Judul: Phenology of Agronomic Characters of Several  Mung Bean (Vigna radiata L. Wilczek) Lines at Different Harvest Periods
Abstrak: Kacang hijau menjadi salah satu sumber protein yang banyak dikonsumsi oleh masyarakat Indonesia. Panen yang serempak sangat penting dalam budidaya kacang hijau. Penelitian bertujuan memperoleh informasi mengenai fenologi karakter agronomi galur-galur kacang hijau hasil pemuliaan IPB pada periode panen yang berbeda dan memperoleh genotipe hasil tinggi pada panen serempak. Penelitian dilaksanakan pada bulan November 2022 hingga April 2023 di Kebun Percobaan Leuwikopo IPB. Penelitian menggunakan rancangan kelompok lengkap teracak pola tersarang dengan dua faktor, faktor pertama galur kacang hijau dan faktor kedua periode panen. Masing-masing faktor terdiri atas tiga ulangan sehingga terdapat 72 satuan percobaan. Hasil penelitian menunjukkan bahwa perlakuan panen yang berbeda tidak berpengaruh nyata terhadap karakter umur berbunga, umur polong hitam pertama, tinggi tanaman saat berbunga, tinggi tanaman saat panen terakhir, jumlah cabang total, jumlah cabang produktif, dan panjang tandan bunga, namun berpengaruh sangat nyata terhadap karakter jumlah polong per tanaman, bobot polong per tanaman, dan bobot biji per tanaman. Genotipe F7-VR10/V1-29 memiliki umur berbunga, umur polong hitam pertama, umur panen, jumlah cabang produktif, jumlah polong per tanaman, bobot polong per tanaman, dan bobot biji per tanaman yang setara atau lebih baik dari pembanding Vima 1. Genotipe yang memiliki hasil tinggi pada periode panen serempak yaitu F7-VR10/V1-29., Mung bean is a source of protein that is widely consumed by Indonesian. Simultaneous harvest is very important in mung bean production. The aims of the study were to obtain information on the phenology of agronomic characters of IPB mung bean lines at different harvesting periods and to select high-yielding genotypes. The research was carried out from November 2022 to April 2023 at the Leuwikopo Experimental Field, IPB University. The study used a randomized complete block design with nested pattern with two factors. The first factor was the mung bean lines and the second factor was the harvest period. Each factor consisted of three replications so that there were 72 experimental units. The results showed that different harvest treatments had no significant effect on the characters of day to flowering, day to the first black pods, plant height at flowering, plant height at last harvest, total number of branches, number of productive branches, and length of flower bunches, but had a very significant effect on the character of the number of pods per plant, pod weight per plant, and seed weight per plant. Genotype F7-VR10/V1-29 had day to flowering, day to first black pod, day to harvest, number of productive branches, number of pods per plant, pod weight per plant, and seed weight per plant which was equal to or better than Vima 1. The highest yieldiy genotype with simultaneous harvest was F7-VR10/V1-29.
Keyword: genotipe, hasil tinggi, panen serempak, protein, rancangan tersarang

Judul: Yield Test of 22 Mung Bean (Vigna radiata L.) Strains  Results of IPB Breeding
Abstrak: Kacang hijau merupakan tanaman legum yang telah dikenal secara luas di Indonesia karena kandungan proteinnya tinggi dan mudah dicerna, kadar lemaknya yang rendah, serta memiliki berbagai manfaat bagi kehidupan. Penelitian ini bertujuan untuk mendapatkan informasi tentang daya hasil 22 galur kacang hijau IPB. Penelitian ini dilaksanakan pada bulan November 2022 hingga Maret 2023 di Kebun Percobaan Balai Penelitian Bioteknologi dan Sumberdaya Genetik Pertanian, Kota Bogor. Penelitian ini terdiri dari satu faktor yaitu 22 genotipe kacang hijau IPB dan dua varietas pembanding. Rancangan percobaan yang digunakan yaitu rancangan kelompok lengkap teracak dengan 3 ulangan. Hasil penelitian menunjukkan adanya perbedaan yang nyata antara genotipe yang diuji. Genotipe yang memiliki produktivitas yang lebih tinggi dibandingkan dengan genotipe pembanding secara deskriptif diantaranya F7-Lom2/129-2, F7- Lom2/129-28, F7-VR10/V1-6, F7-VR10/V1-10, F7-VR10/V1-29, F6- VR422H/129-1, F5-Lom2/129-125, F6-VR480B-213, dan F6-Lom2/V2-6., Mung bean is a legume crop that is widely known in Indonesia because of its high protein content and ease of digestion, low-fat content, and various benefits for life. This study aims to obtain information about the yield of 22 IPB mung bean lines. This research was conducted from November 2022 to March 2023 at the Experimental Garden of the Agricultural Genetic Resources and Biotechnology Research Institute, Bogor City. This study consisted of one factor, namely 22 IPB mung bean genotypes, and two control varieties. The experimental design used was a randomized complete block design with 3 replications. The results showed that there were significant differences between the genotypes tested. The genotypes that had higher productivity compared to the comparative varieties descriptively included F7-Lom2/129-2, F7-Lom2/129-28, F7-VR10/V1-6, F7-VR10/ V1-10, F7-VR10/V1-29, F6-VR422H/129-1, F5-Lom2/129-125, F6- VR480B-213, and F6-Lom2/V2-6.
Keyword: genetic, high-yielding varieties, legume, productivity, protein

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