Judul: Penyimpanan Bibit Bawang Merah (Allium ascalonicum L.) pada Suhu Rendah dan Perlakuan Kadar Air Awal Untuk Mempertahankan Mutu
Abstrak: Bad post-harvest handling cause shallot damage and sprouting before the right time. Therefore the study of interaction initial moisture content and low temperature treatment is needed. The purpose of this research are to testing the effect of moisture content and low temperature of the damage and sprouting, and to knowing optimum moisture content and temperature to reduce the damage and sprouting. Methods of this research using some levels moisture content, there are ±85%, ±83%, dan ±81%, and then shallot seed stored at temperature 5°C and room temperature during 8 weeks. The result showed that interaction of moisture content and temperature had not significant effect on the sprouting, but significant effect on the damage. Optimum moisture content in the range of 80-85% can hold percentage of sprouting, but it cannot hold damage percentage. Percentage of damage is 19.8%. Temperature 5°C is the most optimal to reduce damage percentage, but the highest percentage of sprouting occurred at temperature 5°C. Percentage of sprouting is 4.8%.
Keyword: Bogor Agricultural University (IPB), shallot seed., moisture content, damage

Judul: Pengaruh Suhu dan Kemasan Terhadap Mutu Bibit Bawang Merah (Allium ascalonicum L.)
Abstrak: In storing of shallot seedbulbs, the damage because porous, disease, rooting and sprouting are often occur. The objective of this study was to determine the optimum temperature and packaging in order to maintain the qualities of shallot seedbulbs during the storing time. In this study, the packaging used is plastic net and polyethylene, stored at 10°C, 15°C, and room temperature. Parameters measured were weight loss, moisture content, hardness, damage, and sprouting. Room temperature could withstand the increasing of weight lost from week 2 to week 8 and temperature treatment could not withstand the decreasing of moisture content and hardness during the storing time. Storing at room temperature could withstand sprouting and damage of seedbulbs during the storing time. Plastic net packaging could withstand the increasing of weight loss at week 1 and week 2. Packaging treatment could not withstand the decreasing moisture content and hardness during the storing time. Polyethylene packaging could reduce damage during the storing time. Plastic net and polyethylene packaging could reduce sprouting during the storing time. Storing at room temperature with polyethylene packaging could reduce damage by 11.97% and sprouting by 0.004% during the storing time
Keyword: quality., packaging, temperature, shallot seedbulbs

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