Judul: Keragaan galur-galur padi potensial aromatik IPB pada dataran tinggi
Abstrak: IPB researcher had breed potential promising aromatic rice lines. It has result by crossing between Sintanur and Fatmawati variety with local aromatic rice from Toraja, South Sulawesi, namely Pinjan, Lambau, and Pulu Mandoti. The lines had not appearance the aroma character in lowland experiment site that. The lines probably have attached gen that could appearance aroma in highland. In this research, experiment site on Cianjur highland at Sukaresmi Distric. The objective of this research were to test aroma appearance of IPB potential aromatic promising lines in highland. The hypothesis of this research were aroma appearance of IPB potential aromatic promising lines were expressed on highland.. Hopeful, the lines could appearance the aroma character. This research was done from January until June 2011, used 21 IPB potential aromatic lines with 3 check variety, there are Ciherang, Sintanur, and Sarinah. Aroma tested were used 2 method, there are test tube and coocked method. From aroma tested, all of the lines have appearanced aroma. Line IPB 149-F-2-1-1, IPB 117-F-28-4-1, and IPB 117-F-20-1-1 have the highest score for aroma by coocked method. Line IPB 140-F-6-1-1 have the highest score for aroma by test tube method.
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Judul: Identifikasi Karakter Aromatik secara Molekuler dan Organoleptik pada Galur Padi BC5F2 Hasil Persilangan Ciherang dan Pandanwangi
Abstrak: Aroma in rice has become an important consideration in increasing consumer appetite. Genetic mapping of molecular marker related to the responsible for fragrance in rice was previouslyreported and it was closely linked with microsatellite marker RM223. This study aimed to identify the aromatic character of the gene badh2 in BC5F2 populations derived from crosses between Ciherang and Pandanwangi, both with molecular marker RM223 and organoleptic analysis using KOH 1.7% solution. Based on the foreground selection analysis of the total 272 individual tested lines, 105 lines were found to be homozygous for Pandanwangi (160 bp), 46 lines were homozygous for Ciherang (140 bp) and 121 lines were heterozygous (140 bp and 160 bp). Evaluation of aroma with KOH in selected BC5F2 lines showed variation in quality value, such as slight, moderate, and strong aroma. Thus, through these two selection methods, we were able to select several BC5F2 lines carrying aromatic trait introgressed from Pandanwangi at target region.
Keyword: aroma, badh2, Ciherang, Pandanwangi, RM223

Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular