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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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Present Status of Major Pests and Diseases of Tomato and Chili in Bali I PUTU SUDIARTA; KETUT SUMIARTHA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol. 1, No. 1, Juli 2012
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Present Status of Major Pests and Diseases of Tomato and Chili in Bali The research on the distribution of pests and diseases of tomato and pepper plants do to find out the latest situation on the type and spread of pests and diseases of those plants in the wet season in Bali. Methods of research were conducted by survey and identification method based on the symptoms of the disease in field and laboratory observations using microscope. The study was conducted in February 2012 in the planting center area of tomatoes and peppers in Ubud and Kintamani Bangli. The study was funded by AVRDC-The World Vegetable Center (USAID). The survey results show that the identification of major diseases of pepper plants is viruses, anthracnose (Colletotrichum acutatum) and Phytophthora capsici; whereas for tomato plants are dominated by Late Blight (Phytophthora sp.) and viruses. The diseases are found in almost all locations of planting tomatoes and peppers in Tabanan (Sandan, Bangli, Titi Galar, and Batu Sesa) and Bangli District (Katung, Bayung, Kedisan, and Abang Batu Dinding Wall). However each of the diseases attack intensity is different. The highest attack of anthracnose occurred at Galar Titi and Batu Sesa (Tabanan), while the highest virus infection was found in Kedisan and Abang Batu Dinding (Kintamani). Keywords: pests and diseases, tomatoes, peppers
Pola Interaksi Parasitoid Larva Diadegma semiclausum Hellen (Hymenoptera: Ichneumonidae) dengan Plutella xylostella L. (Lepidoptera: Plutellidae) pada Tanaman Kubis yang Diperlakukan dengan insektisida Berbahan Aktif Emamectin Benzoat 5,7% I KADEK WISMA YUDHA; I WAYAN SUSILA; I MADE MEGA ADNYANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.4, Oktober 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Interaction Pattern of Larvae Parasitoid Diadegma semiclausum Hellen (Hymenoptera: Ichneumonidae) by Plutella xylostella L. (Lepidoptera: Plutellidae) on Cabbage Treated by Insecticide Emamectin Benzoate 5.7% The research Interaction Pattern of Larvae Parasitoid Diadegma semiclausum Hellen (Hymenoptera: Ichneumonidae) withPlutella xylostella L. (Lepidoptera: Plutellidae) on Cabbage Treated by Insecticide Emamectin Benzoate 5.7% .The aims of this study is to know the interaction pattern, population and parasitization level of D. semiclausum which was treated by insecticide with the active ingredient is emamectin benzoat 5.7%. The design of this study is randomized block design (RBD)usingfivelevel of treatments (control, 0,25; 0,50; 0,75 and 1,00) and five replications. The result of this research showed the interaction pattern of parasitoid was not influenced by the treatment of insecticide. The population of parasitoid D. semicalusum was not significant difference between the treatment. Thepopulation of parasitoid in Buahan village and Kerta village were 5,40 and 4,80 respectively. The parasitizationrate in Buahan village and Kerta Village waere not signification effect between the treatment. The population of D. semiclausum in Kerta and Buahan Village
Pengaruh Pupuk Organik Eceng Gondok dan Pupuk Hayati Terhadap Sifat Biologi Tanah, Pertumbuhan, dan Hasil Tanaman Sawi (Brassica Juncea L.) MAEZA PATRA; NI LUH KARTINI; NI NENGAH SONIARI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.1, Januari 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Effect of Hyacinth Organic Fertilizer and Biofertilizer on Biological Properties of Soil, Growth and Yield of Sawi Plants (Brassica juncea L.) This study aims to determine the effect of interactions between water hyacinth organic fertilizer and biofertilizer on the biological properties of soil, growth and yield of mustard greens. This research was conducted in April 2018 until June 2018 at Banjar Taman Tanda, Baturiti Village, Baturiti District, Tabanan Regency. The experiment used a randomized block design (RBD) with 2 factor, namely Eceng Gondok organic fertilizer 3 levels (P0, P1, P2), and biological fertilizer 3 levels (M0, M1, M2). 9 combination treatments and 3 replications so that there were 27 trial tests and data analysis using the Costat program and continued with the BNT test at 5% if the treatment was significantly. Parameters observed were pH, total N, organic C, microorganism population, plant height, fresh weight and dry weight of plants. the best treatment of water hyacinth organic fertilizer and biofertilizer on the yield of mustard plants was shown by a combination of 80 tons ha-1 of water hyacinth organic fertilizer and 60 ml of biological fertilizer (1% concentration solution) of 6,940 tons ha-1 and increased 24 % of control. This treatment provides the best response to green mustard plants.
