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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 11 Documents
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Search results for , issue "Vol.9, No.1, Januari 2020" : 11 Documents clear
Penularan Virus Bergejala Mosaik Pada Tanaman Melon (Cucumis melo L.) Secara Mekanis dan Melalui Vektor Kutu Daun MISBAHUL KHULUQ; TRISNA AGUNG PHABIOLA; I NYOMAN WIJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Transmission of Symptomatic Mosaic Virus in Melon (Cucumis melo L.)Mechanically and Through the Aphids Vector Melon (Cucumis melo L.) is one of the horticulture plants that is widely cultivated and consumed by the people of Indonesia. But the decrease in yield due toan OPT attack (plant disrupting organisms) is a major concern. Among the pests thatplay a role in reducing the yield of melons are viruses and insect vectors. Aside frombeing a pest, aphid insect also act as vector transmitters of viruses that cause mosaicsin melon plants. The method of transmission in this research used the method oftransmission mechanically and through aphids vectors. The aim of this research wasto examine the potential transmission of Potyvirus wich caused mosaic on melonmechanically and through the vector Aphis gossypii. The parameters are the type ofsymptoms, the percentage of the disease and the intensity of the disease attack. Thevariations of symptoms showen were dark green mosaic patterns, yellow mosaicpatterns, vein-banding and malformations. The results of the transmission test wereproven by molecular identification using the Reverse Transcription Polymerase ChainReaction method. The results explained that the Potyvirus could be transmittedmechanically with disease incidence of 100%, disease intensity of 42% and throughAphis gossypii vector with a disease incidence of 90%, disease intensity of 28%. Thetest was proven using the RT-PCR method with CIFor and CIRev primers whichshowed amplicon product 700 pb.
Aplikasi Remote Sensing dan Geographic Information System untuk Perencanaan Penggunaan Lahan Pertanian Berbasis Agroekosistem di Kota Denpasar RIAN REHMAMANA; INDAYATI LANYA; I NYOMAN DIBIA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Remote Sensing and Geographic Information System Application forAgroecosystem Based Agricultural Land Planning in Denpasar City This study aims to determine the level of potential agroecosystem land suitability, compile databases, build information systems and create maps of land useplanning for food crops and horticulture based on remote sensing and GeographicInformation System (GIS). This research took place from September 2018 - December2018 using an exploratory method which included analysis of satellite imagery, fieldsurveys, analysis of field data and laboratory data, land suitability classification,mapping of land suitability classes, compiling data bases, building informationsystems, commodity zoning, planning land use, and mapping of land use planning.Potential land suitability classes for irrigated rice fields are generally very suitable inall of Denpasar City (41 subak) but additional fertilizer is needed, especially N.Potential land suitability classes for horticultural (vegetable and fruit) commodities areclassified as appropriate (S2) through drainage improvements and fertilization.Climate factors are generally very suitable (S1) for food crops, and suitable (S2) forhorticulture plants. The train factor is generally classified as very suitable (S1) in foodcrops and horticulture unless the drainage factor is relatively slow and nutrientavailability is classified as moderate.
Identifikasi Virus Penyebab Penyakit Mosaik pada Tanaman Melon (Cucumis melo L.) di Bali RIZWAN FEBIANTA BRAHMANA; TRISNA AGUNG PHABIOLA; I GEDE RAI MAYA TEMAJA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Identification of Viruses that Causes Mosaic Diseases in Melons(Cucumis melo L.) in Bali The aims of this research was to identify of some virus that infects melons in Bali. The first step of this research was to take samples in Jembrana Regency, TabananRegency, Gianyar Regency, Denpasar City, and Badung Regency. The next step wasdoing virus detection at Laboratory of Plant Diseases, Faculty of Agriculture, UdayanaUniversity. Variations of symptoms found in the field were mosaic, yellow leaves,malformations, and burning spots on the leaves. The percentage of virus attacks inGianyar and Badung was the highest percentage (60.00%), Jembrana (57.14%),Denpasar (42.85%), and Tabanan (37.50%). To know type of virus that causes thisdisease, molecular identification was conducted. Extraction was the first step to gettotal RNAs from symptomatic leaves. Total RNAs was transcribed intoComplementary (c) DNAs using reverse transctiption-polymerase chain reaction (RTPCR)technique. Polymerase chain reaction (PCR) was conducted using cDNA and three primer pairs of CABYV-489-F/Pol-G-R, MABYV-262-F/Pol-G-R andCIFOR/CIREV. Primers would be use to amplified a part of coat protein. CABYV489-F/Pol-G-Rand MABYV-262-F/Pol-G-R is specific primer, and CIFOR/CIREV would be use to amplified gene of Potyvirus. Based on the results of molecular with PCR it was found that melons in Bali were positively infected with viruses from thePotyvirus group with a size of around 683 bp in samples from Gianyar and Denpasar.
