Judul: Peningkatan produksi dan mutu benih botani (True Shallot Seed)bawang merah (Allium cepa var. ascalonicum B.) dengan BAP dan Boron, serta serangga penyerbuk
Abstrak: True shallot seed (TSS) is one potential alternative of seed source to be developed and be able to solve the problem of shallot seed in Indonesia. Constraints in TSS production are the low flowering and seed formation. Such attempts to improve TSS production is through increasing flowering using benzylaminopurine (BAP), pollen viability using boron and pollination using insect pollinators. The aims of the research were to enhance flowering, pollen viability, TSS production and quality using BAP and boron, as well as study mating system in TSS production and enhance TSS production and quality using insect pollinators. The study consisted of three experiments and was conducted in two location i.e. Lembang (high land - 1250 m asl) during August 2011-August 2012 and in Subang (low land - 100 m asl) during March-August 2012. In each location the experiment was carried out in two steps. In the first step BAP at 0, 50, 100, 150, and 200 ppm and boron at 0, 1, 2, 3, 4 kg ha-1 were used and arranged in randomized block design with three replicates. In the second step there were two trials, namely experiments using self-pollination and cross-pollination, as well as experiments using insect pollinators i.e. bees (Apis mellifera, Apis cerana, Trigona sp.) and green fly (Lucilia sp. - Calliphoridae) were employed, with open pollination as control were arranged in a randomized block design and replicated five times. The results showed that BAP increased flowering, pollen viability and TSS production in Lembang. While boron 1-4 kg ha-1 increased flowering, pollen viability, TSS production and quality in Lembang. The optimum concentration of BAP and dosage of boron for TSS production in Lembang were 37.5 ppm and 2.9 kg/ha respectively. In Subang, BAP enhanced flowering and pollen viability. BAP did not increase the TSS production and quality. Boron also did not affect flowering, pollen viability, TSS production and quality in Subang. Crosspollination was better in producing the yield and quality of TSS than self-pollination in Lembang, but in Subang resulted in lower germination. Honeybee Apis cerana was the most effective pollinator in increasing the yield and quality of TSS both in Lembang and Subang. Increasing production of TSS by A .cerana was 56.8% with 77% germination in Lembang, while in Subang that was 61.3% with 83% germination.
Keyword: 

Judul: Aplikasi NAA dan BAP untuk Meningkatkan Produksi Benih Umbi Bawang Merah asal True Seed of Shallot (TSS).
Abstrak: Penggunaan biji botani bawang merah (true seed of shallot atau TSS) sebagai benih mampu menghindari penyakit tular umbi, namun belum banyak digunakan karena teknik budidaya bawang merah dari TSS belum dikuasai petani. Diperlukan benih umbi asal TSS dalam jumlah besar dan berukuran kecil agar benih umbi yang digunakan petani bebas penyakit. Mayoritas penanaman TSS hanya menghasilkan 1-2 umbi per tanaman. Penelitian ini bertujuan untuk meningkatkan jumlah umbi asal TSS melalui aplikasi NAA dan BAP yang dilaksanakan menggunakan rancangan kelompok lengkap teracak satu faktor mencakup air (kontrol), BAP 50 ppm, BAP 100 ppm, NAA 10 ppm, NAA 10 ppm + BAP 50 ppm, NAA 10 ppm + BAP 100 ppm, NAA 20 ppm, NAA 20 ppm + BAP 50 ppm, dan NAA 20 ppm + BAP 100 ppm; empat ulangan. Perlakuan dilakukan pada 5, 6, 7, dan 8 minggu setelah tanam. Hasil penelitian menunjukkan bahwa aplikasi perlakuan tidak meningkatkan jumlah umbi per tanaman. Aplikasi BAP 50 ppm mampu menginduksi 4 umbi per tanaman pada varietas Trisula, dan 8 umbi per tanaman pada varietas Sanren meskipun dengan perentase yang rendah. Sebanyak 83% umbi varietas Trisula dan 78% umbi varietas Sanren termasuk dalam kategori umbi mini dan kecil.
Keyword: Allium cepa L. var. Aggregatum, auksin, sitokinin, Trisula, Sanren

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
Keyword: