Judul: Arsitektur Perakaran Tiga Jenis Meranti dan Hubungannya dengan Karakteristik Pertumbuhan
Abstrak: Root is one of the important plant organ for supporting growth and development. The root functions include plant anchoring, water & nutrition absorption, and their distribution. Three species of Meranti were used in the research, namely Shorea stenoptera, Shorea palembanica, and Shorea leprosula. The aims of this research were i) to study the differences of root architecure formation on three species at HPGW ex-situ conservation area, ii) to study the relation of root architecture and phenotype (growth) characteristics of three species, including to determine Index of Root Anchoring (IRA) and Index of Root Binding (IRB). Root architecture was studied through root growth patterns, root morphology, and root growth variables.The results showed that i) the root growth patterns on three species were similar. That were classified into Champagnat group model with monopodial typical growth and tended to form orthotrophic branching. The root morphology was also similar, and the variance of root characteristic variables was not significant between species. ii) Total of root length significantly influenced height of plant and trunk volume, and the depth root significantly influenced height of plant and the crown diameter. The IRA values of S. stenoptera dan S. palembanica were categorized into medium group. The IRB value were categorized into low group. The IRA value of S. leprosula was categorized into high group, while and the IRB value was categorized into low group.
Keyword: Shorea, index of root anchoring, index of root binding, root architecture

Judul: Growth and Wood Rigidity Assessment of Standing Tree Meranti (Shorea spp.) in the Gunung Walat Educational Forest, Sukabumi.
Abstrak: Meranti (Shorea spp.) adalah kelompok kayu yang bernilai ekonomi tinggi, dengan tingkat eksploitasi yang terus terjadi di hutan alam, sehingga diperlukan suatu tindakan konservasi. Hutan Pendidikan Gunung Walat (HPGW) telah melakukan upaya konservasi jenis Shorea spp. secara ex-situ, namun kegiatan evaluasi belum dilakukan secara berkala. Evaluasi pertumbuhan termasuk kesehatannya serta faktor-faktor yang terkait perlu dilakukan. Tujuan dari penelitian ini adalah untuk i) mendapatkan data pertumbuhan pohon, ii) mengetahui kesehatan tegakan, iii) menduga kandungan karbon organik, dan iv) menganalisa hubungan karakteristik kekakuan kayu berdiri berdasarkan metode non-destruktif dengan pertumbuhan. Hasil penelitian ini diharapkan dapat memberikan informasi dalam status pertumbuhan tanaman dan kekuatan kayu Shorea spp. yang berada di HPGW., Meranti (Shorea spp.) is known as important group of timber species in Indonesia that belongs to the Diptercarpaceae family. Due to its high commercial value, exploitation of meranti was very high leading to a significant reduction of natural population size as well as urgent call for conservation action outside its natural habitats. Therefore, a demonstration plot for ex situ conservation stand of five meranti species, namely Shorea palembanica, Shorea mecistopteryx, Shorea stenoptera, Shorea pinanga, and Shorea leprosula, was planned and established in 2004 at Gunung Walat Educational Forest (GWEF), Sukabumi. However, this conservation stand has not been yet thoroughly evaluated. Research through field assessment was carried out in the stand with objectives as follows: i) to determine tree growth, ii) to assess tree health condition, iii) to calculate the potential of carbon uptake and iv) to estimate the wood quality of standing trees based on a non-destructive method.
Keyword: Shorea spp., visual crown ratting, tree damage level index, carbon, wood strength

Judul: Deteksi Antibodi Anti-Escherichia coli K99 Dalam Kolostrum Induk Sapi Friesian Holstein Post Vaksinasi Escherichia coli Polivalen dengan Teknik
Abstrak: MIZWAR AMANSYAH. B04051631. Detection of Anti-Escherichia coli’s antibody for Friesian Holstein’s cow colostrum Post E. coli Vaccination with ELISA Method. Under directed: ANITA ESFANDIARI dan SRI MURTINI. This experiment was conducted to detect Escherichia coli (E. coli) K99 antibody in colostrum of Friesian Holstein’s cows vaccined by E. coli K99. Six pregnant cows were vaccined three times at 8, 6, 4 weeks before parturition. The vaccine was given by intramuscular with 5 ml/ animal doses. The colostrum was collected until 5th day after parturition. Immunoglobulin Gamma (IgG) antibody in the colostrum was detected using indirect ELISA method. The result of research shown that antibody can detected from first until colostrum 9, with concentration about 1,054 – 1,129 μg/100 μl. The highest colostrum concentration there in colostrum 1 with 1,129 ± 0,005 μg/100 μl. The conclusion of this research is pregnant cows which given vaccine E. coli polivalen can produce of spesific antibody from E. coli K99 in colostrum first until colostrum nineth with IgG concentration have decrease from colostrum first until colostrum third. Key word: Escherichia coli K99, bovine colostrum, ELISA
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