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Ridawati Marpaung
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PERTUMBUHAN STUMP OKULASI MATA TIDUR KARET (Hevea brasiliensis Muell Arg.) SETELAH MENGALAMI PENYIMPANAN PADA MEDIA SABUT KELAPA Marpaung, Ridawati
Jurnal Media Pertanian Vol 2, No 2 (2017): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.178 KB) | DOI: 10.33087/jagro.v2i2.37

Abstract

This study aimed to determine the growth eye stump of rubber after laying away in coconut fiber media. The design of this study was Completely Randomized Design with laying duration in coconut fiber medium (P) as a treatment which consisting of 7 treatment levels e.g. P0: 0 day; P1:5 days; P2:10 days, P3:15 days; P4:20 days, P5: 25 days, and P6: 30 days storage. The result of this research showed that the growth of eye stump rubber after laying away on the coconut fiber medium was significantly influence the percentage of several parameters e.g. :starting of stump sprout, sprout height during storage, plant height, stem diameter, leaf number and leaf area total for each treatment except for the parameter percentage of eye stump rubber which not active yet.  The freshness and the seedling viability of rubber plant originating from the eye stump rubber after laying away for 0-30 days in coconut fiber can be maintained. The highest growth was observed in the 20 to 30 days of laying away.Keywords: stump sleeping eye grafting, storage, coconut huskPenelitian ini bertujuan untuk mengetahui pertumbuhan stum okulasi mata tidur Karet (Hevea brasiliensis Muell Arg.) setelah mengalami  penyimpanan pada media sabut kelapa.  Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan perlakuan percobaan lama penyimpanan stum okulasi mata tidur dalam  media sabut kelapa (P) yang terdiri dari 7 taraf perlakuan yaitu penyimpanan:P0: 0 hari; P1:5 hari ; P2:10 hari, P3: 15 hari ; P4: 20 hari, P5: 25 hari, dan P6: penyimpanan 30 hari. Hasil penelitian menunjukkan bahwa pertumbuhan stum okulasi mata tidur karet (Hevea brasiliensis Muell Arg.) setelah mengalami penyimpanan pada media sabut kelapa berpengaruh nyata terhadap peubah persentase stum okulasi mulai bertunas, tinggi tunas selama penyimpanan, tinggi tanaman, diameter batang, jumlah daun dan luas daun total untuk setiap perlakuan kecuali pada peubah persentase stum okulasi mata tidur yang belum aktif tumbuh. Kesegaran dan daya tumbuh bibit tanaman karet yang berasal dari stum mata tidur setelah disimpan selama 0–30 hari dalam media sabut kelapa dapat dipertahankan. Pertumbuhan tertinggi untuk setiap peubah yang diamati terdapat pada lama penyimpanan 20 hingga 30 hari.Kata kunci : stump okulasi mata tidur, penyimpanan, sabut kelapa 
Karakteristik Kimia dan Mutu Organoleptik Seduhan Bubuk Kopi Liberika Pada Berbagai Metode Fermentasi dan Lama Penyangraian Biji Marpaung, Ridawati; Nasamsir, Nasamsir; Ramadhani, Aleks
Jurnal Media Pertanian Vol 10, No 2 (2025): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v10i2.290

