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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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Evaluasi Indeks Kenyamanan Taman Kota (Lapangan Puputan Badung I Gusti Ngurah Made Agung) ROHMAN HADI; KOMANG ARTHAWA LILA; I GUSTI ALIT GUNADI
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 The Comfort Index Evaluation of a City Park: Case Study of Puputan Badung I Gusti Ngurah Made Agung Square, Denpasar - Bali Puputan Badung Square besides of its historical value, it also has an important role as a balance to the city landscape in the form of green open space. It is therefore necessary to evaluate the comfort index of Puputan Badung Square. The purpose of this study is to see the thermal comfort index at Puputan Badung Square, which serves as a city park of Denpasar. The study also sees how vegetation cover has effect on the comfort index in Puputan Badung Square. Moreover, the thermal comfort aspect from the perception of visitors is also measured. The comfort index of this study is measured by using the Thermal Humidity Index (THI) method. The study site is divided in grids of 24 sample plots. The visitors’ perception data of thermal comfort are tabulated, calculated, and tested by using the percentage (%) method and chi square test. The thermal comfort index in Puputan Badung Square shows that the values in May 2012 can be categorized as comfortable. The thermal comfort index in this case besides being affected by the microclimate, it is also affected by the dominance of trees in the observation plots. Keywords: city park, green open spaces, comfort index,
Uji Kemampuan Beberapa Isolat Rhizobakteria untuk Meningkatkan Pertumbuhan dan Hasil Kedelai (Glycine Max (L)Merill) AYU GEK MIRAH LESTIANINGRUM; I GUSTI NGURAH RAKA; I DEWA NYOMAN NYANA
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

Test Capabilities some Isolate Rhizobacteria for Enhancing the Growth and Yield of Soybean (Glycine max L. Merill)This study aims to get the isolates of rhizobacteria that have a better ability to increase growth and yield of soybean. Randomized block design was used with 14 treatments, which 13 are treated using rhizobacteria isolates from different plants root and one without isolates of rhizobacteria. Each treatment was repeated three times. This research was conductedin the pots with observations of the growth and yield of soybean that includes; plant height, leaf number, number of branches, chlorophyll, the number of nodules, dry weight of the plant part above the ground and below the ground, the number of pods, number of seeds, seed weight, and predict the outcome of soybeans per hectare. The result showed that three isolates rhizobacteria who have better abilities compared to other isolates rhizobacteria to improve the growth and yield of soybean that isolates R53, R6, and R26, with its ability to improve; plant height, number of branches, number of leaves, chlorophyll, the number of nodules, the number of dry weight of the plant above ground or below ground, the number of pods, number of seeds, seed weight and better ability to increase soybean yield per hectare. In addition to these three isolates are also two isolates rhizobakteria which only has the ability to increase soybean yield that isolates R10 and R11. The five isolates rhizobakteria ( R53, R6, R26, R10, dan R11 ) can be regarded as rhizobateria were able to spur the growth and yield soy called PGPR bacteria .
Deteksi Penyakit Tanaman Cabai Rawit (Capsicum frutescens L.) yang Tumbuh Disekitar Tanaman Jeruk Bergejala Citrus Vein Phloem Degeneration (CVPD) Menggunakan Teknik Polymerase Chain Reaction (PCR) NI KADEK DWI PASARI; I GEDE PUTU WIRAWAN; MADE SRITAMIN
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

Detection of Chilli plant (Capsicum frutescens L.) which Grow in the Area of Citrus Cultivation that had symptoms of Citrus Vein Phloem Degeneration (CVPD) Using Polymerase Chain Reaction (PCR) Technique Liberibacter bacteria live and thrive inside the phloem tissue CVPD affected plants, the bacteria exhibit a progressive degeneration of the phloem tissue that inhibit phloem nutrient transport through the entire plan.. As the attack of Liberibacterasiaticus cause Citrus Vein Phloem Degeneration (CVPD) disease in citrus plant, it is necessary to do research on the chilli plant around citrus plant area to know whether bacteria of Liberibacter also attack the chilli plant by using PCR.The results of this study indicate that the chilli plants with CVPD symptoms which are suspected to be caused by the bacterium Liberibacter by usingLiberibacter asiaticus primer and Liberibacter solanaceae which is them specific primer of 16S rDNA are not proven. The result showed chilli plants with similar symptom to CVPD in Mangguh village, Kintamani sub-district were not to be caused by Liberibacter asiaticus and Liberibactersolanaceae.
