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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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Analisis Kinerja Daerah Aliran Sungai Berdasarkan Indikator Penggunaan Lahan dan Debit Air pada DAS Unda EDOARDO WAHYUDI TOBAN; I NYOMAN SUNARTA; NI MADE TRIGUNASIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.4, Oktober 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Performance Analysis of Watershed Indicators Based On Land Use and Discharge of Water in DAS UndaWatershed (DAS) is an integral ecosystem elements consist primarily of natural resources, water and vegetation and human resources as users of those resources. Unda watershed allegedly decreased function, such as the decline in forest area, increasing critical lands and known to potentially flood. This research was conducted in order to deternine Unda watershed response to changes of use of land in the years of 2006-2013 and the water discharge conditions. DAS performance indicators used are the Precentage of Vegetation Cover (PVC) and Coefficient of Flow Regime (CFR). Method of research is descriptive comparative view of the two parameters, that is the use of land and water discharge. The results showed the prencentage of vegetation cover in the medium category ranges from 55,07% and deceased by 1,87 in 2013. Indicator coefficient of flow regimes gained 67,66 value before it is published Plan of Integrated Watershed Management (2006-2009) included in the medium category and scores 18,8 after being issued Plan of Integrated Watershed Management (2010-2013) with both categories. CFR suspected impairment is not only influenced by the value of the percentage of vegetation cover, but is also influenced by othe factors, such as climate, soil type, vegetation type, the growth phase, vegetation density, how management and others.
Pengaruh Pemberian Beberapa Konsentrasi Antitranspiran Chitosan Terhadap Kesegaran Bunga Teratai (Nymphaea caerulea) I MADE DWI DARMAYUDA; I NYOMAN GEDE ASTAWA; I MADE SUKEWIJAYA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.1, Januari 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Effect of Several Concentrations of Antitranspirant Chitosan on Freshness of Nymphaea Flower (Nymphaea caerulea) The purpose of this research was to determine the optimum concentration of Chitosan in extending the freshness of the nymphaea flower. This research was conducted at Postharvest Engineering Laboratory, Faculty of Agricultural Technology, Udayana University Denpasar from November 2016 until January 2017. The design used was completely random design (RAL). This research consist was of one factor that was chitosan with five namely C0 = Chitosan 0 ml/L, C1 = chitosan 2,5 ml/L, C2 = chitosan 5 ml/L, C3 = chitosan 7,5 ml/L, C4 = chitosan 10 ml/L. Each treatment were consisted of five replicates, so the experiment was consisted of 25 experimental units and each experimental unit was consisted of two nymphaea stem cut. There were four observed variables, namely weight loss, total absorbed water, duration of freshness of interest, and respiration rate. The results showed that chitosan treatment had a very significant effect on all observed variables. Treatment of C4 (Chitosan 10 ml / L) was not optimum in extending the freshness of the nymphaea, but the concentration of 10 ml / L was the longest concentration to extend the nymphaea flower concentration compared to the other concentration (4.6 days).
Daftar Isi JAT Vol. 8, No. 2, April 2019 Pengelola JAT
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.2, April 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Daftar Isi JAT Vol. 8, No. 2, April 2019
Analisis Kualitas Kompos Limbah Upacara Agama Hindu di Denpasar dengan EM4 sebagai Dekomposer I MADE WERAYOGA; I WAYAN DANA ATMAJA; A A NGURAH GEDE SUWASTIKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.2, April 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Analysis of the Compost Quality of Hindu Ceremony Wastein Denpasar with EM4 as a DekomposerThe aim of this research was to find out best quality of compost made of by the waste of Hindu ceremony in Denpasar, cow dung, and bran, with EM4 as a decomposer. The research was conducted on November 2014 until June 2015, located at pegok experimental field, faculty of agriculture, Udayana university. The design used was Randomized block design with two factors, the first factor was combination the waste of Hindu ceremony and the second factor was the decomposer consisted of without decomposer and with EM4 with dose of 200 mL (dilution 20 mL EM4 + 10 g sugar + 1 liter water). Compost quality was known by counting the total bacterial population, total fungi population, and respiration, measuring the temperature, water content, weight, structure, smell, color, measuring the content of total N, total P, total K, C-organic, the C/N ratio, and the pH. The result of research based on statistical analysis show that interaction impact between combination the Waste of Hindu ceremony and decomposer only have real influence on the parameter of total bacterial population, total fungi population, N-total, and P-total of compos. The research resulting in several conclusions that is the treatment of 75% the waste of Hindu ceremony + 15% cow dung +10%bran presenting the best quality of compost showed by the height of total bacterial population ( 17,38 x 108 cpu g-1 of compost), highest N-total (1,82%), the lowest content of C-organic (10,39%), highest P-total (83,71 mg/100g).
