Judul: Perencanaan Sistim Irigasi Curah Berdasarkan Kapasitas Alat dan Kebutuhan Tambahan Air di Kebun Bangelan PT Perkebunaan XXIII
Abstrak: Tujuan perencanaan ini adalah untuk mendapatkan suatu kapasitas sistim irigasi curah yang mempunyai efisiensi pemakaian air relatif tinggi dengan tolok ukur keseragaman pemakaian air, sifat fisik tanah dan kondisi iklim setempat serta menentukan kebutuhan tambahan air untuk setiap daerah irigasi. Pelaksanaan irigasi curah dilakukan pada periode defisit air yaitu sebagai tambahan air aldbat suplai air dari curah hu jan tidak mencukupi bagi kebutuhan air tanaman (crop water requirement). Berdasarkan evapotranspirasi tanaman puncak dan curah hujan efektif bulanan, periode bulan Juni sampai Oktober terjadi kekurangan suplai air hujan. Pada bulan Juni 70.66 mm, Juli 95.73 Rata-rata kekurangan air mm, Agustus 106.79 mm, September 75.80 mm dan Oktober 28.17 mm.
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Judul: Analisis Kebutuhan Air dan Kelebihan Air Hasil Konsolidasi di Balai Besar Penelitian Tanaman Padi Sukamandi.
Abstrak: Water balance is the balance of the input and output of water somewhere at a certain period, so it can be to determine the amount of the excess or shortage of water. This study aimed to analyze the flow of water and the excess water needs that occur at BBPTP. The procedure consisted of field studies, literature review and data analysis. Based on the analysis, the direction of water flow in the area around the research flowing to the south where there is a Cijengkol river downstream water flow. Based on the analysis of the water needs of the consolidation that has been done can be concluded highest evapotranspiration values occurred in October that is 7.13 mm/day. The highest value of water demand in October is 2.10 lt/sec/ha. The maximum irrigation discharge occurs in the irrigation channel number 7 is 28.01 lt/sec with 13.34 ha area. Based on the analysis of rainfall can be summed value maximum daily rainfall for the area of research at the Center for Rice Research amounted to 76.25 mm with a return period of 2 years and Gumbel distribution. The maximum effluent discharge occurs in the drainage channel number 88 is 117.30 lt / sec with 14.15 ha area.
Keyword: discharge of irigation, effluent discharge, evapotranspiration, rainfall

Judul: Mitochondrial DNA Gene Organization and Phylogenetic Relationship of Naja siamensis
Abstrak: Naja siamensis is one of Asiatic cobra in the Family of Elapidae, known as a cryptic snake. It has many morphological variations that lead to misidentification. Misidentification can cause the wrong concept in developing antivenom types due to high snakebite cases occur in Thailand. Thus, an accurate species identification using a molecular approach is crucially required. Mitochondrial DNA has been used widely in snake molecular studies. These studies were aimed to determine the arrangement of the N. siamensis partial mitochondrial genes using reptile-oriented primers and to reveal the phylogenetic relationship among other species of Asian cobra. DNA extraction was carried out based on the standard DNA salting-out protocol and was conducted by bioinformatics analysis using BLASTn and MEGA 6 software. Gene annotation was performed against N. kaouthia complete genome. A total of 3121 bp of N. siamensis mtDNA genes were sequenced consisting of partial of six regions: 16S rRNA, ND1, tRNA-Ile, CRII region, tRNA-Leu, tRNA-Gln, and COI genes. The mtDNA gene organization of N. siamensis was predicted to has a similar pattern with the common Elapidae mtDNA gene organization. This study showed that there is a monophyletic form in Naja genus and N. kaouthia is the closest species with N. siamensis based on partial 16S rRNA and ND1 gene.
Keyword: 16S rRNA, Elapidae, ND1, phylogenetic relationship