Organogenesis Tanaman Bawang Merah (Allium ascalonicum L.) Menggunakan Umbi Secara In Vitro pada Media Dasar Murashige and Skoog yang Diperkaya Vitamin B5 dengan Naftalene Acetic Acid dan 6-Benzyl Amino Purine KATARINA IKA NOVIANITA; MADE SRITAMIN; WAYAN ADIARTAYASA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.8, No.3, Juli 2019
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Organogenesis of Shallot Plant (Allium ascalonicum L.) Using Shallot Bulb with In Vitro Method on Murashige and Skoog Basic Media that Enriched by Vitamin B5 with Naftalene Acetic Acid and 6-Benzyl Amino Purine This study was conducted to determine the effect of the combination of NAA (Naftalene Acetic Acid) and BAP (6-Benzyl Amino Purine) in MS media which can stimulate organogenesis in the onion (Allium ascalonicum L.) Biru Lancor variety in vitro. This experiment used four treatments, namely P1 (NAA 1 mg / L + BAP 2 mg / L), P2 (NAA 2 mg / L + BAP 2 mg / L), P3 (Vitamin B5 + NAA 1 mg / L + BAP 1) mg / L), and P4 (Vitamin B5 + NAA 2 mg / L + BAP 2 mg / L). Based on observations made on the growth and development of onion bulbs in vitro, treatment P3 with the combination of concentration 1 mg / L NAA and 1 mg/L BAP with the addition of vitamin B5 can stimulate organogenesis well to the number of leaf shoots, leaf length, number of roots and root length. This media provides the best results for the observed parameters compared to other treatments.
Interpretasi Citra untuk Analisis Kapasitas Sungai Unda sebagai Tampungan Lahar Dingin Erupsi Gunung Agung Bali NI KADEK DIAN ASRI LESTARI; NI MADE TRIGUNASIH; I NYOMAN DIBIA; R. SUYARTO
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

Imagery Interpretation for Analysis of Unda River Capacity to Retain Lahars Flow of Agung Volcano Eruption This study aims to determine the flow capacity of Unda River to retain lahars flow of Agung Volcano eruption using a descriptive exploratory method, the data through field surveys and analysis of satellite imagery. Sampling was determined based on the gradient and river's meander to produce 14 samples and 13 segments in the river flow. The cross section of the river is measured at each sample point with the mean section method, then estimating the volume of the river by multiplying the area between the two sections with the distance of the sample point. The lahar flood hazard assessment uses the Laharz application with the lahars scenario 1 million m3; 5 million m3; and 10 million m3. The results of the study showed that the capacity volume of the Unda River was 26.336.548,79 m3. Estimated area affected by scenario 1 million m3 covering 162,60 Ha; scenario 5 million m3 covering 399,19 Ha; and the scenario of 10 million m3 covering 533,77 Ha. The affected area reached 27 villages in the Karangasem Regency region and 20 villages in the Klungkung Regency area. The highest affected area for scenario of 1 million m3 is Muncan Village about 32,70 Ha; scenario 5 million m3 in Selat Village, Klungkung is 68,43 Ha; and the scenario of 10 million m3 in Tangkas Village about 266,01 Ha. The type of land use that affected is rice field land about 458,08 Ha; moor / mixed garden at 71,33 Ha; settlements is 147,72 Ha; and shrubs about 3,98 Ha.