Isolasi dan Identifikasi Agrobacterium Tumefaciens pada Tanaman Mawar (Rosa sp.). NADIAH SILITONGA; I GEDE PUTU WIRAWAN; I GEDE KETUT SUSRAMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.3, Juli 2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Isolation and Identification of Agrobacterium tumefaciens At Plant roses (Rosa sp.). Agrobacterium tumefaciens caused crown gall tumor in many of dicotyledonous plants. The purpose of this study tried to isolate and identify the A. tumefaciens from rose plant. Various techniques were used such as selection media, colonies shape and color, Koch's postulate test, DNA isolation and agarose gel elektroforesis. The results of this study showed that A. tumefaciens can be isolated through culturing in LB medium and selection AB medium that was specific for A. tumefaciens. The isolate caused crown gall tumor on carrot slice 3 weeks after inoculation by using a modified Koch’s postulate test. The characteristics of colony formed in this research are round shaped, cream coloured with pink tint, smooth edge, and convex elevation. DNA isolation and its running in agarose gel electroforesis showed positive result.   Key words : Agrobacterium tumefaciens, AB medium and Agarose gel electroforesis.
Pengaruh Rhizobakteria Pelarut Fosfat Terhadap Pertumbuhan dan Ketahanan Tanaman Kedelai (Glycine max (L) Merill) terhadap Patogen Virus Mosaic PUTU MAHADIPTHA; I MADE SUDANA; I GUSTI NGURAH RAKA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.2, April 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The impact of solvent rhizobacteria phosphate on the growth and resistence of soybean (Glycine max (L.) Merill) towards mosaic virus phatogen This study aims to obtain isolates rizobakteri are able to increase the growth and survival of soybean plants. The design used was a randomized block design (RAK) with 14 treatments and 3 replications. The treatment consisted of 13 isolates of rhizobacteria and one as a control (no isolates rhizobakteria). This research is a pot with plant growth and survival variables include; plant height, number of branches, number of leaves, chlorophyll content, number of pods, number of seeds and seed weight, and predict the yield per hectare, phenol, salicylic acid and peroxidase.The results showed three isolates rizobakteri, which isolates Rf 53, Rf 6 and Rf 26 has a better ability than the other rhisobakteria isolates. The third isolates capable of increased plant height, number of branches, number of leaves, chlorophyll, number of pods, number of seeds and seed weight, and predict the yield per hectare. Events systemic acquired resistance (SAR) in plants, namely the accumulation of phenolic compounds, salicylic acid, peroxide, and jasmonik acid. Jasmonic acids able to produces related-proteins (PR-proteins) which is really functional for plants resistance towards pests or diseases.
Pengaruh Umur Bibit Batang Bawah dan Teknik Penyambungan terhadap Pertumbuhan Bibit Jambu Biji (Psidium guajava L.) I WAYAN ADI WIRAWAN; I PUTU DHARMA; ANAK AGUNG MADE ASTININGSIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.7, No.4, Oktober 2018
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Influence of Seedling Age of Rootstock and Technique of Grafting to Growth of Guava Seedlings (Psidium guajava L.) The age of rootstock seedlings and grafting techniques can influence the success of plant propagation by grafting. The alternative that can be done is to use some age of rootstock seedlings and the technique of grafting in the propagation of guava plants. The experiment was conducted in farmer's garden located in Banjar Tiyingan, Pelaga Village, Petang Dist. Badung, Bali. The research was started from May 29, 2017 - August 11, 2017. The research used factorial Randomized Block Design (RBD).The first factor was the age of seedlings of guava rootstock, with the age of 3, 4 and 5 month seedlings and the second factor was the V grafting technique and the Cip grafting technique. The result of the research showed that the interaction between the treatment of seed aged and the grafting technique had significant effect on the variable of plant age 75 days after grafted but on the other variable has not significant effect. Age of real seeds can increase the percentage of live grafting, the number of buds at seedling aged 60 days after grafting, the long of buds at aged 45 days after grafting,the diameter of buds at aged 60 and 75 days after grafting. Age of seeds 5 months provide the real growth better than 3 months and 4 months. The real grafting technique can increase the number of buds at seedling aged 30days after grafting, the long of buds at aged 30 days after grafting, totally leaves of the plants at aged 45 and 75 days after grafting, buds’ diameter in each observations, leaf area on eachplantataged 45 days after grafting. The real V grafting technique provide the growth of guava seeds better than the Cip grafting technique.