Abstract

The quality of Liberica coffee powder brew is influenced by the fermentation and roasting processes of coffee beans. This study aims to determine the effect of the interaction of fermentation methods and roasting duration of Liberica coffee beans on the chemical characteristics and organoleptic quality of the brew. This study was conducted in Sungai Aji, Sungai Terap Village, Betara Subdistrict, Tanjung Jabung Barat Regency (harvesting, sorting, pulping, drying, hulling, and drying), while roasting, grinding, sieving, testing the pH of ground coffee, and the organoleptic quality of ground coffee brew were carried out at the Basic Laboratory of the Faculty of Agriculture, Batanghari University, from March to August 2025.This study used a factorial completely randomized design (CRD). The first factor is the fermentation method (f) consisting of 3 levels, f0 = without fermentation; f1 = dry fermentation and f2 = wet fermentation. The second factor is the roasting duration (p), consisting of 2 levels including p1 = 20 minutes and p2 = 30 minutes. The variables observed were pH, color, aroma, taste, bitterness and preference of the brew. Data were analyzed using analysis of variance and continued with the DNMRT test at α level of 5%. The results showed no significant interaction between the fermentation method and roasting duration on pH, color, aroma and bitterness of the coffee powder brew but there was a significant interaction on the parameters of taste and preference of the coffee powder brew. The fermentation method treatment had no significant effect on the pH, color, aroma, and bitterness parameters of the brewed coffee grounds. The roasting time treatment significantly affected the pH, color, aroma, and bitterness parameters of the brewed coffee grounds. The panelists' organoleptic test results showed the highest color scores for treatments f2 (3.35) and p2 (3.53), the highest aroma scores for treatments f0 (3.55) and p2 (3.68), the highest preference score for the combination of treatments f2p2 (4.03), the highest bitterness scores for treatments f0 (3.33) and p2 (3.59), and the highest preference impression for the brewed coffee grounds using the dry fermentation method and a roasting time of 130 minutes (f2p2) with a value of 14.16.
Pertumbuhan Bibit Pinang (Areca catechu L.) Dengan Pemberian Kombinasi Pupuk Kandang Kambing Dan NPK Pada Tanah Ultisol Di Polybag Hayata, Hayata; Marpaung, Ridawati; Ilham, Febil Nugraha
Jurnal Media Pertanian Vol 10, No 2 (2025): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v10i2.294

Abstract

Cultivating areca nut plants on ultisol soil requires organic and inorganic fertilizers addition to ensure optimal growth. This study aimed to determine the growth of areca nut seedlings using goat manure and NPK fertilizer in polybag of ultisol soil. This research was conducted at Jl. Sebapo, Mestong District, Muaro Jambi Regency, from September to December 2024. The materials used in this experiment were 3-month-old areca nut seedlings from Tri's nursery, ultisol soil, NPK 16:16:16 fertilizer, organic goat manure from Green Exotic Farm Tambak Sari, 4 kg polybags, and water. The tools used are vernier calipers, leaf color charts, hoes, meters/rulers, machetes, scales, stationery, buckets, measuring cups and ovens. The design used in this study was a completely randomized design (CRD) with one factor, namely a combination of goat manure and NPK fertilizer 16:16:16 with 6 levels, namely, k0: Without giving NPK fertilizer and goat manure k1: NPK fertilizer 10 g (100%), k2: Goat manure 30 g (100%), k3: Goat manure 22.5 g (75%) and NPK 2.5 g (25%), k4: Goat manure 15 g (50%) and NPK 5 g (50%), k5: Goat manure 7.5 g (25%) and NPK 7.5 g (75%). This experiment consisted of three replications, each with three sample plants. The application of goat manure and NPK fertilizer to ultisol soil significantly affected plant height, stem diameter, crown dry weight, and leaf color.However, it had no significant effect on the dry weight of the roots and the ratio of the root crown. The application of goat manure and NPK fertilizer in the k4 treatment (15 g goat manure and 5 g NPK/polybag) gave the highest average results in the parameters of plant height (67.54 cm) increased by 21%, stem diameter (16.52 mm) increased by 27% and dry weight of the crown (12.03 g) increased by 44% when compared to no treatment (k0). Keywords: areca nut plants, goat manure, NPK fertilizer, ultisol soil
Viabilitas dan Vigor Bibit Seraiwangi (Andropogon nardus L.) setelah Perlakuan Penyimpanan Nengsih, Yulistiati; Marpaung, Ridawati; Andriyani, Lizyanti; Septiana, Aisyah
Jurnal Media Pertanian Vol 10, No 2 (2025): Oktober
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v10i2.289