Epidemi Penyakit Antraknosa pada Tanaman Jeruk Nipis [Citrus aurantifolia (christm.) Swingle] di Desa Kertalangu, Kecamatan Denpasar Timur NI WAYAN SUNITI; I KETUT SUADA; I MADE SUDARMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.1, Januari 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT The Epidemic of Anthracnose Disease in the Lemon [Citrus aurantifolia (Christm.) Swingle] at Kertelangu Village, East Denpasar District           Anthracnose disease on lemon  was a newly discovered disease in Kertalangu Village, East Denpasar. Status of the disease unknown,. and lemon plants grown less well maintained and neglected, almost all plants showing symptoms of disease. Planting conditions like this it's possible anthracnose disease that can destroy rapidly growing cultivation of lemon. The research was conducted from April to June 2015 in the village of Kertalangu, district East Denpasar, Bali.           The results showed that the leaf spot disease found on lemon was anthracnose that caused by Colletotrichum gloeosporioides. Disease incidence of anthracnose was 26.16 – 35.00%, and disease severity was 17.38 – 24.10%, that is mean relatively mild disease. The infection of rate was  0.00128 – 0.0162 per leaf per day, its mean development of the disease was slowly.   Keywords: Anthracnose, Colletotrichum gloeosporioides, inhibiting ability, prevalence, endophytic and exophytic.  
Uji Aktivitas Ekstrak Kulit Buah Beberapa Tanaman dan Daya Hambatnya Terhadap Pertumbuhan Ralstonia Solanacearum pada Cabai SHEILA SIMANJUNTAK; MADE SRITAMIN; I KETUT SUADA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.2, April 2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Inhibiting Ability of Some Fruit Rinds Extract Against the Growth of Ralstonia solanacearum on Chili Ralstonia solanacearum infect plant root through wound that occured indirectly. The symptoms of the disease are whole plant to wilt, the leaves turn yellow to blackish-brown, and eventually the plant dies. In the culture media contained  Triphenyltetrazolium Chloride (TZC) the bacterium tend to form white colony and irregular round shape. The method used to determine the extract activating was well diffusion method. The results of the study showed that application of coconut rind extract inhibited the bacterium. The minimum concentration was 1,25% with diameter of inhibition zone was 15 mm. The phenolic compounds contained on the coconut rind was possibly inhibit the growth of the bacterial colonies. Further research needs to be conducted in vivo to determine the effectiveness of antibacterial compounds contained in the extract of coconut rind. Keyword: fruit rind extract, Ralstonia solanacearum, well diffusion method
Identifikasi Penyakit Antraknosa Tanaman Jeruk Nipis [Citrus aurantifolia (Christm.) Swingle] di Desa Kertalangu Kecamatan Denpasar Timur I GEDE WIGUNA ARDINATA; I MADE SUDARMA; NI WAYAN SUNITI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.1, Januari 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Identification of Leaf Spot Disease of Lime Plants [Citrus aurantifolia (Christm.) Swingle]in Kertalangu Village,District of East Denpasar.In Kertalangu Village, District East of Denpasar there are some plants lime getting anthracnose disease. Disease status is unknown and the plants are not too noticed by their owners. The purpose of this research was to identify the disease that attack lime plants. This research outlines the causes of disease, the extent of damage and the rate of infection of pathogens that attack lime plants. The research was conducted over three months since April until June 2015.This research has shown that the pathogen causing anthracnose disease in lime plants is Colletotrichum gloeosporioides. The disease incidence ranges from 26.46% - 35.87%, pathogen infection rate ranges from 0.0171 to 0.0157 per leaf per day (? 0.11), which means that 1000 leaves, infected 171-157 per day with the criteria of slow infection rates and the extent of damage or the disease severity ranges from 17.31% - 24.47% (> 10% - ? 25%), classified as mild criteria.
Uji Aktivitas Antijamur Ekstrak Biji Keben (Barringtonia asiatica (L.) Kurz) terhadap Curvularia verruculosa Penyebab Penyakit Bercak Curvularia pada Tanaman Padi (Oryza sativa L.) I GEDE KARTA SATRIA WIBAWA; DEWA NGURAH SUPRAPTA; KHAMDAN KHALIMI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.3, Juli 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Antifungal Activity of Keben (Barringtonia asiatica (L.) Kurz) Seed Extract against Curvularia verruculosa the Causal Agent of Curvularia Leaf Spot Disease on Rice (Oryza sativa L.)This research was conducted to determine the effectiveness of keben (Barringtonia asiatica (L.) Kurz) seed extract to control Curvularia verruculosa the causal agent of curvularia leaf spot disease on rice. The extract concentration of 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9% and 1.0% was tested on in vitro test to determine the minimum inhibitory concentration (MIC) and inhibition percentage. Crude seed extract was partitioned and analyzed using GC-MS to determine the active antifungal compound. Concentration of 0.6%, 0.7%, 0.8%, 0.9% and 1.0% is tested on in vivo test in a greenhouse to determine the effectiveness of keben seed extract formula to control the curvularia leaf spot disease on rice. The result shows that the MIC of keben seed extract was 0.5% with inhibitory percentage that increases from 0.1% to 0.5% and cause 100% inhibitory on 0.6% concentration and above. GC-MS analysis showed antifungal compound such as Butyl Hydroxy Toluene; Dodecanoic acid, methyl ester; Methyl tetradecanoate; Benzoic acid 2, 5-bis (trimethylsiloxy)-trimethylsilyl ester; 1-Tetradecanol; Hexadecanoic acid, methyl ester; Octasiloxane, 1, 1, 3, 3, 5, 5, 7, 7, 9, 9, 11, 11, 13, 13, 15, 15-hexadecamethyl-; 13-Docosenoic acid, methyl ester (Z)- and 1, 2-Benzenedicarboxylic acid, dioctyl ester are present in keben seed. Greenhouse test showed that keben seed extract can suppress curvularia leaf spot disease from 25.16% to 2.57%.