Uji Efektifitas Bakteri Antagonis Untuk Pengendalian Penyakit Layu pada Tanaman Stroberi SHAH KANIGARA ASADDIARI; GUSTI NNGURAH ALIT SUSANTA WIRYA; I KETUT SIADI; I MADE SUDANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Effectiveness Test of Antagonistic Bacteria to Control Strawberry Wilt Disease Strawberry (Fragaria sp.) Is a herbaceous fruit plant that was first discovered in Chile, USA. Bali Province is one of the provinces that produce strawberries inIndonesia. The development center for strawberry commodity in the Province of Baliis in the Bedugul area, that is in the Village of Pancasari, District of Sukasada andVillage of Candikuning, District of Tabanan. Since 2016, there have been quiteharmful disorders in strawberry plants in Bali due to wilting caused by the fungusFusarium oxysporum. Research on the effectiveness test of antagonistic bacteria tocontrol strawberry wilt disease was conducted in January 2019 to August 2019. Thepurpose of this study was to determine the ability of antagonistic bacteria to controlthe growth of wilt disease in strawberries in vivo. The method used is the isolation ofbacteria and pathogens, application of bacterial and pathogenic isolates, andobservation. The results of this study are that the P3 bacterial isolate is able to controlthe most effective pathogens with a disease percentage of 20 %.
Pertumbuhan Setek Kopi Robusta (Coffea canephora P.) yang Dirangsang Dengan Urin Sapi, Air Kelapa dan Atonik dengan Berbagai Taraf Kosentrasi I KADEK BRATA; I NYOMAN SUTEDJA; I WAYAN PASEK ARIMBAWA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Cuttings Growth of Robusta Coffee (Coffea canephora P.) Which is Influencedwith Urin Cow, Coconut Water and Atonic With Various Cosentration Taraf Robusta coffee (Coffea canephora P.) in general can be reproduced generatively by seeds and vegetative with cuttings, because robusta coffee pollinatesso that the development of robusta coffee is not recommended using generativemethods or with seeds because it will form new populations with varying yieldproperties. Then the multiplication of Robusta coffee is done by cuttings. This studyaims to determine the effect of the type of Growth regulator between cow urine,coconut water, and atonic and the effect of the concentration level of each type ofGrowth regulator on the growth of Robusta coffee cuttings. This study uses a nesteddesign with 3 types of zat pengatur tumbuh and 4 levels of concentration as a treatment.The results showed growth regulators Cow urine, coconut water, and atonik both canincrease the growth of Robusta coffee cuttings in nurseries depending on theconcentration given, the best growth of cuttings in the administration of cow urine witha concentration of 20% with a total oven dry weight of 2.08 g which increases cuttingsgrowth by 150.60% compared with no administration of growth regulators, Theprovision of coconut water with a concentration of 50% with a total oven dry weightreached 154 g which increased cuttings growth by 115,21% compared to withoutadministration of growth regulators. and administration of Atonik with a concentrationof 0,25% with a total oven dry weight of 141 g which increased cuttings growth by67.86% compared with no administration of growth regulators.
Pendugaan Produksi Padi Dengan Menggunakan Citra Landsat 8 di Kabupaten Tabanan FERNANDO JOSUA SINAGA; I WAYAN NUARSA; I KETUT SARDIANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Estimation of Rice Production Using Landsat 8 Satellite in Tabanan District Agricultural sector is currently a very important sector considering that everyhuman being needs food to survive and as a source of energy to carry out dailyactivities. Production estimation that are accurate and timely can provide informationfor planners and decision-makers to formulate appropriate policies when conditionsare inadequate or overstocked. The technology that can be used is remote sensing usingthe Landsat 8 satellite. The greenness level parameters of plants (Vegetation Index)obtained through satellite image analysis can be used to estimate rice production. Theresearch area is located in Tabanan Regency. Estimation of rice production is done bythe equation y = 2.0442e1.8787x, where x is the NDVI value from the Landsat 8 imageand y is the result of rice production. The estimation results using Landsat 8 are oneseason production in tons/ha. The accuracy test is done by paired t-test and correlationanalysis. Paired t-test shows that there are no significant differences between riceproduction estimation from BP3K and rice production estimation using Landsat 8.Correlation analysis results show that there is a linear relationship between statisticalresults and estimation results with R2value 0.9682 with the equation y = 1.0099x -0.0794, where y and x are Landsat 8 estimates in tons/ha and BP3K data respectively,with a Standard Error (SE) of 0.1984.
