Biospecies
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Protein Biji Kelor Sebagai Bahan Aktif Penjernihan Air
Get PDFKelor memiliki sejumlah keuntungan bagi manusia seperti bahn sayur yang hiegenis,obat-obatan, bahan baku kosmetik dan sabun. Hasil penelitian ini menunjukkan bahwa biji kelor bisadigunakan sebagai bio-koagulan karena mengandung protein berumuatan positif yang dapat berperansebagai kation polielektolit dan penting dalam agen bio-koagulan
Pattern of Macro benthos Succession in Sabang Waters after Tsunami
Get PDFResearch about succession of macro benthos on limestone substrate was conducted atthree sites (Klah Island, Gapang Beach and Gapang Mangrove) in the coral reef ecosystem of WehIsland from April – December 2005. The selections of the sites are based on degradation of watersquality and coral reef condition. Limestone substrate as collectors were laid at 5 m waters depth ateach site, and further were taken after four and eight months. Succession pattern of macro benthoswas analyzed by Frontier Succession curve. The result shows that pattern of macro benthossuccessions were occurred significantly between locations and time. At site poor of natural coral reefcondition (Gapang Mangrove), succession pattern is in disturbance condition, while in Gapang Beachand Klah Island and Pulau Payung, which have good and fair coral condition, succession patterns aregoing in the direction of equilibrium condition. The result has indicated that waters quality is key factorfor macro benthos successio
Pengaruh Asam Giberelat (Ga3) Terhadap Perkecambahan dan Pertumbuhan Vegetatif Duku (Lansium Dookoo Griff.)
Get PDFPenelitian ini bertujuan mengetahui pengaruh Asam Giberelat (GA3) terhadap perkecambahan danpertumbuhan vegetatif duku. Perlakuan dengan pemberian GA3 pada beberapa konsentrasi yaitu 10 ppm, 50 ppm,100 ppm, 150 ppm, 200 ppm, 250 ppm, dan 0 ppm sebagai kontrol. Penelitian menggunakan Rancangan AcakLengkap (RAL) dengan empat kali ulangan. Pengamatan dilakukan terhadap waktu perkecambahan, dayaperkecambahan, tinggi tanaman, dan biomas (berat daun spesifik). Hasil analisis ragam menunjukkan bahwapemberian GA3 pada konsentrasi yang berbeda memberikan pengaruh berbeda nyata terhadap waktuperkecambahan dan daya perkecambahan (kecambah normal),. Berdasarkan hasil penelitian disimpulkan bahwa GA3dapat mempercepat perkecambahan biji duku, konsentrasi optimal untuk parameter perkecambahan yang diamatiadalah 100 dan 150 ppm
Efektivitas Konsentrasi Ekstrak Patikan Kerbau (Euporbhia hirta L. ) Terhadap Pertumbuhan Bakteri Staphylococcus aureus
Get PDFSome groups of traditional people in Indonesia use patikan kerbau to treat various diseasesincluding gastrointestinal disease and eczema. Both disease are caused by the bacterium ofStaphylococcus aureus. The lack of empirical data about the efficacy pf the plant urges the need toinvestigate the bioactivity of the plant. This research concludes that the extract of patikan kerbauinhibits the growth of S.aureus at the effective concentration 500 ppm
Obat Rajo Obat Ditawar : Tumbuhan Obat dan Pengobatan Tradisional Masyarakat Serampas – Jambi 1
Get PDFSerampas is an indigenous group of Jambi who still live traditionally. Serampas has a number of traditional knowledge related to local natural resources, including medicinal plants. This study aims to reveal the Serampas view about illness and the types of herbs they use. Research conducted by methods of participant observation, survey respondents, as well as in-depth interviews. The results showed that the community Serampas classifies herbs into two main groups: obat rajo and  obat ditawar. The Serampas use more than 131 species of medicinal plants. Although forests around the Serampas settlements are relatively undisturbed and rich in various plants, including medicinal plants, however, unexpectedly, most medicinal plant not derived from natural forests, but from the human made ​​ecosystem, mainly scrubland and agricultural areas
Effect of Type and Arbuskular Mikoriza Mushroom Dosage (CMA) to Growth of Chili [Capsicum annuum L.] at Ultisol Soil
Get PDFThe research has objective to know the effect of type and arbuskular mikoriza mushroom doses (CMA)to growth of chili (Capsicum annuum L.) at ultisol soil. This research used Completely Randomize Design of Factorialpattern consisting of two factor, that is : first factor of mikoriza type which consist of 3 level, j1 = Glomus sp., j2 =Gigaspora sp. and j3 = Glomus sp. and Gigaspora sp., than second factor of mikoriza doses which consist of 4level, d0 = 0 g, d1 = 5 g, d2 = 10 g. and d3 = 15 g. Data analyzed to use ANOVA and test continued DNMRT at 5% reallevel. The result showed that arbiskular mikoriza doses and type was significantly different to high plant, biomass growon and content of P. Type Gigaspora sp. with dose 15 g can be improve P element absorption and optimal growthvegetative
Kariotipe Rana chalconota Kompleks yang Terdapat di Sumatera Barat Karyotype of Rana chalconota Complex in West Sumatera
