Judul: Uji daya hasil 9 genotipe tomat (Lycopersicum esculentum Mill.) pada budidaya dataran rendah (Tajur, Bogor)
Abstrak: Penelitian ini bertujuan untuk menguji daya hasil dan kualitas 9 genotipe potensial tomat yang ditanam di dataran rendah. Penelitian dilaksanakan di Kebun Percobaan IPB Tajur yang terletak pada ketinggian 190 mdpl dan Laboratorium Pascapanen Departemen Agronomi dan Hortikultura, IPB. Penelitian dimulai bulan Maret sampai Agustus 2011. Bahan yang diuji terdiri atas 7 genotipe potensial, yaitu B0, M0, P0, SMO64, R0, P, NP dan 2 pembanding EF1(EMS) dan PrmT (Permata). Penelitian ini menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) satu faktor dengan 7 genotipe potensial tomat dan 2 pembanding sebagai perlakuan dengan 3 ulangan sehingga terdapat 27 satuan percobaan. Dari semua genotipe dan varietas yang diuji, tiga diantaranya memiliki tipe pertumbuhan determinate (P, R0 dan EF1) dan enam memiliki tipe pertumbuhan indeterminate (B0, M0, P0, SMO64, P dan Prmt). Dari hasil penelitian, dapat dilihat bahwa pertumbuhan genotipe yang diuji cukup baik, tiga genotipe (B0, M0 dan SMO64) yang diuji memiliki potensi produktivitas diatas 30 ton/ha, walaupun dari segi produktivitas masih di bawah varietas pembanding. Dari keseluruhan peubah yang diamati genotipe B0 memiliki tinggi tanaman tertinggi, varietas Prmt memiliki jumlah daun dan jumlah buah terbanyak, varietas E F1 menghasilkan bobot terbesar, genotipe SMO64 memiliki ukuran buah serta bobot rata-rata buah paling tinggi. Karakter semua peubah yang diamati terbukti memiliki heritabilitas yang tinggi (h² bs = 70.55-96.52%). Hal ini menunjukkan bahwa penampilan lebih ditentukan oleh faktor genetik. Karakter demikian lebih mudah diwariskan pada generasi berikutnya.
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Judul: Uji Daya Hasil 12 Genotipe Tomat (Solanum lycopersicum L.) di Dataran Rendah (Tajur, Bogor).
Abstrak: Development of tomato which is adaptive in lowland is important because land availability in the highlands being limited. The study aims to test and compare the yield and quality of 10 genotypes with two compared varieties grown in the lowlands. The study uses Randomized Completely Block Design one factor with three replications. Materials used are 10 potential tomato genotypes and 2 compared varieties, Intan and Ratna. Observations were conducted on 13 qualitative characters which include hypocotyl color, growth type, leaf types, leaf attitude, leaflets attitude, infloresence type, flower color, fruit shape, fruit blossom end shape, color of immature fruit, color of ripe fruit, flesh color, shape of pistil scar, and 17 quantitative characters which includes plant height, leaf size, pedicel length, number of locules, number of inflorescence, number of flowers per inflorescence, fruit set, number of fruit per plant, days to flowering, days to harvesting, fruit size, flesh thickness, weight per fruit, fruit weight per plant, productivity, fruit hardness, total soluble solid (PTT). The results showed that tested genotypes have different character in leaf attitude, fruit shape, and fruit blossom end shape compared with varieties Intan and Ratna. Genotype that can be continued for multilocation field trials is F8 005001-4-1-12-3-17-3 genotype because it has a length fruit (5.55 cm), flesh thickness (0.69 cm), pedicel length (3.1 cm), and leaf width (33.48 cm) better than the two compared varieties, yields (45.24 ton/ha) and fruit set (70.8%) as well as both compared varieties, weight per fruit (73.03 g ), fruit diameter (4.99 cm), and PTT (1.58 oBrix) better than varieties Ratna, and plant height (76.77 cm), fruit number per plant (39), fruit weight per plant (1 413.70 g), and fruit hardness (1.35 kgf cm-2) higher than varieties Intan.
Keyword: genotype, lowland, productivity field trial, Solanum lycopersicum L., tomato

Judul: Kekonsistenan Hamiltonian pada Gerak Gelombang Interfacial
Abstrak: The interfacial wave is an internal wave that occurs at boundary of two layers fluid. It appears because there is difference of mass density between the two layers. The objective of this thesis is to formulate the motion of internal wave with flat base and flat as well as free upper bound surface. The motion equation obtained is a Hamiltonian system. The Hamiltonian in this system is expressed by variable of wave deviation and horizontal component of potential velocity. Under assumption that interfacial wave moves only in one direction, it can be shown that the Hamiltonian depends on the solution of the wave motion equation. The coefficients of the equation depend on the physical characteristics of the two layers of fluid, i.e. thickness and mass density. The numerical results show that Hamiltonian in the system is constant. It is consistent with Hamiltonian characteristic, which does not depend on time.
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