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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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Pemanfaatan Aeromonas hydrophila Untuk Mengendalikan Penyakit Layu Fusarium Pada Beberapa Varietas Sorgum Manis (Sorghum bicolor (L.) Moench I WAYAN GENTA ARIAWAN; DEWA NGURAH SUPRAPTA; NI WAYAN SUNITI
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

The Use of Aeromonas hydrophila to Control Fusarium Wilt Disease on Several Varieties of Sweet Sorghum (Sorghum bicolor (L.) Moench) Objective of this study was to test the effectiveness of A. hydrophila to control wilt disease caused by Fusarium sp. on several varieties of sweet sorghum. Results of this study showed that application of rhizobacteria affected the growth and the yield of sweet sorghum. Under in vitro condition, treatments with A. hydrophila isolate KtBlt2 could suppress the growth of the Fusarium sp. with inhibitory activity 76.06% when compared to control. Under field condition treatment P6 (treatment wilt A. hydrophila on variety FS-501) could suppress Fusarium wilt disease with the lowest disease incidence by 3.24%. It is necessary to test the stability of A. hydrophila as biocontrol agent against Fusarium sp. Keywords : A. hydrophila, Fusarium sp., sweet sorghum
Kajian Ketahanan Beberapa Galur dan Varietas Cabai terhadap Serangan Antraknosa di Desa Abang Songan Kecamatan Kintamani Kabupaten Bangli I DEWA MADE PUTRA WIRATAMA; I PUTU SUDIARTA; I MADE SUKEWIJAYA; KETUT SUMIARTHA; MADE SUPARTHA UTAMA
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 Study of Resistance of Some Lines and Varieties of Chili Pepper to Antraknosa Disease in Abang Songan Village, Kintaman District, Bangli Regency Increased production of chili is necessary due to increased demand of chili. Anthracnose is one of the major diseases in chili. The disease is caused by the fungus Colletotrichum spp. The study was conducted in the village of Abang Songan, Kintamani, Bangli from February to May 2012. The materials used in this study were 20 strains of chili seeds. A total of 16 lines from AVRDC chili seeds and 4 varieties of chili seeds locally as the benchmark that consists of 3 varieties of Balitsa and 1 local variety in Bali. The experiment was conducted using Randomized Block Design (RBD), to obtain the average value of the observed variables were divided into 3 replicates where each replication consisting of 20 plots and each plot consisted of 20 plants. The observations made on the productivity of pepper and disease attacks the intensity and incidence of disease. Productivity is highest chili varieties Cape (46.77 tons), while the highest strain AVRDC is AVPP 0513 (23.65 tons). Lowest local varieties are varieties Kencana (21.23 tons), while the lowest is the strain AVRDC AVPP strain 0718 (4.26 tons). The intensity and the highest incidence is AVPP strain 1003 with 16.67% of the intensity of the attacks included into the category vulnerable to disease and anthracnose disease incidence was 23.61%. The use of high-yielding varieties of seeds is one of the important factors in the success of the production, so the assembly of high yielding varieties of peppers needed to improve productivity. Key words: pepper, resistance, anthracnose, Colletotrichum spp
Evaluasi Kesesuaian Lahan dan Kelayakan Ekonomi Untuk Pengembangan Tanaman Jahe Merah (Zingiber offcinale var. Rubrum) Sebagai Komoditas Unggulan di Kecamatan Tegallalang Kabupaten Badung I MADE WIYOGA ARIE PUTRA; I KETUT SARDIANA; I GUSTI PUTU RATNA ADI
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