Aplikasi Sistem Informasi Geografi (SIG) untuk Pemetaan Akuifer di Kota Denpasar HARIANJA JUITA; R. SUYARTO; I WAYAN NUARSA
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 Application of Geographic Information System (GIS) for Mapping of Aquifers in Denpasar City Ground water is the water contained in the soil or rock layers below the soil surface. Water resources derived from groundwater generally directly used to meet the needs of clean water daily. Ground water is used each time would decline both in quality and quantity along with the number of people who exist in an area. The aim of this research is to examine characteristics of aquifer and find out direction of the groundwater flow. Descriptive method selected as the method in this research, which is reads and records forms data to find out types aquifer, aquifer thickness and the permeability of aquifer. Determining the point of wells location is using purposive sampling method and to analyze the aquifer characteristics data likes water quality (eg; temperature, acidity, total dissolved solids), direction groundwater flow, aquifer thickness, aquifer types and the permeability of aquifer using Spline method and IDW (Inverse Distance Weighting). The results of this research are map of temperature, total dissolved solids, pH, aquifer types, aquifer thickness, the permeability of aquifer and groundwater flow. There are poor quality of groundwater in Denpasar area (west, east, north and south area) shows by their temperature and acidity. On the other hand, the total dissolved solids shows good water quality in east Denpasar area only. Depth of the unconfined aquifer ranging from 10 - 40 m (deep) up to > 40 m (very deep), thickness of unconfined aquifer is 30 m (deep) up to > 40 m (very deep), permebility unconfined aquifer are slow, very slow and fast. Depth of confined aquifer start from 40-100 m (deep) up to >100 m (very deep), thickness confined aquifer are 40 m (shallow), 60 m (deep) up to >100 m (very deep), permeability of confined aquifer both slow and fast. Unconfined aquifer and confined aquifer generally are sands, gravel, sandstone, volcanic ash and limestone. Groundwater flow from north to south.   Keyword : Aquifer, Geographic Information System (GIS), Ground water
Keragaman dan Kelimpahan Populasi Parasitoid Telur Penggerek Batang Padi di Kabupaten Tabanan NI MADE SUWARTINI; I WAYAN SUSILA; A.A. AYU AGUNG SRI SUNARI
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 Diversity and Abundance of Egg Parasitoid Population Rice Stem Borer in Tabanan Regency Rice is the staple food for most of the population of Indonesia. Tabanan Regency is a center production of rice in Bali Province. Judging from rice production in 2009 Tabanan Regency can produce 242 thousand tons of grain per year, but to improve production of rice in the field has many obstacles, one of them is rice stem borer pest. Rice stem borer can attack plants in the vegetative phase and the generative phase. It is necessary for the proper control measures, through the concept of integrated pest management that emphasizes biological control efforts that use natural enemies. Biological control by using egg parasitoid rated excellent because do not cause resistance and resurgence, organisms that are used to find the host, can multiply and spread, and control can be run by itself. Egg parasitoid of rice stem borer is an important factor that can regulate the population of rice stem borer pest abundance in the field. There were three types of rice stem borer egg parasitoids in Tabanan Regency are Trichogramma japonicum Ashm, Telenomus rowani Gahan, and Tetratichus schoenobii Ferr. Parasitoid of T. japonicum is dominant parasitoids and parasitization rate of this highest than the other parasitoids at each altitude. The diversity of rice stem borer egg parasitoid relatively low at <1.5. The highest population abundance indicated by T. japonicum ( 33.8 % ) at height <250 ( 0-250 ) masl ( meters above sea level ) and the lowest was in the height of T. rowani >500( 500-750 ) masl.
Perkembangan Populasi Liriomyza brassicae Riley (Diptera: Agromyzidae) dan Struktur Komunitas Parasitoid yang Berasosiasi dengan Tanaman Kubis-kubisan (Brassicaceae) di Provinsi Bali WAYAN SUDIANTARA PUTRA; I WAYAN SUPARTHA; DWI WIDANINGSIH
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

Populations Development of Liriomyza brassicae Riley (Diptera: Agromyzidae) and Community Structure of Parasitoid Associated with Cabbage (Brassicaceae) in Bali The research to find the morphological characteristics of Liriomyza brassicae, density and population development of L. brassicae, the community structure of parasitoid associated with cabbage (Brassicaceae) in Bali. This research was conducted in Baturiti Village (<850 m asl) Tabanan Regency, Kintamani Village (850-1000 m asl) Bangli Regency and Kembang Merta Village (> 1000 m asl) Tabanan Regency. The research was carried out from January 2018 to March 2018. The sampling method was carried out purposively and the number of samples taken from 20-50 leaves were attacked by Liriomyza. Identification of Liriomyza and parasitoid was carried out at the Integrated Pest and Disease Control Laboratory (IPM Lab) Faculty of Agriculture, Udayana University. The results showed that the morphological characteristics of L. brassicae namely mesonotum were black with yellow on the side, the scutellum was yellow with both brown corners colored, coxa and femur brownish yellow, yellow mesopleura, and the dorsal abdomen had a longitudinal line that cut the segment first abdomen to second abdomen. The result showed that population density of L. brassicae highest in broccoli at (> 1000 m asl) and the lowest in green mustard at (<850 m asl). The result showed that population development of L. brassicae highest at plant age 5 MST and population decline occurred at the plant age of 9 MST. The results also showed that there were 2 species of parasitoids associated with L. brassicae namely Opius sp., and Hemiptarsernus varicornis. The diversity index, abundance index, and parasitoid domination index associated with L.brassicae were highest in broccoli at (> 1000 m asl) and lowest in mustard at (<850 m asl).
