Judul: Perlakuan Coating dengan Menggunakan Isolat Methylobacterium spp dan Tepung Curcuma untuk Meningkatkan Daya Simpan Benih Padi Hibrida
Abstrak: This research conducted at Centre for Soil Research, East West Corporation in Purwakarta and Laboratory of Seed Science of Department Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University. This experiment arranged in Nested plot design with six times period of storage as main a main plot and the subplot is formulation of seed coating (uncoated seed, TDJ-7, TPB3, TD-TM1 and Curcuma flour). The result showed that coated and uncoated seed still had high viability after storage 15 weeks for 3 varieties of hybrid rice seeds (DG-1, SL-8 and INTNANI-2). Methylobacterium spp strain TD-TPB3 and TD-TM1 showed the best coated for hybrid rice seeds.
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Judul: Pelapisan Benih dengan Bacillus subtilis AB89 dan Tokoferol untuk Mempertahankan Viabilitas Benih Padi Hibrida Selama Penyimpanan
Abstrak: This research aims to evaluate the effect of seed coating by Bacillus subtilis AB89 and Tocopherol on viability of hybrid rice seeds during storage. Experimental design is used a Nested Design randomized complete. The main plot is period of seed storage consisting of six standards are: P0 = 0 weeks, P1 = 3 weeks, 6 weeks = P2, P3 = 9 weeks, 12 weeks = P4, and P5 = 15 weeks with seed coating as a subplot consisting of three levels, namely: C0 = control (without coating), C1 = polymer + isolates Bacillus subtilis AB89, C2 = polymer tocopherol + 500 ppm . Seeds used in this research is hybrid rice varieties DG-1, SL-8, and Intani2. Seed moisture content fluctuated during storage, but the seed coating treatment showed a lower water content values than the control. The results showed that treatment of seed coating and without coating capable maintaining viability of hybrid rice seed varieties both DG-1, SL-8 and Intani 2 until 15 weeks period of seed storage . Coating by Bacillus subtilis AB89 on DG-1 varieties increased the speed of grown, cumulative germination percentage and dry weight normal seedling until 15 weeks period of seed storage. Coating by tocopherol 500 ppm on SL-8 varieties has the highest value of the maximum growth potential and increased the highest maximum growth potential on Intani 2 varieties.
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Judul: Karakteristik Anatomi Skelet Kepala Buaya senyulong (Tomistoma schlegelii).
Abstrak: Buaya sepit atau senyulong (Tomistoma schlegelii) merupakan jenis buaya asli Indonesia yang berhabitat di sungai-sungai Sumatera, Kalimantan, dan juga pedalaman Sulawesi. Salah satu ciri khas buaya senyulong adalah bentuk moncong yang runcing dan sempit, namun hingga saat ini informasi mengenai struktur skelet kepala buaya senyulong sangat terbatas. Penelitian ini bertujuan untuk mempelajari karakteristik anatomi skelet kepala buaya senyulong yang dikatikan dengan fungsi dan perilakunya. Penelitian dilakukan secara eksploratif dengan melakukan pengamatan, pencatatan, dan pengambilan gambar dari skelet kepala buaya senyulong. Skelet kepala berukuran panjang 70 cm, lebar 29 cm, dan tingggi 17 cm dengan permukaan kasar pada os nasale, os frontale, os maxilla, os mandibula, os lacrimale, os jugale. Jumlah gigi pada buaya ini sebanyak 78 buah, terdiri dari 4 buah gigi premaxila, 16 buah gigi maxila, dan 19 buah gigi mandibula. Pada regio orbitalis ditemukan dua pasang fenestrae temporales yang berkembang baik. Fenestra supratemporale merupakan lubang oval yang membentang di sepanjang os parietale. Fenestra infratemporale berbentuk segitiga dan dibatasi oleh os squamosum, os postorbitale, os jugulare, dan os quadratum. Os mandibula hewan ini mempunyai symphysis mandibularis yang panjang yaitu garis yang melintang di corpus mandibulae. Secara fungsional ukuran symphysis mandibularis berkaitan dengan adaptasi hewan terhadap diet makan.
Keyword: kepala, moncong, Tomistoma schlegelii