Judul: Uji daya hasil galur kedelai (Glycine max (L.) Merr.) hasil iradiasi sinar gamma di tanah masam
Abstrak: Soybean ( Glycine max L. ) is one of the main commodity nuts in Indonesia because it is a source of vegetable protein important to diversify food. The objective of the research was to evaluate the yield of fifteen soybean lines gamma ray irradiation produced with two check varieties, namely Argomulyo as progeny and Tanggamus as drought acid tolerant varieties. The evaluation was aimed to gain information on the performance of agronomic characters of the advanced breeding lines of soybean and to select high yielding lines for released high yield variety soybean acid adaptability. The research conduted at folk’s field in Jasinga subdistrict, Bogor regency, in February 2012 – June 2012 as a part of preface trial. The design used was randomized complete block design (RCBD) with 3 replication. The research result showed that flowering time, harvesting time, number of productive node, number of total pod, number of seed/pod, and 100 seed weight were very significantly different among lines evaluated. Plant height, number of productive branch, number of filled pod, and number of total pod had positive correlated to seed/plant weight. Lines that showed of the good performance for the some characters to influenced the yield were M100-33-6-11, M100-96-53-6, dan M200-93-49-13.
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Judul: Uji Daya Hasil Beberapa Galur Kedelai (Glycine max L. Merr) di Mataram Pada Dua Musim Tanam
Abstrak: Soybean with high yield, large seed size and short maturity are become consumer’s preference recently. Indonesia import two tons of soybean grain each year. The development of new varieties is one of the approach to increase the national production of soybean. We have developed several potential lines of soybean to be released as a new variety. The productivity of these lines has to be tested in several locations. The objective of this research was to study the productivity of six soybean lines and four national varieties as standard in Mataram in two seasons. The research was carried on by Randomized Block, with three block replications. The result showed that based on the seed production per plant, during two seasons all the lines tested had higher productivity than Anjasmoro variety. KH 55 and KH 71 were the potential lines to be released as new varieties with high productivity and bigger seed size.
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Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology