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Pinta Omas Pasaribu
Universitas Negeri Jakarta
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Pemberdayaan Masyarakat melalui Budidaya dan Pengolahan Sayuran Microgreen di Desa Cisaat, Kecamatan Ciater, Kabupaten Subang Pasaribu, Pinta Omas; Indrayanti, Reni; Adisyahputra, Adisyahputra; Asharo, Rizal Koen; Rizkawati, Vina; Achmad, Farhana Faridah; Febrian, Reyno Ahmad; Utari, Raysita
Jurnal SOLMA Vol. 14 No. 2 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v14i2.17210

Abstract

Background: Cisaat Village, located in Ciater District, Subang Regency, has significant agricultural potential. Most of its residents rely on agriculture as their primary source of livelihood. However, efforts to diversify agriculture and optimize land use in Cisaat Village have not been fully maximized. Most farmers still depend on conventional farming systems, which face challenges such as seasonal dependency, high production costs, and limited access to more efficient agricultural innovations. The purpose of comminity is introduce the public to the cultivation and processing of microgreens as a food source to boost the household economics in Cisaat Village, Ciater District, Subang Regency. Methods: The community service activity was carried out through socialization in the form of lectures, discussions, and demonstrations or hands-on practice on microgreen cultivation techniques and benefits. The evaluation was conducted using a pre-test before the activity and a post-test afterward to measure participants' improvement in understanding. The pre-test and post-test data were statistically analyzed using the Dependent T-test to determine the significance of differences before and after the activity. Results: Participants demonstrated high enthusiasm and were actively engaged throughout the activity. The T-test results showed a significant improvement in understanding, with the average pre-test score of 46.44 increasing sharply to 86.04 in the post-test (p < 0.05). This indicates that the applied method has proven to be effective. Conclusions: This socialization, combined with live demonstrations, proved helpful in introducing participants and boosting their interest in growing microgreens, both to meet household vegetable needs and as an additional income opportunity.
Effectiveness of Gibberellin Concentration (GA3) for The Growth and Propagation of Plant Cuttings Stevia Rebaudiana Pasaribu, Pinta Omas; Saputro, Sigit; Indrayanti, Reni; Adisayhputra, Adisayhputra
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7605

Abstract

Stevia (Stevia rebaudiana) is a perennial semi-herbaceous plant whose leaves can be used as a sweetener for food and beverages. Stevia sweetener has low calories so its use is not bad for health. Propagation of Stevia by stem cutting using the top is a simple, fast, and easy propagation technique. This study aimed to obtain the optimum concentration of GA3 and the correct propagation method for Stevia cuttings for lowland areas. The research was conducted at the Green House, Biology Study Program FMIPA UNJ. The method used was an experimental method with a completely randomized design, consisting of 3 experiments, namely the provision of GA3 with a dose of 10 ppm, 30 ppm, and 50 ppm. Qualitative data were processed descriptively, quantitative data were analyzed based on ANOVA. The results showed that the use of Gibberellins with a concentration of 10 ppm and the maintenance of Stevia cuttings in clear plastic containers were more effective in the development of an average stem length of 19.18 ± 2.40, a mean plant length of 23.62 ± 2.34 and an average number of roots 14, 33 ± 2.32.
Inventarisasi dan Studi Asosiasi Anggrek Epifit dengan Pohon Inang di Kawasan Bukit Plawangan, Taman Nasional Gunung Merapi Priambodo, Rizky; Arman, Zico; Dewi, Maharani; Cari, Rimbi Brahma; Subhi, Fajriana Nurul; Asharo, Rizal Koen; Pasaribu, Pinta Omas; Rizkawati, Vina
Bioma Vol. 17 No. 1 (2021): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/Bioma17(1).3