Pengaruh Media dan Umur Biakan Jamur Metarhizium anisopliae M. terhadap Tingkat Kematian Larva Oryctes rhinoceros L. (Scarabaeidae ; Coleoptera) NI MADE WINDA UTARI; PUTU SUDIARTA; I GUSTI NGURAH BAGUS
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.2, April 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRAK Influence of Media and Fungus Metarhizium anisopliae M. Age culture to Larvae Mortality of Oryctes rhinoceros L. (Scarabaeidae; Coleoptera) Oryctes rhinoceros L. is importance pest that can be serious problem to coconut plantations. The utilization of fungus Metarhizium anisopliae M. as biological agents has became a recommended alternative choice considering its selective and safe infect to ecosystem. The purposes of this study in order to find out the effectiveness rates of media and culture age of fungus M. anisopliae on   O. rhinoceros larvae mortality and to find out the culture age of M. anisopliae in corn and rice media that cause O. rhinoceros larvae mortality. This study used in vitro and direct trial method. The result showing that fungus Metarhizium anisopliae in culture age of 4 weeks have ability to infect the larvae since 6th and on  14th days after application the all of  larvae was infected. On the other hand the fungus in culture age of 3 weeks the  larvae was infected since 7th day after application and on 21st days after application the all larvae was infected. Keywords:, Oryctes rhinoceros L. Metarhizium anisopliae M.
Analisis Kualitas Larutan Mol (Mikoorganisme Lokal) Berbasis Daun Gamal (Gliricidia Sepium) IDA AYU YADNYA SENI; I WAYAN DANA ATMAJA; NI WAYAN SRI SUTARI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.2, April 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Quality Analysis of MOL (Local Microorganism) Solution Based on Gamal (Gliricidia sepium) Leaves The purpose of this research was to find out the effects of gamal (Gliricidia sepium) leaves concentration and term of fermentation to the quality of MOL (local microorganism) solution. The research was held on September 2012 until November 2012, at Soil Laboratory, Faculty of Agriculture, Udayana University. Randomizing block design with two factors, including gamal leaves concentration (K) and fermentation term (F). The observation parameters of this research were total population of bacteria, total population of fungi, N-total, C-organic, C/N ratio. The analysis of gamal leaves concentration and the fermentation term was highly significant (P<0,01) affect. The total high population of bacteria in the K1 treatment be found the treatment F3 , 4,30 x 108 cfu ml-1, the total high population of bacteria in the K2 treatment can be found in the F3 treatment is 6,37 x 108 cfu ml-1, the total high of population of bacteria in the K3 treatment can be found in the F3 treatment is 8,63 x 108 cfu ml-1, the total population of bacteria in the K4 can be found in the F3 treatment is 9,07 x 108 cfu ml-1. The total population of fungi in the K1 treatment can be found in the F3 is 8,23 x 105 cfu ml-1, the total population of fungi in the K2 treatment can be found in the F3 is 8,27 x 105 cfu ml-1, the total population of fungi in the K3 treatment can be found in the F3 is treatment is 8,67 x 105 cfu ml-1, the total population of fungi in the K4 treatment can be found F3 treatment is 10,20 x 105 cfu ml-1. Concentration of 600 g/l gamal leaves on three weeks of fermentation have the best quality of mol solution. Keywords: Local Microorganisms (MOL), gamal leaves, fermentation term
Pengaruh Inokulasi Trichoderma sp. Indigenus terhadap Penyakit Akar Gada dan Pertumbuhan Tanaman Kubis (Brassica oleracea L.) NI PUTU MERRY SENI ANTARI; NI MADE PUSPAWATI; I KETUT SUADA
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

The Influence of Indigenous Trichoderma sp. Inoculation against Clubroot and the Growth of Cabbages (Brassica oleracea L.) The Cabbage (Brassica oleracea L.) is a plant that contains many vitamins and minerals needed by human. The problem which often experienced by cabbage farmers is clubroot deseases that caused by pathogenic Plasmodiophora brassicae Worr. Eco-friendly controls are needed so as not to adversely affect ecosystems by using natural enemies of the pathogen such as Trichoderma sp. The purpose of this research was to obtain the type Trichoderma sp. which effectively suppress clubroot and increase the growth of cabbage plants. The results showed that the most effective isolate was isolate from zucchini plant (Cucurbita pepo L.) rhizosphere (T1), followed by tomato plant (Lycopersicon esculentum L.) rhizosphere (T2), romana plant (Lactuca sativa L. var. longifolia) rhizosphere (T4), and from the spinach plant (Spinacia oleracea L.) rhizosphere (T9). The isolates were able to decrease clubroot and promote cabbage plant growth as well.

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