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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia Agrikultura Jurnal Keteknikan Pertanian Agrovigor: Jurnal Agroekoteknologi Jurnal Hortikultura Jurnal Penelitian Tanaman Industri Jurnal Perlindungan Tanaman Indonesia JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Agriprima : Journal of Applied Agricultural Sciences Jurnal Penelitian Pertanian Tanaman Pangan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Penelitian Tanaman Industri (Littri) Proceedings Series on Physical & Formal Sciences

Efi Toding Tondok

Bogor Agricultural University

Author-ID : 2421282

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology

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Identifikasi Infeksi Cendawan Patogen pada Jagung Pipil dalam Penyimpanan Suhu Ruang Nofiyanti, Sri Handayani; Ahmad, Usman; Tondok, Efi Toding
Jurnal Penelitian Pertanian Tanaman Pangan Vol 5, No 2 (2021): Agustus 2021
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpptp.v5n2.2021.p134-142

Postharvest handling of shelled corn often faces problems caused by fungal attacks during storage, resulting deterioration due to physical and biological damages. This study aimed to identify various pathogenic fungi that infected shelled corn during storage through the characteristics and growth phases of each fungus as well as to find out the interaction between fungi and shelled corn based on the different parts of kernel structure infected by the fungus. The blotter test method (ISTA) was used to isolate the fungal pathogens from infected shelled corn then purified and cultivated on PDA. Subsequent, microscopic and macroscopic observations were made by capturing images for eight days. Observations showed that Aspergillus spp predominantly infected the pericarp of the shelled corn (61%), Penicillium sp (15%) tended to infect the tip cap, Talaromyces sp (13%) on the endosperm, and Rhizopus sp (11%) on the germ. The largest colony areas after 8-day incubation were Rhizopus sp, followed by Aspergillus spp, Talaromyces sp, and Peniillium sp. The fungus growth phase had a logarithmic pattern with different time for each stage. Therefore, this pattern can be used as a reference for proper preventing time in shelled corn storage before the fungi can produce mycotoxins in the stationary phase and also the possibility to use the fungi as biological agents, such as antibiosis, competition, or parasite.

Biocontrol Activity, Mode of Action, and Colonization of Aureobasidium pullulans Dmg 30 DEP on Controlling Early Blight Disease on Tomato Plant Wawan Setiawan; Suryo Wiyono; Toga Pangihotan Napitupulu; Atit Kanti; Idris Idris; Masrukhin Masrukhin; Efi Toding Tondok; I Nyoman Sumerta; I Made Sudiana
HAYATI Journal of Biosciences Vol. 29 No. 3 (2022): May 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.3.320-329

We investigated the biocontrol activity of A. pullulans Dmg 30 DEP against Alternaria solani causal agent of early blight. Biocontrol activity was tested by the in vivo and ad planta. Biocontrol activity were tested by investigating the antibiosis capabilities with dual culture method, paper dish assay, two-compartment petri dish assay, and trapping and identification of volatile organic compounds (VOCs) with GC-MS. Lysis activity was examined by observing the clear zone formed by growing yeast on chitin agar and skim milk agar. The ability of hyperparasitism was assessed by the agar block method, and observed by light microscopy and scanning electron microscopy (SEM). The results showed that A. pullulans Dmg 30 DEP plays a role in the suppression of early blight disease at 106 cells/ml and 107 cells/ml yeast cell density. The mechanism involved in biocontrol activity is the production of VOCs, the production of chitinase and protease enzymes, the production of siderophore and hyperparasitism. The result shows that A. pullulans Dmg 30 DEP was colonizing the tomato leaves following the areole.