Pengaruh Penggunaan Mulsa Plastik Terhadap Kelimpahan Serangga Myzus persicae pada Tanaman Cabai Rawit (Capsicum frutescens L.) KADEK DWI UTAMA; I GUSTI NGURAH BAGUS; I KETUT SIADI; DEWA NYOMAN NYANA; GEDE SUASTIKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.1, Januari 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Effect of Plastic Mulch to Myzuspersicae Insect Abundance in Plant Cayenne Pepper (Capsicum frutescens L.)   Cayenne Pepperis one of theimportantvegetablesgrowncommerciallyinthe tropicsandoccupythe mostextensiveacreageamongother vegetablesin Indonesian. There are fivespeciesarecommonly cultivatedchiliCapsicumannuum(red pepper), C.frutescensL(cayenne pepper), andC.chinensis, C.bacctum, C.pubescens(chili gendot). However,theeconomicpotentialis a typeof chiliC.annuumandC.frutescensL. The purposeofthis study wastoknow theeffect of the useof plasticmulchoninsectabundanceMyzus persicaeoncropsandcayenne pepper. There arethree treatmentsbeing testedareplantingchiliusingblackplasticmulch(MH), a silverplasticmulch(MP) andplantingwithoutmulchorcontrol(K).The results showedthat theuse ofblack plasticmulchandsilverplasticmulchcannotpreventaphids andwhiteflyinchillicrop, however the presence ofblackplasticmulchandsilverplasticmulchcanreduceboththe insectpopulation. Key words :Cayenne Pepper,Myzus persicae, plastic mulch
Studi Potensi Subak Renon di Denpasar Selatan untuk Pengembangan Agrowisata I GEDE ARYA SANJAYA; COKORDA GEDE ALIT SEMARAJAYA SEMARAJAYA; I NYOMAN GEDE ASTAWA ASTAWA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.1, Januari 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT The Study of Potential of Subak Renon in South Denpasar for Agrotourism Development The purpose of this study is to determine and develop the potential contained in the Village of Renon in general and Subak Renon in particular so it can develop Subak Renon as a region for agrotourism, and to know what kind of recreation that can be developed in Subak Renon. This research is descriptive qualitative. Primary data are obtained from direct observation and interviews, and secondary data are obtained from the study of literature. Based on the results of research on Subak Renon, was found that the natural condition of the site was developed, thus becoming a potential that can support the agrotourism.potential in Subak Renon includes a wide range of commodities, there are farmers activity inside, farm large enough for the development of agrotourism, the infrastructure include Bangun Bagi, irrigation, farm roads, rice paddies, jineng, bale subak, bale timbang, subak temples, original condition thus supporting the development of agrotourism in Subak Renon. Based on the potential contained on the site, includes objects, activities, and facilities, the types of recreation that can be developed, are physical recreation, social recreation, cognitive recreation, and the recreation of natural environment. Keywords : potential, subak, agrotourism.
Toleransi Penundaan Prosesing Terhadap Mutu Fisik dan Mutu Fisiologis Benih Kedelai (Glycine max L. Merril) ROBERTO BOBHOPE ARUAN; I DEWA NYOMAN NYANA; I KETUT SIADI; I GUSTI NGURAH RAKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.2, April 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Tolerance of Processing Delay to Physical and Physiological quality of Soya Bean (Glycine max L. Merril) The aim of this research is to figure out the time of the tolerance processing delay so that the physical quality and the physiological quality of soya bean seeds could be defended. This research was started in April 2017 at Jalan Cekomaria, Denpasar and also at the Lab. Pemuliaan Tanaman dan Teknologi Benih Faculty of Agriculture Udayana University. The design method was used for this research is a randomized complete block design (RCBD) using five treatment and five-time repetitions consist of W0= Without using process, W1= 1 day of Delaying process W2= 2 days of Delaying process, W3 = 3 days of Delaying process, W4 = 4 days of Delaying process. The statistic test and analyzing variance statistical test shows different result, the procedure followed by LSD method (Least Significance Different) with 95% of confidence level using costat program.The result of physical analysis test, shows that the role of the seeds which is without delaying process showing that the percentage of the seeds was 87,36% and the result of 4 days delaying process seeds are 11,256%. The result of the physiological test of the seeds using germinating test was, W0 (95,16%) and W4 (94,72%). The percentage of the vigor will be decreasing, which is W0 (80,52%) and W4 (34,4%). The equality control of the percentage was W0 (90,3%) and W4 (70,68%). Result of the observation of electrical conductivity showing that the lowest point of the electrical conductivity control is W0 (5,112 ? mhos cm¯² g¹) and the highest value of electrical conductivity was shown on the W4 (7,302 ? mhos cm¯² g¹).

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