Judul: Studi Kekerabatan dan Morfologi Padi Lokal Adan Hasil Mutasi Sinar Gamma
Abstrak: Adan rice is a variety of rice grown in the highlands of East Kalimantan with only once harvest every year. Mutation by gamma rays on this Adan rice make its age of ripening more early in order to increase its productivity. Analysis of molecular and morphological from Adan rice mutant has not been done before. That analysis needs to be conducted to compare the differences between wildtype of rice and mutant Adan rice. This research aimed at showed diversity or similarity of wildtype Adan rice and mutant Adan rice used microsatellite or SSR markers. The dendogram obtained from molecular analysis SSR showed that wildtype Adan rice and mutant Adan rice (BMA 1-9) are located in same large group with 58% similarity coefficient. Mutant rice is similar to the wildtype in the BMA 3 and BMA 9 groups. Mutations with gamma rays shortened on flowering and increased the number of productive tillers to 96%. Mutations of gamma rays also shortened the height of rice mutants until 20%, reduced the total number of tillers from mutant rice until 44%, and reduced the number of leaf yellowing mutant rice until 66%.
Keyword: similarity coefficient, microsatellite (SSR), Adan rice

Judul: Analisis Sidik Jari DNA Padi Beras Merah, Padi Aromatik, dan Padi Genjah
Abstrak: Rice is one of major crops comodities with a high fenotype diversity. It can be divided into 3 cluster, red rice, aromatic rice, and genjah rice. The differences between those cluster, can be seen from fenotype and genotype of each variety using molecular markers based on gene. The objective of this research is to identify the specific character of red rice, aromatic rice, and genjah rice and the genetic diversity using Simple Sequence Repeat (SSR) molecular markers. Material genetic from rice was isolated using isolation DNA standard method, break the cell wall, expel parts of the cell, and precipitate the DNA parts (Sambrook method), and then the isolate was amplified using polymerase chain reaction (PCR) amplification procedure. Subsequently, analysis by association, evolution, and linkage (TASSEL) software was used for data processing. Genetic variation is based on the result of DNA amplification using PCR process from rice variety used. The results of this research showed the variation of DNA bands from 100 bp until 350 bp of red rice, aromatic rice, and genjah rice varies, also there is association between fenotype and genotype of variety in cluster. TASSEL was used to obtain description of variety and produced a dendrogram that show us the variety type of those variety, also which variety and markers has a significant result in amplification procedure.
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Judul: Closed Knight’s Tour pada Papan Catur Berbentuk Persegi Panjang dengan Ukuran Maksimal 8 × 8
Abstrak: Closed Knight’s Tour merupakan langkah kuda yang mengunjungi setiap kotak pada papan catur tepat satu kali dengan langkah kuda berawal dan berakhir pada kotak yang sama. Graf yang terbentuk dari closed knight’s tour dinotasikan sebagai graf G(m,n), dengan m adalah banyaknya baris dan n adalah banyaknya kolom. Graf tersebut memuat Hamiltonian cycle. Sebuah graf terhubung G adalah graf bipartite jika dan hanya jika graf tersebut tidak memiliki cycle dengan panjang ganjil. Papan catur yang memenuhi syarat cukup untuk memiliki closed knight’s tour adalah papan catur berukuran 5 × 6, 5 × 8, 6 × 6, 6 × 7, 6 × 8, 7 × 8, dan 8 × 8.
Keyword: bipartite, closed knight’s tour, hamiltonian cycle, knight’s tour, teori graf