Judul: Analisis keragaman dan stabilitas genetik temulawak (Curcuma xanthorriza Roxb.) Indonesia
Abstrak: Study on The Identification of Parasitoids and Predators of White Fly on Mulberry Plant was conducted at Bogor, Sukabumi and Tasikmalaya as well as Pati and Candiroto on sericulture developing centers of West Java and Central Java, respectively. The main objectives of the study were to confirm the species of white fly and also to confirm whether there is any parasitoid as well as predator attacking the pest in all the study sites. To achieve the targeted output of the study the following methods were conducted. The collected whiteflies from all study sites were send to entomological laboratory of Bogor Agriculture University, while the collected parasitoids and predator were send to National Entomological Museum at Bogor. To proof an insect to be parasitoid of the whitefly, in captive method was practiced. While to proof an insect to be predator of the fly, the bait method was practiced. The result of the study showed that white attacking mulberry plant at study sites is Trialeurodes vaporarium Martin. There are four species parasitoids namely Ceraphronid, Scelionid, Eucoilid and Eulophid and four species of predacious Coccinelid namely Serangium spp and Micraspis sp.
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Judul: Identifikasi Parasitoid dan Predator Kutu Kebul pada Tanaman Murbei (Morus sp)
Abstrak: Study on The Identification of Parasitoids and Predators of White Fly on Mulberry Plant was conducted at Bogor, Sukabumi and Tasikmalaya as well as Pati and Candiroto on sericulture developing centers of West Java and Central Java, respectively. The main objectives of the study were to confirm the species of white fly and also to confirm whether there is any parasitoid as well as predator attacking the pest in all the study sites. To achieve the targeted output of the study the following methods were conducted. The collected whiteflies from all study sites were send to entomological laboratory of Bogor Agriculture University, while the collected parasitoids and predator were send to National Entomological Museum at Bogor. To proof an insect to be parasitoid of the whitefly, in captive method was practiced. While to proof an insect to be predator of the fly, the bait method was practiced. The result of the study showed that white attacking mulberry plant at study sites is Trialeurodes vaporarium Martin. There are four species parasitoids namely Ceraphronid, Scelionid, Eucoilid and Eulophid and four species of predacious Coccinelid namely Serangium spp and Micraspis sp.
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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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