Abstract

The deterioration process in seeds cannot be prevented. One effort to reduce the rate of deterioration is to optimize storage conditions and the appropriate storage period. Optimal storage conditions and the appropriate storage period can maintain seed quality during storage and growth after storage. The study aimed to obtain data on the rate of seed deterioration and growth of citronella plants after storage. The study was conducted from April to August 2025 in the basic laboratory and experimental garden of the Faculty of Agriculture, Batanghari University. The study used a completely randomized design with one factor. The treatment design was the storage duration (h, days) of citronella seeds as follows: h0 = not stored, h1 = 4, h2 = 8, h3 = 12, and h4 = 16 days. Each treatment was repeated 3 times, resulting in 15 experimental plots. Each experimental plot contained 10 seeds, resulting in 150 citronella plant seeds. Observations during storage were the percentage of fresh seeds and the percentage of growing seeds. Observations after storage were plant height, rate of emergence of tillers, number of tillers, clump circumference, fresh weight of herb, and fresh weight of roots. The observation data were analyzed using analysis of variance. If there was a significant effect, it was continued with Duncan's Advanced Test at α level of 5%. Based on the research and data analysis, it can be concluded that the treatment of the duration of storage of citronella seeds had a significant effect on clump circumference, but had no significant effect on plant height, rate of emergence of tillers, number of tillers, fresh weight of herb and fresh weight of roots. The longer the citronella seeds were stored, the growth rate tended to decrease. This is caused by a decrease in seed viability due to the aging process, dehydration, or physiological damage during storage.
Percentage And Intensity Of Stick Cancer (Phythotora Palmivora. Butler) On Cocoa Plants (Theobroma Cacao) And Its Influence On Dry Cocoa Bean Production (Kg) Defitri, Yuza; Marpaung, Ridawati; Reza, Ahmad
International Journal of Multidisciplinary Sciences and Arts Vol. 3 No. 2 (2024): International Journal of Multidisciplinary Sciences and Arts, Article April 202
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ijmdsa.v3i1.3604

Abstract

This study aims to determine the intensity and percentage of P. palmivora stem canker disease and identify the types of disease that occur on cocoa plant stems (Theobroma cacao) as well as the influence of the intensity and incidence of stem canker on stem canker disease. production of cocoa beans (T. cacao). The method used in this research is the observation method, the procedure for determining the research location was carried out by means of purposive sampling. The results of the research showed that the sample plants that were attacked by stem cancer showed symptoms of attack such as brown, purplish red stems, no holes, wet skin texture and black spots like rot. The highest percentage of stem cancer attacks was on plantation 3 at 37.78% and the lowest percentage of stem cancer attacks was on plantation 1 at 11.11%. The highest intensity of stem cancer attacks was on plantation 3 at 17.33% and the lowest intensity of stem cancer attacks was on plantation 1 (maintained) with an attack percentage of 6.39%. The results of observations on cocoa plant stem samples found a type of disease belonging to the Phytophthora palmivora fungus group at research locations 1, 2 and 3.
Karakteristik Kimia dan Kualitas Organoleptik Cokelat Pasta Dengan Suhu Penyangraian Yang Berbeda Menggunakan Alat Coffee Roasting Marpaung, Ridawati; Hartawan, Rudi; Lesinde Simatupang, Oliviandra Afrianda
Jurnal Media Pertanian Vol 9, No 1 (2024): April
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v9i1.229

Abstract

The aims of this research were to determine the chemical characteristics and organoleptic quality of chocolate paste with different roasting temperatures using a coffee roasting tool. The environmental design used in this study was a Completely Randomized Design Treatment design, namely different roasting temperatures, with 4 roasting temperature levels, as follows: t1 (130oC) ; t2 (140oC); t3 (150oC );  and t4 (160oC). The duration of roasting was carried out for 30 minutes. Each treatment was repeated 3 times so that there were 12 experimental units. The variables observed in this study were chemical characteristics including water content dry cocoa beans, acidity (pH) and fat content of roasted cocoa beans, while the organoleptic qualities observed were: color, aroma, taste, bitterness, and preference for chocolate paste. The The results showed that: different roasting temperatures have a significant effect on the fat content of the roasted cocoa beans, but are not significantly different on the pH of the roasted cocoa beans : color, aroma, taste, bitterness and preference for chocolate paste. The sensory test showed that panelists  preferred aroma, preferred taste, level of bitterness was slightly bitter and level of preference was liked were 130oC-160oC.
Pengaruh Lama Penyangraian Terhadap Karateristik Kimia dan Mutu Organoleptik Pasta Cokelat Prasetyo, Muhammad Dwi; nengsih, yulistiati; Marpaung, Ridawati; Andriyani, Lizyanti
Jurnal Media Pertanian Vol 9, No 1 (2024): April
Publisher : Universitas Batanghari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jagro.v9i1.230