Tingkat Perkembangan Biologi Nematoda Puru Akar (Meloidogyne spp.) pada Berbagai Jenis Tanaman Famili Solanaceae PUTU AYU FRAHMI NANDRIATI; I MADE SUDANA; I MADE SUDARMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Level Developmental Biology Root Nematode (Meloidogyne spp.) On DifferentTypes of Plants Family Solanaceae Meloidogyne spp. is an important parasitic nematodes which attack many crops in Indonesia. One of the host plants that are favored by Meloidogyne spp. is familysolanaceae. Solanaceace plant widely cultivated in Indonesia because of higheconomic value and become an important food ingredient. Attacks Meloidogyne spp.makes losing a very high yield so that the necessity of controlling performed tosuppress the attack of Meloidogyne spp .. Control with nematicides is a fast andpractical way, but the impact on the environment to be unfavorable. Therefore,controlling use of technical culture by means of crop rotation using a crop that is lessfavored by Meloidogyne spp. be an environmentally friendly alternative to control.This research see the development of larval stages II to IV and adult nematodes at 1gram root and larval stage II at 300 grams of soil by using red pepper plant (Capsicumannuum L.), cayenne pepper (Capsicum frutecesns L.), eggplant (Solanum melongenaL .) and tomato plants (Lycopersicum esculentum Mill).
Halaman Depan JAT Vol. 9, No. 1, Januari 2020 Pengelola JAT
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Cover, Dewan Redaksi, Daftar Isi JAT Vol. 9, No. 1, Januari 2020
Uji Efektivitas Agen Hayati Dari Rizosfer dan Filosfer Tanaman Solanaceae untuk Mengendalikan Penyakit Antraknosa pada Tanaman Cabai Rawit (Capsicum frutescens L.) HENRI PAN BAGUS MULIA NAPITUPULU; KHAMDAN KHALIMI; DEWA NGURAH SUPRAPTA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Effectiveness of biological agents from Solanaceae plants rhizosphere andfilosphere to control Antrachnose disease in Chili Pepper Plants (Capsicum frutescens L.). The disease antrachnose caused by the fungus Colletotrichum truncatum canattack the chili fruit at any stage, but it will not attack the leaves or stems. The use ofbiological agents from the rhizosphere and filosphere is a viable alternative to controlthe anthracnose disease. Biological agents work selectively and better for theecosystem. The goal of this research is to identify the effectivenes of biological agentsfrom rhizospheres and filospheres solanaceae plant to control C. truncatum that causesantrachnose disease in Chili Pepper Plants (Capsicum frutescens L.). This researchtakes place in vitro and the field this research shows that TmFr4 and TrRr7 treatmentcan inhibit the growth of C. truncatum in vitro with a high percentage of inhibition90,58 % and 91,23 %. The TrRr7 bacterial isolate can inhibit the anthracnose diseasefrom 95,23% to 64,23 % and able to reduce the intensity from 66,59 % tob 39,06 %while TmFr4 fungal isolates can inhibit the desiase from 95,23 % to 68,81 % andreduce its intensity from 66,59 % to 47,03 % base on the field test. Further study isneeded to analyze the stability of TmFr4 fungal isolate and TrRr7 bacterial isolatebiological control of C. truncatum in the field.
Evaluasi Kesesuaian Lahan Untuk Beberapa Tanaman Pangan Dan Perkebunan Di Kecamatan Burau Kabupaten Luwu Timur Sulawesi Selatan IDA BAGUS SURYAWAN; I GUSTI PUTU RATNA ADI; I NYOMAN DIBIA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.9, No.1, Januari 2020
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Evaluation Of Land Suitability For Several Food Crops And Plantations In Burau Sub-District, East Luwu Regency Of South Sulawesi This research aims to discover the actual and potential of land suitability, limited factor, improvement effort, land use management and the creation of land suitability mapsand direction of use for some food crops and plantations. Plants that are evaluated includerice, corn, chili, pepper, cocoa, clove and oil palm. The research was conducted in Burausubdistrict from February 2019 to June 2019. Based on the result overlapped of soil type,land use, and slope were obtained seven homogeneous land units. The research methodsused are surveys, analyses, and classification of land suitability based on the criteria ofgrowing plant requirements that are matched with the characteristics/quality of land.Results show that classes of actual land suitability for some food crops and plantations areS1 (very appropriate) until N (not appropriate). The limited factors in the research areainclude: temperature, rainfall, drainage, texture, CEC soil, base saturation, pH, C-Organic,N-Total, P2O5, K2O, slope, and the erosion hazard. Improvement of the land-suitabilityclass can be done with improvement effort except temperature and texture because theyare permanent barrier factor. Potential suitability class of land for some food crops andplantations evaluated are S1 (highly appropriate) until S3 (marginal appropriate), withlimited factors among others temperature, texture and slope factors. Land userecommendations on AISw, AIISw, AIKk, and AIKks are rice, corn and chili. AIIKks,PsIIIKk, and PsIVKks are recommended for pepper, cocoa, clove, and palm oil.

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