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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.
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Articles 12 Documents
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Search results for , issue "Vol.6, No.3, Juli 2017" : 12 Documents clear
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.
Pengaruh Infeksi Beberapa Jenis Virus Terhadap Penurunan Hasil Produksi Tanaman Tomat ( Solanum lycopersicum Mill.) Di Dusun Marga Tengah, Desa Kerta, Kecamatan Payangan, Kabupaten Gianyar IDA BAGUS GEDE MAHENDRA; TRISNA AGUNG PHABIOLA; KETUT AYU YULIADHI
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

Effect of Virus Infection Several Types of Decreased Production Plant Tomato (Solanum lycopersicum Mill ) in Dusun Marga Tengah, Kerta Village, Payangan District, Gianyar Regency The purpose of this research is to know the how much yield loss due to virus infection on tomato plants as well as knowing viruses that attack tomato plants with symptoms of mosaic and yellow. This study was conducted from October 2016 through December 2016 held at Dusun Marga Tengah, Payangan, Gianyar. Activities undertaken during the study was the observation of symptomatic plant virus, harvesting, sampling symptomatic mosaic, yellow and serology ELISA (Enzyme Link Immunosorbent Assay). Field observations show that plants with mosaic symptoms have a higher incidence of the disease (21.75%) and plants with symptoms of yellow (13.17%). Tomato plants with mosaic symptoms resulted in an average yield of 498.54 grams with the highest rate of loss of 82.73% and a yellow tomato plants with symptoms caused average crop yield of 1672.50 grams with a loss rate of yield of 44.48%. The results of serologic testing by ELISA of leaf samples of tomato plants with mosaic symptoms were positively infected TMV (Kutu Putih) and leaf samples of tomato plants with symptoms of infection PepYLCV (Pepper yellow leaf curl virus) positive yellow.
Pengaruh Penundaan Waktu Prosesing Terhadap Mutu Benih Padi (Oryza sativa l.) Varietas Membramo LUCIO NUNO; I GUSTI NGURAH RAKA; HESTIN YUSWANTI
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 Influence of Processing Time Delay To Rice (Oryza Sativa L.) Seed Quality of Membramo Variety This research was performed with the purpose to obtain tolerance of processing time delay after appropriate crop so it doesn’t affect the physical and physiological quality of rice (Oryza Sativa L.) seed.This experiment used the Complete Random Design (RAL) by using 8 treatments and 3 repetitions. Therefore, there are 24 experiment units. Research result data were tabulated and analyzed mode investigation according to design that was used, and if the treatment has significant influence then it is proceeded with Duncan’s multiple distance test (5%).Observation was carried out to water content variable during the crop (%), water content during the processing (%), water content during the test (%), the viability test/power of germination (%) and electrical conduction power test (? mhos cm-2 g1).Research results shows that the longer processing time delay the more increase clear water content, the lowest water content at the direct harvest processing and the highest at processing time delay at the seventh day. So thus the longer processing time delay the viability processing will decrease. The processing time delay until 2 days after the crop the rice seed viability is more than 80% (above quality standard, ISTA), the next delay the seed viability is already under standard. The electrical conduction power more increase by the longer seed processing time delay.
Kebutuhan Nutrisi dan Substansi dalam Pakan Buatan Serangga (Artikel Ulasan) I GEDE KETUT SUSRAMA
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

Insect Nutritional Requirements and Substances in its Artificial Diet In its life, insect as like as other creatures on earth need nutrients for the metabolism in their body so that the larval stage can grow to adult insect and then can do copulation to produce fertile eggs for its life cycle and for the existence sustainability of their species. Nutrional requirements among insects are certainly not the same depending on insect classification and actually different from species to species however in general there are major nutritional requirements that must available in an insect artificial diet. The nutrional requirements of insects and substances that commonly available in an artificial diet composition for insect are discussed in this article review.
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.
Pengaruh Jumlah Bibit dan Pupuk Organik terhadap Pertumbuhan dan Hasil Tanaman Padi (Oryza sativa L.) IVAN MATHEUS NAINGGOLAN; GEDE WIJANA; I GUSTI NGURAH SANTOSA
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 Effect of Number of Seeds and Organic Fertilizer on the Growth and Yield of Rice (Oryza sativa L.) This research aims to determine the effect of the number of seedling and organic fertilizers solid and liquid on the growth and yield of rice plants. The research was conducted on March 18 - July 3 2016 at the Greenhouse Garden Experiments Faculty of Agriculture, University of Udayana, Denpasar. The research method is a pattern of split plot using randomized block design consists of two factors: the main plot (organic fertilizer) and subplot (use the number of seeds). The main plot consisted of two levels are solid organic fertilizer and liquid organic fertilizer. Subplot consisted of three levels and 1 , 3, and 5 seedlings per hole. The data were analyzed using analysis of variance with Costat program. Results of statistical analysis showed that one interaction between the use of the number of seedling and organic fertilizers no real effect on the variables tested. The number of seedling treatment use did not significantly affect to the growth and yield, except the total number of tillers. Treatment of solid organic fertilizer is better than liquid organic fertilizer on the growth and yield of rice. Dry grain yield per harvested and oven dried clumps on the use of solid organic fertilizer is higher, at 22,69 g and 14,85 g, compared to using liquid organic fertilizer 15,11 g and 8,19 g. Associated with the use of the number of seeds is recommended to use the number of seeds one per hole, but for the implementation in the field required further research.
Uji Daya Hambat Jamur Endofit Terhadap Phytophthora palmivora (Butler) Butler Penyebab Penyakit Busuk Buah Kakao Secara in Vitro GEDE DANGU INDRAWANGSA; I MADE SUDARMA; I DEWA PUTU SINGARSA
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

