Judul: Keragaman Mangga Cengkir di Kabupaten Indramayu
Abstrak: Cengkir (Mangifera indica L.) is known as a mango variety from Indramayu Regency, West Java. So that are often called as indramayu or dermayu mango. Mango trees usually planted from seeds or graftings. The source of seeds and grafting could be come from different genotipe mango trees. So that the variability of cengkir mango trees in Indramayu need to be analyzed. The objective of this study was to analyze the diversity of cengkir mango in Indramayu based on morphological and anatomical characters. Five subdistrics (kecamatan) were chosen in Indramayu Regency, one mango plantation was chosen from each subdistrics and 2 – 3 sample trees were observed such as morphology characters of trees, leaves, and fruits. Paradermal and transversal sections of leaf anatomy for microscopical preparation was conducted in laboratory. Morphological, anatomical, and both characters were analyzed using the NTSYS program version 2.1. the dendrogram of similarity had showed cengkir mango trees in Indramayu had diversity with similarity value between 48 – 68 %.
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Judul: Marketing Analysis of Cengkir Mango (Mangifera indica l.) in  Temiyangsari Village, Kroya District, Indramayu Regency
Abstrak: Desa Temiyangsari merupakan salah satu desa di Kecamatan Kroya, Kabupaten Indramayu yang dikenal sebagai penghasil Mangga Cengkir. Selain fluktuasi harga pada panen raya, buah mangga yang mudah rusak ketika melalui saluran pemasaran juga diperhitungkan sehingga memengaruhi harga jual Mangga Cengkir. Semakin panjang saluran pemasaran, maka semakin banyak lembaga pemasaran yang terlibat sehingga semakin banyak lembaga yang menentukan harga. Marjin yang tinggi dapat menyebabkan penerimaan petani Mangga Cengkir rendah sedangkan posisi tawar Petani Mangga Cengkir lemah dalam menentukan harga di pasar. Penelitian ini bertujuan untuk (1) menganalisis saluran dan fungsi pemasaran usahatani Mangga Cengkir di Desa Temiyangsari, Kecamatan Kroya, Kabupaten Indramayu, (2) menganalisis struktur, perilaku, dan kinerja pasar Mangga Cengkir di Desa Temiyangsari, Kecamatan Kroya, Kabupaten Indramayu. Hasil penelitian menunjukkan bahwa: (1) terdapat empat lembaga pemasaran yang membentuk lima saluran pemasaran dengan berbagai fungsi pemasaran kecuali fungsi pengolahan, (2) Struktur pasar di setiap lembaga pemasaran adalah oligopsoni terkonsentrasi tinggi, kecuali di tingkat pedagang pengecer luar yang merupakan oligopoli terkonsentrasi tinggi terhadap lembaga pemasaran sebelumnya sehingga berimplikasi pada penentuan harga, keterikatan petani, dan sistem pembayaran. Oleh karena itu, sebagian besar petani menggunakan saluran pemasaran 2 dan 3 dengan marjin terbesar dan farmer’s share terkecil sehingga kinerja pasar belum efisien.
Keyword: kinerja pasar, marjin pemasaran, perilaku pasar, saluran pemasaran, struktur pasar

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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