Judul: he development of mycorrhizal research in the last 10 yeras in Indonesia
Abstrak: Mikoriza merupakan suatu hubungan symbiosis mutualisme anatara akar tanaman dengan fungi. Tujuan penelitian dilakukan untuk mengetahui perkembangan penelitian mikoriza pada periode 1980 hingga 2020 dan mengetahui fokus utama peneliti pada penelitian mikoriza pada 10 tahun terakhir. Data dikumpulkan dari situs portal garuda dan situs lainnya di internet. Hasil penelitian menunjukkan bahwa aspek terbanyak yang diteliti berasal dari kelompok Fungi Mikoriza Arbuskula dengan kategori dominan peningkatan pertumbuhan dan jenis komoditas terbanyak pertanian., Mycorrhiza is a symbiotic mutualism between the plantroots with fungi. The research aims to describe the development of mychorrizal research during periode of 1980 to 2020 and to know more specific interest of mycorrhizae research in Indonesia within last 10 years. Data were collected from portal Garuda situs and other situs in internet. The results show that the most interest aspects studied were Arbuscular mycorrhizal fungi with emphasies on increasing growth and commodity types mostly agriculture.
Keyword: mikoriza, perkembangan penelitian, simbiosis mutualisme, mychorriza, research developments, symbiosis of mutualism

Judul: Populasi dan Keanekaragaman Fungi Mikoriza Arbuskula Pada Ekosistem Kebun Kelapa Sawit di Jambi
Abstrak: Mikoriza adalah suatu struktur sistem perakaran sebagai manifestasi adanya simbiosis mutualisme antara fungi dan perakaran tumbuhan tingkat tinggi serta memiliki manfaat meningkatkan efektifitas akar tanaman dalam penyerapan nutrien dan air dalam tanah. Tujuan penelitian ini menganalisis keaneakaragaman dan populasi FMA pada ekosistem kebun kelapa sawit di Provinsi Jambi yang diberi perlakuan pemeliharan tanaman, serta untuk mengetahui perbedaan sporulasi FMA dengan media penangkaran Zeolit. Pengambilan sampel tanah diambil di lahan kelapa sawit di Provinsi Jambi. Penangkaran (trapping) dilakukan pada pot kecil berukuran 200 ml. Analisis data dilakukan menggunakan aplikasi SPSS 22 untuk mengetahui perbedaan perlakuan yang diberikan. Hasil penelitian menunjukkan bahwa perlakuan pemeliharaan tanaman memiliki pengaruh nyata terhadap peningkatan jumlah spora FMA. Perlakuan pemeliharaan tanaman tidak memberikan pengaruh terhadap kolonisasi akar inang. Genus spora yang ditemukan pada lahan kelapa sawit adalah genus Glomus, Acaulospora, Gigaspora dan Scutellospora dimana tidak terdapat perbedaan jumlah genus pada saat sebelum dan setelah adanya trapping., Mycorrizae is a root system that manifesting the symbiotic mutualism between fungus and plant, and mycorrizae also have a benefit such as increase the effectiveness of plant root in water and nutrient absorption. The objective of this research are to analyses the diversity and population of AMF on oil palm land Jambi Province, and to study the difference of AMF sporulation with zeolit as a media. Soil sample were collected from oil palm land in Jambi Province. Spore trapping using small pots with 200ml sized. Data analysis is using SPSS 22 app to get difference of treatment that used to the sample. The result of the research are shown that plant maintenance technique have a significant effect to increase the spora amount. Plant maintenance technique do not have a significant effect to AMF sporulation. Identified AMF genera are Glomus, Acaulospora, Gigaspora and Scutellospora which does not have any difference with before and after trapping treatment.
Keyword: arbuscular mycorrhizal fungi, biodiversity, oil palm plantation, plant maintenance technique

Judul: Separation of Neodymium from U3Si2/Al Fuel Plate for Burn-Up Determination
Abstrak: Neodymium is a common fission product produced in nuclear fission reactions. Neodymium in this study was chosen as a burn-up indicator for U3Si2/Al fuel element plates because the neodymium isotope is a stable fission product with a fairly high yield. Some procedures were carried out to separate neodymium, starting with the separation of cesium isotopes (137Cs, 134Cs) through the precipitation method, then separation of uranium isotopes (235U, 238U) and plutonium isotopes (239Pu, 238Pu) with Dowex 1x8 ion exchange resin, and separation of neodymium (Nd), samarium (Sm), as well as cerium (Ce) with Dowex 1x4 ion exchange resin. The Cs recovery reached 99.95%. The U and Pu isotopes resulting from the separation are subjected to an electrodeposition process and the weight of each isotope can be measured with an alpha spectrometer. The separation results of Nd from Sm and Ce have been proven using an XRF spectrometer. The neodymium isotopes separation was corrected using the standard addition method, and an average total Nd content of 2.4 ppm was obtained in the PEB U3Si2/Al bottom solution. It is hoped that this separation method can be applied in determining burn-up of nuclear fuel.
Keyword: neodymium, burn-up indicator, U3Si2/Al fuel plate