Judul: Pengelolaan Kebun Induk dan Pembibitan Kelapa Sawit (Elaeis guineensis Jacq.) di Minamas Research Center, Minamas Plantation, Riau.
Abstrak: This internship program was aimed generally to improve skills and experience in both technical aspect of oil palm planting and man management. This program especially was aimed to analyze the vigourity of oil palm germ so that can produce a more quantitative description of vigourous germ with the approach of germ vigourity grow strength (VKT bibit) and germ stamina. This program was conducted from February to June 2013 at Minamas Research Center (MRC), PT Anugerah Sumber Makmur, Minamas Plantation, Riau. This program used three methods (1) working actively in Breeding Department of MRC as daily worker, co-mandor, and co-field assistant, (2) holding interviews and discussion with workers, mandors, assistant, and manager, (3) book studying as additional material for descriptive analysis. This analysis activity used the descriptive analysis, t-student test, and correlation test. Secondary data consisted of site map, areal broad, soil and climate condition, basic population, organization structure, and plant condition. The last pecentation of selection, the Socfindo germ form three blocks resulted 85.9%. The germ vigourity analysis with the approach of germ vigourity grow strength resulted that the Socfindo type germs which were planted in block B6 of PSE nursery had the highest VKT around 70%. Meanwhile block A2 and A3 had VKT around 60%. The germ vigourity analysis with the approach of germ stamina resulted for Socfindo type vigourous germ was 0.89 ± 0.31 m3. From the test of comparation between the result of vigourous analysis resulted not different at the α test rate = 5%. From this we can concluded that qualitative analysis (selection) as conventional method to anlysing vigourity germ has a same result with the quantitative method (VKT bibit and germ stamina) and feasible to use this as method to analysis germ vigourity.
Keyword: selection, Minamas Research Center, germ vigourity, germ stamina

Judul: Pengelolaan Pembibitan Kelapa Sawit ( Elaeis guineensis Jacq) Di Kebun Teluk Bakau, PT Bhumireksa Nusa Sejati, Kabupaten Indragiri Hilir, Provinsi Riau
Abstrak: This internship was aimed to acquire the knowledge, technical skills and management of trainer students to work professionally, increase the soft skill of students to prepare themselves to be professional worker, especially in management aspects of oil palm nursery. This internship has been done in Teluk Bakau Estate, PT Bhumireksa Nusa Sejati, since February to June 2014. The technical aspects that were carried out during the internship consist of following the existing activities in the oil palm nursery in Teluk Bakau Estate, fertilizing the immature plants, weed control on immature plants, and harvesting. Mananejerial aspects were performed as a companion foreman and division assistant. Observation were carried out on germination growing percentage, seedling plant height, and of abnormal seedlings percentage in the pre-nursery. From observation, we found that seedling plan height increase about 2 cm/week, germination growing was 95.9 percent, and abnormal seedlings was 5.9 percents.
Keyword: Bogor Agricultural University (IPB), pre-nursery, germination growing, abnormal seedling

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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