Judul: Penerapan Analisis Model Campuran pada Rancangan Petak Terbagi RAK dalam Percobaan Pengaruh Varietas dan Dosis Pupuk Tehadap Produktivitas Padi
Abstrak: Factor’s tests by experiments must had been done to determine factor’s effect to the response variable. Mixed model is analysis model that had been able to used if there were fixed effects and random effects in an experimental design. An example of some experimental designs that have fixed effects and random effects is a split plot design. Analysis by mixed models has been applied for varieties influence experiment and urea fertilizer on rice yield. The study used a split plot design with environmental design selected was a randomized block design (RBD). The data used is the rice data of Biogen in 2012 which includes varieties (sub plot) as a random factor with 23 species, dose of urea (the main plot) as a fixed factor with four level and repeated in three groups. The response measured is the result of rice or grain (kg / ha). The results obtained in this study using a mixed model for the variety and interactions with urea fertilizer varieties which are random, the diversity of results obtained 33.3% of the total diversity. Also, fixed effects’s test show that the dose of urea fertilizer and groups are significant on α = 5%. Interaction between accession B.11283-6C-PN-5-MR-SL1-2-1-1 with urea fertilizer 300kg/ha gave the largest rice production.
Keyword: Bogor Agricultural University (IPB), split plot design, mixed model

Judul: Analisis Produktivitas Beberapa Tipe Padi
Abstrak: This research was carried out in November 2012 until April 2013. The objective of this research was to study the productivity of some types of rice and some factors that influence it. Four varieties of rice were used. The varieties are Mentik Wangi as a local variety, IPB 3S as a new plant type of rice, Inpari 13 as a new variety of rice and Hipa 8 as a hybrid type. A Randomized Complete Blocked Design with three replications using for this experiment. This research was conducted at Muara Experiment station. The result showed that Inpari 13 had a high productivity, 6 ton ha-1. The variety may use the assimilates in stems and alocate the dry matter during grain filling effectively. In addition, the resistance of Inpari 13 against bacterial leaf blight attack is one of the factors that cause the high productivity
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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