Judul: Pengaruh Vinase Sorgum dan Endomikoriza terhadap Pertumbuhan Semai Pongamia pinnata
Abstrak: Pongamia pinnata known as malapari is a tree species found in coastal areas that potentially as bioenergy producer. Efforts to ensure the availability of malapari good quality seedlings can be obtained through application of liquid organic fertilizer (LOF) and mycorrhizal inoculation. Vinasse is a liquid waste produced by the process of sorghum bioethanol production, and it contains nutrients which are useful for plant growth. Inoculation of mycorrhizal fungi is able to support the growth success of malapari seedlings through nutrients absorption. The objectives of this research were to test the appropriate concentration of sorghum liquid organic fertilizer and endomycorrhizal inoculum as well as to test the combination effect of vinasse and endomychorrizal inoculum application towards malapari seedling growth. The vinasse treatments were consisting of 3 levels: 0% (V0), 2.5% (V1), 5% (V2), and mycorrhizal treatment were consisting of 3 levels: without mycorrhiza (M0), inoculated with Glomus aggregatum (M1), and inoculated Glomus mosseae (M2). The results of this research showed that mycorrhizal treatment had very significant effect to promote the percentage of mycorrhizal infection, and also had significant effect to height growth and total dry weight of malapari seedlings.
Keyword: vinasse., Pongamia pinnata, mycorrhizae, fertilizer

Judul: Isolation  and  Selection  of Endomycorrhizae  Fungi  and  the  Effect  on  Sorghum Growth and Yield
Abstrak: The main problem of phosphorus (P) manure added in the most soil in Indonesia is the low of mobility. Absorption of P in soil is very high, so the plant would suffer because of P deficiency. Recently, the farmers have problem with the cost and supply of P manure. Many efforts have been done, for instance by using biological manure with inoculation of Endomycorrhizae fungi. The Endomycorrhizae fungi has been reported that it could enhance the plant in uptaking phosphorus in the host. The aim of this research is to isolate and select the Endomycorrhizae fungi from the transmigration area Kuamang Kuning, Kabupaten Muara Bungo, Propinsi Jambi and its effect on sorghum growth and yield. This research has been done in Greenhouse of Department of Soil Science, Faculty of Agriculture, IPB. Isolation, Endomycorrhizae isolate purifYing, and measurement of several parameters were conducted in Soil Biology Laboratory, Faculty of Agriculture, IPB. This research has been carried out since Mei 2000 until June 2001.
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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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