Land Suitability Evaluation and Economic Feasibility for the development of Red Ginger Plant (Zingiber offcinale var. Rubrum) as the flagship Commodities in the Subdistrict of Gianyar Regency Tegallalang Development of red ginger plant in Tegalalang District Gianyar regency is one of the gianyar regional government program to make red ginger as a flagship commodity by evaluating the suitability of red ginger plant land in research area and determine economic feasibility. is expected to increase the income of local farmers Tegallalang District Gianyar regency. This research aims to know the characteristics and quality of land Tegallalang District Gianyar Regency, actual and potential land suitability classification, limiting factors and economic feasibility red ginger plants. Comparing between the characteristics/quality of the land with the requirements of growing plants is done to determine the suitability of land in agroecosystem and for economic feasibility is done by calculating the B / C ratio. The sample point is determine by purposive random sampling.The results of this research indicate that the actual land suitability class on V1IAKC land unit is S3na1, V1IIAKC S3eh1.eh2, V1IIIAKC Neh1.eh2, V1IVAKC and V1VAKC Neh1.eh2. The highest economic feasibility of red ginger plant is in unit unit of V1IAKC with B / C ratio of 3.3 and lowest in unit of V1VAKC with B / C ratio is 0.3.
Uji Efektivitas Ekstrak Daun Cengkeh (Syzygium Aromaticum L.) Terhadap Phytophthora Palmivora Penyebab Penyakit Busuk Buah Kakao (Theobroma Cacao L.) NI LUH PUTU SONIA SAVITA DEWI; DEWA NGURAH SUPRAPTA; I KETUT SUADA
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

Effectiveness of Clove Leaf Extract (Syzygium aromaticum L.) againstPhytophthora palmivora the Cause of Cocoa Fruit Rot (Theobroma cacao L.) Cocoa fruit rot caused by Phytophthora palmivora is one of the main diseases that can greatly reduce the yield of cocoa production in the world. Therefore it isnecessary to control the disease in an environmentally friendly way. One of which isusing botanical pesticides. Clove leaf is one of the plants which extract can be usedas a fungicide. This study aimed to examine the effectiveness of clove leaf extract onP. palmivora the cause of cocoa fruit rot. MIC test and colony test was done using 10extract concentrations namely 0,1; 0,2; 0,3; 0,4; 0,5; 0,6; 0,7; 0,8; 0,9; 1,0 and 0,0%(control). The in vivo test uses 6 extract concentrations of 0,5; 0,6; 0,7; 0,8; 0,9; 1,0and 0,0% (control). The results showed the MIC (minimum inhibitory concentration)of clove leaf extract to suppress the growth of P. palmivora was 0.5% which means itis feasible to be used as a botanical pesticide. Under in vivo condition, clove leaf extractinhibited the growth of fungal colonies and infection and can be used as fungicide tosuppress the growth of P. palmivora. The extract concentration of 1% prevented thedamage of cocoa fruit caused by P. palmivora by 100%.
Penggunaan Chrysal untuk Memperpanjang Kesegaran Bunga Potong Mawar (Rosa hybrida L.) DIMAS MANDALA PUTRA; HESTIN YUSWANTI; IDA AYU PUTRI DARMAWATI
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

