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All Journal Seminar Nasional Lahan Suboptimal SRIWIJAYA JOURNAL OF ENVIRONMENT Lokawati: Jurnal Penelitian Manajemen dan Inovasi Riset
Rahmat Pratama
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Environmental Science Public Health Other

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Diversity and Kinship of the Swamp Buffalo (Bubalus bubalis) from Pampangan South Sumatra Based On Morphological Characteristics Yuanita Windusari; Laila Hanum; Rahmat Pratama
Sriwijaya Journal of Environment Vol 1, No 3 (2016): Biodiversity
Publisher : Program Pascasarjana Universitas Sriwijaya

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Abstract

Abstract: Previous studies have found four variant of swamp buffalo in the region of Pampangan based on the characteristics of habitats and morphology namely black buffalo, red,belang, and Lampung. Hence done observation to know the diversity and the kinship relation based on morphological characteristics. A method of on farm was done to data characterization and morphology. Data was analyzed using NTSys ver.2.1 and presented in dendrogram. Cluster analysis done with un-weighted pair-grup method with arithmetic averaging (UPGMA) with a coefficient similarities. The results show that morphology between variant buffalo that in eye color, the color of body, body size, or shapes and sizes horns. Buffalo belang having a dark eyes, the body white ribbed and light. Buffalo black having a black eyes and black body. Buffalo red having a red eyes, the body a red light colored (blonde). Buffalo Lampung allegedly is introduce from Lampung area, adapt and married with a local buffalo. The red buffalo having red eyes, like a black buffalo but shorter size with curved horns the way down. The results of the analysis kinship based on morphological characteristics show buffalo black and buffalo Lampung allegedly came from a single characterized by value a correlation coefficient of 0,85. Inbreeding and adaptation factors believed to cause different the phenotype and morphology. Buffalo  red having scarlet kinship the lowest is as much as 0,57 and predicted to have an ancestor different. Based on these results can be expressed variant swamp buffalo of regional Pampangan tending to low and the difference in the phenotype of influenced inbreeding and adaptation to the environmentKeywords: diversity, kinship, swamp buffalo (Bubalus bubalis), morphological characteristics, Pampangan South SumatraAbstrak : Berdasarkan karakteristik habitat dan pengamatan terhadap morfologi telah ditemukan empat varian kerbau rawa di wilayah Pampangan yaitu kerbau hitam, merah, belang, dan Lampung.  Untuk mengetahui keanekaragaman dan hubungan kekerabatan antar varian kerbau dilakukan penelitian ini. Pengamatam lapangan ditujukan untuk memperoleh data mengenai karakterisasi dan morfologi. Data dianalisis menggunakan NTSYS Ver.2.1 dan disajikan dalam bentuk dendrogram. Analisis kluster menggunakan metode Unweighted pair-grup method with arithmetic averaging (UPGMA) untuk mendapatkan koefisien similaritas. Hasil  menunjukkan perbedaan morfologi antar varian kerbau terlihat pada warna mata, warna tubuh, ukuran tubuh, serta bentuk dan ukuran tanduk.  Kerbau rawa belang memiliki mata gelap, tubuh bergaris putih dan ukuran tubuh kecil; kerbau hitam memiliki mata hitam dan warna kulit hitam;  kerbau mata merah memiliki mata berwarna tubuh lebih terang (warna bulu pirang); sedangkan kerbau Lampung diduga berasal dari daerah Lampung, yang beradaptasi dan kawin dengan kerbau lokal. Kerbau merah memiliki mata berwarna merah, memiliki tanduk yang lebih pendek dan melengkung ke bawah. Hasil analisis terhadap kekerabatan antar varian kerbau rawa diketahui bahwa kerbau hitam dan kerbau Lampung diperkirakan berasal dari satu induk dengan nilai koefisien korelasi sebesar 0,85. Inbreeding dan adaptasi diyakini menjadi faktor munculnya beberapa fenotip dan morfologi. Nilai kekerabatan terendah sebesar 0,57 ditemukan pada varian kerbau merah dan diperkirakan berasal dari nenek moyang berbeda. Berdasarkan hasil tersebut disimpulkan bahwa keragaman genetik dari kerbau rawa yang berasal dari daerah  Pampangan relatif rendah dan perbedaan fenotip lebih dipengaruhi oleh inbreeding dan adaptasi lingkungan.Kata kunci: keragaman, kekerabatan, kerbau rawa (Bubalus bubalis), karakteristik morfologi, Pampangan Sumatera Selatan
