Open Science and Technology
https://opscitech.com/journal
<table cellpadding="2"> <tbody align="top"> <tr> <td width="135px">Journal Title</td> <td><a href="https://opscitech.com/journal"><strong>Open Science and Technology</strong></a></td> </tr> <tr> <td>ISSN</td> <td><strong><a href="https://issn.brin.go.id/terbit/detail/1616657190" target="_blank" rel="noopener">2776-169X</a> (print) | <a href="https://issn.brin.go.id/terbit/detail/1616745735" target="_blank" rel="noopener">2776-1681</a> (online)</strong></td> </tr> <tr> <td>DOI Prefix</td> <td><strong>Prefix 10.33292 </strong>by <strong>Crossref</strong></td> </tr> <tr> <td>Editor in Chief</td> <td><a href="https://sinta.kemdikbud.go.id/authors/profile/6761124" target="_blank" rel="noopener"><strong>Ali Rahmat, Ph.D.</strong></a></td> </tr> <tr> <td>Publisher</td> <td><a href="http://www.ressi.id/" target="_blank" rel="noopener"><strong>Research and Social Study Institute</strong></a></td> </tr> <tr> <td>Frequency</td> <td><strong><a href="https://opscitech.com/journal/issue/archive" target="_blank" rel="noopener">Two issues per year (April and October)</a><br /></strong></td> </tr> <tr> <td valign="top">Citation Analysis</td> <td><strong>Sinta | </strong><a title="Google Scholar" href="https://scholar.google.com/citations?user=M_ig61IAAAAJ" target="_blank" rel="noopener"><strong>Google Scholar</strong></a><strong> | <a href="https://garuda.kemdikbud.go.id/journal/view/27306" target="_blank" rel="noopener">Garuda</a> | Dimension</strong></td> </tr> </tbody> </table> <p><strong>Open Science and Technology</strong> is published by the Research and Social Study Institute as a means to publish research results and review articles from researchers in the fields of natural sciences, agricultural sciences, forestry sciences, engineering sciences, technology, and their applications. This journal is published twice a year (April and October). This journal is published online and in print. Open Science and Technology has the philosophy that this journal is open to anyone, including students, lecturers, researchers, consultants, and practitioners in the field of science and technology in general, to publish the results of their studies or research in this journal. This journal is also expected to become a fast-response journal, fast review, and fast publication. And in the future, it can be accredited nationally and indexed globally. Open Science and Technology has P-ISSN 2776-169X and E-ISSN 2776-1681</p> <p>Distribution: Open Access</p> <p>Frequency: Published biannual (April and October)</p>Research and Social Study Instituteen-USOpen Science and Technology2776-169XAdded value analysis of citronella oil processing using the hayami method
https://opscitech.com/journal/article/view/109
<p>Penelitian ini bertujuan menganalisis nilai tambah yang dihasilkan dari pengolahan minyak serai wangi menggunakan Metode Hayami. Minyak serai wangi merupakan komoditas penting dalam industri parfum dan kosmetik dengan nilai komersial yang signifikan. Metode Hayami digunakan sebagai alat evaluasi untuk mengukur efisiensi dan dampak ekonomi dari proses pengolahan minyak serai wangi. Melalui survei lapangan, pengumpulan data, dan analisis statistik, penelitian ini mengidentifikasi berbagai tahap dalam proses pengolahan minyak serai wangi dan mengukur nilai tambah yang dihasilkan pada setiap tahap. Hasil penelitian menunjukkan bahwa nilai tambah yang dihasilkan dari pengolahan minyak serai wangi adalah Rp1.000/kg. Marjin yang diperoleh didistribusikan untuk masing-masing faktor, yaitu keuntungan sebesar 88%, tenaga kerja sebesar 12%, dan sumbangan input lain sebesar 0%. Temuan ini memberikan wawasan tentang manfaat ekonomi dari pengolahan minyak serai wangi dan memberikan informasi bagi perencanaan pengembangan industri berbasis serai wangi serta upaya meningkatkan kesejahteraan masyarakat lokal, menciptakan peluang ekonomi baru, serta mendukung pertumbuhan sektor ini secara berkelanjutan.</p> <p><em>This study aims to analyze the value-added generated from citronella oil processing using the Hayami Method. Citronella oil is an important commodity in the perfume and cosmetics industry with significant commercial value. The Hayami Method was used as an evaluation tool to measure the efficiency and economic impact of citronella oil processing. Through field survey, data collection, and statistical analysis, this study identified the various stages in the citronella oil processing stages and measured the value-added generated at each stage. The value-added resulted from citronella oil processing was IDR1,000/kg. The margins obtained were distributed to each factor, namely business profit at 88%, labor wages at 12%, and contribution of other inputs at 0%. The findings of this study provide insight into the economic benefits of citronella oil processing and inform development planning for citronella-based industries as well as efforts to improve the welfare of local communities, create new economic opportunities, and support the sustainable growth of this sector.</em></p>Kiki YuliantoTeguh Mizwarni AnugrahSantosa Santosa
