24 research outputs found
KARAKTER MORFOLOGIS DAN FISIOLOGIS TANAMAN NILAM DI BAWAH NAUNGAN DAN TANPA NAUNGAN
No full text<p class="IsiabstrakIndonesia">Nilam (<em>Pogostemon cablin</em>) merupakan tanaman semak yang dapat tumbuh di tempat ternaungi maupun terbuka. Namun perubahan karakter morfologis dan fisiologis tanaman pada naungan 55% yang mempengaruhi hasil belum diketahui. Penelitian dilaksanakan sejak April sampai September 2015 di Kebun Percobaan Cimanggu, Bogor. Penelitian bertujuan untuk membandingkan perubahan karakter morfologis dan fisiologis tanaman nilam yang mempengaruhi produksi dan mutu minyak nilam yang ditanam di bawah naungan 55% dan tanpa naungan. Penelitian menggunakan Rancangan Acak Kelompok dengan 20 ulangan. Parameter yang diamati adalah morfologi (jumlah daun, luas daun spesifik, tinggi tanaman dan jumlah cabang) dan fisiologi (kandungan air nisbi, jumlah klorofil, laju fotosintesis dan transpirasi), serta produksi terna dan hasil minyak. Data dikumpulkan dari masing-masing 20 sampel tanaman, dianalisis rata-rata dan <em>standard error</em> untuk menguji perbedaan antar perlakuan dan diuji lebih lanjut dengan analisis berganda Spearman untuk mengetahui hubungan antara parameter dengan hasil. Hasil penelitian menunjukkan tanaman nilam yang ditanam di bawah naungan 55% memiliki tinggi 87,05 cm, jumlah daun (576 helai), kandungan klorofil total (0,62 mg g<sup>-1</sup>), luas daun spesifik (191,57 g cm<sup>-2</sup>) dan laju fotosintesis (12,2 μmol CO<sub>2</sub> m<sup>-2</sup> s<sup>-1</sup>) lebih tinggi dan berbeda nyata dibandingkan dengan tanaman nilam yang ditanam tanpa naungan. Produksi terna kering 131,9 g tanaman<sup>-1</sup> meningkat 300% dibandingkan dengan tanpa naungan, dengan kadar minyak 2,3%.</p></jats:p
Pengaruh Temperatur, Kelembaban dan Cahaya Terhadap Pertumbuhan In Vitro Rhizoctonia Solani KUHN. Asal Tanaman Mentha Piperita
No full textTelah dilakukan penelitian pengaruh temperatur, kelembaban dan cahaya terhadap pertumbuhan in vitro Rhizoctoniasolani Kuhn., penyebab penyakit busuk pangkal batang tanaman menthe. Isolat R.solani yang di gunakan berasal dari tanaman menthasakit di kebun percobaan di Gunung Putri. Perlakuanyang di uji adalah temperatur.Kelembaban dan cahaya dengan menggunakan Rancangan Acak Lengkap. Penelitian dilaku-kan di laboratorium penyakit, Balai Penelitian Tanaman Repah dan Obat, Bogor. Hasil perobaan menunjukkan bahwa R.solaniI dapat tumbuh pada temperatur 13sampai dengan 30o C, optimum pada temparatur 25oC. pada temperatur 13 dan 20oC pertumbuhan jamur tertekan, temperatur 35oC jamur tidak tumbuh tetapidapat bertahan dan pada temperature 40oC menyebabkan kematian jamur. Pada kelembaban 100% dan cahaya yangterus menerus pertumbuhan jamur lebih baik
Penyakit Cendawan Pada Tanaman Obat di Kebun Percobaan Cimanggu
No full textPenelitian tentang adanya penyakit pada 11 macam tanaman obat telah dilakukan petak-petak koleksi tanaman obat, Kebun Percobaan Cimanggu pada bulan Mei 1991. Contoh tanaman sakit diambil dari petak kebun koleksi kemudian di lakukan isolasi dan identifikasi di laboratorium, Hasil penelitian menunjukan bahwa penyakit daun bergejala antraknosa yang disebabkan oleh Gloeosporium sp. Mendominasikan penyakit saat itu. Pathogen lain yang ditemukan adalah Colletotrichum sp., Fusarium sp. Dan Puccini sp
Patogenisitas Rhizoctonia Solani Kuhn. Terhadap Beberapa Varietas Mentha
No full textPathogenicity of Rhizoctonia solani Kuhn, on some varieties of peppermint.This experiment was carried out at the Phytopathology laboratory and glass house of the Research Institute for Spice and Medicinal Crops, from May to December 1993. The aim of the experiment was to evaluate the response some varieties of peppermints on pathogenicity of Rhizoctonia solani Kuhn, the casual agent of stem rot desease. The treatments were arranged in a Complete Randomized Design with five treatments and four replicates. The applied treatment were four varieties of Mentha arvenses, i.e. Jombang, Tempaku, Ryokubi, Taiwan and M. spicata species. The result showed that all Mentha varieties were infected by R. solani, under experimental condition. The most severe damage were observed on M. spicata and M. arvensis vat. Ryokubi, followed by M. arvensis var. Taiwan, M. arvensis var. Tempaku and M. arvensis var. Jombang respectively. The growth of R. solani on M. spicata leaf extract medium was faster, and thicker than leaf extracts of M. arvensis
Efficacy of Single Formula of Clove, Eucalyptus, Neem and Citronella Oil against Budok Disease of Patchouli
No full text<em>Budok is one of the most important patchouli diseases caused by </em>Synchytrium pogostemonis<em>,</em> <em>spread out through seeds, soil, and water. A research to develop botanical pesticides based on essential oils was conducted at Indonesian Spices and Medicinal Crop Research Institute in 2014. The research was aimed to evaluate the efficacy of single formula of clove, eucalyptus, neem, and citronella oil against budok disease. Research was conducted in disease endemic area in Cimanggu Research Installation, Bogor. Single formula of clove, eucalyptus, neem, and citronella oils were tested their efficacy against budok disease. Two synthetic fungicides of benomyl and bourdeaux mixture were used as comparison, and water as control. One month-old healthy patchouli plants were sprayed with each essential oil (5ml.l<sup>-1</sup>), benomyl (3 g.l<sup>-1</sup>), and bourdeaux mixture (1%) every two weeks for 5 times respectively. Experiment was arranged in randomized completely block design (7 treatments, 3 replication, and 20 plants/replication). Neem oil was the most effective formula in suppressing budok disease incidence (58.30%) com</em><em>pared to citronella (33.30%), clove (26.65%), and eucalyptus (8.30%), although it was still lower than benomyl (100%) and bourdeaux mixture (100%). Application of neem oil, benomyl, and bourdeoux mixture could inhibit </em>S. pogostemonis<em> infection and budok disease development. However, the application of clove and citronella oils only capable of inhibiting budok disease development. Those tested essential oils are potential to be developed as botanical pesticides to control budok disease of patchouli. However, their efficacy should be increased by producing formula mixtures of those essential oils.</em></jats:p
Penyakit Busuk pada Ylang-ylang
No full textPenelitian dilaksanakan di Laboratorium dan Rumah Kaca penyakit, Balai Penelitian Tanaman Rempah dan Obat, Bogor mulai bulan Juni sampai dengan Desember 1992. Tujuan penelitian adalah untuk mengetahui gejala dan penyebab penyakit serta patogenisitas cendawan yang diperloleh dari tanaman ylang-ylang (Canangium odoratum L. genuine) yang sakit. Isolasi pathogen dilakukan dari akar, batang dan ranting tanaman yang sakit. Selanjutnya dilakukan inokulasi dengan menggunakan isolasi murni pada daun, ranting dan akar bibit ylang-ylang. Hasil isolasi dan identifikasi diperoleh cendawan Rhizactonia sp., dan Fusarium spp., pada akar, batang maupun ranting tanaman sakit. Hasil inokulasi menunjukkan bahwa hanya cendawan Rhizoctonia sp, yang dapat menginfeksi tanaman dan menimbulkan gejala penyakit seperti gejala di lapangan
Adiabatic quantum pumping through surface states in 3D topological insulators
No full textWe investigate adiabatic quantum pumping of ballistic Dirac fermions on the surface of a strong three-dimensional topological insulator. Two different geometries are studied in detail, a normal metal–ferromagnetic–normal metal (NFN) junction and a ferromagnetic–normal metal–ferromagnetic (FNF) junction. Using a scattering matrix approach, we show that each time a new resonant mode appears in the transport window the pumped current exhibits a maximum and provide a detailed analysis of the position of these maxima. We also predict a characteristic difference between the pumped current in NFN- and FNF-junctions: whereas the former vanishes for carriers at normal incidence, the latter is finite due to the different nature of wavefunction interference in the junctions. Finally, we predict an experimentally distinguishable difference between the pumped current and the conductance.Quantum NanoscienceApplied Science
TINJAUAN KRITIS TERHADAP KONSEP IDEOLOGIS KEPENGARANGAN INDONESIA : KAJIAN SOSIOLOGIS
