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E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)
Published by Universitas Udayana
ISSN : 23016515     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
E-Jurnal Agroekoteknologi Tropika (JAT) adalah peer-reviewed, open access jurnal, diterbitkan oleh Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana. JAT menerbitkan hasil peneitian original dan review artikel dalam bidang Ilmu tanah dan lingkungan, Agronomi, hama dan penyakit tumbuhan, dan arsitektur lanskap. Penulis diharapkan mengimkan karya tulisnya yang belum pernah dipublikasikan, sedang di-review atau sedang dipertimbangkan untuk diterbitkan di jurnal atau media lain secara lengkap. Ruang lingkup JAT mencangkup, tetapi tidak terbatas pada bidang berikut: kimia dan kesuburan tanah, biologi tanah, fisika dan konservasi tanah, manajemen suberdaya lahan, pengendalian hama dan penyakit terpadu, hama tanaman, penyakit tanaman, biopestisida, bioteknologi tumbuhan, agronomi dan hortikultura, benih dan pemuliaan tanaman, ekofisiologi, dan arsitektur lanskap.
Arjuna Subject : -
Articles 468 Documents
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Isolasi dan Identifikasi Bakteri Selulolitik pada Sampah Organik di TPA Suwung Denpasar FADEL ALKAHFI; WAYAN ADIARTAYASA; I GEDE PUTU WIRAWAN
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.2, April 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Isolation and Identification of Cellulolytic Bacteria in Organic Waste at TPA Suwung Denpasar Organic waste contains a lot of lignocellulosic material which can be degraded by cellulases. The degradation of cellulose requires three types of enzymes produced by microorganisms. Cellulolytic bacteria are one of the microorganisms involved in the decomposition process and produce cellulase enzymes which can degrade organic matter. This study aims to isolate and test the ability of cellulolytic bacteria in the organic waste of TPA Suwung Denpasar by isolating morphological identification, and quantitative cellulase test. The results of this study found twenty-seven (27) bacterial isolates that were able to grow on CMC media and were classified based on colony morphology and obtained 3 different isolate groups. The isolates that had been grouped were coded A, B, and C. The colony of the isolated isolates appeared to be round and wrinkled. Some surfaces are convex, raised, and hilly and are clear, yellows in color, and white. Isolates A and C were gram positive, while isolate B was gram negative. Based on the calculation results of the Cellulolytic Index value, it was found that isolate B had the highest IS and was in the high category.
Evaluasi Kesesuaian Lahan Untuk Tanaman Padi dan Palawija pada Lahan Sawah di Kecamatan Sawan Kabupaten Buleleng Berbasis Sistem Informasi Geografis MESI BR HALOHO; I NYOMAN DIBIA; NI MADE TRIGUNASIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.2, April 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Evaluation of Land Suitability for Paddy and Secondary Crops on Rice Fields in Sawan District, Buleleng Regency, Based on Geographical Information System This study aims to determine the actual and potential of land suitability, limiting factors, assumptions of improvement efforts, land use management, and making land suitability maps and land use direction maps for rice and secondary crops. The plants evaluated in this study included rice, soybeans, green beans, peanuts, and maize. This research was conducted in Sawan District, Buleleng Regency, from July 2020 to October 2020. Based on the intercropping of soil types map and the slope, seven homogeneous land units were obtained. The research method used was a land evaluation survey, analysis, and land suitability classification. It is based on the criteria for plant growth requirements, according to Ritung et al. (2011), which were matched to the quality/characteristics of the land. The results research show that the actual land suitability classes for rice and secondary crops are from S1 (very suitable) to S3 (suitable to marginal). The limiting factors in the research area include temperature, rainfall, dry months, humidity, drainage, texture, coarse materials, P2O5, K2O, and slopes. Improvement of land suitability classes can be carried out through several factors, except for temperature, humidity, coarse materials, surface rock, and rock outcrops because they are permanent limiting factors. Improvement efforts for limiting factors that can be improved are repairing the drainage system, fertilizing, adding organic matter, mulching, and making terraces. The potential land suitability classes for rice and secondary crops that are evacuated are from S1 (very suitable) to S3 (suitable marginal) with the limiting factors for temperature, rainfall, humidity, coarse material, surface rock, and rock outcrops. The recommendations for land use in SLH RCISw, RCKISw, LCKIISw, RCKIISw, and LCKIIISw are rice, soybeans, and green beans. RCKIIISw and RCKIVSw are soybeans, peanuts, and maize.
