Judul: Uji Pengusangan Cepat Terkontrol (PCT) untuk Menduga Viabilitas Benih Cabai Merah (Capsicum annuum L.) Setelah Penyimpanan
Abstrak: The objective of this research was to find combination of moisture content and duration of controlled deterioration test (CDT), that can estimate viability of chili pepper seeds after 4 and 6 months storage period. Chili pepper seed consists of 6 lots with different expired dates, they were Bendera, Celena, Gelora, Landung, Pueddes, and Tegar. This research were divided into 3 steps. First step was to determine the initial viability of each seed lots. The second was to store seed lots for 4 and 6 months in alumunium foil and polyethylene plastic packaging at storage room with temperature of 28 - 300C and 50-57% relative humidity. The last step was controlled deterioration test with different conditions of moisture content and duration which implemented in waterbath with temperature of 410C. The results of this research, there was no difference between seed viability after storage packaging in alumunium foil and polyethylene plastic.The germination of chili pepper seed after 4 and 6 months storage in alumunium foil and polyethylene plastic was closely correlated with the value of vigor index after CDT (moisture content adjusted to 21% / 410C / 24 hours), with correlation coefficient > 95%.
Keyword: 

Judul: Vigor daya simpan dan vigor kekuatan tumbuh benih pada beberapa genotipe cabai (Capsicum annuum L.)
Abstrak: Chili peppers (Capsicum annuum L.) is one of commercial vegetables which has high economic value in Indonesia. The research was aimed to study the storability period and vigor of nine genotypes of chili pepper seeds through salinity stress and drought stress. The experiment of accelarated aging was using chemical method through methanol (20%) soak period i.e 1, 2 and 3 hour. The genotype number 307 (Bhaskara F1) has highest storability (VDS) based on dry weight of normal seedlings (BKKN) 3.99 mg, 2.77 mg and 1.29 mg, germination percentage (DB) 7.45%, 4.67% and 2.08%, speed of germination (KCT) 3.17% etmal-1, 1.93% etmal-1 and 1.14% etmal-1, and seedling growth rate (LPK) 1.32 mg, 1.54 mg and 1.20 mg. The experiment of sub optimum condition through salinity stress was using NaCl concentration treatment that is 2500, 3750 and 5000 ppm. The genotype number 293 (SKB 27) was elucidated as the most tolerant genotypes to salinity stress through dry weight of normal seedlings 5.15 mg, 5.06 mg and 4.67 mg, germination percentage 68.52%, 57.58% and 53.94%, speed of germination 16.60% etmal-1, 14.30% etmal-1 and 14.00% etmal-1, and seedling growth rate 1.48 mg, 1.54 mg and 1.47 mg. Experiments vigor chilli pepper seeds to drought stress was using PEG 6000 at -1.0, -1.5 and -2.0 bar. The genotype number 307 (Bhaskara F1) was elucidated as the most resistance genotypes to drought stress through dry weight of normal seedlings 5.07 mg, 5.02 mg and 4.69 mg, germination percentage 60.84%, 60.81% and 56.59%, speed of germination 16.04% etmal-1, 15.13% etmal-1 and 13.88% etmal-1, seedling growth rate 1.52 mg, 1.51 mg and 1.49 mg and the length of radicle (PR) 2.20 cm, 1.46 cm and 1.81 cm.
Keyword: vigor, salinity, rapid, drought, chili, Bogor Agricultural University (IPB)

Judul: Formulasi Hamiltonian untuk Menggambarkan Gerak Gelombang Soliter Dimensi Tiga di Permukaan Laut
Abstrak: Gelombang permukaan adalah gelombang yang terjadi perbedaan rapat massa antara air dan udara. Salah satu gelombang permukaan yang ditinjau adalah gelombang soliter. Formulasi gelombang soliter dilakukan dengan menggunakan formulasi Hamiltonian.
Keyword: