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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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Pengaruh Rhizobakteria untuk Memacu Pertumbuhan dan Ketahanan Tanaman Kacang Tanah (Arachis hypogaea L.) terhadap Penyakit Bercak serta Karat Daun PANDE MADE GIOPANY; I MADE SUDANA; TRISNA AGUNG PHABIOLA
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

The Effects of Rhizobacteria to Promote the Growth and Peanut Resistance (Arachis hypogaea L.) Against Leaf Spot and Rust DiseasesPeanut (Arachis hypogaea L.) is an important legume plants that produces seeds with high protein and vegetable fat content, as well as many processed into various food products and as a source of vegetable oil. The purpose of this research is to know the effect of rhizobacteria to promote the growth and resistance of the peanut against diseases. The research used a Randomized Completely Block Design with 5 treatments and 5 replicates. The variables observed were plant height, number of branches, number of leaves, content of leaf chlorophyll, number of root nodules, disease intensity, disease intensity suppression, number of pods per plant, weight of pods per plant, dry weight of seeds per plant, dry weight of seeds per harvested area, and peanut yields per hectare. The results showed that all treatments of rhizobacteria used was able to promote the growth and resistance of the peanut against diseases so that peanut yields could be improved. Rhizobacteria RZ 35 and RZ 36 are rhizobacteria that have the best ability than other rhizobacterias. RZ 35 has more ability in improving growth and peanut resistance against diseases, whereas RZ 36 has more ability in improving peanut yields.
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).
Utilization of Essential Oil of Lemongrass (Cymbopogon citratus) as a Bio-pesticide to Control Plutella xylostella (Lepidoptera: Plutellidae) I PUTU SUDIARTA; KETUT SUMIARTHA; NYOMAN SEMADI ANTARA
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

ABSTRAK Pemanfaatan Minyak Atsiri Sereh Dapur (Cymbopogon citratus) sebagai Biopestisida untuk Mengendalikan Plutella xylostella (Lepidoptera: Plutellidae) Informasi tentang efikasi dan pitotoksisitas dari minyak atsiri sereh dapur sangat diperlukan dalam memanfaatkan minyaknya untuk mengendalikan Plutella xylostella. Penelitian efikasi minyak sereh di laboratorium sudah dilakukan sebagai penelitian pendahuluan sebelum melakukan penelitian di lapangan. Penelitian lapangan yang bertujuan untuk mengetahui efikasi dan pitotoksisitas minyak sereh dapur dilakukan di Desa Pancasari, Kecamatan Sukasada, Kabupaten Buleleng (1200 m dpl). Hasil penelitian menunjukan, minyak atsiri sereh dapur pada konsentrasi 10 % menimbulkan gejala terbakar pada daun kubis. Sedangkan pada konsentrasi 2.5 % dan 5 % menunjukan gejala perubahan warna dari hijau menjadi ungu. Tetapi pada konsentrasi rendah 1 %, 0.5 %, dan 0.1 % minyak sereh tidak memiliki pengaruh pitotoksik terhadap tanaman kubis. Pengaruh minyak sereh terhadap populasi P. xylostella menunjukan tidak beda nyata pada konsentrasi rendah. Tetapi pada umumnya dapat menekan populasi P. xylostella dibandingkan dengan kontrol. Berdasarkan penelitian tersebut maka minyak sereh dapur dapat dimanfaatkan sebagai pengendali P. xylostella pada konsentrasi rendah yaitu dibawah konsentrasi 1 %, karena pada konsentrasi tersebut minyak sereh tidak bersifat pitotoksik dan mampu menekan pupulasi P. xylostella di laboratorium maupun di lapangan. Kata kunci: minyak atsiri sereh dapur, Plutella xylostella, efikasi, pitotosisitas
Populasi dan Serangan Hama Polong Kedelai Etiella zinckenella (Treitschke) (Lepidoptera: Pyralidae) yang Diperlakukan dengan Insektisida Berbahan Aktif Klorpirifos 500 g/l dan Sipermetrin 50 g/l NGAKAN PUTU MEIKA RUSYANA; I GUSTI NGURAH BAGUS; ANAK AGUNG AYU AGUNG SRI SUNARI
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

