Judul: Identifikasi dan Karakterisasi Gen Toleran Genangan Populasi Padi BC4F1 Ciherang-Sub1
Abstrak: Submergence stress is one of the inhibitor factor at rice productivity. Therefore, in order to improve food security, the rice of submergence-tolerant need to be developed. Introduction of gene related to submergence-tolerant (Sub1) was done by site-directed crossing between Ciherang rice as host with rice IR64-Sub1 and Swarna-Sub1 as Sub1 donor. The aim of this study was to identify and characterize BC4F1 Ciherang-Sub1 that resulted from backcross between BC3F1 Ciherang-Sub1 and Ciherang. The existence of Sub1 gene was detected by using PCR analysis based on molecular marker that concerned Sub1 gene. Stages of research was started from planting of BC4F1 Ciherang-Sub1 seed, testing of submergence tolerance, isolation of rice DNA, measuring of concentration and purity of rice DNA, and PCR analysis with AEX1 and RM219 markers. The test results of the submergence showed that 15 plants of BC4F1 Ciherang/Swarna-Sub1 and 21 BC4F1 Ciherang/IR64-Sub1. PCR results with markers AEX1R and AEX1F showed that the DNA band sized 231 bp, while the results of PCR with the combined markers AEX1R and RM219F can distinguish heterozygote between Ciherang rice, Swarna-Sub1 and IR64-Sub1.
Keyword: Padi BC4F1, padi IR64-Sub1

Judul: Introduction Gene of Submergence-Tolerant (Sub1) on Ciherang Rice Varieties.
Abstrak: Upaya untuk meningkatkan produksi padi terus dilakukan seiring dengan bertambahnya penduduk dan meningkatnya kebutuhan beras. Perubahan iklim yang tidak menentu menuntut perlunya pengembangan padi yang toleran terhadap cekaman abiotik, seperti kekeringan, salinitas tinggi, maupun genangan. Hasil panen rendah dan resiko kegagalan tanam akibat banjir umum ditemui pada areal rawa pasang surut, rawa lebak, dan tepian sungai. Salah satu solusi yang berkelanjutan dan permanen adalah mengembangkan varietas dengan hasil tinggi yang toleran terhadap rendaman. Penelitian ini mengembangkan padi Ciherang toleran genangan yang dilakukan secara spesifik dengan metode persilangan terarah (site-directed crossing) untuk menghindari produk transgenik. Penelitian ini bertujuan memperoleh tanaman BC3F1 Ciherang-Sub1 hasil persilangan balik BC2F1 Ciherang-Sub1 dan Ciherang serta menyeleksi tanaman BC3F1 yang membawa gen Sub1 dengan menggunakan PCR. Hasil uji genangan diperoleh 13 tanaman BC3F1 yaitu 6 tanaman BC3F1 Ciherang/Swarna-Sub1 dan 7 tanaman BC3F1 Ciherang/IR64-Sub1. Hasil PCR dengan marka AEX1F dan AEX1R menunjukkan pita DNA untuk gen Sub1A yang berukuran 231 bp. Sedangkan hasil PCR dengan marka gabungan RM219F dan AEX1R dapat membedakan sifat heterozigot antara padi host Ciherang, donor Swarna-Sub1 dan IR64-Sub1, serta progeni BC3F1 Ciherang-Sub1 dengan tambahan pita yang menunjukkan penyisipan Sub1 dari donor ke dalam host.
Keyword: 

Judul: Penentuan Nilai Aset Aktuaria pada Pendanaan Pensiun dengan Metode Pemulusan Eksponensial dan Aritmatika
Abstrak: Calculating the precise and stable contribution to a pension is a necessary in planning a pension. One way to reduce volatility this contribution is to conduct an assessment of the funding of the pension plan using the average value of the market value of assets in the short term. This value of the assets is called the actuarial value of assets. There are three methods commonly used in calculating the actuarial value of assets; Average of Market, Deferred Recognition and Write-Up. This paper discusses the pension funding valuation and it shows that all three methods are equivalent on exponential and arithmetic smoothing with the same variance that is equal to 0.00064 for exponential smoothing and 0.00036 for arithmetic smoothing.
Keyword: actuarial valuation, asset, loss, smoothing