Get PDFABSTRACT. Study of thekaryotypeRanachalconotacomplexin WestSumatrahas been carried out from April to August 2010. Samples were collected from HPPBandthen analyzed at the Laboratory of Geneticsand Cytology Biology Department of FMIPA Andalas University Padang. The purpose of this study is determine thekaryotypeof the frog speciespreviously classified asR.chalconotathen described asRana rufipes and Ranaparvaccolain WestSumatra. The object was prepared by using airdrying method. The data was analyzed bythe statistical test Mann-Whitney Utest andWilcoxonU-Statistics. The results showed that the Ranarufipes has 13pairsof the chromosomesconsistingofonepair of the submetacentricchromosomesand12pairs of the metacentricchromosomes. Ranaparvaccolaalsohas 13pairsof chromosomesconsistingofthree pairs of the submetacentricchromosomesand10pairs of the metacentric chromosomes. The secondtype has 6pairs oflarge classesand7pairs ofsmallgroups. Keywords: Rana chalconotacomplex, Ranarufipes, Ranaparvaccola, karyotype ABSTRAK. Penelitian mengenai KariotipeRana chalconotakompleks yang terdapat di Sumatera Barat telah dilaksanakan pada bulan April–Agustus 2010. Pengambilan sampel dilakukan di Hutan Pendidikan dan Penelitian Biologi kemudian dilanjutkan dengan pembuatan preparat di Laboratorium Genetika dan Sitologi Jurusan Biologi FMIPA UNAND Padang. Penelitian ini bertujuan untuk mengetahui kariotipe dari dua jenis baru katak yang semula dikelompokkan R. chalconotatetapi, sekarang dideskripsikan sebagai R. parvaccola dan R. rufipes yang terdapat di Sumatera Barat. Pembuatan preparat dilakukan dengan metode kering udara dan analisis data dilakukan dengan uji statistik Mann-Whitney U Test dan Wilcoxon U Statistik. Hasil penelitian memperlihatkan bahwaRana rufipes memiliki 13 pasang kromosom yang terdiri dari satu pasang kromosom submetasentrik dan 12 pasang kromosom metasentrik. Rana parvaccola juga memiliki 13 pasang kromosom yang terdiri dari tiga pasang kromosom submetasentrik dan 10 pasang kromosom metasentrik. Kedua jenis ini memiliki 6 pasang golongan besar dan 7 pasang golongan kecil. Kata Kunci:Rana chalconotakompleks, Ranarufipes, Ranaparvaccola, kariotip
Tutupan Karang Keras dan Distribusi Karang Indikator di Perairan Aceh bagian Utara
Get PDFCoral reefs are widely recognized as the center of coastal biological activity, coastal protection and geological processes, and also the productive site for fisheries and tourism. By definition, ecological resilience is the ability of a system to undergo, absorb and respond to change and disturbance, while maintaining its functions and controls. The environmental conditions that favor such community resilience may be different from those that favor resistance. From six field components of reef resilience, benthic cover and coral indicators population structure are the most important for reef resilience. This research has been done at 20 sites in northern Aceh reef, i.e. Weh Island (Sabang) and Aceh Besar regency. Benthic coverage data were collected by employing line intercept transects methods, whereas data of indicator coral population structure were collected by employing belt transect. The results show that hard coral ercentage were range from 20.46% - 67.4%. Generally, hard coral cover in areas protected by the Sabang Weh Island management authority was higher than those occurred in open access areas. The resistant corals category includes Porites (massive) and Pavona which are abundant in western Weh Island, while larger coral colonies of resistant category such as Acropora dan Pocillopora, are abundant in eastern Weh Island. If sea surface temperature is increase, west and north parts of the Weh Island will be the most vulnerable areas for coral mass bleaching
Raising pH of Red-Yellow Podsolik Soil by Adding Ashes and its Relation to Nitrogen Fixer Microorganism Acitivities
Get PDFThe aim of this study to was to observe the impact of raising the pH of red-yellow soil byadding ashes and its relation to nitrogen fixer microorganisms activities. This experiment wasconducted using completely randomized design. The treatment is ash level i.e A = 0 g (control), B =20 g, C = 30 g, D = 40g, E = 50g, and F = 60g in 5 Kg of soil. The experiment was tested onsoybean (Glycine max (L.) Merr.). Measurement included soil pH both before and after treatment andthe number and biomass of nodules. The results of the study show that ashes significantly increasesoil pH (between 1,39 and 1,74 point) and significantlt affect on the number and biomass ofnodules. The highest number of nodules was found on treatment C and D, whereas the highestbiomass was on C and E. The optimal ash concentration to increases red-yellow podsolik soil pH andformation of nodule in Soybean is 30 to 50 g in 5 Kg soil
Pengaruh Ekstrak Daun Sirih (Piper betle Linn.) Terhadap Pertumbuhan Bakteri Streptococcus viridans
Get PDFPenelitian ini dilakukan untuk melihat pengaruh dari ekstrak daun sirih terhadap pertumbuhan bakteriStreptococcus viridans penyebab penyakit karies gigi. Rancangan percobaan yang digunakan adalahRancangan Acak Lengkap (RAL) dengan 6 perlakuan konsentrasi (0%, 10%, 30%, 50%, 70% dan 90%).Pengamatan dilakukan terhadap diameter daerah hambat menggunakan kertas cakram. Berdasarkan hasilpenelitian diperoleh rata-rata diameter daerah hambat (zona hallow) tertinggi pada pemberian konsentrasi90%, tidak berbeda nyata dengan konsentrasi 50% dan 70%. Selanjutnya pemberian konsentrasi ekstrakdaun sirih 0% dan 10% memberikan hasil terendah terhadap diameter daerah hambat dan berbeda nyatadengan perlakuan lainnya. Konsentrasi ekstrak daun sirih 50%-90% merupakan konsentrasi yang terbaikdalam menghambat pertumbuhan bakteri Streptococcus viridans