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All Journal Agrotrop : Journal on Agriculture Science AGRITROP International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Advances in Tropical Biodiversity and Environmental Sciences
TRISNA AGUNG PHABIOLA
Program Studi Agroekoteknologi Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Veterinary

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ISOLASI JAMUR PEMBENTUK GUBAL PADA TANAMAN GAHARU (GYRINOPS VERSTEGII) (ISOLATION OF GUBAL FORMING FUNGI ON GAHARU (GYRINOPS VERSTEGII)) MEGA, I MADE; AGUNG PHABIOLA, TRISNA
AGRITROP Vol. 29, No. 4 Desember 2010
Publisher : AGRITROP

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Abstract

The study is aimed to explore the microbial isolates of agarwood (gubal gaharu)-forming plant aloes on ketimunan plant (Gyrinops verstegii). The study was coducted from June to October 2008 in the Laboratory of Soil Biology, Faculty of Agriculture, University of Udayana. The method used in this study were: the isolation of microbes with PDA medium, inoculation of isolate into ketimunan plants, evaluating the success of inoculation (injection). Parameters measured were: the color of mold, the color of agarwood/kemedangan, long agarwood, and the level of the smell of agarwood/kemedangan. The results showed that there were 14 species of fungi that able to form agarwood aloes on the plant ketimunan. All of these fungus were able to cause agarwood/kemedangan fragrant aloes, but the level of fragrance varies from slightly fragrant, fragrant, until very fragrant.
Isolasi dan Seleksi Bakteri Antagonis Sebagai Alternatif Pengendalian Penyakit Layu Stroberi I GUSTI NGURAH PRABU WIRA SANJAYA; GUSTI NGURAH ALIT SUSANTA WIRYA; TRISNA AGUNG PHABIOLA; I MADE WINANTARA
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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Isolation and Selection of Antagonis Bacteria as an Alternative Control of Strawberry Wilt Diseases Strawberry (Fragaria sp.) is a plant that can produce fruit and a members of Rosaceae familia that entered Indonesia in the 1980s and began cultivativated in Candi Kuning Village, Bali at 1983. The farmer reported in 2017 at Candi Kuning Village, Bali, there are many strawberries plants are exposed to wilting disease caused by Fusarium oxysporum which can decreased strawberry production up to 80%. The purpose of this study is to find alternatives ways of chemical control that can cause environmental damage. Biological control, especially the use of antagonistic bacteria, has potential as a replacement because it is much more environmentally friendly and can create sustainable agriculture. The method used are isolation and selection, in vitro inhibitory test, and hypersensitive test on tobacco plants. Research activities included (1) sampling, (2) Fusarium oxysporum isolation from symptomatic strawberry plants, (3) isolation and selection of antagonistic bacterial candidates, (4) antagonistic candidate bacteria inhibitory test against Fusarium oxysporum by dual cultur method in vitro, and (5) hypersensitive test of antagonistic bacterial candidates on tobacco plant leaves. The result of this research is Fusarium oxysporum successfully isolated, obtained 24 candidates of antagonistic bacteria and only 4 candidates of antagonistic bacterial isolates capable of well inhibiting the development of Fusarium oxysporum with the average inhibitory percentage are more than 60 % which is the best inhibitory percentage of 90.17 % and in the hypersensitive test, the bacterial candidates tested were non-pathogenic to the plant.
Pengaruh Waktu Inokulasi Terhadap Laju Infeksi Penyakit Bean Common Mosaic Virus (BCMV) pada Tanaman Kacang Panjang (Vigna Sinensis L.) I GUSTI AYU KARISMAYATI; GUSTI NGURAH ALIT SUSANTA WIRYA; TRISNA AGUNG PHABIOLA
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