Full text linkIndonesian writers continue to race across the ocean of globalization and technology. Those who come from various regions, fused into a large community as citizens of the world literature, sow among a number of mirage and cyberspace. An Indonesia poet or author has diverse languages, in accordance with the ideological background (worldview) authorship respectively. Ideology means a way of thinking or way of life of a person or a group. This paper assesses the ideology of Indonesia authorship in terms of sosilogi. Sociology is the study of society or community. Through this sociological theory discovered the concept of Indonesian author diverse ideologies. Indonesian author is able to create an ideology novelty literary language in conditions of globalization regime. Through literature, the authors of Indonesia express ideas and thoughts for the people of Indonesia
Alternatif Konsep Kelembagaan untuk Penajaman Operasionalisasi dalam Penelitian Sosiologi
Full text linkEnglishThe experts have no the same perception regarding the term of “institution”. This leads to unworkable definitions and concepts. This paper reviews the existing thoughts, especially those related with the term of “organization”, and simplifies them to formulate an easier concept which enables scientists and practitioners to work with. Different meanings exist due to different points of views of the experts, especially in early stage of sociology development. Sine 1950’s, social institution and social organization have been distinguished strictly. The author proposes a solution, i.e., the term of “institution” to mention the social system in which it is classified into two important components, namely “institutional aspect” and “organizational aspect”. Through this differentiation, it is expected that the analysis becomes more detailed, signifies the strong and weak aspects, and enables to choose the strategy of developing it.IndonesianIstilah “kelembagaan” belum memperoleh kesamaan pengertian di kalangan para ahli. Hal ini menyebabkan munculnya beberapa pengertian dan konsep yang menyebabkan tidak dapat dioperasionalkan. Tulisan ini berusaha melakukan tinjauan (review) seluruh pemikiran yang berkembang, terutama kaitannya dengan istilah “organisasi”, untuk kemudian merumuskan satu konsep yang lebih mudah sehingga dapat dipergunakan baik untuk kalangan ilmuwan maupun praktisi. Ketidaksamaan pemaknaan terjadi karena setiap ahli memiliki titik pandang yang berbeda dalam membahasnya, terutama pda masa-masa awal perkembangan sosiologi. Namun, semenjak era 1950-an, sesungguhnya sudah terlihat adanya pembedaan yang tegas antara kelembagaan (social institution) dan organisasi (social organization). Sebagai solusinya, penulis menggunakan istilah “kelembagaan” untuk menyebut suatu sistem sosial dimaksud, yang didalamnya dapat dibagi menjadi dua komponen penting, yaitu “aspek kelembagaan” dan “aspek keorganisasian”. Dengan membedakan seperti ini, maka analisa dapat lebih mendalam, dapat diketahui aspek apa yang kuat dan lemah, serta dapat memilih strategi untuk pengembangannya
TANTANGAN PENGINTEGRASIAN JAMINAN KESEHATAN DAERAH KE DALAM JAMINAN KESEHATAN NASIONAL UNTUK MEWUJUDKAN CAKUPAN PELAYANAN KESEHATAN UNIVERSAL
Full text linkThis study is to review the facts in the health care field, where WHO has agreed to achieve Universal Health Coverage (UHC) in 2014. UHC is a health system that ensures every citizen in the population has fair access to a qualified promotive, preventive, curative, and rehabilitative health care at reasonable costs. Universal coverage contains two core elements namely equitable access to qualified health services for every citizen, and the protection of financial risks when people use health services. Indonesia is currently in transition towards UHC. Law No. 40 Year 2004 about National Social Security System (UU SJSN)' has answered the basic principles of UHC by requiring every citizen to have access to comprehensive health services that are needed through pre-effort system. Then, the author will formulate solutions to these problems which can be seen as a recommendation for the implementation of health care development. Problem solving methods used in formulating solutions to problems are policy analysis using William Dunn and Abidin's theory, and the Fishbone Diagram. Based on the analysis, the author advises the need to arrange a formulation that meets the demands of integration of Jamkesda into JKN. Formulation of policies which have been directed towards the centralization of health financing through JKN program must be balanced by providing a flexible space for local governments to participate in decision making processes dynamically. This formulation is called Centralized Dynamic Integration policy formulation.Â
