Judul: Dimensi dan Taper Bambu di Beberapa Lapak di Kabupaten Bogor
Abstrak: Indonesia is one largest manufacturer and exporter of bamboo nation in Asia among China and Vietnam. Development of Bogor regency bamboo production experienced up and down each year in spite of the extensive area of Bogor district bamboo plants get experiencing depreciation each year. The purposes of this research are: recording the kinds of bamboo being sold in Bogor regency, measuring the dimensions of bamboo being sold in Bogor regency which includes: the diameter, length, thickness, distance between the books and the tapers bamboo, determining correlation between the outer tapers and inner ones of bamboo being sold in Bogor regency. Bamboo is often on sale is the bamboo tali because bamboo is fairly cheap and much more useable in the community, while the bamboo andong and bamboo hitam is available but in limited quantities. Bamboo dimensions on the sale are dominated by small size bamboo tali (5-6 cm) and medium (7-9 cm) to meet the needs of the market Bogor regency tapers bamboo being sold in Bogor regency have tapers in the smallest bamboo ropes while the largest bamboo andong and tapers out the smallest black bamboo while the largest black bamboo. Most correlation between outer tapers and inner ones occurs on andong. However, bamboo Hitam and bamboo Tali do not have a most correlation.
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Judul: Pertumbuhan dan penyebaran komunitas bambu pada lanskap bantaran sungai di Bogor, Jawa Barat
Abstrak: Penelitian dilakukan di Kabupaten dan Kotamadya Bogor yang terdiri dari lima lokasi, yaitu (1) Arboretum Bambu IPB, (2) Laboratorium Silvikultur Fahutan IPB, (3) Kebun talun bambu di RT 01/01 Desa Babakan Darmaga Bogor, (4) Kebun talun bambu di RT 03/01 Desa Babakan Darmaga Bogor, dan (5) Kebun Raya Bogor. Penelitian menggunakan metode survei. Bambu yang diteliti terdiri dari tiga jenis bambu yaitu bambu tali (Gigantochloa apus), bambu kuning (Bambusa vulgaris), dan bambu garis (Gigantochloa pseudoarundinacea). Pengamatan dilakukan pada masing-masing jenis bambu terdiri dari lima contoh rumpun. Penelitian ini terdiri dari dua pengamatan, yaitu: (1) Pengamatan pertumbuhan bambu, yang terdiri atas variabel: (a) tinggi rumpun, (b) luas kanopi rumpun, dan (c) luas basal. (2) Pemetaan pola persebaran buluh dalam rumpun, yang terdiri atas variabel: (a) buluh hidup, (b) buluh mati, (c) rebung, (d) buluh dipanen, dan (f) luas basal rumpun. ...
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Judul: Pengujian Virus Newcastle Disease Gen VII Isolat Lapang Sebagai Virus Standar Pada Uji Tantang Vaksin
Abstrak: This study was conducted to determine the standard of Newcastle disease virus Gene VII field isolate as a virus challenge to vaccine test. A virus suspension that has previously been tested by HA test then titrated with EID50 using 30 Specific Pathogen Free (SPF) of 10 day old chicken embryonated eggs. In addition, chicken lethal dose50 (CLD50) test were used to determine the virus titer that could cause 50% death of the chicken population. The CLD50 test was used 25 day-old-chickens (DOC) divided into 5 groups. The virus was diluted from 10-1 to 10-8. The 104 to 10-8 dilution of NDV was infected to every group of chicken via eyedrop and intranasal with 0.1 ml/chicken dosage. Haemagglutination test showed that the allantoic fluid were contain high titers of NDV is 512 HAU. The infective NDV that had been titrated by EID50 test showed the virus titers is 109 EID50/0.1 ml or 1010 EID50/ml and the virus titers of CLD50 test e.i 106.48 CLD50/0.1 ml or 107.48 CLD50/ml. These results can be concluded that the NDV Gene VII field isolates were most appropriate to be used as a standard virus to vaccine test
Keyword: Newcastle Disease Virus Gene VII, HA tes, EID50 test, CLD50 test