The Effect of Inoculation Time towards the Infection Rate of Bean Common Mosaic Virus (BCMV) Disease on Long Beans (Vigna sinensis L.)Bean Common Mosaic Virus (BCMV) is kind of disease which greatly decrease the production of beans. The information about the spread of this disease is unknown. Therefore, it should be a research to be investigated. The purpose of the study is to determine the effect of inoculation time towards the infection rate of BCMV disease on long beans. The study uses a Randomized Complete Block Design (RCB) consisted of eight treatments and four replications, namely: the treatment of plants which originated from infected seeds of BCMV, inoculated at the age of 2, 3, 4, 5, 6, and 7 week after planting, and without inoculation as a control.The results showed that the younger of long beans infected by BCMV, resulting in the higher infection rate of disease and the symptoms caused would be more severe. The infection rate on plants which were inoculated at the age of 2, 3, 4, 5, 6, 7 week after planting and without inoculation were respectively 0,85; 0,77; 0,73; 0,49; 0,36; 0,31; and 0. The inoculation treatments at the age of 2, 3, and 4 week after planting were highly vulnerable to be infected by BCMV and caused the symptoms of severe mosaic, severe leaf malformations, and thickening of the bone leaves, whereas the inoculation treatments at the age of 5, 6, and 7 week after planting were resistant against BCMV disease with symptoms caused were moderate to mild, while the treatments without inoculation did not show any infection symptoms of BCMV.
Isolasi Jamur Endofit Pada Tanaman Anggur Bali (Vitis vinifera L. var. Alphonso Lavalle ) serta Efektivitasnya untuk Menekan Pertumbuhan Penyakit Busuk Kapang Kelabu pada Buah Anggur Bali NI LUH PUTU NOVITA DEWI; I MADE SUDARMA; TRISNA AGUNG PHABIOLA
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

Endophytic Fungi Isolation on Balinese Grape Plants (Vitis vinifera L. var.Alphonso Lavalle ) and its Effectivenese to Control Grey Mold Disease on Balinese Grape Gray mold rot is the disease caused by pathogen Botrytis cinerea. It is animportant disease in grapes (Vitis vinifera L.) since it can reduce the quantity andquality of grapes. Nowadays people use synthetic fungicides to control the pathogen,but the cost of synthetic fungicides is expensive and continuous usage will give anegative impact to the environment therefore endophytic fungus is an alternative waythat can be used to control the pathogen in grapes. The purpose of this study was toobtain endophytic fungi and obtain the best endophytic fungus to control gray moldrot pathogens. This study uses two methods which are in vitro endophytic fungalantagonist test and in vivo endophytic fungal antagonist test in the laboratory. Theresults showed that there were 10 endophytic fungi. The results of in vitro and in vivotests showed that the best endophytic fungus was Miselia sterilia A as confirmed bythe percentage of inhibition of Miselia sterilia A in the in vitro test of 82.14% and thesmallest percentage of pathogen attack in the in vivo test of 6%.
Pengendalian Penyakit Layu Fusarium oxysporum f.sp. capsici pada Tanaman Cabai Rawit Capsicum frutescens di Rumah Kaca dengan Trichoderma sp yang Ditambahkan pada Kompos I MADE TEDI MAHADI PUTRA; TRISNA AGUNG PHABIOLA; NI WAYAN SUNITI
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

The utilize of Trichoderma sp Compost Formulation to Control wilt disease of Fusarium oxysporum f.sp.capsici in cayenne pepper Fusarium oxysporum f.sp.capsici is a disease that attacks cayenne pepper. This disease can be suppressed by an infectious pathogen called Trichoderma sp. This study was done at laboratory UPT BPTPH Bali Province started from April 2018 to September 2018. This study was done in order to fine the best dose of Trichoderma sp. that used to control Fusarium oxysporum f.sp.capsici on cayenne pepper The experimental design is randomized block design (RBD) with six treatments and each treatment is replicated 4 times. The result of this study show that application of Tricoderma sp. on cayenne pepper could decrease wilt disease of Fusarium oxysporum f.sp. capsici with minimum percentage of wilt symptoms is T5 only 30% in 16 WAT compare with control 67,5%. The best treatment that can decrease symptoms of wilt desease and increasing the yield of cayenne pepper is the T5 (25 gr/plant) but not significantly affect with T3 (12 gr/plant).
Hubungan Antara Populasi Kutu Kebul (Bemisia tabaci) (Gennadius) ( Hemiptera : Aleyrodidae) dengan Insiden Penyakit Kuning pada Tanaman Tomat (Solanum Lycopersicum Mill.) di Dusun Marga Tengah, Desa Kerta, Kecamatan Payangan, Bali ANAK AGUNG GDE AGUNG NARENDRA; 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

