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E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology)
Published by Universitas Udayana
ISSN : 23016515     EISSN : -     DOI : -
Core Subject : Agriculture,
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.
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Articles 468 Documents
Pengembangan Formula Biofungisida dan Aplikasinya dalam Mengendalikan Penyakit Layu Fusarium pada Tanaman Tomat (Solanum lycopersicum L.) DONI SITUMORANG; 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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Development of a Biofungicide Formula and Its Application in Controlling Fusarium Wilt in Tomato Plants (Solanum lycopersicum L.) Fusarium oxysporum fsp. lycopersici is one of the pathogenic fungi that causes Fusarium wilt disease in tomato plants and is very detrimental in tomato cultivation. Fusarium wilt disease control can be done by using a biofungicide formula that does not damage the environment. Biofungicide is the use of biological agents as active ingredients combined with natural carrier agents to form a biofungicide formula. The fungus Gliocladium sp. is a biological agent that can be used as an active ingredient in a biofungicide formula. This study aims to test the ability of Gliocladium sp. in inhibiting the growth of the fungus F. oxysporum fsp. licopersici in vitro and tested the ability of the formula with the active ingredient Gliocladium sp. in suppressing the incidence of wilt disease in vivo. The results of the inhibitory test of Gliocladium sp. against the growth of the fungus F.oxysporum fsp. lycopersici showed that the treatment of Gliocladium sp. can suppress the growth of fungal colonies F. oxysporum fsp. lycopersici with the percentage of inhibition of 99.21%. Testing of biofungicide formulas in vivo shows that the four biofungicide formulas namely F1, F2, F3 and F4 are able to control Fusarium wilt disease in tomato plants with a wilt disease percentage of 0%.
Evaluasi Kemampuan Lahan dan Arahan Penggunaan Lahan di DAS Yeh Ho Kabupaten Tabanan CALVIN ALDIATMA SANTOSA; MADE SRI SUMARNIASIH; I WAYAN DIARA
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 Land Capability and Direction of Land Use in the Yeh Ho Watershed Tabanan Regency Yeh Ho watershed is a type of continuous river with the characteristics of being able to flow water throughout the year and in its upstream there are still many seasonal cultivation activities and permanent buildings, this can trigger landslides and erosion due to varying slopes and heights. The purpose of this study was to determine the land capability class, land use directions and appropriate management actions so that the watershed function remains sustainable. The methods used are surveys and field observations, and laboratory analysis to measure the parameters of the physical and chemical properties of the soil. Land capability is determined based on the results of soil analysis in the field and laboratory, and the direction of land use is determined based on rainfall, slope and soil type. The results of the study were in the land capability class IIe, IIIe, IVe-s-g, VIe-g. From the results of direction of land use, that the Yeh Ho watershed can be directed to four types of land use, namely annual cultivation, protected areas, buffer areas, and seasonal cultivation because the score for calculating land use directions is in the range of 60-175. The recommended land use as management actions are annual crop cultivation (units 1, 5, 7, and 8), high density mixed gardens (units 2, 3, 11, and 12), high density mixed forest gardens (units 4, 9, and 10), area annual crop cultivation (units 6 and 13).
Pemetaan Sumberdaya Subak Berbasis Remote Sensing dan Geographic Information System di Subak Juwuk dan Subak Lebo, Kecamatan Sukawati, Kabupaten Gianyar ARGUMENTA TEO VELUS SITEPU; INDAYATI LANYA; I GUSTI PUTU RATNA ADI
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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Remote Sensing and Geographics Information System-Based Mapping of Subak Resources in Subak Juwuk and Subak Lebo, Sukawati Subdistrict, Gianyar Regency Based on Gianyar District Regulation No.16 of 2012 on Spatial Plan, Subak Juwuk and Subak Lebo rice fields in Sukawati Subdistrict, Gianyar Regency are designated as Green Open Space areas. Therefore, the mapping of remote sensing-based subak resources and Geographic Information System (GIS) is carried out to support the sustainability of sustainable food agricultural land. The objectives are: (1) identifying and describing potential subak resource (land resources, artificial resources, agricultural resources, and human resources), (2) inform the database of subak (land resources, artificial resources, agricultural resources, and human resources), (3) create a map of rice field ownership in Subak Juwuk and Subak Lebo, and (4) create farmer status maps and human resources based on remote sensing and geographic information systems. Research methods use: (1) literature study, (2) satellite image analysis, (3) tentative mapping of land ownership, (4) resource information arranging. The result of research: Rainfall 1300-1600 mm/year, slope 0-3%, land family Typic Fragiaquepts. Length of irrigation Subak Juwuk: 1300m; Subak Lebo: 1000m, types of secondary, tertiary irrigation. Types of rice, chili and tobacco commodities. Productivity 6 tons/ha. Subak Juwuk: owner 20 peoples area of 4,96 ha, sharecroppers 65 peoples area of 18 ha; Subak Lebo: owner 20 peoples area of 3,50 ha, sharecroppers 55 peoples area of 14,76 ha. The average age of farmers 40-80 years, average level of education of farmers in general are high school graduates. Mapping of agricultural land resources and geospatial-based human resources are very fast and accessible.