Kajian pemanfaatan limbah organik cair untuk pembiakan masal agens antagonis pseudomonas flourescens serta uji potensinya sebagai bio-pestisida . Giyanto; Efi Toding Tondok
Jurnal Ilmu Pertanian Indonesia Vol. 14 No. 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1989.032 KB)

Pseudomonas fluorescens has been well known as biological control agent for plant diseases control. The ;:>roblem to apply the agents widely in the field or in the level of farmer is limited technology of mass production Nith low cost, due to the simple technology of propagation has not been yet available. The objective of this research is to study the potency of liquid organic wastes as media for mass production of P. f/uorescens and to formulate them as bio-pesticide. The results showed that modification of coconut water to pH of 7.0 could be used as media for growing P. flourescens. The P. fluorescens also could grow well in livestock liquid waste by adding 10% meat extract. On the other hand, the liquid tofu waste and liquid compost waste became good media for growing of P. fluorescens by addition of 10°/o meat extract and 1.2S0/o sugar. Tetes tebu will be very good media for P. f/uorescens at S% final concentration and by adding of 10°/o meat extract and 2.S0/o of sugar. The P. fluorescens showed high antagonistic effect to Ralstonia solanacearum and Sclerotium rolfsii in all of modified liquid organic wastes media. Survival and antagonisctic activity of P. fluorescens in modified organic liquid wastes stored at S°C or room temperature were 12 weeks. In vivo antagonistic and plant growth promoting activity showed that P. fluorescens grown in liquid organic waste suppressed the incidence of stem rot diseases caused by Sclerotium rolfsii and increased the vigor of plant growth on watermelon. Formulation of the P. Fluorescens grown in modified coconut water gave the best performance of P. fluorescens in supppressing of plant diseases and inducing plant growth. The product of BeMOR(e) (beneficial microorganism) from the result of this research will be proposed to be patented.

Dampak Penggunaan Fungisida Sintetik pada Kelimpahan Cendawan Endofit Tanaman Padi Rika Estria Gurusinga; Lilik Retnowati; Suryo Wiyono; Efi Toding Tondok
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 3 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.25.3.432

Application of fungicides to control rice diseases potentially have adverse effect on non target organisms including endophytic fungi. Unfortunately, information of fungicide effect on endophytic fungi on rice is still limited. The purpose of this research was to study the diversity and abundance of endophytic fungi on rice plant because of application of synthetic fungicides. There were two treatments in this study: non systemic fungicide (mankozeb) and systemic fungicide (difenoconazole) which were compared to control (without fungicide). Isolation of endophytic fungi and application of fungicides were conducted every week started at aged of 3 to 10 weeks after planting. Variables observed were total segment of rice colonized by endophytic fungi, colonization frequency of endophytic fungi, continued by identification and analysis of the diversity of endophytic fungi. This study showed that there was an increase in colonization of endophytic fungi with an increase of plant ages. The diversity of endophytic fungi was higher in stems than in leaves with the value of H' is 0.00-1.35 and 0.00-0.98 respectively. The most common types of endophytic fungi appear in each isolation of rice segments were Acremonium, Curvularia, Fusarium, Helminthosporium, Nigrospora, Penicillium, and Mucor. Both fungicides do not significantly affect the percentage of colonization and diversity of endophytic fungi. At the beginning of planting (4-6 MST) there was a decrease in the percentage of endophytic fungal colonization in the stem. From the percentage of colonization of each genus of fungi, Nigrospora and Fusarium decreased significantly with difenoconazole on the stem during the vegetative phase. Keywords: colonization, community, difenoconazole, diversity, mancozeb

Isolation and Capability of Dark Septate Endophyte Against Mancozeb Fungicide Jean Nihana Manalu; Bonny Poernomo Wahyu Soekarno; Efi Toding Tondok; Surono Surono
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 2 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Mancozeb is a group member of dithiocarbamat fungicides that most widely applied in the field. The use of mancozeb causes residues that have negative effects on agricultural production system and on agricultural environment. This research aimed to obtain dark septate endophyte (DSE) fungal isolates that are tolerant to mancozeb fungicide. The study was consisted of three steps, i.e., the isolation of DSE fungi from chili roots, the effect of DSE fungal isolates on chili seeds, and the growth ability of DSE isolates on medium supplemented with mancozeb. Thirteen DSE fungal isolates were isolated from chilli pepper roots and grown in the field assumed to be contaminated by pesticides. The isolates of DSE fungi caused the growth of chili seeds were normal and abnormal. Seven DSE isolates were able to grow well at PDA medium suplemented with mancozeb at concentrations of 100, 200, 400, and 800 ppm with different levels of relative growth inhibition. Mancozeb on PDA medium influenced the mycelial growth and colony color of DSE fungal isolates. The biomass of DSE fungal isolates were reduced when they were grown at malt extract broth (MEB) medium suplemented various levels of mancozeb. Keywords: dithiocarbamat, relative growth inhibition, tolerant

