result is not uniform. So another cultivation effort is needed which is tissue culture. Based on Isnaini et al. (2012), tissue culture of suweg produces few shoots so it needs further study in order to produce many shoots in a callus. This research was done by the addition of Plant Growth Regulators (PGR) NAA and BAP that is potential for shoot growth. The aim of this study is to determine the effect of BAP and NAA in suweg shoot multiplication. This research was conducted at the Laboratory of Plant Tissue Culture Conservation Centre Bogor Botanical Garden, from June until September 2012. The research was designed by using a two-factor factorial experimental design on the basis of completely randomized design (CRD). The first factor is the concentration of BAP with four levels which are 0 mg/l, 1 mg/l, 2 mg/l, and 3 mg/l. The second factor is the NAA concentrations with four levels which are 0 mg/l, 0.25 mg/l, 0.5 mg/l, and 0.75 mg/l. Observed was done to explants browning, contamination (bacteria and fungi), callus color, callus texture, number of shoot, and the number of roots. The result shows the percentage of successful explant survival is 94.17% or 226 explants. Contamination by bacteria and fungi are 2.08 or 5 explants, and browning are 3.75% or 9 explants. Explant with compact texture is 34.58% and explant with crumb texture is 63.33%. The most root growth was found in the treatment of 1 mg /1 BAP + 0.75 mg/l NAA is 2.87 root/ week. The highest number of shoot in the treatment of 1 mg/l BAP + 0.25 mg/l NAA is 0,47 shoot/ week. The conclusion of this study is that the shoot multiplication was occurred in three explants, which are in the treatment of 1 mg l BAP + 0.25 mg/l NAA, 3 m/l BAP + 0.5 mg/l NAA and 3 mg/l BAP + 0.75 mg/l NAA.
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Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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