Judul: Physiological Quality of Peanut Seed (Arachis hypogeae L.) Variety Kancil with Different Sizes
Abstrak: Kacang tanah merupakan tanaman kacang-kacangan penting yang memiliki kandungan protein dan lipid yang tinggi. Produksi dan produktivitas kacang tanah ditentukan oleh kualitas benih. Penelitian ini bertujuan untuk mengidentifikasi pengaruh ukuran benih terhadap viabilitas dan vigor benih kacang tanah (Arachis hypogaea L.). Penelitian dilaksanakan pada bulan Januari hingga April 2023 di Laboratorium Pengolahan Benih dan Laboratorium Pengujian dan Penyimpanan Mutu Benih, Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor. Penelitian disusun dalam faktor tunggal Rancangan Acak Lengkap dengan tiga kali ulangan. Perlakuan berupa ukuran benih yang dikelompokkan menjadi 4 kelompok yaitu kecil (≤0,75 cm), sedang (kecil  x  besar), besar ( 1,13 cm), dan tidak dipilah. Ukuran besar dan sedang memiliki permukaan biji yang halus, sedangkan ukuran kecil memiliki permukaan biji yang keriput. Semua ukuran biji diidentifikasi biji bulat. Ukuran benih berpengaruh nyata terhadap vigor benih, namun tidak berpengaruh nyata terhadap viabilitas benih. Ukuran benih yang besar menunjukkan vigor yang lebih tinggi dibandingkan ukuran lainnya. Ukuran benih tidak berpengaruh nyata terhadap daya simpan benih yang ditunjukkan dengan perkecambahan benih setelah pemasakan dipercepat. Penggunaan benih ukuran besar yang memiliki vigor tinggi sangat diperlukan untuk produksi dengan lingkungan yang kurang baik., Peanut is an important legume crop that has high proteins and lipids content. Peanut production and productivity were determined by seed quality. This research was aimed to identify the effect of seed size to peanut (Arachis hypogaea L.) seed viability and vigor. The research was carried out from January to April 2023 in Seed Procesing Laboratory and Seed Quality Testing and Storage Laboratory, Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University. The research was arranged in single factor - A Completely Randomized Design with three reptitions. The treatment is seed size that was categorized in 4 groups, i.e small (≤0,75 cm), intermediate (small  x  large), large ( 1,13 cm), and unsorted. Large and intermediate sizes had smooth seed surface, while the small size had wrinkled seed surface. All the seed size were identified the round seed. The seed size has a significant effect to seed vigor, nevertheless did not significant to seed viability. Large seed size showed the higher vigor than other sizes. Seed size didn’t significant to seed storability vigor that was showed by germination of seed after the accelerated aging. The large seed size use that has high vigor is very required to unfavourable enviromentals production.
Keyword: AAT, diameter benih, intergritas membran, viabilitas, vigor, accelerated aging text, membrane integrity, seed diameter, viability

Judul: Pengaruh Pengusangan Cepat dan Penyimpanan Alami Terhadap Viabilitas Benih Beberapa Varietas Kacang Tanah (Arachis hypogaea L.).
Abstrak: The research aimed to determine the influence of rapid aging and natural storage of the viability on several varieties of peanuts seed that has different size and anthocyanin content. The research was conducted in February-May 2012 in Science and Seed Technology Laboratory, and Laboratory of Molecular Marker and UV-VIS spectrophotometer, Department of Agronomy and Horticulture, IPB. Bogor. The peanut seed that used were Kelinci, Kancil, Bison, and Tuban. The research include two experiments. The first experiment was the influence of rapid aging viability several varieties of peanut seeds. The second experiment was the influence of natural storage viability on several varieties of peanut seeds in. The research used completely randomized design (CRD) one factor with four treatment of rapid aging in 0, 24, 48, and 72 hours and natural storage in 0, 1, 2, and 3 months. The results showed that the varieties of Kelinci are small and low anthocyanin content not resistant to rapid aging and natural storage show by seed vigor. The varieties of Kancil are large and low anthocyanin content not resistant to rapid aging, but resistant to natural storage show by seed viability and vigor.Varieties of Bison high content of anthocyanin resistant to rapid aging and natural storage. Varieties of Tuban showed dormancy phenomen shown by viability and seed vigor increased.
Keyword: 

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