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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 Uji Degradasi Bakteri Selulolitik dari Sampah Organik di TPST-3R Kertalangu dan TPST-3R Nangun Resik terhadap Bunga Jepun Bali MAHARDHIKA DWI PUTRA WIJAYA; WAYAN ADIARTAYASA; I NYOMAN WIJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Isolation and Degradation Test of Cellulolytic Bacteria from Organic Waste at TPST-3R Kertalangu and TPST-3R Nangun Resik Against Jepun Bali Flowers Cellulolytic bacteria are microorganisms that produce cellulase enzymes that can synergistically hydrolyze crystalline cellulose into smaller oligosaccharides and eventually become glucose which can be used by these microorganisms as a source of nutrients for their growth. Cellulose acts as an inducer in cellulase synthesis which has two functions, namely as an inducer in enzyme synthesis and as a carbon source for cell growth. This study aims to obtain bacteria that are able to degrade organic waste samples using several methods, namely bacterial isolation, selective media, identification of bacterial colony morphology and qualitative bacterial degradation test. The results of this study indicated the presence of bacterial growth in selective CMC media and showed the ability of bacteria to degrade organic waste samples on Gelatine media. The results of bacterial isolation on CMC media with a dilution level of 10-8 were found 14 bacterial isolates in the TPST-3R Kertalangu sample and 16 bacterial isolates in the TPST-3R Nangun Resik sample. Each isolate was classified based on colony morphology, obtained three different isolates. Isolates taken from TPS Kertalangu were coded A, B, and C while isolates taken from TPST-3R Nangun Resik were coded E, F, and G. Most of the surface is convex, and flat. Based on the results of the calculation of the cellulolytic index, it was found that only isolate G was in the medium category and the other isolates had a high category value. The formation of a clear zone around the colonies that grew on CMC media showed that the isolate had cellulolytic activity measured qualitatively. The results of the analysis of the degradation ability of the Bali Jepun flower samples showed that isolate F was the fastest degraded isolate with an average of 3.5 days.
Respon Pertumbuhan Bibit Kopi Arabika (Coffea arabica L.) terhadap Berbagai Jenis Media Tanam dan Dosis Pupuk Urea SALSABILA FAADHILAH; I WAYAN WIRAATMAJA; I NYOMAN GEDE ASTAWA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Arabica Coffea Seed (Coffea Arabica L.) Growth Responses to Various Type of Planting Media and Urea Fertilization Dosage Arabica coffea is a type of coffee that has greater fruit characteristics and tastes better compared to robusta coffee so this commodity has the prospect of increasing the country's foreign exchange. To obtain quality crops, in the production process must be cultivated stages of good cultivation. To achieve this, cultivation techniques related to factors that affect the growth of arabica coffee seeds, namely planting media and urea fertilizer dosage. This study aims to find out the response of arabica coffee seedlings growth to various types of planting media and doses of urea fertilizer. This study used a Randomized Group Design (RAK) with two factors. The first factor is the type of planting media namely top soil (M1), top soil: sand (M2), top soil: cow manure (M3), the second factor is the dose of urea fertilizer namely control (N0), 0.5 g / polybag (N1), 1 g / polybag (N2), 1.5 g / polybag (N3). The results showed an interaction between the type of planting media and the dose of urea fertilizer against the variable leaf dry weight. Combination of top soil and sand with a dose of urea fertilizer 1.5 g / polybag gives the largest leaf dry weight of 6.20 g.
Evaluasi Status Kesuburan Tanah pada Subak di Kecamatan Denpasar Selatan Berbasis Sistem Informasi Geografis NI WAYAN KRISTINA MONIKA DEWI; I DEWA MADE ARTHAGAMA; NI MADE TRIGUNASIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Evaluation of Soil Fertility Status in Subak in South Denpasar District Based on Geographic Information System Soil fertility is the ability of the soil to provide nutrients needed by plants to support their growth and reproduction, fertile soil conditions have water, air and nutrients in a fairly balanced state and are available according to plant needs, both physical, chemical and biological soil. This study aims to determine the fertility status of subak soil, the limiting factors of soil fertility status and provide direction for managing soil fertility in subak in South Denpasar District. This research was conducted using survey methods and soil test methods. Determination of soil chemical properties is matched with the criteria for assessing soil chemical properties and determining soil fertility status includes the results of chemical properties by combining soil fertility parameters according to PPT (1995). The results of the evaluation of soil fertility status in Subak, South Denpasar District can be grouped into 2 fertility statuses, namely medium and high fertility. Subaks classified as having moderate fertility status are Subak Sanur and Subak Sesetan. Meanwhile, subaks classified as having high fertility status are West Intaran Subak, East Intaran Subak, Renon Subak, Sidakarya Subak, Panjer Subak, Kerdung Subak, Kepaon Subak and Cuculan Subak. The limiting factor that makes the soil fertility status moderate in the study area is due to the low P-Total. The recommended management alternative is the addition of P fertilizer and the addition of organic matter so that soil fertility can be well maintained.