Abstract

Anggrek termasuk pada famili Orchidaceae dan merupakan tumbuhan herba perenial yang memiliki bentuk bunga sangat beragam dengan 231 jenis diantaranya dinyatakan endemik. Eksplorasi dan Inventarisasi Anggrek di Lereng Selatan Gunung Merapi berdasarkan data terakhir sebelum erupsi tahun 2010 terdapat 19 jenis anggrek epifit dari 23 jenis anggrek yang ada. Penelitian ini bertujuan untuk menginventarisasi dan mempelajari studi asosiasi anggrek epifit dengan pohon inang di kawasan Bukit Plawangan, Taman Nasional Gunung Merapi. Penelitian dilakukan dengan mengambil data primer berupa jenis anggrek, jenis inang, zonasi percabangan anggrek tumbuh, dan jumlah anggrek. Data dianalisis menggunakan indeks asosiasi Oichai dan nilai indeks similaritas. Jumlah anggrek yang ditemukan yaitu 82 individu yang terdiri dari lima jenis anggrek epifit, yaitu Vanda tricolor, Eria retusa, Dendrobium mutabile, Pholidota carnea, dan Coelogyne speciosa, serta pohon inang yang ditumbuhi anggrek yaitu pohon Schima wallichii, pohon Ficus sp., dan pohon Pinus sp.. Berdasarkan indeks asosiasi Oichai, anggrek epifit dengan pohon inang berada pada kondisi kurang erat dengan 73,33%. Nilai matriks asosiasi menunjukan adanya toleransi anggrek untuk tumbuh bersama karena memiliki nilai asosiasi positif dan asosiasi negatif yang relatif sama yaitu 57,14% dan 42,8%. Indeks similaritas menunjukan tidak terdapatnya perbedaan spesies antar pohon inang karena memiliki indeks dibawah 75%.
KOMPOSISI DAN KEANEKARAGAMAN TUMBUHAN BAWAH DI KAWASAN YANG TERKENA DAN TIDAK TERKENA ERUPSI DI TAMAN NASIONAL GUNUNG MERAPI, YOGYAKARTA Pasaribu, Pinta Omas; Prasetyo, Arief; Reforina, Alika; Ningrum, Atika Cahya; Rizky, Muhammad Hafidh; Asharo, Rizal Koen; Priambodo, Rizky; Rizkawati, Vina
Bioma Vol. 17 No. 1 (2021): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/Bioma17(1).5

Abstract

Gunung Merapi merupakan salah satu gunung api teraktif di Indonesia yang telah mengalami erupsi besar pada tahun 2006 dan 2010 yang menyebabkan dampak bagi ekosistem dan kematian pada vegetasi di sekitar Gunung Merapi. Pemulihan yang terjadi setelah erupsi Gunung Merapi merupakan suksesi sekunder. Tumbuhan bawah adalah indikator pada suatu area yang mengalami suksesi sekunder. Penelitian ini bertujuan untuk membandingkan komposisi dan keanekaragaman tumbuhan di daerah yang terkena erupsi dan daerah yang tidak terkena erupsi di Taman Nasional Gunung Merapi, Yogyakarta. Penelitian dilaksanakan pada bulan Oktober sampai dengan Desember 2019. Metode penentuan area lokasi penelitian dilakukan dengan purposive sampling dan penggambilan data menggunakan metode kuadrat secara beraturan (systematic sampling). Tumbuhan bawah yang mendominasi di daerah yang terkena erupsi adalah Themeda arundinaceae dengan nilai INP 66,939% sedangkan pada daerah yang tidak terkena erupsi didominasi oleh Ageratina riparia dengan nilai INP sebesar 54,731%. Keanekaragaman tumbuhan bawah pada kedua lokasi tergolong rendah, namun lokasi yang tidak terkena erupsi memiliki nilai indeks lebih tinggi dibandingkan dengan daerah yang terkena erupsi yaitu sebesar 1,966 sedangkan pada daerah yang terkena erupsi sebesar 1,139.
KEANEKARAGAMAN FITOPLANKTON DI DANAU KENANGA UNIVERSITAS INDONESIA, JAWA BARAT Koen Asharo, Rizal; Pasaribu, Pinta Omas; Rizkawati, Vina; Priambodo, Rizky; Hakim, Abdul; Fathulhuda, Nur Wahyu; Fajriah, Winda Nurul; Ilahi, Muthiah Rahmah; Wardana, Nurul Assyifa
Bioma Vol. 19 No. 2 (2023): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/Bioma19(2).6