Pengaruh Kualitas Pelayanan dan Kualitas Produk terhadap Kepuasan Konsumen pada Supermarket Super Indo Kenjeran Surabaya Rahmat Pratama; Iswati Iswati
Lokawati : Jurnal Penelitian Manajemen dan Inovasi Riset Vol. 2 No. 5 (2024): September : Lokawati : Jurnal Penelitian Manajemen dan Inovasi Riset
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/lokawati.v2i5.1199

Abstract

In the era of globalization and advances in information technology, business competition in various sectors is getting tighter, including in retail industries such as supermarkets. Supermarkets are not only a place to meet daily needs, but also become part of the busy lifestyle of urban people. In this context, the quality of services and products offered by a supermarket has a very important role in maintaining and increasing market share and customer satisfaction. The survey was conducted both directly in the Super Indo Kenjeran Supermarket area and online through an online survey platform. The survey design used is a cross-sectional survey, where data is collected at one particular point in time to measure the relationship between the variables studied. In this context, research on the effect of service quality and product quality on customer satisfaction at PT. Lion Super Indo Kenjeran becomes relevant and important to do. With a better understanding of the factors that affect customer satisfaction, PT. Lion Super Indo Kenjeran can identify areas that need improvement and design more effective strategies in maintaining and increasing customer loyalty. Lion Super Indo as one of the leading supermarkets in Indonesia, with a long history and strong reputation, certainly does not escape from increasingly fierce business competition. Therefore, a deep understanding of the factors that affect customer satisfaction is a strategic key in maintaining the existence and developing the business of PT. Lion Super Indo.
Intensitas dan Insidensi Serangan Penyakit Layu Bakteri (Ralstonia solanacearum) pada Eukaliptus di Kabupaten Ogan Komering Ilir Sumatera Selatan Dhanillo Djulian; Ahmad Muslim; Rahmat Pratama; Ahmad Naufal Al Gibran; M Alvin Yudistira; Hafizhah Ega Yonitha; Riska Mutia Pangestu; Rahma Putri
Seminar Nasional Lahan Suboptimal Vol 12, No 1 (2024): Prosiding Seminar Nasional Lahan Suboptimal ke-12 "Revitalisasi Lahan Suboptima
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Djulian D., Muslim A., Pratama, R., Gibran, A. N. A., Yudistira, M. A., Yonitha, H. E., Pangestu, R. M., Putri, R. (2024). Intensity and incidence of bacterial wilt disease (Ralstonia solanacearum) on eucalyptus in Ogan Komering Ilir District, South Sumatera. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembang 21 Oktober 2024. (pp. 446–460). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Ralstonia solanacearum is a disease that attacks eucalyptus plants which is usually characterized by symptoms of wilting in the tops of leaves and young twigs which will then cause tissue death in plants. Therefore, the purpose of this study was to determine the intensity and incidence of bacterial wilt disease in PT Bumi Andalas Permai Ogan Komering Ilir. With the method of observing directly by surveying eucalyptus at PT Bumi Andalas Permai in Ogan Komering Ilir Regency, South Sumatra. The survey was conducted by taking samples of plants affected by disease in the field. Sampling method with Transect method. Samples were taken as many as 30 samples measuring 5x5 mm, ooze that was in the sample was taken and then isolated with NA media. Based on research on eucalyptus plants at PT Bumi Andalas Permai, it was found that plants of the EP4136AA clone type in the Air Sugihan district with a plant age of 10 months and a plant spacing of 1.87m per plant and in the Jeletung district with the same clone and a plant age of 11 months and a plant spacing of 1.87m had susceptibility to Ralstonia solanacearum bacterial wilt disease attack. In contrast, clones EP6098, EP0077, and EP0361 in PT Bumi Andalas Permai in Ogan Komering Ilir District are resistant to Ralstonia solanacearum disease. Attacks in both districts show different levels of intensity and incidence, in the Air Sugihan district the intensity is up to (6.063%) and the incidence is up to (16.50%) and the intensity in the Jelutung district is up to (16.688%) and the incidence is up to (17.25%). So the conclusion of this study found that eucalyptus plants attacked by bacterial wilt disease at PT Bumi Andalas Permai have intensity and incidence that fall into the heavy or high category.