Chrysal Use to Extend Vaselife Cut Flowers (Rosa hybrida L.) RosesThe demand for cut roses increasing but the problems that often occur in old rose cut flowers is the vaselife of flowers very short. One way that can be done to prolong the vaselife of flowers adaah by giving a solution of the marinade. The main function of a marinade solution is to maintain the vaselife of cut flowers as long as possible. Chrysal. Chrysal a marinade solution containing sucrose, dextrose and citric acid that can extend the life of flowers (vaselife) Another important factor in maintaining the vaselife of flowers is the availability of water. Water will go faster if the wider cross-section, for example by cutting the plant stem oblique. Objective To know the concentration of the shredded material Chrysal optimized to produce a maximum vaselife of flowers. Knowing the difference in the vaselife of roses stalks in pieces tilt and horizontal concentration Chrysal know the interaction between the treatment of cuts rose to the vaselife of roses. This research was conducted at the Laboratory of Post Harvest Technology Faculty of Agriculture, University of Udayana. This study uses a completely randomized factorial design with two factors. Based on this research, interaction between concentration Chrysal (L) by cutting the flower stalk (A) does not affect significantly (p ? 0.05) of all observed variables. In the single factor cutting flower stalk treatment (A) significant (p> 0.05) to variable interest weight loss, dantotal solution is absorbed, whereas the concentration of Chrysal (L) a very significant effect on the flowers begin to bloom, longer vaselife, and the total solution is absorbed.
Evaluasi Status Kesuburan Tanah untuk Lahan Pertanian di Kecamatan Denpasar Timur DYAH AYU GEDE WIDYANTARI; KETUT DHARMA SUSILA; TATIEK KUSMAWATI
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.4, No.4, Oktober 2015
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Evaluation of Soil Fertility Status for Agricultural Land at East Denpasar District   Research on Evaluation of Soil Fertility Status for Agricultural Land in East Denpasar District was conducted in January-July 2014. The purpose of this study was to analyze some soil chemical properties that become obstacles soil fertility status, evaluate and map the soil fertility status of the study area. The method used in this study include, methods of survey and soil testing in the Soil and Environment Laboratory, Faculty of Agriculture, Udayana University. The study begins with  the manufacture of the land unit map by clicking the map overlay-type of soil; map slope; and land use maps. Retrieved five land units and each of land units were taken the composite soil samples and analyzed its chemical properties in the laboratory which includes CEC; KB; C-organic; total – P and K of soil. Further evaluation of soil fertility status corresponding technical instructions of Soil Research Center, Bogor (1995).           The results showed that the soil in the study had two soil fertility status, namely the status of medium and low soil fertility. The location study which has the status of soil fertility was covering land unit T1a; T1b; and T1c at Padang Galak Subak Kesiman Kertalangu (Kesiman Village, Kesiman Kertalangu Village, and Kesiman Petilan Village); T1d on Subak Yeh Lauh (Penatih Village), T3 land unit (Kesiman Kertalangu Village and Penatih Dangin Puri Village), and land units T4 on Subak Semaga (Penatih Village), While the research sites that have low fertility status covering, land unit T2 on Subak Delod Sema (Kesiman Village) and T5 land unit (Penatih Dangin Puri Village). Parameters of soil fertility is a constraint in dermining the fertility status of the soil, in the low content of  C-organic and total-P of soils. Management referral of soil fertility for the land unit T2 and T5 to suggest the addition of organic matter and fertilizer P to improve soil fertility status. Key Words : Soil fertility status; land units; agricultural land; East Denpasar District  
The Effect of Type and Spray Frequency of Leri on Growth of Phalaenopsis sp. Orchid after Acclimatization NI LUH GEDE WIDYA PURNAMI; HESTIN YUSWANTI; A.A. MADE ASTININGSIH
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.3, No.1, Januari2014
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT The Effect of Type and Spray Frequency of Leri on Growth of Phalaenopsis sp. Orchid after Acclimatization This research purpose was to know about interaction between type and spray frequency of leri and also single impact of this treatment to Phalaenopsis sp. orchid growth after acclimatization. The location of research was in Kerobokan, Badung district in May–September 2011. Used randomized block design, orchid seedlings were treated by combination type of leri such as leri from Ciherang white rice, Ciherang brown rice, brown rice of red local type and spray frequency such as once in 2 days, once in 4 days, once in 6 days also once in 8 days  with 3 repetition. The result showed that brown rice of red local type and once in 4 days spray frequency each had the highest variable result on height accretion of plant (4,08 and 3,89 mm), length of roots (47,15 and 45,40 mm), fresh weight of upper plant organ (895 and 896,67 mg) and also dry weight total of plant (55 and 55,56 mg). Interaction between brown rice of red local type and spray frequency once in 4 days was the best combination to increase orchid seedling growth after acclimatization. Keywords : orchid, leri, acclimatization.
Potensi Predator Coccinella Transversalis Fabricius (Coleoptera: Coccinellidae) sebagai Agen Hayati Pengendali Hama Thrips Parvispinus Karny (Thysanoptera: Thripidae) pada Tanaman Cabai Besar (Capsicum Annuum L.) NI KETUT JULI DWI JAYANTI; KETUT AYU YULIADHI; I NYOMAN WIJAYA
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 Potential of Predator Coccinella transversalis Fabricius (Coleoptera: Coccinellidae) as A Biology Control Agent Thrips parvispinus Karny (Thysanoptera: Thripidae) in Chili Plant (Capsicum annuum L.)Thrips parvispinus Karny (Thysanoptera: Thripidae) is one of the main pests in the cultivation of chili. T. parvispinus existence can damage chili plants and decrease production. This study aims to determine the potential of predator Coccinella transversalis required predation testing which includes a value of searching time (a), handling time (Th) and functional response C. transversalis to T. parvispinus on chili plants. The prey densities presented were 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 and 22 individuals. The exposure is done for twelve hours. Predator C. transversalis used is a female imago that has been fasted for 24 hours. The determination of functional response type was analyzed by regression analysis, while the predation rate is analyzed using Holling formula. The results showed that the prey density affects the predation rate and the functional response type C. Transversalis. The rate of C. transversalis predation is significantly different in each number of prey exposed. Similarly, on the basis of regression analysis, it is shown that C. transversalis has a functional response of type I to T. parvispinus prey. These results indicate that C. transversalis has potential as a biological control agent.
Uji Efektifitas Bakteri Antagonis Untuk Pengendalian Penyakit Layu pada Tanaman Stroberi SHAH KANIGARA ASADDIARI; GUSTI NNGURAH ALIT SUSANTA WIRYA; I KETUT SIADI; I MADE SUDANA
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

