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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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Kajian Potensi Bakteri Lumpur Lapindo sebagai Agens Hayati terhadap Pyricularia oryzae dan Agens Biostimulan pada Tanaman Padi ROYAN PRACAHYO; KHAMDAN KHALIMI; GEDE WIJANA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.4, Oktober 2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT The Study of Potential of Lapindo Mud Bacteria as Natural Agent Pyricularia oryzae and Biostimulant agent on Rice Rice (Oryza sativa L.) is the staple food of more than 60% of the world’s population. One of the cause for the low productivity of rice in indonesia is the occurrences of rice blast disease caused by Pycularia oryzae . This study was done to evaluate the potential use of  bacteria isolated from Lapindo mud as bio-control  agents  against  P. oryzae and bio-stimulant agents in rice plant. The result showed that three isolate of  bacteria isolated from Lapindo mud namely AA1, 20M14, and ZB11 significantly (P<0,05) inhibited the growth of  P. oryzae on Potato Dextrose Agar (PDA) medium with  inhibitory  activity  varied  85,07%, 86,58%, and 70,82%. Ten isolates of  bacterial  isolated from Lapindo mud significantly improved the growth of rice seedling. In which the plant heigth, number of root, content of chlorophyll in the leaf, number of  lateral  root  length of root, and the fresh and dry weight of plant significantly (P<0,05) higher on treated plant when compared to control. This is result suggested that three isolates of bacteria isolate from Lapindo mud can be further developed as bio-control agents to inhibit the P. oryzae growth and ten isolates of bacteria isolated from Lapindo mud can be used as bio-stimulan agents.   Key words: lapindo mud bacteria, Pyricularia oryzae, rice
Pemetaan Kualitas Tanah pada Lahan Kebun Campuran dengan Geography Information System (GIS) di Kecamatan Tegallalang, Kabupaten Gianyar MOH SAIFULLOH; I KETUT SARDIANA; A.A. NYOMAN SUPADMA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.6, No.3, Juli 2017
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

The Mapping of Soil Quality Under Mixed Dry Land Farming Using Geography Information System (GIS) at Tegallalang, Gianyar Regency Mapping of soil quality undermixed dry land farming area using GIS was held in Tegallalang, Gianyar Regency on October 2016 – January 2017. This research implementing exploratory method on the purposive land use followed by laboratory soil analysis. Soil samples were randomly taken on each homogeneous land units on the map developed by overlaying slope, soil type, and land use maps. The following soil quality indicators as the minimum data set (MDS) were measured: soil bulk density, porosity, field capacity water content, texture, pH, C-Organic, CEC, base saturation, nutrients (N, P and K), and C-biomass. The values of soil quality were mapping using QGIS 2.18.0 and refer to land management direction. The results showed that the soil quality in the research area considered being good and medium level. The good soil quality present on land units laid down on the wavy slope had different land cover vegetation, different land management systems (fertilizer, without fertilizer, soil tillage and without soil tillage). The medium soil quality was including land units that present on steep slope, had different land cover vegetation without land managements. The limiting factors of soil quality were texture, C-Organic, CEC, base saturation, N and C-biomass. It was recommended to tillage the soil using hoe and applying organic fertilizer, Urea, and dolomite on the farming area.
Struktur Populasi Keong Murbei Pomacea Spp. (Mesogastropoda : Ampullariidae) Pada Tanaman Padi Sawah di Kabupaten Jembrana Provinsi Bali I PUTU DEDI ADNYANA; I WAYAN SUPARTHA; I MADE MEGA ADNYANA
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