Hubungan Tingkat Pendidikan Petani terhadap Serangan Hama dan Penyakit pada Budidaya Tanaman di Sumatera Selatan Arsi Arsi; Rahmat Pratama; Fikri Adriansyah; Harman Hamidson; Titi Tricahyati; Suparman Suparman; Rama Doni; Rama Dona; Muhardianto Cahya; Rinaldi Fahril Izzati; Rian Saputra; Gita Trianda; Lidya Dwi Wahyudi; Putri Barokah
Seminar Nasional Lahan Suboptimal Vol 12, No 1 (2024): Prosiding Seminar Nasional Lahan Suboptimal ke-12 "Revitalisasi Lahan Suboptima
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Arsi, A., Pratama, R., Adriansyah, F., Hamidson, H., Tricahyati, T., Suparman, S., Doni, R., Dona, R., Rinaldi Fahril Izzati, Rian Saputra, Gita Trianda, Lidya Dwi Wahyudi, Putri Barokah. (2024). The relationship of farmers' education level to pest and disease attacks in plant cultivation in South Sumatra. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembang  21 Oktober 2024. (pp. 787–798).  Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The aimed of this research was to determine the behavior and understanding of farmers in using pesticides based on educational background. Pesticide is a poisonous chemical which is able to ruin human and animal health and also pollute the environment. The use of pesticide has to consider five properness i. e. proper target, proper active ingredient, proper time, proper dosage/concentration and proper equipment. Knowledge is one of factors affecting people behavior, including behavior in pesticide application. The less knowledge of farmers in pesticide application made them use too much pesticide which might cause degradation of environment and pesticide residue in agricultural products which is dangerous to consumers. Method applied in the study was an interview method using questionnaire to 180 farmers, followed by field observation in their field. 57% of respondents had Elementary School background, 20% had Junior High Scholl background, 23% had Senior High School background and one of them had university education background. The average score of pesticide use was 1,92 from farmers who graduated from bachelor, then the pesticide score of farmers who graduated from elementry school, junior high school, and high school had the same pesticide score of 2,39 and all education is categorized as good in using pesticides. The pesticide application score did not correlate with the presence of pest in the field but significanly correlate with the prsence of plant diseases. The highest plant disease intensity (26.55) was found in the farms belonged to farmers with elementary school backfround, while the lowest (6.61) was found in the field of farmer with university educational background.  