Effectiveness Test of Antagonistic Bacteria to Control Strawberry Wilt Disease Strawberry (Fragaria sp.) Is a herbaceous fruit plant that was first discovered in Chile, USA. Bali Province is one of the provinces that produce strawberries inIndonesia. The development center for strawberry commodity in the Province of Baliis in the Bedugul area, that is in the Village of Pancasari, District of Sukasada andVillage of Candikuning, District of Tabanan. Since 2016, there have been quiteharmful disorders in strawberry plants in Bali due to wilting caused by the fungusFusarium oxysporum. Research on the effectiveness test of antagonistic bacteria tocontrol strawberry wilt disease was conducted in January 2019 to August 2019. Thepurpose of this study was to determine the ability of antagonistic bacteria to controlthe growth of wilt disease in strawberries in vivo. The method used is the isolation ofbacteria and pathogens, application of bacterial and pathogenic isolates, andobservation. The results of this study are that the P3 bacterial isolate is able to controlthe most effective pathogens with a disease percentage of 20 %.
Kajian Ketahanan Terhadap Penyakit Busuk Daun (Phytophthora Infestans) pada Beberapa Galur Tomat I NYOMAN DARMA YASA; I PUTU SUDIARTA; I GUSTI NGURAH ALIT SUSANTA WIRYA; KETUT SUMIARTHA; I MADE SUPARTHA UTAMA; GREGORY C. LUTHER; JOKO MARIYONO
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol. 1, No. 2, Oktober 2012
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

ABSTRACT Study of Resistance of Tomato Lines to Late Blight Disease (Phytophthora Infestans) Indonesia is one of the tropical countries with high potential of horticulture, especially tomato. To produce high quality and quantity of tomato the one problem is plant diseases. The most cereus disease was reported as late blight, it is caused by Phytophthora infestans. P. infestans is commonly out break in high land area, with more than 1000 m acl.  The late blight can reduce the production of tomato or in some case make the loss of yield. To control the disease the farmers have been used the chemical fungicide. However the chemical fungicides have many negative impacts. Therefore to control the disease the one of possible way is using resistant plant. On the other hand the tomato has been planted in Indonesia has not resistance by the late blight. Base on that, the experiment to select some resistant plant was conducted. The experiment was done in high land area in Bukitcatu and Pancasari (Bedugul area 1200 m acl).  The experiment was conducted used 16 lines and 4 varieties. The15 lines were imported from AVRDC and 1 line and 3 varieties were come from IVEGRI and 1 variety is local used by farmer. The result shown the most resistance lines are AVTO 0922, AVTO 1122, and AVTO 1143 base on the disease incidence and severity observation. The AVTO 0922, AVTO 1122, and AVTO 1143 were significant difference with another lines and varieties. Keywords: Tomato lines, Phytophthora infestans, resistant plant

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