Analisis Fitokimia Ekstrak Bulung Boni (Caulerpa spp.) dan Uji Daya Hambatnya terhadap Fungi Fusarium moniliforme (Sacc.) Nirenberg VICKY TANDYA; I GEDE PUTU WIRAWAN; I KETUT SUADA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.2, April 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Phytochemical Analysis Of Bulung Boni Extract (Caulerpa spp.) and Its Inhibiting Ability Against Fusarium moniliforme (Sacc.) Nirenberg Seaweed is a marine biota that produces bioactive compounds which are useful for the development of the pharmaceutical industry. Caulerpa spp. is a green algae that is commonly consumed as vegetables or fresh vegetables by tropical communities, but the use of Caulerpa spp. in other fields is not optimal. The purpose of this study was to determine the content of antifungal compounds in the extract of Caulerpa spp. and antifungal activity against F. moniliforme. The research method used was Gas Chromatography and the diffusion well method with 14 treatments and 3 replications. The design used was completely randomized with ANOVA analysis followed by Duncan's test with a confidence level of 5%. The results showed that the ethanol is extract of Caulerpa spp. has antifungal compounds, namely alkaloids, saponins, and organic acids which indicated fungistatic effect. Ethanol extract of Caulerpa spp. had minimal antifungal activity (MIC) against F. moniliforme at a concentration of 0.6% with an inhibition zone diameter of 5 mm and was categorized as weak. The best extract concentration in inhibiting F. moniliforme in the treattested was a concentration of 5% with an inhibition zone diameter of 13.67 mm and a percentage was 54.54% colony inhibition.
Identifikasi Jamur Patogen Penyebab Penyakit Layu Pucuk pada Tanaman Adenium spp. di Kota Denpasar dan Potensi Pengendaliannya dengan Jamur Antagonis DWI SUGIARTA; I PUTU SUDIARTA; NI WAYAN SUNITI; I PUTU WIRYA SUPUTRA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.3, Juli 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Identification of Pathogenic Fungi that cause Wilting Diseases on Adenium spp. Shoot in Denpasar City and the Potential Control with Antagonistic Fungi Ornamental plants of Adenium, known as kamboja Jepang have various types of flowers and stem shapes and have become unique ornamental plants in Indonesia. Adenium plants that grow in Denpasar City showed the symptoms of pathogenic fungi like wilting on the shoots. This study aims to identify the pathogenic fungi that cause major diseases in Adenium spp. in the area of ??Denpasar City. The activities carried out in this study were (1) sampling, (2) isolation of the pathogenic fungi from symptomatic Adenium plant, (3) pathogenicity test, (4) morphological identification of pathogenic fungi, and (5) inhibition test of the antagonistic fungi against the pathogenic fungi. This research was conducted in Denpasar City and the Plant Disease Laboratory, Faculty of Agriculture, Udayana University. The results of this study were successful in identifying Fusarium sp. as a pathogen that causes wilting of the shoots or dieback. The potential for biological control by utilizing antagonistic fungi showed that Gliocladium sp. can suppress the growth of pathogenic fungi Fusarium sp. up to > 87% and Trichoderma sp. up to > 88 %.
The percentage of Bean Common Mosaic Virus (BCMV) carried by seeds and detection of virus position inside long beans (Vigna sinensis L.) seeds in Bali NI LUH PUTU CITRA INNOSENSIA; I GEDE RAI MAYA TEMAJA; I DEWA NYOMAN NYANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.3, Juli 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The percentage of Bean Common Mosaic Virus (BCMV) carried by seeds and detection of virus position inside long beans (Vigna sinensis L.) seeds in Bali Long bean (Vigna sinensis L.) is a horticulture crop with an essential economic value in Indonesia and Bali. Long beans productivity in Bali reached 6023 tons in 2013, and decreased to 5157 tons in 2014. Cases of disease that lowers the production of long beans in Bali were caused by Bean Common Mosaic Virus (BCMV) infection by 56.06%. BCMV can be brought by the seeds (seed-borne disease) and can infect long beans plants since the early stage of development. This research aims to evaluate the percentage of BCMV transmission by commercial long beans seeds, commonly used by farmers in Bali, and observe the location of BCMV inside the seeds. The morphological observation was used to evaluate the percentage of BCMV brought by the seeds by observing BCMV specific symptoms appear on two weeks old long beans seedlings. To observe the location of BCMV inside the long bean seeds, harvested seeds from an infected plant were separated to collect the cotyledon and embryo. The RT-PCR technique was used as a method in this research. The result showed the percentage of BCMV brought by long beans seeds used by farmers in Bali categorized as high. The percentage of BCMV brought by seeds from the highest to the lowest were; variety A 48.39%, variety B 46.66%, variety C 43.59%, variety D 37.83%, variety E 22.86%, and variety F 22.72%. The variation of the symptoms was mosaic vein banding, malformation, and dwarf plant with wrinkled leaves. The BCMV brought by long bean seeds was resides on the embryo.
Identifikasi Jamur Penyebab Penyakit Utama pada Tanaman Selada (Lactuca sativa L.) Hidroponik NI PUTU RATIH SUDIARTINI; GUSTI NGURAH ALIT SUSANTA WIRYA; I MADE SUDARMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.3, Juli 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Identification of the Fungal causal Agent of Main Diseases in Hydroponic Lettuce (Lactuca sativa L.) Hydroponics is an agricultural cultivation system without using soil but using water-containing nutrient solutions. Hydroponic technology is used as an alternative in plant cultivation to maintain optimal plant growth. It is completely protected from the influence of external elements such as rain, pests, climate, and others. One of the plants that are often cultivated in hydroponic technology is lettuce. However, in practice, hydroponic lettuce plants are also faced with the constraints of pathogenic fungi that cause disease in cultivated plants. This research was conducted to identify pathogenic fungi that cause disease in hydroponic lettuce plants. The results showed that the disease in hydroponic lettuce was a leaf spot disease caused by Cercospora sp. and wilt disease caused by Fusarium sp. Leaf spot disease is the main disease with a disease percentage of 41.90%.
Aplikasi Remote Sensing dan Sistem Informasi Geografis untuk Menunjang Database Lahan Pertanian Pangan Berkelanjutan di Subak Padanggalak FITRI CAHYANINGRUM; INDAYATI LANYA; NI MADE TRIGUNASIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.3, Juli 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Application of Remote Sensing and Geographic Information System for Support Database of Sustainable Food Agricultural Land in Subak Padanggalak Subak Padanggalak is highly recommended as Sustainable Food Agricultural Land (SFAL). According to Government Regulation No. 25/2012, the SFAL implementation needs to be equipped with a geospatial-based database. The research aims: compile a database for support SFAL in Subak Padanggalak, create a land ownership map of Subak Padanggalak, create a geospatial-based SFAL information system, and land ownership of Subak Padanggalak. This research uses survey and mapping methods. Results from secondary data: Typic tropaquepts, volcanic plains, micro slopes 0-3%, climate 1.500-2.000 mm/year, high soil fertility, potential land suitability for paddy is very suitable (S1), horticulture crops are moderately suitable (S2t) with temperature limiting factor. Results from primary data: (a) artificial resources: irrigation 16.236 m long, 1 m wide, good quality, semitechnical irrigation, jogging track 1.646 m long, 1,5 m wide, good quality, water source from Tukad Ayung, (b) agricultural resources: paddy, 7 ton/acre, paddy-paddy-paddy, Urea, and Phonska 175 kg/acre each, (c) human resources: mostly live in Kesiman Kertalangu, mostly primary school, farmers aged 35-80 years. The farmers status: 93 owner farmers (54,4%) and 78 sharecroppers (45,6%). The land ownership status: 330 freehold polygons (95.7%) and 15 non-freehold polygons (4.3%). Landowners amounted to 237 people, with the average of ownership is 0,43 acres/people.