Budidaya Jamur Tiram Putih (Pleurotus ostreatus) di Desa Payakabung, Kecamatan Indralaya Utara, Kabupaten Ogan Ilir, Provinsi Sumatera Selatan Rafael Ika Rahayu; Rahmat Pratama; Abu Umayah; M. Ramadhan Saputra; Destian Jo Andreansya; Ela Aisyah Billah; Kharisma Ayu Saputri; Selvi Yulia Ningsi
Seminar Nasional Lahan Suboptimal Vol 12, No 1 (2024): Prosiding Seminar Nasional Lahan Suboptimal ke-12 "Revitalisasi Lahan Suboptima
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Rahayu, R. I., Pratama, R., Umayah, A., Saputra, M. R., Andreansya, D, J., Billah, E, A., Saputri, K., A. & Ningsi, S. Y. (2024). Cultivation of white oyster mushroom (Pleurotus ostreatus) in Payakabung Village, North Indralaya District, Ogan Ilir Regency, South Sumatera Province. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembang 21 Oktober 2024. (pp. 720–730).  Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).White Oyster Mushroom (Pleurotus ostreatus) is a unique mushroom with a high market price, although the cultivation of white oyster mushrooms has become one of the agricultural product development efforts in Indonesia. The purpose of this research was to find out what ingredients are really and how they affect the cultivation of white oyster mushrooms, as well as their development in the blog. White oyster mushrooms have a very high value in food production and cultivation. The use of baglogs is one of our studies in the development of white mushrooms. One important factor in harvesting high quality mushrooms is the durability and quality of the mushrooms themselves. The more optimal the harvesting method, the better the durability and quality of the picked mushrooms. Conclusions are based on the results obtained, taking into account the formulation of the problem and the objectives of the study. The stages of Mr. Eko Supandi's white oyster mushroom cultivation process are making a barn, preparing and making seedlings, making planting media or baglogs which consist of several stages, namely preparation of planting media, mixing ingredients and composting, packaging media, pasteurization, the next stage of seedling inoculation, incubation of seedlings for 40-60 days, baglog maintenance, harvesting and post-harvest.
Prevalensi dan Keparahan Penyakit Bercak Daun Cercospora spp. pada Tanaman Cabai Rawit (Capsicum annuum L) Rahmad Fadli; Rafi Andika Aji Saputra; Nurhayati Nurhayati; Rahmat Pratama
Seminar Nasional Lahan Suboptimal Vol 13, No 1 (2025): Prosiding Seminar Nasional Lahan Suboptimal ke-13 "Optimalisasi Lahan Suboptima
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Fadli, R., Saputra, R. A. A., Nurhayati, N., & Pratama, R. (2025). Prevalence and Severity of Cercospora spp. Leaf Spot Disease in Pepper Plants (Capsicum annuum L.). In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-13 Tahun 2025, Palembang  20 Oktober 2025. (pp. x–y).  Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Leaf spot disease on chili plants (Capsicum annuum L.) is a significant factor contributing to reduced chili productivity in Indonesia.  This plant disease, caused by the fungus Cercospora spp., diminishes both yield and the quality of the fruit produced.  The tropical environment, characterized by elevated rainfall and humidity, facilitates the proliferation and dissemination of diseases in agricultural settings. This study aimed to ascertain the prevalence and severity of leaf spot disease in field-cultivated cayenne pepper crops.  Observations were conducted on 45 sample plants for a duration of six weeks post-planting.  Microscopic and macroscopic identification was conducted to corroborate the observation results, utilizing the distinctive morphological characteristics of chili leaves to confirm the presence of the fungus Cercospora sp.  The research findings indicated that leaf spot symptoms emerged in the second week post-planting, characterized by small, round, dark brown spots.  The peak assault intensity reached 4.54%, while the minimum was 0.68% during the sixth week of observation.  The peak disease severity was seen in the sixth week post-planting, reaching 18.36%, while the minimum recorded was 2.78%.  The progression of Cercospora leaf spot disease exhibited an upward trajectory from the early to the reproductive phase.  This study substantiates that the prevalence and severity of the disease remain significantly elevated in chili cultivation regions, necessitating comprehensive focus on disease control in the field.
Co-Authors Abu Umayah Ahmad Muslim Ahmad Naufal Al Gibran Arsi Arsi Destian Jo Andreansya Dhanillo Djulian Ela Aisyah Billah Fikri Adriansyah Gita Trianda Hafizhah Ega Yonitha Harman Hamidson Iswati Iswati Kharisma Ayu Saputri Laila Hanum Lidya Dwi Wahyudi M Alvin Yudistira M. Ramadhan Saputra Muhardianto Cahya Nurhayati Nurhayati Putri Barokah Rafael Ika Rahayu Rafi Andika Aji Saputra Rahma Putri Rahmad Fadli Rama Dona Rama Doni rian saputra Rinaldi Fahril Izzati Riska Mutia Pangestu Selvi Yulia Ningsi suparman suparman Titi Tricahyati Yuanita Windusari