Judul: Pengujian Galur Harapan Padi IPB di Provinsi Lampung
Abstrak: The objective of this research was to evaluate ten (10) lines of new plant type (NTP) of rice. This research was conducted on April – August 2013 in Desa Sukajaya, Kelurahan Raja Basa Jaya, Kecamatan Raja Basa, Kota Bandar Lampung, Lampung. Postharvest observation was conducted in Postharvest Laboratory, Department of Agronomy and Horticulture, Bogor Agricultural University (IPB). A Randomized Complete Block Design with a factor and three replication were used in this experiment. Ten lines of rice that were used are IPB 158-F-1-2-1, IPB 158-F-7-1-1, IPB 159-F-14-3-1, IPB 159-F-15-1-1, IPB 160-F-3-1-1, IPB 160-F-4-2-1, IPB 160-F-7-3-1, IPB 160-F-36-1-1, IPB 161-F-1-2-1, IPB 161-F-6-1-1, Ciherang, and Mekongga. The result showed that IPB 161-F-6-1-1 line is the best line and has important characters of new plant type of rice such as medium number of productive tillers, low number of empty grains, high number of filling grains, high weight of 1000 grains, and high productivity. IPB 160-F-3-1-1 and IPB 160-F-4-2-1- could also potentially developed.
Keyword: new plant type, multi location

Judul: Pengujian 10 Galur Harapan Padi (Oryza sativa L.) Tipe Baru IPB di Dramaga, Bogor dalam Rangka Uji Multilokasi
Abstrak: The experiment was conduted to evaluate production variability and agronomic traits of ten new plant type rice held at Sawah Baru Experimental Field, Dramaga, Bogor in April−August 2014. Experiment using Randomized Completely Block Design, single factor and three replications. The factor was lines which selected from advanced yield trial that have been conducted before (IPB160-F-36-2-1, IPB160-F-36-5-1, IPB160-F-36-25-1, IPB160-F-46-6-1, IPB160-F-54-2-1, IPB160-F-54-3-1, IPB160-F-54-21-1, IPB162-F-10-2-1, IPB162-F-17-1-1, IPB168-F-8-1-1), and two national varieties (Ciherang and Mekongga) as a check. The result showed that line IPB160-F-36-2-1 which productivity is 7.95 ton ha-1 have significantly higher productivity than Ciherang (6.62 ton ha-1) and Mekongga (6.86 ton ha-1). There are lines that have equal productivity from check with good yield components which potential for further development, that lines are IPB160-F-54-2-1 (7.37 ton ha-1) and IPB160-F-54-21- 1 (7.51 ton ha-1)
Keyword: Bogor Agricultural University (IPB), rice, new type, multilocation, line, high yield

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