Population Structure of Murbei Conch Pomacea spp. (Mesogastropoda: Ampullariidae) On Paddy Rice Field in Jembrana District of Bali Province The purpose of this study is to determine the population structure of mulberry snails. This research was carried out in October 2017 - March 2018. The method used in this study was a survey method with a diagonal model. Biological parameters are carried out by randomly taking egg groups and maintaining them in the Integrated Pest and Disease Laboratory, Faculty of Agriculture, Udayana University. The results showed that the population density of P. canalicuta in the group of eggs and conch with a size (0.5-1cm), (> 1-2.5cm), (> 2.5-4cm) higher in Subak Pangyangan and lower in Subak Tegalwani. Distribution of P. canaliculata in Tegal Wani Subak and Pangyagan Subak has a groups pattern. The age structure of P. canaliculata in Subak Tegal Wani and Subak Pangyangan from egg groups aged 7-14 days, (0.5-1 cm) aged 15-25 days, (> 1 - 2.5 cm) aged 26-49 days, (> 2.5 - 4 cm) 50-60 days old. The highest peak of the population development of P. canalicuta in Subak Tegal Wani occurs at the age of the plant 8 weeks after planting, while the highest peak in Subak Pangyangan occurs at the age of the plant 6 weeks after planting.
Interpretasi Citra Satelit Landsat 8 Untuk Identifikasi Kerusakan Hutan Mangrove di Taman Hutan Raya Ngurah Rai Bali I WAYAN RUMADA; A. A. ISTRI KESUMADEWI; R. SUYARTO
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.3, Juli 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT A study of Landsat 8 satellite image interpretation for identification of mangrove forest destruction in Forest Park Ngurah Rai Bali A study of Landsat 8 satellite image interpretation for identification of mangrove forest destruction in Forest Park Ngurah Rai Bali, was conducted in March-July 2014. The study was aimed to determine the damage and condition of the mangrove forest in 2013. Remote sensing techniques was applied through analysis and interpretation of NDVI (Normalized Difference Vegetation Index). The landsat 8 image that was used in this study issued by (USGS 2013), and the path and row was (116/66). The NDVI result was confirmed by purposive field survey on selected area. The results of the study showed that the damage on mangrove Forests can be classified into three classes based on NDVI analysis. These classification was as follows (a) severely damaged with an area of ??20,25 hectares, (b) slightly damaged with an area of ??22,86 hectares, and (c) not damaged with an area of ??1.042,02 Ha. According to this finding the accuracy of NDVI analysis for identification mangrove canopy density in this study was 75% for mangrove land use type 90%. Keywords: NDVI (Normalized Difference Vegetation Index), Satellite Imagery, Mangrove Forest Damage Level.
Keragaman dan Kelimpahan Populasi Liriomyza spp. (Diptera : Agromyzidae) serta Parasitoidnya pada Pertanaman Sayuran Dataran Sedang dan Tinggi di Bali I PUTU ADNYA PRATAMA; I WAYAN SUSILA; I WAYAN SUPARTHA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.4, Oktober 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT The Diversity and Abundance of Liriomyza spp. (Diptera : Agromyzidae) and their Parasitoids on Middlelands and Highlands Vegetable Crops in Bali This research was conducted in the laboratory of Integrated Plant Pest and Disease Management, Department of Plant Protection, Faculty of Agriculture, Udayana University. The purpose of this research is to know the abundance, diversity and distribution populations of Liriomyza spp. and their parasitoids on middle- and highlands vegetable crops in Bali. Results of the research indicated that there are two  species of Liriomyza and five parasitoids associated with vegetable crops on middle- and highlands in Bali. Both species of Liriomyza are L. sativae and L. huidobrensis. The highest abundance populations of L. sativae was found on tomato plants, whereas L. huidobrensis found on potato plants. The research also indicated that there were five species of parasitoids associated with L. sativae and L. huidobrensis on middle- and highlands vegetable crops in Bali. Those parasitoids were Neochrysocharis formosa, Neochrysocharis okazakii, Hemiptarsenus varicornis, Asecodes deluchii (Eulophidae) and Opius sp. (Braconidae). Among those, N. okazakii, N. formosa and Opius sp. were the most dominant parasitoids associated with L. sativae and L. huidobrensis, showed by their highly populations abundance and parasitization level to the host. Key words : Diversity, Populations abundance, Liriomyza spp., vegetable crops, Parasitoids.
Daftar Isi JAT Vol. 7, No. 2, April 2018 Pengelola JAT
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

Daftar Isi JAT Vol. 7, No. 2, April 2018
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.
Deteksi Keberadaan Penyakit CVPD (Citrus Vein Phloem Degeneration) dengan Teknik PCR (Polymerase Chain Reaction) di Dusun Untalan Desa Jungutan Kecamatan Bebandem Kabupaten Karangasem I KADEK PURNAWIRAWAN PUTRA; WAYAN ADIARTAYASA; I MADE MEGA ADNYANA
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

Detection of CVPD (Citrus Vein Phloem Degeneration) Disease Using PCR Technique of Citrus from Untalan Sub Village, Jungutan Village, Bebandem District, Karangasem Regency This research aims to know about presentation of CVPD disease on citrus plants and detect CVPD disease using PCR technique with specific primer called 16S rDNA. This research was conducted at Laboratory of Genetics Resource and Biology Moleculer, Udayana University. Result for visual monitoring of presentation in CVPD symptom in four locations is 25%, 37%, 27%, 19%, and the average is 27%. The result for average the presentation of CVPD symptom in the shoot of citrus in each locations is 7.9%, 15.73%, 8.9%, and 7.07%. The isolation of leaves citrus DNA were appeared on 1% agarose in electrophoresis showed DNA band. The result of DNA amplified that were appeared on 1% agarose in electrophoresis showed DNA bands 1160 bp. 3 samples from 4 with specific symptom of CVPD gave positive PCR reaction. DNA Bands 1160 bp is expression by Liberobacter asiaticum, than the sample from Untalan Sub Village were detected positive for the Liberobacter asiaticum and the samples were infected by CVPD disease.
Aplikasi Remote Sensing dan Geographic Information System untuk Pemetaan Potensi Sumberdaya Wilayah Penunjang Pariwisata di Kawasan Penatih Kota Denpasar A.A. INTANG PUJA LESTARIANI; INDAYATI LANYA; TATI BUDI KUSMIYARTI
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

Remote Sensing and GIS Applications to Support Regional Resource Potential Mapping Tourism in Region Penatih Denpasar City Government programs to increase regional development by promoting the potential of the whole village are being improved. The development is intended to utilize the space and resources to support optimal in public life in accordance with the objectives and the expected goals. Penatih village is an area designated as rural tourism in 1995, but until recently there has been also developed. In support of tourism development in the region, information regarding potential in Penatih attraction needs in the review. In this era of globalization is indispensable information technology based both regions and potential. This study aims to assist the government in development in the village Penatih with the information potential of tourism in the region. The technology can be used to inform potential of tourism in the region Penatih that is Penatih Remote Sensing and Geographic Information System (GIS). The results obtained from this research in the form of maps are Subak map, Village map, Agro Tourism map, Culture Tourism Potential map and Tourism map in Coach Area.
Cover 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

Cover JAT Vol. 8, No. 2, April 2019

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