The Relationship Between Population of Whiteflies (Bemisia tabaci) (Genemadius) (Hemiptera : Aleyrodidae) with Incident of Yellow Disease on Tomato Plant (Solanum lycopersicum Mill.) in Dusun Marga Tengah, Kerta Village, Payangan District, Bali The disease of tomato is namely yellow disease that is caused by a Geminivirus from species Tomato Yellow Leaf Curl Virus (TYLCV) . That virus can be propagated through the vector that is Bemisia tabaci.This study aimed to know the relationship between population of Bemisia tabaci (Genemadius) (Hemipteraaleyrodidae) with incident of yellow disease on tomato plant (Solanum Lycopersicum Mill.) This study is located at the center of tomato cultivation in Dusun Marga Tengah, Kerta Village, Payangan, Bali from December 2016 to February 2017. This study observe the number of nymphs Bemisia tabaci on tomato plants as sample that choosen and observed the incidence of disease in tomato plant area. Relationship between yellow disease incidence with population of Bemisia tabaci is analyzed by a linear regression model. The results showed that the incidence of yellow disease in tomato plants correlated positively and significant with the increase of vector insect population Bemisia tabaci that is 87,37%.
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.
Pengembangan Formula Biofungisida dan Aplikasinya dalam Mengendalikan Penyakit Layu Fusarium pada Tanaman Tomat (Solanum lycopersicum L.) DONI SITUMORANG; KHAMDAN KHALIMI; TRISNA AGUNG PHABIOLA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Development of a Biofungicide Formula and Its Application in Controlling Fusarium Wilt in Tomato Plants (Solanum lycopersicum L.) Fusarium oxysporum fsp. lycopersici is one of the pathogenic fungi that causes Fusarium wilt disease in tomato plants and is very detrimental in tomato cultivation. Fusarium wilt disease control can be done by using a biofungicide formula that does not damage the environment. Biofungicide is the use of biological agents as active ingredients combined with natural carrier agents to form a biofungicide formula. The fungus Gliocladium sp. is a biological agent that can be used as an active ingredient in a biofungicide formula. This study aims to test the ability of Gliocladium sp. in inhibiting the growth of the fungus F. oxysporum fsp. licopersici in vitro and tested the ability of the formula with the active ingredient Gliocladium sp. in suppressing the incidence of wilt disease in vivo. The results of the inhibitory test of Gliocladium sp. against the growth of the fungus F.oxysporum fsp. lycopersici showed that the treatment of Gliocladium sp. can suppress the growth of fungal colonies F. oxysporum fsp. lycopersici with the percentage of inhibition of 99.21%. Testing of biofungicide formulas in vivo shows that the four biofungicide formulas namely F1, F2, F3 and F4 are able to control Fusarium wilt disease in tomato plants with a wilt disease percentage of 0%.
Penularan Virus Bergejala Mosaik Pada Tanaman Melon (Cucumis melo L.) Secara Mekanis dan Melalui Vektor Kutu Daun MISBAHUL KHULUQ; TRISNA AGUNG PHABIOLA; I NYOMAN WIJAYA
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

