Judul: Peningkatan efisiensi penggunaan air untuk pertanian lahan kerin berkelanjutan melalui berbagai teknik irigasi pada typic kanhapludult Lampung, Improvement water use efficiency for sustainable upland agriculture through various irrigation techniques on typic Kanhapludult Lampung
Abstrak: Kekurangan air merupakan faktor utama penurunan produksi dan kegagalan panen di lahan kering. Irigasi dengan air tanah atau air permukaan pada musim kemarau di lahan kering Lampung dpat meningkatkan produksi palawija dan hortikultura, indeks pertanamanan dari 200 menjadi 300 % serta pendapatan petani, namun masih terjadi pemborosan air irigasi sebanyak 10,5 mm/hari., Innadequate irrigation water is the main factor causing low productivity of the upland agriculture in Indonesia. Water supplement through various methods of irrigation practices gave significant increase to almost all of productivity. On the other hand, the water use efficiency (WUE) under the conventional floading system, is generally low.
Keyword: Water Use Efficiency, Management Allowable Depletion (MAD), Irrigation Techniques

Judul: Efisiensi penggunaan air tanaman padi dengan irigasi kontinyu dan berselang di Kecamatan Mijen, Semarang
Abstrak: Climate anomalies and climate change are obstacles in achieving a sustainable rice production. The use of appropriate and locally accepted technology and affective water use are needed at farmers level. This study was conducted to analyze water use efficiency of several varieties of rice namely Inpari 1, Umbul, Situ Bagendit, and Galur Harapan at two different spacing system (Jajar legowo and Tegel) with continuous and intermittent irrigation system. Water use efficiency (WUE) of plants were calculated by dividing dry biomass production with water used (ETc) during grow period. Water use was using reference evapotranspiration (ET0) corrected by plant coefficient (Kc). ET0 was calculated using FAO Penman-Monteith method. The result showed that WUE of plants grown with intermittent irrigation was higher than plants grown with continuous irrigation, both by production and total (9.93% and 10% respectively). Water use efficiency can be done with increased potensial crop yields or to reduce water of irrigation without reducing yields.
Keyword: 

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