Abstract

Roasting is a very important post-harvest stage in processing cocoa beans into derivative products because this roasting process will produce the characteristic color, aroma, taste and texture of the cocoa beans. The research was carried out from February to March 2023 at the Basic Laboratory of Batanghari University, Jambi. The study used a completely randomized environmental design. The treatment design is roasting time with 4 levels as follows: P1: 20 minutes, P2: 30 minutes, P3: 40 minutes, P4: 50 minutes. The variables observed were the moisture content of the dry cocoa beans, the color of the chocolate paste, the aroma of the chocolate paste, the taste of the chocolate paste, the liking of the chocolate paste, the bitterness of the chocolate paste. Organoleptic testing of color, aroma, taste, brownness and liking variables was carried out using a perception test with a 5-scale Likert scale. The data was tabulated, followed by analysis of variance, then continued with the DMRT test at the α level of 5%. Based on the results of the research and discussion, it can be concluded that different roasting times have no significant effect on the acidity (pH) of roasted cocoa beans, color, aroma, taste, bitterness and liking of chocolate paste. Roasting time of 20 minutes produces chocolate paste with a brown color, a favorable aroma, a favorable taste, a slightly bitter bitterness level and a favorable level of liking. 
MENINGKATKAN POLA PANGAN HARAPAN MASYARAKAT DESA BETUNG MELALUI PEMBERDAYAAN MASYARAKAT Nengsih, Yulistiati; Hartawan, Rudi; Marpaung, Ridawati
Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Vol. 3 No. 1 (2019)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jss.v3i1.107

Abstract

Pola konsumsi pangan desa-desa di Muaro Jambi terdapat ketimpangan.Pemanfaatan sumber pangan lokal seperti umbi, jagung dan sayuran masih rendah.Pengembangan konsep rumah pangan lestari di Desa Betung perlu dilakukan. Beberapa permasalahan hasil identifikasi awal yang menyebabkan rendahnya pemanfaatan sumber daya lokal dan sayuran oleh ibu-ibu rumah tangga di Desa Betung adalah: Dasa Wisma dan Kelompok wanita Tani (KWT) tidak akrif, tidak ada pemanfaatan pekarangan, dan nilai pola pangan harapan (PPH) yang rendah. Tujuan yang ingin dicapai dalam kegiatan pengabdian kepada masyarakat ini adalah masyarakat aktif melaksanakan konsep RPL, mengurangi pengeluaran rumah tangga, dan meningkatkan skor PPH. Kegiatan pengabdian kepada masyarakat dilaksanakan di RT 06 dan RT 07 Desa Betung. Organisasi masyarakat yang menjadi target adalah kelompok Dasa Wisma dan KWT. Pelaksanaan pengabdian pada Bulan Januari sampai Oktober 2018. Kegiatan pemberdayaan masyarakat berupa: pengaktifan kembali Dasa Wisma dan KWT, pembuatan Kebun Bibit Desa, Kebun Demplot, Rumah Kompos, dan Rumah Pangan Lestari. Kegiatan pemberdayaan dievaluasi untuk mengetahui dampak ekonomi, nilai PPH, dan persepsi kooperator terhadap kegiatan yang dilaksanakan. Selama masa pengabdian, masyarakat aktif mengikuti penyuluhan dan diskusi serta kegiatan yang dilaksanakan. Hasil evaluasi menunjukkan bahwa terjadi penghematan pengeluaran rumah tangga sebesar Rp. 150.000 sampai Rp. 200.000, peningkatan nilai PPH dari 78,5 menjadi 82,09, serta persepsi yang sangat setuju terhadap kegiatan pengabdian yang dilaksanakan.
Co-Authors ., Alkori ., Nasamsir Ahmad Reza Al Fajri Suriyansah Andriyani, Lizyanti Annisa Berliana Putri Asmaida . BIMA BIMA, BIMA Fachrory Dinata Fani Agustin Hayata Hayata, Hayata Ilham, Febil Nugraha Khairul Purba Kocu Arianto Lesinde Simatupang, Oliviandra Afrianda Lutvia Lutvia Manurung, Rosliana Nasamsir Nasamsir Prasetyo, Muhammad Dwi Ramadhani, Aleks Reza, Ahmad Rudi Hartawan Sandora, Amelia Septiana, Aisyah Siti Nurlina Putri Vionita, Diny Yulistiati Nengsih Yuni Putri Ayu Yuza Defitri Yuza Defitri, Yuza