Abstract

In addition to urban forest area at the University of Indonesia, Depok Campus, West Java, there are lakes that functions as water reservoir area. University of Indonesia is eager to create green and beautiful campus environment with one of its efforts is to care for the lake ecosystem in the campus. This study was conducted to analyze the diversity of phytoplankton in the lake. Sampling was carried out by determining 3 location points with 3 times repetitions conducted on different days. The water samples taken were then identified at the Biology Laboratory FMIPA UNJ. The mean values of water quality parameters obtained were pH 10, TDS 90 ppm, temperature 30°C, and water clarity 46 cm. The results showed that 14 genera and 20 species have been found, they are Chlorophyta, Chroococcus, Coelosphaerium, Crucigeniella, Euglena, Gloeocapsa, Merismopedia, Pediastrum (3 species), Peridinium, Scenedesmus (4 species), Tablelaria, Tetrastrum, Volvox, and Westella (2 species). The Diversity Index Shannon-Wiener during the observation was 2.9, which means that the condition of water at the University of Indonesia Lake was very good and not polluted. The availability of phytoplankton in the area was generally sufficient which can be utilized by other organisms as food source.
Isolation and Characterization of Pathogenic Mold Causing Potato Tuber Rot Disease Asharo, Rizal Koen; Indrayanti, Reni; Amala, Azizatul; Raihan, Eldrian Daffa; Tampanguma, Raymond Rayhand; Putri, Hilda Arsyah Eka; Pasaribu, Pinta Omas; Wardana, Nurul Assyifa
Jurnal Penelitian Pendidikan IPA Vol 10 No 4 (2024): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i4.6355

Abstract

The potato plant (Solanum tuberosum L.) is a perennial crop that contains high amounts of carbohydrates, minerals, and vitamins in its tubers, making it a carbohydrate-rich alternative food to rice or corn. One of the diseases that often appear on potato plants is potato rot caused by pathogenic molds. This study aims to isolate and characterize pathogenic fungi that cause blight on potato tubers based on Koch's Postulates. Potato pathogenic molds were isolated from potato tubers that had been rotted, then the molds were grown on PDA and purified twice. The purified isolates were then inoculated onto 30 healthy potato tubers and incubated for 7 days. Healthy potato tubers experienced the same symptoms as potato tuber rot. The isolated pathogenic fungi were then characterized so that the pathogenic fungi of Phytophthora infestans were obtained. In this study, Koch's Postulate method was successfully applied to isolate and characterize the pathogenic fungi that cause potato tuber rot. The pathogenic fungi caused a potato tuber rot disease incidence value of 100% with a disease severity value of 60.7%. The two factors that determine the disease incidence and disease severity values are internal factors (genes and traits of the pathogen) and external factors (environment).
Co-Authors Abdul Hakim Achmad, Farhana Faridah Ade La Yusup Adisayhputra, Adisayhputra Adisyahputra Adisyahputra Adisyahputra Adisyahputra, Adisyahputra Agung Mulya Darmawan Amala, Azizatul Anandhita Arnelya Apriliani, Puput Arief Prasetyo Arman, Zico Asmara, Yustika Tri Aulya, Nailul Rahmi Azizah, Sri Devi Nur Cari, Rimbi Brahma Damayanti, Aldira Putri Elsa Lisanti Fajriah, Winda Nurul Farhana Faridah Achmad Fathulhuda, Nur Wahyu Febrian, Reyno Ahmad Fitriasari, Sheryl Ilahi, Muthiah Rahmah Ivan Hafidhuddin Khairiyyah, Anisah Koen Asharo, Rizal Laksmi Puspitasari M Zaidun Sofyan Maharani, Dewi Mega Putri Nabilah, Saskia Ningrum, Atika Cahya Novia Lis Cahyati NOVITASARI, Ayu Nursahara Pasaribu Nurul Assyifa Wardana Perdani, Nindyra Karimah Putri, Hilda Arsyah Eka Raihan, Eldrian Daffa Reforina, Alika Reni Indrayanti Resti Wahyuni Rinny Saputri Rizal Koen Asharo Rizal Koen Asharo Rizkawati, Vina Rizky Priambodo Rizky, Muhammad Hafidh Saputro, Sigit Saraswati, Rahadian Ajeng Savira, Ananda Nuri Setyaningsih, Fani Subhi, Fajriana Nurul Tampanguma, Raymond Rayhand Usman Usman Utari, Raysita Vina Rizkawati Wardana, Nurul Assyifa YULIA IRNIDAYANTI