Population and Attack of Soybean pods Etiella zinckenella (Treitschke) (Lepidoptera: Pyralidae) treated Insecticide with Activity Klorpirifos 500 g/l and Sipermetrin 50 g/l The study was conducted to find out the Population and Attack of Soybean pods, Etiella zinckenella (Treitschke) (Lepidoptera: Pyralidae) treated Insecticide with Activity Klorpirifos 500 g/l and Sipermetrin 50 g/l. This research was conducted in Gunaksa Village, Dawan District, Klungkung Regency, from December 2016 until February 2017. The purpose of this research is to know the effect of insecticide active ingredient (Klorpirifos 500 g/l and Sipermetrin 50 g/l) to soybean pest the populations of and the rate of E. zinckenella pests on soybean crops. This study used a randomized block design (RBD), with five treatment levels (concentration) and five replications. The results showed that insecticide with chlorpyrifine 500 g/l and sipermetrin 50 g/l at concentration 1.50 ml/l were able to suppress E. zinckenella and increase production.
Analisis Homologi Fragmen DNA CVPDr dari Jeruk Kinkit Trophasia trifolia Menggunakan BLAST Protein Dan BLAST Nukleotida WHISNU IDA BAGUS; I GEDE PUTU WIRAWAN; I WAYAN ADIARTAYASA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.4, Oktober 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Homology Analysis Of CVPDr DNA Fragment from 13 Citrus Variety in Bali Using Nucleotide Blast And Protein Blast CVPDr from Trhiphasia trifolia is predicted to have to increase resistance fromCVPD, but the mechanism of this DNA is still largely unknown. The first step of DNAanalyzing is by using homology with Nucleotide and Protein BLAST. BLAST canidentify, similarity search, and predict the function of DNA. The goal of this researchis to compare CVPDr DNA fragment from T. Trifolia with sequences from NCBIGenbank and finding it’s significant homology using nucleotide BLAST and proteinBLAST. Nucleotide BLAST result shows that “DNA Citrus nobilis cultivar Tabanancitrus vein phloem degeneration r protein (CVPDr) gene, partial cds” have the highesthomologs, the other sequences that’s shown by BLAST does not have high enoughsimilarity to be homologus. Protein BLAST show “citrus vein phloem degeneration rprotein [Citrus nobilis]” have the highest homologs, but even if the other BLAST resulthave percentage of similarity lower than 55% there are still possibility of structuralhomolog because the E value is lower than 0.01.
Pengaruh Pemberian Beberapa Formula Pupuk untuk Peningkatan Produksi dan Mutu Sawi Hijau (brassica juncea l.) di Tanah Inceptisol, Desa Pegok, Denpasar IRNAWATI PURBA; INDAYATI LANYA; A.A. NYOMAN SUPADMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.5, No.3, Juli 2016
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Impact Of Several Fertilizer Formula For IncreaseTheProduction and Quality Of Green Mustard (Brassica juncea L.) in Inceptisol Soil, Pegok Village, DenpasarThis research aims to know the impact of several fertilizer formulas towards production and quality increase of green mustard in inceptisol soil, and the chemical characters of Pegok land. This research was conducted in September until December 2015 at the Experimental Garden Faculty of Agriculture, and Soil Laboratory and Environmental Sciences, Faculty of Agriculture, Udayana University. The experiment used Randomized Block Design (RBD) and the using analysis of variance (ANOVA) with program Costat. The parameter observed in this research was divided into three observations, they were the height of plants, the weight of fresh plants sample, the weight of fresh plants. The plants quality contains of chlorophil, water content and plants storability. The observartion of chemical characters of the plants encompasses pH, KTK, KB, nutrient content N-total, P- available, K-available, Ca, Mg, C-Organic, as well as soil electric conductivity. The result of statistical analysis shows that giving some fertilizer formulas has significant impact for all production and quality parameter namely leaf chlorophyll however does not give real impact towards water content and plants storability. The impact of giving some fertilizer formulasfor mineral fertilizer treatment increase the residual effect of several nutrient contents namely Ca, Mg, pH and highest DHL, whilst KTK, KB, C-organic and highest N-Total were obtained from the organic fertilizer treatment.
Pengaruh Beberapa Jenis Ekstrak Daun Gulma terhadap Biologi Ulat Krop Kubis (Crocidolomia pavonana F.) di Laboratorium ANAK AGUNG GEDE GARBA YOGANTARA; I NYOMAN WIJAYA; MADE SRITAMIN
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

Types Of Weed Leaf Extract On The Development Of Cabbage Caterpillar (Crocidolomia pavonana F.) In Laboratory The research was conducted in laboratory of Plant Pest and Disease Faculty of Agriculture Udayana University, from October 2016 until February 2017 to test the three types of weed leaf extracts namely Lantana camara leaf, Wedelia trilobata leaf, Chromolaena odorata leaf and to know the biological development of caterpillar Crocidolomia pavonana after three types of weed leaf extracts were applied. This research used Completely Randomized Design (RAL) with 3 treatment of leaf extract at 50% concentration and 1 type without treatment (control), each repetition was done 10 times. The observation is done until the larvae do nothing activity (dead), or until it becomes imago. Testing three types of weed leaf extracts showed by the following results: the biological development of caterpillars C. pavonana with leaf extract application of L. camara gave the influence of the development of larvae into pupa very slow because it takes 16 days to become a pupa, while W. trilobata leaf extract only takes 12 days to become a pupa. However, with the leaf extract of C. odorata larvae did not reach the pupa and imago phase because this extract resulted in 100% death in the larval phase.
Pengaruh Morfometri DAS terhadap Debit dan Sedimentasi DAS Yeh Ho I DEWA PUTU GDE ABIJANA DHARMANANTA; R. SUYARTO; NI MADE TRIGUNASIH
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