Transmission of Symptomatic Mosaic Virus in Melon (Cucumis melo L.)Mechanically and Through the Aphids Vector Melon (Cucumis melo L.) is one of the horticulture plants that is widely cultivated and consumed by the people of Indonesia. But the decrease in yield due toan OPT attack (plant disrupting organisms) is a major concern. Among the pests thatplay a role in reducing the yield of melons are viruses and insect vectors. Aside frombeing a pest, aphid insect also act as vector transmitters of viruses that cause mosaicsin melon plants. The method of transmission in this research used the method oftransmission mechanically and through aphids vectors. The aim of this research wasto examine the potential transmission of Potyvirus wich caused mosaic on melonmechanically and through the vector Aphis gossypii. The parameters are the type ofsymptoms, the percentage of the disease and the intensity of the disease attack. Thevariations of symptoms showen were dark green mosaic patterns, yellow mosaicpatterns, vein-banding and malformations. The results of the transmission test wereproven by molecular identification using the Reverse Transcription Polymerase ChainReaction method. The results explained that the Potyvirus could be transmittedmechanically with disease incidence of 100%, disease intensity of 42% and throughAphis gossypii vector with a disease incidence of 90%, disease intensity of 28%. Thetest was proven using the RT-PCR method with CIFor and CIRev primers whichshowed amplicon product 700 pb.
Identifikasi Senyawa Antijamur dari Agens Hayati Rizoplan KEZIA KEZIA; KHAMDAN KHALIMI; TRISNA AGUNG PHABIOLA
Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Vol.10, No.4, Oktober 2021
Publisher : Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana

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Abstract

Identification of Antifungal Compounds From Biological Agents of Rhizoplan Fusarium wilt disease that attacks plants is caused by Fusarium oxysporum, this disease can cause significant losses to plants. The use of rhizoplan bacteria is considered as an alternative to control fungal growth. The use of selective and environmentally friendly rhizoplan bacterial control. The purpose of this study was to identify antifungal compounds in bacterial rhizoplans. The results showed that rhizoplan bacteria were able to inhibit the growth of F. oxysporum f.sp. lycopersici fungal colonies on potato dextrose agar (PDA) media with an inhibition percentage of 88.24% when compared to the control. The results of the filtrate test of rhizoplan bacteria at a concentration of 50% were able to inhibit the growth of F. oxysporum f.sp. lycopersici with an inhibition percentage of 90.14%. The antifungal compounds produced by rhizoplan bacteria isolate RbJN10 on Gas Chromatography Mass Spectrometry (GC-MS) analysis were Dihydro-3- (2H)-thiophenone; 2(5H)- Furanon; 2(3H)- Furanone,5-methyl; 2- Furancarboxaldehyde, 5-methyl; 2,5Dimethylfuran-3,4(2H, 5H)-dione; 2- Furancarboxylic Acid; Methyl 2-furoate; 1,2-Ethanadiol,1-(2-furanyl)-; 5- hydroxymethylfurfural.
Co-Authors ANAK AGUNG GDE AGUNG NARENDRA DEBBIE OKTAVIANI DEPARI Dewa Gede Wiryangga Selangga DONI SITUMORANG Gusti Ngurah Alit Susanta Wirya H. Yuswanti HELENA TAMPUBOLON I G. R. M. TEMAJA I GUSTI AYU ARI SANTIKADEWI I GUSTI AYU KARISMAYATI I GUSTI NGURAH PRABU WIRA SANJAYA I KADEK ARYARTHA I Ketut Siadi I Ketut Suada I Made Ary Putra Nata I Made Mega I MADE SUDANA I MADE SUDANA I MADE SUDARMA I MADE TEDI MAHADI PUTRA I MADE WINANTARA I NYOMAN WIJAYA I PUTU WIRYA SUPUTRA I.G.A. Gunadi Ida Ayu Putri Darmawati IDA BAGUS GEDE MAHENDRA K.A. Yuliadhi K.B. Susrusa KETUT AYU YULIADHI Ketut Ayu Yuliadhi KEZIA KEZIA Khamdan Khalimi KHAMDAN KHALIMI Listihani, Listihani MADE SRITAMIN Mimi Sutrawati MISBAHUL KHULUQ N.N.A. Mayadewi NI LUH OCTAVIANI NI LUH PUTU NOVITA DEWI NI MADE SAVITA RASJMAN Ni Putu Pandawani NI WAYAN SUNITI PANDE MADE GIOPANY Putu Perdana Kusuma Wiguna Putu Sudiarta Retno Kawuri Rindang Dwiyani RIZWAN FEBIANTA BRAHMANA TRI ASMIRA DAMAYANTI Y. Fitriani