Judul: Efektivitas Mycofer® Terhadap Tanaman Kehutanan, Pertanian, Perkebunan, Bioremediasi, Dan Pakan Hijau Ternak (Kajian Pustaka)
Abstrak: INTRODUCTION. Application of AMF has been proven to be able to increase plant growth. Mycofer® has been produced and widely tried by Laboratory of Forest and Environmental Biotechnology, Center for Research on Biotechnology and Biological Resources (PPSHB), Bogor Agricultural Institute. Collection of research results on application of Mycofer® need to be conducted to learn the extent of Mycofer® inoculum application effectiveness on plants. Beside that, this activity could show the synergy of Mycofer® application on forestry crops, which up to now had been applied more frequently on agricultural crops. The objective of this research was to learn the extent of effectiveness of Mycofer® application on forestry, agriculture, plantation crops, bioremediation, and livestock forage crops. METHODOLOGY. Method used in this study was collecting and analyzing research results on application of Mycofer®, in the form of undergraduate thesis, master thesis, and dissertation in library of Laboratory of Forest and Environmental Biotechnology, PPSHB, IPB. RESULTS AND CONCLUSION. Results of study on a series of research on application of Mycofer® showed that Mycofer® was effective enough in associating with various forestry crops, such as teak (with single Mycofer® application and combination with bone meal), Sizygium spp. (with single treatment of Mycofer®), Ficus spp. (with single treatment of Mycofer® and its combination with Bio-organic), Swietenia macrophylla (with single of treatment of Mycofer® and its combination with fertilizer Suburin, and Gmelina arborea (with single Mycofer® treatment and its combination with 100 % Omega, 50 % Omega + 50 % NPK Plus, and 100 % NPK); with agricultural crops, such as: upland rice (with single Mycofer® treatment and its combination with fertilizer P, fertilizer Si, and fertilizer P + Si), tomato of TC variety and Arthaloka variety (with single Mycofer® treatment and its application with humic acid), Aloe vera and red onion (with single Mycofer® treatment), and soybean (with single Mycofer® and its combination (with Bradyrhizobium japonicum, biostimulant, and Bradyrhizobium japonicum + biostimulant); with plantation crops, such as: Pogostemon cablin (with single Mycofer® treatment), and cacao (with single Mycofer® treatment and its combination with FA); with bioremediation, such as on tailling media with Leucaena leucocephala (with single Mycofer® treatment and its combination with animal manure and compost fertilizer), with Acacia auriculiformis (combined with animal manure), and Gliricidia maculata (with single Mycofer® treatment and its combination with animal manure and compost); effective enough in soil media which was contaminated up to 45 % by petroleum, with Ficus spp.; and in peat soil media which was contaminated by petroleum with Calopogonium mucunoides; in acid soil medium of red yellow podsolic soil with high aluminum content (with single Mycofer® treatment and its combination with Rhizobium in crops of Pueraria javanica, Calopogonium mucunoides, Calopogonium caerelium, and Centrosema pubescens); livestock forage crops, such as: Setaria splendida (with single Mycofer® application and its combination with fertilizer N-P 25 % DS, 50 % DS, 100 % DS, Azospirillum, Azospirillum + fertilizer N-P 50 % DS, NPK fertilizer dosages of 0.7 g, 2.1 g, and 4.5 g per plant), and Chloris gayana (with single Mycofer® treatment and its combination with NPK fertilizer with dosages of 0.7 g,
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Judul: Inokulasi fungi mikoriza arbuskula untuk meningkatkan produktivitas dan mutu benih cabai (Capsicum annuum L.) serta efisiensi penggunaan pupuk P
Abstrak: Pepper production has not been achieving optimal results although demands are increasing. The low production of pepper is partly because the use of seed that has not qualified in quantity and quality. Besides that, pepper is cultivated on the marginal soil such as Ultisol. Nutrient availability, such as P, within the marginal soil is very limited whereas there is high fixations of P. Phosporus provide the important role to increase the quality and production of the seeds. One of the efforts to boost the availability and to make the using of P efficient is inoculating Arbuscular Mycorrhizal Fungus (AMF). This research is aimed to isolate indigenous AMF from hot pepper plant rhizosphere, effective AMF selection, and to examine AMF effectiveness in enhancing production and quality of pepper seeds while the use of fertilizer whether or not efficient was then observed. Research conducted contains of four experiments which each experiment links to another. Those are: [1] Isolation, characterization and purification of AMF for three places of hot pepper plantation; [2] Selection of AMF effective in increasing the growth of hot pepper; [3] Examination of AMF effectiveness in boosting up the production and quality of pepper seeds and using efficiency of P fertilizer, [4] Plant response to inoculation inoculum of indigenous mixed AMF and AMF Mycofer. The experiment was conducted in the laboratory and greenhouse Silviculture, Faculty of Forestry IPB, Forests and Environmental Biotech Laboratory, Research Centre for Biological Resources and Biotechnology IPB, and the PPPPTK Pertanian greenhouse. The soil samples were observed coming from the three planting sites rhizosphere hot pepper. Selections are made to the effective AMF isolates from single spore culture results and AMF Mycofer from laboratory Biotech Forest and Environment, Research Centre for Biological Resources and Biotechnology IPB. Testing the effectiveness of using the design plots are divided (split-split plot) in a Randomized design pattern, with three factors and three replications. The main plot is hot pepper cultivar: Laris type from Panah Merah and Tegar from Surabumi. The sub plot is the inoculant arbuscular mycorrhizae which are uninoculated and inoculated of Mycofer AMF 100 spores per seedling. The sub-sub plot are some level of P205 dose: without fertilizer P and with 100 kg/ha of P2O5, 125 kg/ha P2O5, 150 kg P2O5. Experiment of plant response to inoculation of indigenous mixed AMF and Mycfer AMF was arranged in split plot design, the main plot: hot pepper cultivar. The sub plot is the inoculant arbuscular mycorrhiza: uninoculated, inoculated of Mycofer AMF 100 spores per seedling, and inoculated of indigenous mixed AMF. The results showed that the pepper rhizosphere is found in three genus nine species spores i.e. two species of Glomus, three species of Gigaspora and four species of Acaulospora. Based on a single spore culture, it was found that only three species that can grow and develop properly; one species of Glomus spores (Glomus sp-1), one species of Gigaspora (Gigaspora sp-1) and one species of Acaulospora (Acaulospora sp-3). The three species of these spores are propagated for experimental material II. In AMF effective selection, spores of Mycofer showed better results than
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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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