Judul: Preliminary Yield Trial of 84 Lowland Rice Lines (Oryza sativa L.) of F5 and F6 Generation.
Abstrak: Beras merupakan sumber karbohidrat utama masyarakat Indonesia. Peningkatan potensi produktivitas padi untuk mencukupi kebutuhan masyarakat terus dilakukan melalui perbaikan mutu dengan kegiatan pemuliaan tanaman dimana salah satu tahapannya yaitu uji daya hasil pendahuluan. Penelitian ini bertujuan menguji daya hasil dan keragaan galur harapan padi generasi F5 dan F6 untuk memperoleh galur yang memiliki daya hasil dan karakter agronomi lebih baik sebagai galur yang akan diuji pada tahapan berikutnya. Penelitian dilaksanakan pada bulan Februari hingga Juli 2023 di Kebun Percobaan Sawah Baru, Kecamatan Dramaga, Bogor dan Laboratorium Pemuliaan Tanaman. Percobaan menggunakan Rancangan Kelompok Lengkap Teracak faktor tunggal dengan 84 galur dan 2 varietas pembanding sebagai perlakuan. Hanya galur IPB200-F-42 dengan daya hasil nyata lebih tinggi daripada Inpari 32 (4,58 ton ha-1) dengan produktivitas sebesar 7,16 ton ha-1, namun tidak berbeda nyata dengan Ciherang (5,21 ton ha-1) berdasarkan analisis statistik. Meskipun demikian, terdapat galur yang cenderung memiliki produktivitas lebih tinggi daripada varietas pembanding berdasarkan nilai rataan serta memiliki karakter agronomi sesuai dengan kriteria PTB. Galur-galur tersebut yaitu IPB200-F-2, IPB200-F-14, IPB200-F-15, IPB200-F-17, IPB204-E-6, IPB200-F-21, IPB200-F-22, IPB200-F-25, IPB204-E-10, IPB201-F-16, IPB200-F-43, IPB200-F-44, IPB187-F-40-1-1., Rice is the main source of carbohydrates for Indonesian people. Increasing the potential for rice productivity to meet community needs continues to be carried out through quality improvement through plant breeding activities, where one of the stages is preliminary yield testing. This study aims to test the yield and performance of the expected lines of F5 and F6 generations of rice in order to obtain lines that have better yield and agronomic characteristics as lines to be tested in the next stage. The research was conducted from February to July 2023 at the Sawah Baru Experimental Garden, Dramaga District, Bogor, and the Plant Breeding Laboratory. The experiment used a single factor randomized block design with 84 lines and two control varieties as treatments. IPB200-F-42 is the only one line which had significantly higher yields than Inpari 32 (4.58 tons ha-1) with a productivity of 7.16 tons ha-1, but was not significantly different from Ciherang (5.21 tons ha-1) based on statistical analysis. Nonetheless, there are lines that tend to have higher productivity than the control varieties based on the average value and have agronomical characteristics according to the PTB criteria. These lines are IPB200-F-2, IPB200-F-14, IPB200-F-15, IPB200-F-17, IPB204-E-6, IPB200-F-21, IPB200-F-22, IPB200-F-25, IPB204-E-10, IPB201-F-16, IPB200-F-43, IPB200-F-44, IPB187-F-40-1-1.
Keyword: genotype, new plant type of rice, productivity, selection

Judul: Evaluation of 100 Lowland Rice Lines (Oryza sativa L.) in F3 Generation of IPB196 population
Abstrak: Lahan pertanian semakin menyempit dan jumlah penduduk semakin bertambah, sehingga perlu pemuliaan tanaman untuk mengatasi hal tersebut. Penelitian ini bertujuan menguji keragaman keragaan 100 galur padi generasi F3 populasi IPB196. Penelitian dilaksanakan di Kebun Percobaan Sawah Baru IPB, Desa Babakan, Dramaga, Bogor pada Februari sampai Agustus 2022. Penelitian ini menggunakan rancangan augmented design dengan menggunakan rancangan lingkungan rancangan kelompok lengkap teracak (RKLT). Digunakan dari 6 pembanding, yaitu dua variets (Ciherang, Inpari32) dan 4 galur padi tipe baru (PTB) ((IPB187-F-37-1-2 (S1), IPB187-F-65-1-2 (S3), IPB193-F-30-2-1 (S9), dan IPB187-F-40-1-1(T5)) dengan 5 ulangan, serta genotipe yang diuji berjumlah 100 galur generasi F3. Karakter panjang batang memiliki kisaran 59,76-88,91 cm dengan kisaran jumlah gabah total per malai 110,35-202,15 g, jumlah anakan antara 4-20 anakan, serta bobot gabah per rumpun berkisar 12,34-62,33 g. Keragaman semua karakter yang diamati termasuk kedalam keragaman sempit dan penampilan yang seragam, ditunjukkan dengan nilai koefisien keragaman genetik (KKG) dan koefisien keragaman fenotip (KKF) yang rendah. Hasil penelitian menunjukkan terdapat sebelas galur menghasilkan bobot gabah per rumpun antara (35,96-62,33 g, lebih tinggi) dari pembanding VUB (23,71 g dan 29,36 g) dan pembanding galur PTB (37,18–38,94 g)., Agricultural land decreases while the population is increasing, so plant breeding is needed to overcome this. This study aims to evaluate the variation performance of 100 F3 lowland rice of the IPB196 population and study their variation, as well as to select the best lines that have high yield potential. The research was carried out at the IPB196. Experimental Farm in Sawah Baru, Babakan Village, Dramaga, Bogor from February to August 2022. This study used an augmented design using a randomized complete group design (RKLT). Six checks are used for two varieties (Ciherang and Inpari32) and four lines of a new rice plant type (NPT) (IPB187-F-37-1-2 (S1), IPB187-F-65-1-2 (S3), and IPB193-F-30-2-1 (S9)), the total number of genotypes evaluated is 100 F3 generations with five replications. The stem length characters ranged from 59.76, to 88.91 cm, with total grain numbers per panicle ranging from 110.35, to 202.15 g, and tillers ranging from 4 to 20. The weight of grain per clump ranges from 12.34 to 62.33 g. The variation of all observed characters belongs to narrow variation and has a uniform appearance, as indicated by low genetic variation coefficient and phenotypic variation coefficient values. The results showed that there were eleven lines that had to produce higher grain weights per clump (from 35.96 to 62.33 g, higher). The VUB check (23.71 g and 29.36 g) and the NPT lines check (37.18 to 38.94 g).
Keyword: line, new plant type of rice, productivity

Judul: Pelabelan Super Vertex Magic
Abstrak: Super vertex magic labeling is labeling on graph with is a set of edges mapped into and is a set of vertices mapped into . It has a vertex magic labeling in which and represents the size and order of the graph respectively. This manuscript proves that paths, cyclics, and disjoint union of cyclics have a super vertex magic labeling. There are four theorems to be discussed. The first theorem proves that path is super vertex magic if and only if is odd and . The second theorem proves that cyclic is super vertex magic if and only if is odd. The third theorem proves that bijection function from an edge set onto of graph can be extended to a super vertex magic labeling if and only if the set amount of edge label that incidents with a vertex in the graph, consists of sequential integers as many as vertices in the graph. The fourth theorem proves that disjoint union of the cyclics consists of cyclics with each cyclic has vertices is super vertex magic if and only if and are odd.
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