Judul: Studi Keanekaragaman Genus Fungi Mikoriza Arbuskula di Sekitar Perakaran Pohon Jabon (Anthocephalus cadamba Robx Miq.) Alami
Abstrak: Mycorrhiza is a mutualism symbiotic between fungi with high levels of plant roots, one of the soil fungi that has a high rate of spread is AMF. Many studies that discussed the use of AMF to increase plant growth, such as jabon.However the research that related of AMF diversity on jabon plant also needs to be done. This research is done by AMF trapping, firstly AMF trapping is taken from various location of soil smpel in Indonesia. After that one, isolation, characterization, and identification spores that have been found in Forest Biotechnology Laboratory PPSHB IPB, and Soil Microbiology Laboratory Research and Development Center of Forest Resources Bogor. AMF genus are found around the jabon roots namely Glomus, Acaulospora, Gigaspora and Scutellospora. Genus that dominated is the genus Glomus. The efective host plant for AMF trapping is Sorgum bicolor, because the Sorgum bicolor has roots that are more responsive than Pueraria javanica
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Judul: Keanekaragaman Fungi Mikoriza Arbuskula di bawah Tegakan Jabon (Anthocephalus cadamba) di Madiun, Jawa Timur
Abstrak: Plants can grow well when it was supported by the available of soil microbes, one of them was arbuscular mycorrhyzal fungi (AMF). AMF was symbiotic mutualism that it was between fungi and roots. AMF could be symbiotic almost 90% of the high levels of plants, one of them was jabon (Anthocephalus cadamba). The research purposes to identify the diversity of AMF under the jabon stands. The methods which used in this research was the root coloring and decanthing methods. Preservation of spores to identify genus carried on by using polyvinil alcohol lactid acid glyserol (PVLG). The result of this research showed that the chemical content of soil didn’t have effect to the differences of root colonization on each research location. The various genus under jabon stands which are located in Durenan dry land and Sudimoroharjo dry land, such as Glomus, Acalauspora dan Enterospora, meanwhile Sudimoroharjo former rice fields could only be found 2 genus, such as Glomus and Acalauspora. Glomus had very wide spreading and dominate in the research location.
Keyword: jabon, genus, growth, diversity, arbuscular mycorrhizal fungi

Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: film tipis, sifat optik, litium niobat, chemical solution deposition, kecepatan putar