Pengujian Bakteri Endofit Indigenous dalam Mengendalikan Penyebab Penyakit Busuk Buah Kakao (Phytophthora palmivora Butler) Secara In Vitro SAMI MAIDA SIJABAT; I MADE SUDARMA; KHAMDAN KHALIMI
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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Testing Indigenous Endophytic Bacteria in Controlling Causes of Cacao Rot Disease (Phytophthora palmivora Butler) In Vitro Phytophthora palmivora is the cause of important diseases in cacao, including pod rot. Fruit rot is the most dominant disease because it causes great losses. The use of biological agents is an environmentally friendly way to treat rot disease. One of these biological agents is endophytic bacteria in inhibiting the growth of the fungus P. palmivora which causes pod rot disease in cocoa (Theobroma cacao L.). The research was conducted in vitro. The results of the isolation and inhibition test showed that 1 isolat of endophytic bacteria had the best inhibition, namely BC2 isolat which was able to control P. palmivora fungi disease with an inhibitory percentage of 95.47% when compared to the control at 5 days after inoculation. The results of the inhibition test of the bacterial filtrate of BC2 isolat against P. palmivora at a concentration of 50% showed that the bacterial filtrate of BC2 isolates was able to inhibit the growth of P. palmivora fungi with an inhibitory percentage of 99.80% when compared to the control. The results of the inhibition test of BC2 isolat bacteria on P. palmivora fungi biomass showed that BC2 isolat bacteria were able to inhibit the formation of fungi biomass by 72.72% when compared to the control.
Halaman Depan JAT Vol. 10, No. 4, Oktober 2021 Pengelola JAT
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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Halaman Depan JAT Vol. 10, No. 4, Oktober 2021
Pengaruh Penjarangan Beri terhadap Kualitas Buah Anggur (Vitis vinifera L.) Varietas Prabu Bestari NI KETUT KARINA SARI; I MADE SUKEWIJAYA; I GUSTI ALIT GUNADI
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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Effect of Thinning Berries on quality of Grapes (Vitis Vinifera L.) Prabu Bestari Variety The Prabu Bestari grape variety is an introduced grape from Australia which has been assembled by the Research Institute for Citrus and Subtropical Fruits (Balitjestro – Malang) through selection, this Prabu Bestari variety is a variety that was released in December 2006. This experiment studys the effect of berry thinning on the quality of Prabu Bestari grapes. This research was conducted from October 2020 – January 2021. This research was conducted at the Experimental Garden of the Faculty of Agriculture (KPFP) Jl. Pulau Moyo No. 16X, Pedungan, Denpasar, Bali, at an altitude of 9-10 meters above sea level. This study used a randomized block design (RBD). The treatments tested were berry thinning consisting of 4 levels, Control (P0), 10%-25% berry thinning (P1), berry thinning > 25%-40% (P2), berry thinning >40%-55 % (P3). The experiment was repeated 6 times, each treatment using 2 experimental units, so that there were 48 experimental units of bunch samples. The berry thinning treatment had a very significant effect on the variables of bunch weight per bunch, berry weight, vitamin C content, total dissolved solids, and total titrated acid, and a significant effect on the variable diameter of berries, but had no significant effect on the variables of bunch length and tannin content. The results of statistical analysis using the LSD, test of berry thinning with P3 were able to increase fruit weight per bunch by 19.9% ??compared to control, berry diameter 21.37 mm, berry weight 7.93 g, total soluble solids 7.97 oBrix, total acid titrated 1.21%.
Evaluasi Status Kesuburan Tanah Berbasis Sistem Informasi Geografis (SIG) pada Lahan Subak di Kecamatan Denpasar Barat, Kota Denpasar, Provinsi Bali BAYU RACHMADYA; NI MADE TRIGUNASIH; A.A. NYOMAN SUPADMA
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 with Geographic Information System (GIS) Based on Subak Land at West Denpasar District, Denpasar City, Bali Province This study aims to determine the status of soil fertility, to determine the characteristics of the soil which is a limiting factor to the status of soil fertility, to provide recommendations for land management, and to determine the spatial distribution of soil fertility status on Subak land in West Denpasar District. This research was conducted from December 2020 – March 2021. The method used in this research is the field survey method and soil test with fertility status parameters including Cation Exchange Capacity, Base Saturation, C-Organic, Total phosphate, and Total potassium with reference to the Technical Guidelines for Evaluation of Soil Fertility Bogor Soil Research Center (1995). The results showed that the soil fertility status at the study site was classified as moderate (Subak Pagutan) and high (Subak Semila; Subak Mergaya; Subak Tegal Buah; Subak Tegallantang). Parameters of low total P content in Pagutan Subak and moderate in Semila Subak, Tegal Buah Subak, and Tegallantang Subak as well as moderate K-total content in all subaks are the limiting factors in this fertility status so it is necessary to apply phosphate fertilization in Subak which has a limiting P-total and potassium fertilization as well as adding organic matter to the entire Subak.