Pengaruh Populasi Cacing Tanah dan Jenis Media Terhadap Kualitas Pupuk Organik NI KOMANG SUCI PRASTIWI SUCIPTA; NI LUH KARTINI; NI NENGAH SONIARI
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 The Effect of Population and Media Type on the Quality of Organic Fertilizer The research was conducted in the soil Laboratory, of Agroecotechnology Department/Study Program, Faculty of agriculture, Udayana University on January to April 2014. The purpose of this study is to know the influence of earthworm populations and types of media on the quality of organic fertilizers. The materials used in the study of household waste (vegetable), cow dung, elephant dung and earthworms. The design of the study is randomized block design factorial. Treatment consisted of 16 combinations treatment, each combination was repeated 3 times so that became 48 treatments. The first factor consisted of cow dung media, elephant dung, vegetable waste mixed cow dung and vegetable waste mixed elephant dung. The second factor is earthworms population consisted of 10, 20 and 30. The results of the interaction treatment study showed significant effect to highly significant to : C/N ratio, earthworm population, organic-C, total-N, the population of the earthworm eggs and the total population microorganisms. Instead of variable P, and pH. The best quality of organic fertilizer in this study is cows dung and 20 earthworms seen from the earthworm population, the number of worm eggs, and P-available.   Keywords : earthworms, the type of media, organic fertilizer
Identifikasi Jenis dan Populasi Jamur Tanah pada Habitat Tanaman Kubis (Brassica oleracea L.) Sehat dan Sakit Akar Gada pada Sentra Produksi Kubis di Kecamatan Baturiti Tabanan PANDE MADE INDRAYOGA; I MADE SUDARMA; NI MADE PUSPAWATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.2, No.3, Juli 2013
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Identify Types and Population of Soil Fungi on Cabbage (Brassicae oleracea L.) Health and Infected Habitat of Clubroot in Baturiti District, Tabanan Cabbage is a vegetable that potential to be developed, because a lot of people favored this vegetable. Cabbage crop production level is often affected by the attacks of pathogen Plasmodiophora brassicae that causes swelling at the root. This disease can reduce the production of cabbage plants up to 80%. The aim of this research is to investigate species variety and soil fungi population on healthy cabbage plant’s rizosphere (suppressive) and diseased cabbage or diseased sympton (conducive) of club root (Plasmodiophora brassicae), and also soil fungi which more dominant on isolation result of soil fungi, to investigate the relation of soil’s physico-chemistry nature with soil fungi population, and to investigate fungi species that able to antagonize P. Brassicae fungi. This research used 3 samples of soil which taken from both healthy and club root diseased cabbage plant’s rizosphere, where the soil’s sample taken from 3 locations, that are: Pekarangan, Baturiti Kaja, and Pacung. The result of this research shown that there are 17 species of soil fungi found on the sample of suppressive and conducivesoil in three locations, where the population of Fusarium sp. fungi becomes dominant soil fungi. This research also shown that on the relation between soil physico-chemistry nature and soil fungi population was not positively correlated, and species fungi of Trichoderma sp. is able to inhibit the growth of P. Brassicaefungi. Keywords: Cabbage plant, Plasmodiophorabrassicae, species and population of soil fungi, suppressive and conducive soil.

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