Kajian Posisi Bahan Setek Batang Dan Dosis Rootone-F Pada Perbanyakan Tanaman Markisa Kuning (Passiflora edulis var. flavicarpa) I PUTU EKO SURYA ARIANTA; I PUTU DHARMA; I WAYAN WIRAATMAJA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Study of Stem Position Cuttings and Rootone-F Dosage for Yellow Passion Fruit Propagation (Passiflora edulis var. flavicarpa) Yellow passion fruit (Passiflora edulis var. Flavicarpa) is a type of sour passion fruit that is generally grown in low to medium plains. This passion fruit has an oval round shape, yellow when ripe and green when young. Mostly the yellow passion fruit was propagated sexually by seed, while vegetative methods can be done by means of connection, cuttings and tissue culture. Passion fruit propagation is easier and faster to cloned than other vegetative propagation methods. The focus to know the different result of stem position treatment and administration of Rootone-F growth regulator and its interaction on the growth of yellow passion fruit cuttings. This study used a 2-factor factorial design, namely: treatment of stem position and administration of Rootone-F growth regulator. The observed variables were shoot growth time, shoot oven dry weight, shoot length, primary root number, primary root length, root oven dry weight, number of leaves, leaf area, leaf oven dry weight, total wet weight, total oven dry weight. The results showed that the highest root oven dry weight was obtained in the treatment at the base of the stem with a dose of Rootone-F 225 mg / cuttings (P3Z3) with a root oven dry weight of 3.30 grams.
Identifikasi Senyawa Antijamur dari Agens Hayati Rizoplan KEZIA KEZIA; KHAMDAN KHALIMI; TRISNA AGUNG PHABIOLA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Identification of Antifungal Compounds From Biological Agents of Rhizoplan Fusarium wilt disease that attacks plants is caused by Fusarium oxysporum, this disease can cause significant losses to plants. The use of rhizoplan bacteria is considered as an alternative to control fungal growth. The use of selective and environmentally friendly rhizoplan bacterial control. The purpose of this study was to identify antifungal compounds in bacterial rhizoplans. The results showed that rhizoplan bacteria were able to inhibit the growth of F. oxysporum f.sp. lycopersici fungal colonies on potato dextrose agar (PDA) media with an inhibition percentage of 88.24% when compared to the control. The results of the filtrate test of rhizoplan bacteria at a concentration of 50% were able to inhibit the growth of F. oxysporum f.sp. lycopersici with an inhibition percentage of 90.14%. The antifungal compounds produced by rhizoplan bacteria isolate RbJN10 on Gas Chromatography Mass Spectrometry (GC-MS) analysis were Dihydro-3- (2H)-thiophenone; 2(5H)- Furanon; 2(3H)- Furanone,5-methyl; 2- Furancarboxaldehyde, 5-methyl; 2,5Dimethylfuran-3,4(2H, 5H)-dione; 2- Furancarboxylic Acid; Methyl 2-furoate; 1,2-Ethanadiol,1-(2-furanyl)-; 5- hydroxymethylfurfural.
Analisis Daerah Rawan Bencana Kekeringan Berbasis Sistem Informasi Geografis di Kabupaten Bondowoso Provinsi Jawa Timur WAHID ARDIANSYAH; I WAYAN NUARSA; IDA BAGUS PUTU BHAYUNAGIRI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Analysis of Drought-Prone Areas Based on Geographic Information Systems in Bondowoso Regency, East Java Province Hydrometeorological disasters that often hit Indonesia are floods in the rainy season and drought in the dry season. The plains in Bondowoso Regency consist of mountains and hills covering 44.4%, highlands covering 24.9%, and lowlands covering 30.7% of the total area. Such land conditions in Bondowoso Regency have a negative impact on another aspect, namely the availability of clean water for the surrounding community. This study aims to determine the distribution of drought-prone areas in the Bondowoso Regency, verify the results of the analysis with BPBD data from Bondowoso Regency, and directions for drought mitigation. The method used in this research is spatial analysis with a scoring system using Quantum GIS software. The results showed that in Bondowoso District, there are 5 classes of drought susceptibility. Those classes including a very low drought hazard class covering an area of ??0 ha, a low hazard class with an area of ??928 ha, the moderate hazard class with an area of ??73,378 ha, the high hazard class with an area of ??77,522 ha, and a very high with an area of ??4,172 ha.