Pengaruh Penjarangan Beri terhadap Kualitas dan Kuantitas Hasil Buah Anggur (Vitis vinifera L.) Varietas Kediri Kuning MADE KAMASAN DHARMA YUDHA; I MADE SUKEWIJAYA; I PUTU DHARMA
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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The Effect of Berry Thinning on the Quality and Quantity of Grapes Yield (Vitis vinifera L.) Kediri Kuning Variety Grapes are a horticultural commodity that have the potential to increase farmers' income. Efforts can be made to improve the quality and quantity of the Kediri Kuning grapes by thinning the berries by 10% – 60%. This study aims to determine the effect of thinning berries on the quality and quantity of a grapes and determine the best thinning treatment that can increase the quality and quantity of Kediri Kuning grapes. This study used Randomized Block Design with berry thinning treatment consisting of 4 levels, namely control (P0), thinning of 10 -25% (P1), thinning of >25-40% (P2), thinning of >40-60% (P3) at the age of berries 14 days after anthesis. The thinning method is cutting the berries in bunches using small scissors. The results showed that the treatment of thinning gave a very significant effect on variable weight of the fruit per bunch, berries weight, diameter berries, bunches length, vitamin C, sugar content of fruit (oBrix), the content of total acid, and organoleptic. The best thinning of berries on the Kediri Kuning grapes was thinning treatment >40% - 60% (P3) which gave the highest quality and quantity, each fruit weight per bunch 290.65 g, berry weight 7.93 g, berry diameter 14.82 mm, the length of the bunch was 25.92 cm and the chemical content.
Pengaruh Konsentrasi Zat Pengatur Tumbuh NAA dan Jenis Pupuk Organik Terhadap Hasil Tanaman Serai Wangi (Cymbopogon nardus L.) I GEDE NADI ARAT; I WAYAN WIRAATMAJA; NI LUH KARTINI
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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Effect of Concentration of Growth Regulating Substances NAA and Types of Organic Fertilizer on Yield of Citronella (Cymbopogon nardus L.) Citronella is widely used in the therapeutic scrub and aromatherapy industry, especially in the Province of Bali. The aromatic oil produced from the citronella plant is used for incense or aromatic candles. The purpose of the study was to determine the effect of growth regulators NAA (Naphthalene acetic acid) and types of organic fertilizers on the yield of citronella plants. The treatment used consisted of two factors: the concentration of the NAA auxin hormone with the concentration of A0 = 0 ppm, A1 = 10 ppm, and A2 = 20 ppm as the first factor. The second factor is the type of fertilizer P0 = soil, P1= vermicompost 50 g and P2 = 100 g fertilizer goat manure. The results showed the interaction between the concentration of auxin NAA with the type of organic fertilizer significantly affected the number of leaves, number of tillers, and the roots fresh weight. Combination treatment A1P2 (10 ppm NAA and 100 g fertilizer goat manure) showed the highest leaf number (64.07), the highest number of tillers (11.29) and the highest fresh weight of roots (44.17 g), compared with A2P1 and A1P0 with the lowest values ??of 7.16, 41.47, and 25.4 g, respectively. NAA auxin treatment singly significant effect on leaf area and fresh weight leaf. NAA concentration of 10 ppm (A1) provides the highest leaf area (70.09 cm2) and fresh root weight (47.77 g), compared to control (A0) with the lowest value of 65.85 cm2 and 33.38 g. Organic fertilizer treatment significantly affected the fresh weight total and dry weight total. Fertilizer goat manure 100 g (P2) produce a total crop fresh weight of 147.57 g and dry weight of 64.28 g, compared to treatment with P0 and P1 with the lowest values 108.43 g and 49.99 g, respectively.
Identifikasi Morfologi Jamur Kontaminan pada Naskah Lontar I KOMANG VIDIA DHARMA TARO PUTRA; I PUTU SUDIARTA; NI WAYAN SUNITI
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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Morphological Identification of Fungal Contaminant in Lontar Manuscripts The lontar manuscript is a cultural heritage of Balinese ancestors that contains knowledge that includes mantras, traditional medicine, songs and religious history. The physical condition of the lontar manuscript is very susceptible to being damaged by fungi. The fungus that grows on lontar manuscripts is thought to be of the species: Fusarium, Penicillium, and Aspergillus flavus. The purpose of this study was to determine the type of fungus that attacks lontar palm. The study began with sterilization of the instrument, manufacture of PDA media, isolation of pathogenic fungi, Koch's postulate test on palm lontar manuscripts, identification of morphology. The results showed that the fungus contained in the lontar manuscript is a type of fungus Penicillium sp. it can be seen from the identification results that the fungus has the following characteristics: white and brownish orange colonies, has insulated hyphae, erect and insulated conidiophores, conidia are chain-shaped and congregate on top of phialids.