Impact of Watershed Morphometric to Debit and Suspended Load of Yeh Ho Watershed Watershed (DAS) is a land area which is a unity with the river and its tributaries, which functions to accommodate, store and drain water. Morphometryand physical properties of the watershed give effect to changes in discharge and river sediment content. With the aim of knowing the effect of water level on Yeh Ho watershed discharge and sedimentation and the correlation between morphometry and the physical condition of the watershed by ratting curve discharge and sediment content. This research was conducted in the Yeh Ho river flow area in Tabanan Regency from November - February 2018 with methods: (1) literature study, (2) analysis of satellite imagery with the world view image of the 2013-2015 observation year, (3) analysis of regional characteristics river flow using DEM imagery (digital elevation mode), (4) debit analysis and (5) analysis of sediment content. The results of the DEM analysis determine the characteristics and watershed boundaries which are then analyzed to produce morphometry and physical properties of the watershedwith data sources from (BAPPEDA Tabanan Regency). The results of the analysis show that the water level has an effect of 97% on the discharge and sedimentcontent. The correlation of morphometry and physical condition of watershed with ratting curve discharge and sediment content was expressed in morphometric scores of 120 (Good watershed conditions) and physical conditions in good and very good categories.
Efikasi Pestisida Nabati Minyak Atsiri Tanaman Tropis terhadap Mortalitas Ulat Bulu Gempinis I GEDE SILA ADNYANA; KETUT SUMIARTHA; I PUTU SUDIARTA
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 Efficacy of Essential Oils Extracted from Tropical Plants to Hairy Caterpillar Efficacy of some essential oils extracted from tropical plant to hairy caterpillar was conducted in order to find out the method to control population of hairy caterpillar which were increased drastically in 2010 to 2011 in Indonesia. The insect were reported to attack some plants such as: wooden plants; horticulture crops, especially, mango trees and some ornamental plants. Although, these caterpillar have not been found to attack food crops. These insects arising some problems: scared as well as skin etches, etc., especially when these insects entering the communities residence. To control the caterpillar, recently, peoples used chemical insecticide, however the impact of chemicals insecticide is dangerous to human being, livestock, and environmental. Therefore to minimizing those problems, the control methods should be environmental-friendly and safe against human being. One of those methods is utilizing the botanical pesticide which is extracted from tropical plants. Three of topical plants such as: citronellagrass (Cymbopogon nardus), lemongrass (Cymbopogon citratus), neem (Azadirachta indica), were done in this experiment to utilize it as botanical pesticide. The experiment result shown at the concentration 10%, all of the essential oils are effective to kill the caterpillar (90-100%). Therefore the examinations of low concentrations of essential oils were conducted (5, 2, and 1%). The result of 1% concentration of lemongrass was found most effective to kill caterpillar (98%). The examinations for lemongrass under 1% concentration (0.75, 0.50, and 0.25%) were continued. From those examinations, under concentration of 0.50 % the caterpillar was killed 90%, while the concentration of 0.25% was not effective (50%). Keywords: hairy caterpillar, essential oil
Identifikasi Penyebab Penyakit Layu pada Tanaman Stroberi (Fragaria sp.) di Desa Pancasari dan Potensi Pengendaliannya dengan Mikroba Antagonis I GUSTI AYU DEVI VALENIA SARI; GUSTI NGURAH ALIT SUSANTA WIRYA; I PUTU SUDIARTA
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

Identification of the causes of lute diseases in strawberry plants (Fragaria sp.) In Pancasari Village And Control Potential By Microbial Antagonists Strawberries (Fragaria sp.) Is one of the most popular fruits of the community because it has many benefits. Strawberry development in Bali is mostly done in the Bedugul area including Pancasari Village because it has a suitable climate for the development of strawberry plants. This study aims to identify the wilting disease that causes a decline in the yield of strawberry plants that reach 95% in Pancasari Village, Sukasada District, Buleleng Regency. The use of synthetic chemical pesticides is the only way that farmers do in Bedugul area to suppress the strawberry disease. Several studies have reported that unwise and excessive use of synthetic chemical pesticides can cause problems and disrupt environmental balance. Control of plant diseases using microbial antagonists is one of the alternative of environmentally friendly control The method used is isolation, identification, pathogenity test and inhibit microbe antagonistic inhibitory test by dual culture technique. Research activities included (1) sampling of symptomatic plants, (2) isolation and identification of associated fungi at root of strawberry plant, (3) isolate fungal pathogenic test (4) isolation of microbial antagonistic candidate, (5) In Vitro test of antagonistic microbial ability Controlling the pathogen of wilt disease in strawberry plants.The results showed that, mushrooms associated with rooting of strawberry plants were pathogens of the genus Verticillium sp. In Vitro antagonistic test with Verticillium sp. Showed the results in which microbial antagonists were able to suppress pathogen growth by 64%. Anatagonic microbes from the fungus Trichoderma sp. Able to suppress the growth of pathogens of wilt disease (Verticillium sp.). Trichoderma sp. Has the ability to grow quickly Trichoderma sp. Also produce various compounds or enzymes that serve to inhibit or break down the cell walls of plant pathogens.

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