Judul: Aplikasi Daminozide Pra Tanam Menggunakan Teknik Perendaman dan Vacuum Infiltration pada Bibit Tanaman Krisan Pot.
Abstrak: The aim of this research was to study the effect daminozide applications with several concentrations using the vacuum infiltration and immersion techniques on the growth of potted chrysanthemum. This research was conducted in laboratory and experimental field of Research Institute of Ornamental Plants, Pacet District, Cianjur Regency, West Java, from February until July 2010. The design of the research using Split Plot design. The main plot consisted of five levels of daminozide (Alar consist of 85% daminozide), which are 0.213 g/l, 0.425 g/l, 0.850 g/l, 2.125 g/l, and 4.250 g/l. The subplot consisted of two daminozide application techniques, using vacuum infiltration and immersion techniques. The result of this study indicate that vacuum infiltration or immersion technique did not significantly affect to the observed characters. Daminozide concentration applied significantly affected to number of shoots, the main stem height at 2 weeks after planting pre pinching, plant height, number of leaves, the total number of flowers, flower stem length, and carotenoid content. Interaction of concentration and application techniques of daminozide showed significantly different results on the main stem height at 7 weeks after planting and anthocyanin content.
Keyword: 

Judul: Induksi Keragaman Dua Varietas Krisan (Dendranthema grandiflora Tzvelev) Dengan Iradiasi Sinar Gamma Secara In Vitro
Abstrak: The research aims were to study the effect of gamma irradiation doses on Chrysanthemum (Dendranthema grandiflora Tzvelev) and increasing the genetic diversit. The research were conducted at IPB Tissue Culture Laboratory, BATAN Laboratory, and IPB Micro Tehnique Laboratory, during February–November 2010. This research used completely randomized design with two factors. The first factor is varieties of Chrysanthemum, including Dewi Ratih and Puspita Nusantara. The second factor is five doses of gamma irradiation (0, 20, 40, 60, 80 Gy). The result showed that the interaction between varieties with doses of gamma irradiation affected growth of plants and the number of chloroplast in guard cell. The number and size (length and width) of stomata were influenced by a varieties and and irradiation dose as a single factor. Increasing doses of gamma irradiation could increase the length and width of stomata. LD50 of krisan planlets were obtained 22.22 Gy for Dewi Ratih and 22.85 Gy for Puspita Nusantara. The gamma radiation dose 20 Gy produced 13 potential mutant on Dewi Ratih and Puspita Nusantara varieties. Putative mutants characteristic showed small leaves and no serrated, reddish stems, stunted, rosette, and variegata leaves.
Keyword: 

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: