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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Pertanian Indonesia Biology, Medicine, & Natural Product Chemistry BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Penelitian Pendidikan IPA (JPPIPA) Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Jurnal Pembelajaran dan Biologi Nukleus Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Ilmiah Pertanian ( JIPERTA) Journal of Applied Agricultural Science and Technology Jurnal Natural Journal Liaison Academia and Society
Saipul Sihotang
Universitas Medan Area
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Variety Study on Germination Power of Palm Seeds (Elaeis guineensis Jacq.) Yabani, Yabani; Kuswardani, Retna Astuti; Susanto, Agus; Sihotang, Saipul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i3.5913

Abstract

Seeds as planting material play an important role in agricultural development. The high demand for oil palm sprouts causes the long germination time to become an obstacle for consumers and seed producers. The aim of this research is to examine varieties on germination capacity of oil palm seeds. Research was conducted at the PPKS Seed Processing Unit on nine PPKS varieties (Simalungun, PPKS 540, Yangambi, PPKS 239, PPKS 718, Dumpy, Avros, Langkat, and PPKS 540 NG). The parameter observed was the germination power (DB) of the seeds. The treatment given in the germination process for all varieties is carried out to ensure that the environment is favorable for germination (according to the SOP). Observation results showed that PPKS 540 variety had the highest DB (84.9%), followed by Simalungun (81.46%), PPKS 540 NG (75.46%), Langkat (75.43%), Dumpy (73.41 %), PPKS 718 (72.29), Yangambi (68.81%), PPKS 239 (65.74%), and Avros (56.92%). This is thought to be due to the influence of internal factors, related to the conditions of the germinated seeds, both genetics and hormones, as well as external conditions which include optimal water, temperature and oxygen treatment during germination. The results show that the water content (KA) of the seeds in the soaking period (I) was 16-20%, and soaking (II) was 19-22%, all processed seeds were still at a safe level of water content for the process of breaking dormancy of oil palm seeds. The characteristics of parent tree of the seed variety are the cause of differences in seed germination
Study on the Production of Superior Seed Bunches of Oil Palm (Elaeis guineensis Jacq.) (Case Study: Indonesian Oil Palm Research Institute-PPKS Marihat Unit) Yabani, Yabani; Kuswardani, Retna Astuti; Susanto, Agus; Sihotang, Saipul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5882

Abstract

This research aims to examine the production of superior oil palm seed bunches in the PPKS Marihat Unit.Data and information collection is carried out using direct and indirect methods. Field observations carried out include: Area conditions including: topography, soil conditions, Plant conditions including: plant growth, plant population and fruit condition, Technical culture conditions: fertilization, harvesting of seed bunches. Supporting data collected includes: garden production data, rainfall and fertilization data. The research results are bSeveral factors that cause low production include: a) fertilizer amounts that are far from plant needs, given the time, type; b) plant density which is classified as less than optimal due to ganoderma attacks. The number of bunches is the result of plant physiological processes, mainly determined by the ecophysiological conditions of the plant around 24 months before harvest, where the decrease in production in the number of bunches harvested in 2020 is the result of ecophysiological conditions in the form of fertilization which is not appropriate in 2019-2020.
The Combination of Plant Growth Promoting Rhizobacteria (PGPR) Paitan Root with Several Types of Bokashi and Its Effect on Tatsoi Meyuliana, Aulia; Yora, Muharama; Elinda, Friza; Miranda, Cut Nyak Dara; Sihotang, Saipul
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 9 No. 1 (2024): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, 9 (1)Desember 2024
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v9i1.12957

Abstract

The combination of PGPR (Plant Growth Promoting Rhizobacteria) with bokashi aims to increase nutrient availability in the soil. PGPR which comes from paitan roots is known to have the potential to help nutrient availability so by combining it with bokashi it is hoped that it will optimize its potential in increasing tatsoi production. The bokashi used in this research were chicken manure bokashi and goat manure bokashi. Research design with two factors, namely five doses of PGPR and two types of bokashi. The PGPR doses used were 0 ml/L (D0), 50 ml/L (D1), 100 ml/L (D2), 150 ml/L (D3), 200 ml/L (D4) and two types of Chicken bokashi (A) and Goat Bokashi (K) with 5 repetitions. The observations measured were plant height (cm), number of leaves (strands) and crop diameter (cm). The results of the research showed that the combination of PGPR with bokashi chicken manure and bokashi goat manure did not have a significant effect on plant growth, namely plant height, number of leaves and crop diameter of tatsoi.
Characteristics of Wild Edible Mushroom Knowledge of Mushroom Foragers in Indonesia Sihotang, Saipul; Hermawan, Rudy; Putra, Ivan Permana
Jurnal Ilmu Pertanian Indonesia Vol. 30 No. 2 (2025): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.30.2.368

Abstract

Edible wild mushrooms (EWM) are food sources which have high nutritional value. Although they are not the main choice of daily foods in Indonesia, various local communities and mushroom foragers have been consuming EWM for decades, yet without proper documentation. This study aimed to preserve the knowledge of EWM consumption to increase the popularity and public awareness of EWM as alternative food in Indonesia. Data was collected via a structural survey to 50 mushroom hobbyists with range of 18-50 years old and representing several ethnic groups in Indonesia: Javanese, Malay, Sundanese, Banten, and Bugis. Most of the respondents have consumed EWM for more than 5 years, with a frequency of consuming more than once per month, and the knowledge of foraging was obtained from their families. The edible mushrooms were collected mostly after every January and usually consumed by themselves. The location for mushroom seeking and species of EWM mostly were the forests around residence area and Termitomyces spp. (local names: ‘jamur barat’, ‘jamur bulan’, ‘jamur rayap’, ‘jamur trucuk’, ‘jamur sempagi’, respectively). The taste of mushroom was the main reason for forage activity among the hobbyists. They generally consumed all parts of basidiomata and preferred the soft texture of fruiting body. The soup dish was the most preferred by foragers, in contrast to fried cooking type. Most of them distinguish EWM from poisonous mushrooms by observing certain structures basidiomata, however, cases of wild mushroom poisoning have occurred among foragers with low occurrence of frequency. Keywords: Indonesia; edible wild mushrooms; characteristics; mushroom foragers
Pengaruh Mikoriza dan POC Urin Sapi terhadap Pertumbuhan Cabai Merah di Zona Iklim Kering E Parlindungan Sitepu, David; Sihotang, Saipul
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 2 (2025): Jurnal Ilmiah Pertanian (JIPERTA), September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i2.6009

Abstract

Red chili pepper (Capsicum annuum L.) is a horticultural commodity with high economic value that is greatly influenced by agroclimatic conditions. In dry climate zone E (Oldeman classification), plant growth is often hampered due to water limitations and low soil fertility. This study aims to evaluate the effect of arbuscular mycorrhizal administration and liquid organic fertilizer (POC) of cow urine on the vegetative growth of red chili plants in dry climate zone E. The study was conducted using a factorial Random Group Design (RAK) with two factors: mycorrhizal dose (0, 35, 85, and 135 g/plant) and POC concentration of cow urine (0, 30, 35, and 40 ml/L), Each was repeated three times, making a total of 48 experimental units. The parameters observed included plant height, number of leaves, stem diameter, time of emergence and number of shoots. The results showed that the dose of mycorrhizal 135 g and the POC concentration of 40 ml/L gave the best results on almost all vegetative parameters. The interaction of the two also showed a significant influence on plant height and number of shoots. These findings support the application of bioagent-based eco-friendly technologies in sustainable farming systems on dry climates.
Potensi Aplikasi Endofit dalam Agroekosistem Berkelanjutan: Biofertilizer dan Biokontrol Hayati Sihotang, Saipul; Panggabean, Ellen Lumisar; Alifyah, Nabila; Saragih, Nur Betty; Nasution, Lita; Halawa, Emmanuel; Saragih, Ryan
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 9 No. 2 (2025): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, 9 (2) Juni 2025
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v9i2.7859

Abstract

Endophytic microorganisms have become a central focus in numerous studies related to sustainable agriculture due to their dual potential as biological agents—functioning both as biocontrol and biofertilizers. The presence of endophytes within plant tissues has been shown to enhance vegetative growth, strengthen resistance against pathogenic attacks, and optimize nutrient uptake. This article presents a systematic review of recent studies from 2018 to 2024, addressing the classification, mechanisms of action, and potential applications of endophytic microorganisms in agriculture. Several bacterial genera, including Bacillus spp., Azospirillum spp., and Pseudomonas spp., along with non-pathogenic fungal groups such as Trichoderma spp. and Fusarium spp., have demonstrated effectiveness in nitrogen fixation, phosphate solubilization, phytohormone synthesis, and the production of antimicrobial compounds. Research findings indicate that the application of endophytic microorganisms as biological inputs holds great promise in supporting the development of environmentally friendly, sustainable, and high-yielding agricultural systems.
Biofertilizer For Increasing Growth And Yield Of Melon (Cucumis Melo L.) Alifyah, Nabila; Betty Saragih, Nur; Maulana, Bagus; Sihotang, Saipul
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 9 No. 2 (2025): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, 9 (2) Juni 2025
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v9i2.12584

Abstract

This study aims to develop biofertilizer from Metharizium sp. to increase the production of melon plants (Cucumis melo L.). The excessive use of chemical fertilizers has damaged soil quality and the environment in Indonesia. Environmentally friendly biofertilizers can be a solution to improve soil fertility and increase crop yields. The research was conducted in Serdang Bedagai Regency from April to July 2024. The research method includes land preparation, planting, making granular compost, fertilizer application, and data analysis. The study is expected to provide an effective Metharizium sp. granular fertilizer formulation to increase melon production and reduce the use of chemical fertilizers.
Sosialisasi Pemeliharaan Tanaman Bunga Hias kepada Warga Desa Perumnas Simalingkar Kecamatan Pancur Batu Kabupaten Deli Serdang Sembiring, Swati; Saragih, Magdalena; Sembiring, Riduan; Ginting, Rajiv; Sihotang, Saipul; Silaban, Sri Rejeki; Pandiangan, Indera Prabowo
Journal Liaison Academia and Society Vol 5, No 2: Juni 2025
Publisher : Lembaga Komunikasi dan Informasi Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58939/j-las.v5i2.1153

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan dan keterampilan warga Desa Perumnas Simalingkar, Kecamatan Pancur Batu, Kabupaten Deli Serdang, dalam hal pemeliharaan tanaman bunga hias sebagai upaya pemberdayaan ekonomi berbasis rumah tangga sekaligus pelestarian lingkungan. Latar belakang kegiatan ini berangkat dari potensi besar yang dimiliki oleh desa tersebut, yaitu kondisi iklim dan geografis yang mendukung pertumbuhan tanaman hias, namun belum dimanfaatkan secara optimal oleh masyarakat karena keterbatasan informasi dan keterampilan teknis. Kegiatan ini diikuti oleh Ibu PKK yang merupakan warga desa perumnas simalingkar kecamatan pancur batu kabupaten deli serdang. Hasil dari kegiatan ini menunjukkan bahwa peserta mengalami peningkatan pemahaman yang signifikan terhadap aspek teknis pemeliharaan bunga hias, yang diukur melalui pre-test dan post-test sederhana. Selain itu, peserta menunjukkan antusiasme untuk mulai menanam dan merawat bunga hias di pekarangan rumah masing-masing sebagai langkah awal menuju kegiatan usaha mikro berbasis tanaman hias. Kegiatan ini memberikan kontribusi nyata dalam membangun kesadaran masyarakat terhadap nilai estetika dan ekonomi dari tanaman hias serta mendorong inovasi pemanfaatan lahan pekarangan secara produktif. Dengan memanfaatkan teknologi digital dalam pelaksanaan sosialisasi, kegiatan ini membuktikan bahwa pengabdian kepada masyarakat tetap dapat dilakukan secara efektif dan efisien, meskipun dalam keterbatasan mobilitas. Keberlanjutan program ini diharapkan terjaga melalui pendampingan lanjutan dan pengembangan kelompok tani bunga hias secara swadaya masyarakat.
Isolation, Morphological Characterization, Biochemistry, and Antagonistic Activity of Endophytic Bacteria from Rice Against Xanthomonas oryzae pv. Oryzae Sihotang, Saipul; Butar-Butar, Alfons Dwi Putra; Nasution, Lita; Rahma, Haliatur; Trizelia, Trizelia; Saragih, Magdalena; Kuswardani, Retna Astuti; Listiana, Ika; Napitupulu, Beatrix Sofranes
Biology, Medicine, & Natural Product Chemistry Vol 14, No 2 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.142.825-829

Abstract

Endophytic bacteria have the potential as environmentally friendly biocontrol agents in controlling bacterial leaf blight (BLB) in rice caused by Xanthomonas oryzae pv. oryzae (Xoo). This study aims to isolate, characterize morphology and biochemical tests, and test the antagonistic activity of endophytic bacteria from rice against Xoo. Isolation was carried out from healthy rice root tissue using a surface sterilization method. Morphological characterization included colony shape, color, edge, elevation, and Gram properties, while biochemical characterization included catalase, oxidase, motility, starch hydrolysis, and sugar fermentation tests. The antagonistic test used a dual culture assay method on NA (nutrient agar) media. The isolation results obtained six endophytic bacterial isolates (BETP 01–06) identified as the genus Pseudomonas and Bacillus with varying colony morphological characters. Antimicrobial activity test showed two potential isolates, BETP 03 (Pseudomonas) and BETP 05 (Bacillus), with an average inhibitory diameter of 16.3 mm and 16.5 mm against Xoo, respectively. Biochemical characterization showed that BETP 03 was bacillus, Gram-negative, citrate-negative, motile, gelatin hydrolysis positive, starch hydrolysis positive, and catalase positive; while BETP 05 was bacillus, Gram-positive, citrate-positive, motile, gelatin hydrolysis negative, starch hydrolysis positive, and catalase positive. These results indicate that both isolates have high potential as biological biocontrol agents in controlling bacterial leaf blight disease in rice.
Antibacterial Test of Teki Grass Extract (Cyperus Rotundus) in Inhibiting Escherichia Coli and Salmonella Typhi Sartini, Sartini; Rahmiati, Rahmiati; Herliyani, Selvi; Riyanto, Riyanto; Panggabean, Ellen L.; Sihotang, Saipul
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3180

Abstract

This study aims to determine the antibacterial ability of Cyperus rotundus extract in inhibiting the growth of Escherichia coli and Salmonella typhi by measuring the diameter of the inhibition zone. This research method used a completely randomized design (CRD) and LSD test as a follow-up test with one factor, namely variations in the concentration of C. rotundus extract 20%, 40%, 60%, 80% and 100%, distilled water as a negative control and the antibiotic chloramphenicol as a positive control. The results showed that the extract of C. rotundus could inhibit the growth of Escherichia coli with the largest inhibition zone diameter indicated by a concentration of 100% which was 2.33mm and the smallest inhibition zone diameter was found at a concentration of 20%, namely 1.00 mm. While in Salmonella typhi the largest inhibition zone was shown at a concentration of 100%, namely 3, 03mm and the smallest inhibition zone was indicated by a concentration of 20%, namely 1.07 mm. The results of the ANOVA and LSD tests with 95% confidence test showed that there was a difference in the average diameter of the inhibition zone in each treatment with variations in the concentration of C. rotundus extract with a concentration of 80% as the most effective.
Co-Authors Alifyah, Nabila Angga Ade Sahfitra Asmah Indrawati Asmah Indrawaty, Asmah Azwana Azwana Betty Saragih, Nur Butar-Butar, Alfons Dwi Putra Elinda, Friza Ellen Lumisar Panggabean Elli Afrida Emmanuel Halawa Erwin Pane, Erwin Frisky Purba Ginting, Rajiv Halawa, Emmanuel Haliatur Rahma, Haliatur Hasibuan, Sayyid Al-Fadhil Herliyani, Selvi Hutapea, Sumihar Ida Ayu Putu Sri Widnyani Ika Listiana Imam Alfazri Irfan Suliansyah Ivan Permana Putra Jamsari Jamsari Lilis Supratman Mada Triandala Sibero Manik, Prendy Jonringga Mariana, Merlyn Maulana, Bagus Merlan Manurung Meyuliana, Aulia Miranda, Cut Nyak Dara Mochammad Imron Awalludin Muhammad Aldy Napitupulu, Beatrix Sofranes Nasution, Lita Natalina Tarigan Nur Asyiah Dalimunthe Oktan Dwi Nurhayat Pandiangan, Indera Prabowo Panggabean, Ellen L. Parlindungan Sitepu, David Qohar, Adi Fathul Rahmiati Rahmiati Renfiyeni Retna Astuti Kuswardani Riyanto Riyanto Rizal Aziz, Rizal Rudy Hermawan Rudy Hermawan SAISA SAISA Saragih, Magdalena Saragih, Nur Betty Saragih, Ryan Sartini Sartini Sembiring, Riduan Sembiring, Swati SERI DEPI Sianturi, Parulian Sihombing, Roni Paulus Silaban, Sri Rejeki Siregar, Rahma Sari SITI MARDIANA Siti Mardiana Sitompul, Marco Y. F Suswati Suswati Suswati Tanjung, Denny Akbar Trizelia . Yabani, Yabani Yanty, Dini Puspita Yora, Muharama Yosafat Siregar Zulheri Noer