Copyright (c) 2024 Kiki Yulianto, Teguh Mizwarni Anugrah, Santosa Santosa
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2024-04-032024-04-03411810.33292/ost.vol4no1.2024.109Seed germination and adaptation of several national and introduced varieties of spinach plants (Spinacia oleracea L.) in tropical lowlands
https://opscitech.com/journal/article/view/111
<p class="Default" style="text-align: justify; text-justify: inter-ideograph;"><span lang="IN" style="font-size: 10.0pt;">Studi ini bertujuan mempelajari perkecambahan dan adaptasi beberapa varietas nasional dan introduksi tanaman horenso yang ditanam di dataran rendah tropis. Penelitian dilaksanakan pada September–November 2023 di lahan percobaan Fakultas Pertanian, Universitas Muhammadiyah Jakarta. Penelitian terdiri atas dua percobaan: percobaan pertama adalah uji perkecambahan dan daya adaptasi empat varietas tanaman pada <em>tray</em> semai menggunakan media tanam organik. Percobaan ini menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) dengan perlakuan varietas yang terdiri atas empat varietas horenso, masing-masing terdiri dari enam ulangan. Percobaan kedua adalah uji perkecambahan pada dua media perkecambahan yang berbeda, yaitu tanah organik dan tisu basah. Kedua percobaan menggunakan empat varietas yang sama, yakni dua varietas nasional (Kiara F1 dan Okezo 009) dan dua varietas introduksi (Mozart F1 dan Autumn Big-Leaf). Parameter yang diamati adalah persentase perkecambahan biji dan waktu kematian bibit setelah berkecambah. Pengamatan dilakukan pada 0–21 hari setelah semai. Hasil studi ini menunjukkan bahwa semua genotipe tanaman horenso yang digunakan tidak mampu beradaptasi dengan iklim tropis dataran rendah. Semua varietas tanaman memiliki persentase perkecambahan yang rendah, berkisar 0–38%, dan semua benih yang berkecambah mengalami kematian di usia 0–14 hari setelah semai. </span></p> <p>The study aims to examine the germination and adaptation of several national and introduced varieties of spinach plant in tropical lowlands. This study was carried out on September to November 2023 at the experimental field of Faculty of Agriculture, Jakarta Muhammadiyah University. This study consisted of two experiments: the first experiment was a test of germination and adaptability of four spinach varieties on seedling trays using organic growing media. The experiment used a Randomized Complete Block Design (RCBD) with the treatments of spinach verieties consisted of four varieties, each with six replications. The second experiment was a germination test in two different germination media, namely organic soil and moistened tissue. Both experiments used the same four varieties, namely two national varieties (Kiara F1 and Okezo 009) and two introduced varieties (Mozart F1 and Autumn Big-Leaf). The parameters observed were seeds germination percentage and seedlings death time after germination. The observation was carried out at 0 to 21 days after sowing. The results show that all spinach plant genotypes used could not adapt to the climate conditions of tropical lowlands. All four varieties produced low germination percentages, ranging from 0–38%, and all seeds that germinated died within 0–14 days after sowing.</p>Ade SumiahadiDirgahani PutriDian Diani TanjungRefa FirgiyantoAbi Mayu WisesaMuhammad Rafi Wahyu Putra
Copyright (c) 2024 Ade Sumiahadi, Dirgahani Putri, Dian Diani Tanjung, Refa Firgiyanto, Abi Mayu Wisesa, Muhammad Rafi Wahyu Putra
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2024-05-102024-05-104191810.33292/ost.vol4no1.2024.111Opportunities and challenges for orchid plant cultivation and development in Indonesia
https://opscitech.com/journal/article/view/112
<p>Keanekaragaman hayati di Indonesia, terutama anggrek sebagai tanaman hias, memiliki sebaran luas. Indonesia memiliki tidak kurang dari 6.000 spesies anggrek, namun sering menghadapi tantangan terkait konservasi dan budidayanya. Dalam menjaga kekayaan keanekaragaman hayati ini, program konservasi anggrek belum dikelola secara optimal sebagai bagian dari upaya pembangunan berkelanjutan untuk mempertahankan kualitas kehidupan manusia dan alam. Metode penelitian dalam studi ini bersifat kualitatif menggunakan pendekatan deskriptif terhadap objek penelitian, yaitu model analisis SOAR. Analisis ini berfokus pada kekuatan (<em>strengths</em>)<em>, </em>peluang (<em>opportunities</em>)<em>, </em>aspirasi (<em>aspirations</em>)<em>, </em>dan hasil (<em>results</em>) melalui studi pustaka dari beberapa buku atau jurnal ilmiah terpublikasi dengan batasan tahun. Budidaya dan pengembangan anggrek akan berfokus pada kekuatan dan peluang terutama yang berkaitan dengan pelestarian keanekaragaman anggrek sehingga kelemahan dan ancaman dapat berkurang. Tantangan budidaya yang dihadapi dalam hal perbanyakan generatif anggrek akan diatasi dengan memanfaatkan teknik kultur <em>in</em> <em>vitro </em>agar budidaya dapat dilakukan dalam waktu yang lebih singkat dengan hasil yang lebih banyak. Teknik kultur <em>in</em> <em>vitro </em>dapat digunakan pula untuk mempertahankan berbagai spesies anggrek alam sebagai salah satu upaya konservasi.