Judul: Analisis Keanekaragaman Isolat Pleurotus spp. Liar dan Domestik Berdasar Sifat Morfologi, Fisiologi dan Molekuler
Abstrak: Oyster mushroom (Pleurotus spp.) are edible mushroom with high diversity. Cultivated oyster isolates in Indonesia are from local isolates as well as from outside Indonesia. Report on their genetic diversity based on characteristic of morphological and physiological are still scare found in Indonesia, even analytic based on molecular characteristic is never report in Indonesia. This study was aimed to identify several kind of wild and domestic isolates of oyster mushrooms based on morphological, physiological, genetic, and molecular characteristic. The result indicated that there were two groups of isolates based on morphological characteristic of a fruiting body, A group and B group. A group was consisted ofHHB247 isolate (pink color) and nine isolates (white and brown color) grouped on B which then divided into two groups B1 and B2_ This B1 divided into two groups C1 and C2. C1 included only one isolate that was HHB215 isolate (brown color ) and C2 include one white color isolate (sp2) and one brown color isolate (sp6). B2 divided two groups D1 and D2, D1 included two white color isolates (sp3, sp5) and one brown color isolate (HHB328). D2 included three white color isolates (HHB327, sp4 and spl). Based on morphological characteristic the, ten of oyster mushroom isolates can not be in groups related to the color of fruiting bodies. The result indicated that there were two groups of isolates based on physiological characteristic, A group and B group. A group was consisted of HHB247 isolate (pink color) and nine isolates (white and brown color) grouped on B which then divided into two groups B1 and B2. B1 included only one isolate that was sp6 isolate (brown color). B2 divided two groups Cl and C2. Cl included two brown color isolates (HHB215, HHB328), C2 divided two groups Dl and D2. Dl include five white color isolates (spl, sp2, sp3, sp4, and sp5), D2 included only one isolate that was HHB327 isolate (white color). Based on physiological characteristic, ten of oyster mushroom isolates can be in groups related to the color. The frequency of mating between single spores of intra isolates (similar color of fruiting bodies) was highly (60% - 74%), but the frequency of mating between inter isolates was O %. Molecular analysis on Pleurotus spp. and Lentinus isolates was done using RAPD molecular marker with five primers (RP-2, RP-3, Rp-3, RP-4 and RP-6). The result indicated that there were two groups of isolates based on moleculer characteristic, A group and B group. A divided two groups Al and A2. Al included only one isolate that was HHB307 isolate ( the color was not determined), and A2 included six white color isolates (HHB327, Spl, Sp2, Sp3, Sp4, and Sp5) with 100% of similarity index. B divided two groups Bl and B2. Bl included three brown color isolates (HHB32S, HHB215 and sp6) with two last isolates had 100% of similarity index, and B2 included one...dst
Keyword: jamur tiram, RAPD, mating, analisis molekuler, spora tunggal

Judul: Seleksi Isolat Jamur Tiram Putih (Pleurotus spp.) Berdasarkan Sifat Pertumbuhan dan Perkembangan
Abstrak: The research objective is a selection of isolates of white oyster mushrooms (Pleurotus spp.) based on characters of growth and development for obtaining excellent isolate and they can be used for breeding program. The materials were consisted of seven isolates of white oyster mushrooms from several source is AMD, MTR, BBR, PGN, USX, BNK, TBN, and CSR isolates. The works consisted of isolate maintenance, seed production, planting, harvesting, observation, data collection, and data analysis using SPSS 10.01 application program. Based on research results, USX isolate had the highest biological efficiency, MTR isolate had the fastest reproduction phase, BBR isolate had the highest weight of fruit body, BNK isolate had the highest number of fruit body and AMD isolate had the shortest vegetative phase and the shortest period of growth and development. The isolate which accomplished the criterias of selection was AMD isolate because it had a short period of growth and development, high biological efficiency value, produced the highest number of fruit bodies, also had diameter of fruit body suitable to criterias of consumer.
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Judul: Pengaruh panjang deret waktu data terhadap perhitungan debit banjir rencana
Abstrak: Dalam perencanaan bangunan air, harus ditunjang oleh data yang lengkap. Pada kenyataannya data yang lengkap dewasa ini sulit diperoleh. Selain itu pengambilan data ini memerlukan waktu, ketepatan, ketelitian serta biaya yang cukup besar. Tujuan dari penelitian ini adalah mempelajari pengaruh panjang data terhadap perhitungan banjir rencana, menentukan besarnya banjir maksimum yang akan terjadi untuk periode waktu yang berbeda, serta menentukan distribusi banjir teoritis yang paling sesuai pada daerah yang diteliti. Menurut Chow (1964), di dalam analisa hidrologi digunakan asumsi bahwa kejadian-kejadian selama pengamatan cukup mewakili dan hasil pengamatan tersebut dapat dipercaya. Kepercayaan semakin meningkat dengan bertambah lamanya pencatatan data. Dalam kenyataannya, lama pencatatan data yang dilakukan tergantung dari periode ulang yang akan digunakan dalam mendesain suatu bangunan. Menduga suatu kejadian dengan periode ulang yang lebih besar daripada periode pencatatan menyebabkan hasil pendugaan tidak dapat dipercaya....
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