Aplikasi Sistem Informasi Geografis dan Penginderaan Jauh untuk Kajian Potensi dan Kerawanan Longsor di Daerah Aliran Sungai Tukad Buleleng, Kabupaten Buleleng WINDA ARDY DWIASTUTI; WIYANTI WIYANTI; I WAYAN DIARA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.3, Juli 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Application of Geographic Information Systems and Remote Sensing for The Study of Landslide Potential and Susceptibility in Tukad Buleleng Watershed, Buleleng Regency Landslides are a ground movement event that descends the slopes and is almost found in every major watershed upstream, due to steep topography and high rainfall. Tukad Buleleng watershed is one of the watersheds with a stretch of rolling land and hills so that it has the potential for landslides. This experiment was been conducted from January to Agust 2020. The aims off this research were to find out the potential lanslide and the level susceptibility to landslide. The method used to determine the potential for landslides was a scoring method referring to PSBA UGM (2001) by overlapping the parameters of the causes of landslides were rainfall, slope, land use, soil types, structural of geology, and landforms maps. Landslide-prone areas were obtained by overlapping landslide potential map, road network map and residential area map. The results showed that the potential landslide in Tukad Buleleng watershed had many categories from not potentially up to high potential. The area had no potential of landslide were widespread in the downstream watershed covering an area of 1,733.94 ha 51.61%, low potential category of 165.08 ha 4,91%, the medium potential category of 77.24 ha 2,32%, and high potential category spread over the upstream part of the watershed of 1,382.87 ha 41,16%. The distribution of susceptibility was seen from administrative boundaries, Sukasada administration area that covered Wanagiri, Pegayaman, Gitgit, and Padangbulia villages.
Halaman Depan JAT Vol. 10, No. 3, Juli 2021 Pengelola JAT
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.3, Juli 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Halaman Depan JAT Vol. 10, No. 3, Juli 2021
Analisis Kondisi Daerah Resapan Air Kecamatan Sukasada Kabupaten Buleleng Menggunakan Sistem Informasi Geografis NURLELY LAMPITA PANDIANGAN; I WAYAN DIARA; TATI BUDI KUSMIYARTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.3, Juli 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Analysis of Watersheds Condition in Sukasada District, Buleleng Regency Using Geographic Information System Water catchment areas are areas where water is released into the soil. The research area has various determinants of water absorption conditions to allow the conditions of the water catchment area to vary. This study aims to determine the state of the water catchment area in Sukasada District and draw up a map of the water catchment area in Suksada District. This research was conducted from July 2020 to October 2020. The method used in this study was the evaluation and overlay using the Geographical Information System. The required parameters are soil type, land use, slope, and precipitation. The results showed that the status classes of the catchment areas were good, naturally normal, critical, somewhat critical, and very critical. The water infiltration status in the study area was dominated by the natural normal class with 3,972 ha (32%), followed by very critical classes with 3,906 ha (24%), more good classes with 3,584 ha (21%), the critical class with 2,165 ha (13%) and the smallest, the somewhat critical class with 1.808 ha (10%).

Page 39 of 47 | Total Record : 468

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