In Vitro Inhibition Test of Endophytic Fungi Againts Phytopthora palmivora (Butler) Butler the cause of Black Pod Desease on Cocoa Cocoa plant is an important industrial crops in Indonesia. Cocoa is the industrial raw materials manufacture of chocolate. Indonesia is one of the biggest cocoa producer in the world. The land area and the climate in Indonesia is really good for supportingits cultivation so that it has a good potentialas an important commodity. The utilization of biological agents to control the black pod disease caused by Phytophthora palmivora is one of the solutions which is safe for the environtment. This study was aimed to determine the type and the effectivity of endophytic fungi as biological agents to control the black pod disease disease of cocoa caused by P. palmivora. This study included several steps which are: Pathogen isolation, endhopytic fungi isolation, endhopytic fungi identification, and antagonistic test. The result showed that P. palmivora was found as the main pathogen which caused the black pod desease of cocoa. Neurospora sp., Trichoderma sp., Aspergillus flavus, Aspergillus niger, Aspergilus spp. were types of endophytic fungi which had the best inhibition among the other endhophytic fungus. Endophytic fungi was able to control pathogen by antibiosis. Trichoderma sp. was the fungi which is able to control the pathogen by antibiosis by excreting antibiotical compound that is dangerous for pathogen.
Uji Daya Hambat Jamur Eksofit terhadap Phytophthora palmivora (Butler) Butler Penyebab Penyakit Busuk Buah Kakao secara In Vitro ONGKY ARI WIBOWO; I MADE SUDARMA; NI MADE PUSPAWATI
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

In Vitro Inhibition Test of Exophytic Fungi against Phytophthora palmivora (Butler) Butler the Cause Black Pod Disease on Cocoa Cocoa is one of the featured crop plantations in indonesia. In a development widely, a common problem is black pod disease. In indonesia Phytophthora palmivora fungi is a major cause black pod disease of cocoa. This disease can reduce the yield and quality of cocoa up to 32-99%.The use of microbial antagonists as a biocontrol agent to suppress the growth of P. palmivora is important. Some exophytic fungi known to have high potential antagonists in suppressing the growth of P. palmivora fungi. This study was aims to determine the potential inhibition of exophytic fungi in suppressing the growth of P. palmivora fungi in vitro. This research was conducted in July 2016 to October 2016 at the laboratory of Biotechnology, Faculty of Agriculture, University of Udayana. Stages of the research include: isolation of pathogenic fungi, isolation exophytic fungi, an in vitro test, and identification of fungi. The result showed the pathogen P. palmivora the cause black pod disease of cocoa at Perean Village, Tabanan Regency, Bali. Exophytic fungus which has the potential inhibition of the highest in study include: Rhizoctonia sp. 93,7%, Trichoderma sp1. 92,9%, Rhizopus sp. 94,4%, Aspergillus sp. 88,2%, Trichoderma sp2. 94,8%, Mucor sp. 93,7%. Exophytic fungi which has antibiosis substance is Trichoderma sp1.
Pengaruh Inokulasi Pseudomonas spp. Indigenus terhadap Penyakit Akar Gada dan Pertumbuhan Tanaman Kubis (Brassica oleracea L.) IDA AYU GEDE DIANGGI ADIATHY; NI WAYAN SUNITI; I KETUT SUADA
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 Effect of Pseudomonas spp. Indigenous Inoculation against Clubroot Disease and Cabbage (Brassica oleracea L.) Plant Growth Clubroot that caused by Plasmodiophora brassicae Wor. is a disease that can cause great losses to cabbage. Utilization of biological agents such as indigenous Pseudomonas spp. become an alternative option to be recommended to suppress the disease, because it is environmentally friendly and safe for the balance within ecosystem. The aim of this study was to obtain the most effective isolate of indigenous Pseudomonas spp. in suppressing clubroot disease and promoting growth of cabbage plants. The results showed there were three best effective isolates which able to suppress the clubroot disease as well increase the plant growth. The isolates were isolated from Brassica oleracea var. italica (Pf5), isolated from Brassica oleracea capitata var. rubra (Pf8), and isolated from Eruca sativa (Pf12).
Aplikasi Remote Sensing dan Sig Untuk Pemetaan dan Informasi Sumberdaya Lahan Subak Sawah di Kecamatan Kuta dan Kuta Utara, Kabupaten Badung DEWA GEDE SUARJAYA; INDAYATI LANYA; I GUSTI PUTU RATNA ADI
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

Application of Remote Sensing and GIS for Mapping and Information Resources in Wetland of Subak in Kuta and North Kuta, Badung Regency Subak in this research is a wetland that has spatial data. Wetland subak during this uncharted spasial basis and yet the existence of the information resources of subak. Subak database based information dan communication technologi (ICT) is indispensable in agricultural development in general. This research was done in Kuta and North Kuta, Badung, Bali from September 2016 to March 2017. The research method includes : (1) library studies, (2) analysis of satellite imagery conducted using Quickbird 2012 and Quickbird 2017, (3) surveys, and (4) arrangement of database resource.The result of digitized satellite images in 2017 retrieved 21 subak area of 1007.39 ha in Kuta and North Kuta. BPS data (Statistics Indonesia, 2016) retrieved 22 subak area of 1316 ha. Subak Ulun Tanjung located in the Legian Village has not paddy fields since 2006. Land resources information system of subak is very accessible and fast through the technology of Geografis Information Systems (GIS).

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