Analisis Neraca Air Untuk Kebutuhan Air Irigasi di Daerah Aliran Sungai (DAS) Tukad Buleleng, Kabupaten Buleleng FIRDA ARFIANA; R. SUYARTO; WIYANTI WIYANTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Analysis of Water Balance for Irrigation Water Needs in Tukad Buleleng Watershed, Buleleng Regency Population and human activity have increased so that land use changes resulting in the catchment area does not function optimally. Poor watershed function conditions result in water in the dry season becoming scarce. Drought occurs due to upstream imbalance of watersheds that undergo land function, so the water needs for rice fields are not met. The purpose of this study is to analyze the needs of irrigation water. The method used is descriptive quantitative by calculating from the stage of crop water requirement/CWR, farm water requirement/FWR and project water requirement/PWR. The results showed that the highest value of water needs/PWR projects occurred in the planting period I November III during the generative phase of 196,90 liters/second and the lowest occurred in the planting period II in May I during the fertilization and ripening phase 156,40 liters/second.
Halaman Depan JAT Vol. 11, No. 1, Januari 2022 Pengelola JAT
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.1, Januari 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Halaman Depan JAT Vol. 11, No. 1, Januari 2022
Analisis Spasial Koefisian Limpasan Permukaan untuk Estimasi Luapan Banjir di DAS Tukad Buleleng Provinsi Bali ANGGIA WIDYA FATAHILLAH; R. SUYARTO; WIYANTI WIYANTI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.1, Januari 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Spatial Analysis of Surface Runoff Coefficient for Estimating Flood Overflow in Tukad Buleleng Watershed Bali Province Land-use change of high-density vegetation, into agricultural land and built-up land in the upstream area can affect the hydrological function of the watershed. Such conditions are increasingly fatal, with high rainfall, causing a high coefficient of surface runoff. High surface runoff can cause overflow floods in watersheds, one of which is in the Tukad Buleleng watershed, Bali Province. The implication of high surface runoff is flooding in the downstream area of the watershed, thus having a detrimental impact on communities in the downstream area of the watershed. This study aims to analyze the spatial distribution of the surface runoff coefficient. Analysis of the coefficient of surface runoff using the Cook method, by utilizing spatial data of slope, land use, and soil texture. Data analysis technique using Geographic Information System (GIS) on ArcGIS 10.4 software. The results showed that the Tukad Buleleng watershed has a low to extreme runoff coefficient. The high value of the coefficient of surface runoff is due to high rainfall, steep slopes, texture dominated by clay fractions, and land use with low vegetation density. The high surface runoff coefficient value has an impact on the flood overflow in the Tukad Buleleng watershed, Bali Province.
Uji Efektivitas Pemberian Air Kelapa dan Ekstrak Tomat pada Media Modifikasi terhadap Pertumbuhan Planlet Anggrek Hitam (Coelogyne pandurata) Secara In Vitro SISMAWANTI DAYU MALINDA; HESTIN YUSWANTI; I PUTU DHARMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.11, No.1, Januari 2022
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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The Effectiveness Test of Coconut Water and Tomato Extract on Modified Media for Growth of Black Orchid (C. Pandurata) In Vitro Plantlet growth in tissue culture is influenced by many factors, one of which is exogenous growth regulators applied to the media. The purpose of this study was to determine the effect of coconut water and tomato extract on modified media on the growth of C. pandurata plantlets. The research was carried out at the Ecophysiology Laboratory, Faculty of Agriculture, Udayana University, from January 2019 to April 2019. The study used a completely randomized design consisting of two factors, namely tomato extract and coconut water. The treatment consisted of 4 levels, 0 m/L, 100 ml/L, 150ml/L, 200ml/L, 16 treatment combinations were obtained with 3 replications. The results showed that the 100ml/l tomato extract treatment gave the highest increase in plantlet height, root length, number of roots, wet weight and dry weight. The 150ml/l tomato extract treatment gave the most increase in the number of leaves. Giving 150ml/l of coconut water gave the highest number of roots compared to other treatments. The interaction between of tomato extract and coconut water had no significant effect on all observed parameters.

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