</p> <p><em>Biodiversity in Indonesia, especially orchids as ornamental plants, is widespread. Indonesia has no less than 6,000 orchid species, but often faces challenges related to orchid conservation and cultivation. In maintaining this wealth of biodiversity, orchid conservation programs have not yet been managed optimally as a part of sustainable development effort to sustain the quality of human life and nature. This study employed a qualitative method through a descriptive approach on the research object, namely the SOAR analysis model. This analysis focused on strengths, opportunities, aspirations, and results through literature studies using several books or published scientific journals with year restriction. The cultivation and development of orchids will focus on the strengths and opportunities, especially concerning the preservation of orchid diversity so that the weaknesses and threats can be reduced. The cultivation challenge faced in terms of orchid generative propagation will be overcome by utilizing in vitro culture techniques so that the cultivation can be carried out in a shorter duration and produce larger yields. In vitro culture technique can also be carried out to maintain various nature orchid species as one of the conservation efforts.</em></p>Kurnia Dwi ArdiyantiLatifa Nuraini
Copyright (c) 2024 Kurnia Dwi Ardiyanti, Latifa Nuraini
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2024-06-232024-06-2341192610.33292/ost.vol4no1.2024.112Effectiveness of kipahit (Tithonia diversifolia) leaf extract on pests, diseases, and green spinach plant production
https://opscitech.com/journal/article/view/113
<p>Pestisida Organik dari tanaman digunakan untuk mengurangi pencemaran dan kerusakan lingkungan yang ditimbulkan pestisida kimia. Salah satunya tanaman Kipahit yang dapat bekerja sebagai <em>antifeedant</em> dan <em>repellent</em> dengan senyawa aktif flavonoid. Penelitian ini bertujuan mengetahui efektifitas interval waktu pemberian ekstrak daun Kipahit pada organisme penggangu tanaman bayam hijau yang ditanam secara hidroponik dan dampaknya pada produksi tanaman. Penelitian dilaksanakan di Kebun Hidroponik Pamtasa Farm, Sawangan, Depok, Jawa Barat, dari November – Desember 2021. Penelitian menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) dengan 6 perlakuan dengan masing-masing penyemprotan 500 ppm, yaitu; P0:Tanpa Penyemprotan (Kontrol), P1:Penyemprotan 2 hari sekali, P2:Penyemprotan 3 hari sekali, P3:Penyemprotan 4 hari sekali, P4:Penyemprotan 5 hari sekali, P5:Penyemprotan 6 hari sekali. Perlakuan diulang 4 kali sehingga didapat 24 unit percobaan, 8 tanaman per unit percobaan, sehingga terdapat 192 tanaman uji. Data dianalisis menggunakan Minitab versi 16 menggunakan parameter One Way Anova. Hasil penelitian menunjukkan penyemprotan ekstrak daun Kipahit setiap dua hari sekali dapat menekan penyakit Mosaik. Penyemprotan ekstrak daun Kipahit setiap lima hari sekali menunjukkan potensi menurunkan aktivitas larva <em>P. xylostella</em>. Persentase daun rusak terendah pada penyemprotan empat hari sekali yaitu sebesar 30,34%.<br /><br /></p> <p><em>Organic pesticides from plants </em><em>as</em><em> Kipahit plant can work as an antifeedant and repellent with active flavonoid compounds. This research aims to determine effectiveness of time interval for administering Kipahit leaf extract on </em><em>pest on </em><em>green spinach plants grown hydroponically and its impact on plant production. The research was carried out at Pamtasa Farm Hydroponic Garden, Sawangan, Depok, West Java, from November – December 2021. The research used a Randomized Complete Group Design</em> <em>with 6 treatments with each spraying 500 ppm, namely; P0: No Spraying (Control), P1: Spraying once every 2 days, P2: Spraying once every 3 days, P3: Spraying once every 4 days, P4: Spraying once every 5 days, P5: Spraying once every 6 days. The treatment was repeated 4 times to obtain 24 experimental units, each unit consists of 8 plants, so there were 192 test plants. Data were analyzed using Minitab version 16 using One Way Anova parameters. The research results show that spraying Kipahit leaf extract</em><em> once</em><em> every two days can suppress mosaic disease. Spraying Kipahit leaf extract</em><em> once</em><em> every five days shows the potential to reduce the activity of P. xylostella larvae. The lowest percentage of damaged leaves was sprayed</em><em> once</em><em> every four days, namely 30.34%.</em></p>Sukrianto SukriantoDian Diani TanjungSyifa Urrahman
Copyright (c) 2024 Sukrianto Sukrianto, Dian Diani Tanjung, Syifa Urrahman
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2024-06-282024-06-2841273510.33292/ost.vol4no1.2024.113