Penyebab Penyakit Layu pada Tanaman Semangka di Karawang, Jawa Barat Kartini Budiastuti; Efi Toding Tondok; Suryo Wiyono
Jurnal Fitopatologi Indonesia Vol 8 No 4 (2012)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Wilt disease of watermelon is an important disease in Indonesia, but determination of the causal agent has not been reported yet. Postulat Koch based approach was conducted to determine the pathogen causing wilt of watermelon from Karawang, West Java. Fungi associated with wilt symptoms were isolated from stem and root, then the fungal colonies were identified based on their morphological characters. Pathogenicity tests were performed using soil media and wet paper. Host range study involved other Cucurbitaceae plants, i.e. cucumber, melon and paria. Three species of Fusarium were successfully isolated from plants showing wilt symptom, i.e. F. oxysporum, F. solani, and F. semitectum. The fungus F. oxysporum consistently caused the most severe wilt symptom on watermelon, but developed no symptom on other tested cucurbits. The two fungi, F. solani and F. semitectum, caused necrotic on roots and stem of watermelon followed by wilting of the plant. The symptom was different than those of the initial symptoms from the field. Therefore it concluded that wilt symptom of watermelon is caused by Fusarium oxysporum f.sp. niveum. Key words: Cucurbitaceae, Fusarium oxysporum f.sp. niveum, species identification, wilt

Cendawan Endofit Nonpatogen Asal Tanaman Cabai dan Potensinya sebagai Agens Pemacu Pertumbuhan Evan P. Ramdan; Widodo Widodo; Efi Toding Tondok; Suryo Wiyono; Sri Hendrastuti Hidayat
Jurnal Fitopatologi Indonesia Vol 9 No 5 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Endophytic fungi have been reported to have mutual symbiosis with their host. This research aimed to obtain nonpathogenic isolates of endophytic fungi from roots, stems, and branches of chili pepper. Endophytic fungi were isolated on 10% malt extract agar (MEA) after serial surface sterilization of plant parts. The effect of endophytic fungi on the development of chili pepper seeds were tested by growing seeds on media containing endophytic fungi isolate. As many as 138 isolates of endophytic fungi were successfully isolated from chili pepper plants from Garut and Bogor. Based on colony morphology the isolates can be differentiated into 9 morphotypes. Among the total isolates, 13.04% are nonpathogenic. Some of them (7,25%) do not effect seedling significantly compared to control and some isolates (5.79%) caused better seedling growth than control. Endophytic fungi having the potential to promote plant growth was identified as Aspergillus sp., Fusarium sp., Penicillium sp., sterile hyphae 1, 2, and 3.

Risiko Introduksi Gandum ke Timor Tengah Utara: Penyakit Hawar Daun dan Busuk Batang Aloysius Rusae; Efi Toding Tondok; Suryo Wiyono
Jurnal Fitopatologi Indonesia Vol 11 No 5 (2015)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Wheat has a great potency to be cultivated in Timor Tengah Utara (TTU). However, disease is one of the risks for introduction of wheat. The existence of wheat disease in TTU is unknown because wheat has never been grown in this area. This study aims to determine the potential risks of major diseases that will infect wheat plants when introduced to the TTU. The methods used in this study consisted of wheat cultivation in the field, followed by observation and identification of the main diseases on wheat. Wheat varieties grown in field were Dewata, Selayar and Nias. Koch’s postulate were performed to identify the suspected microbes as pathogens. Morphological-based identification was applied on the isolated pathogens. The main diseases on wheat cultivated in TTU were leaf blight and stem rot. The results of Koch’s postulate showed that Helminthosporium gramineum was the causal of leaf blight and Rhizoctonia sp. was the causal of stem rot. Disease incidence reached 82–93% and 11–22% for leaf bligh and stem rot disease, respectively. Disease severity of leaf blight and stem rot disease on var. Dewata was the lowest compared to var. Selayar and var. Nias.

Pengaruh Ekstrak Daun Sirih dan Metode Ekstraksinya Dalam Menghambat Penyakit Antraknosa pada Cabai Pascapanen Desi Trisnawati; Lilik Pujantoro Eko Nugroho; Efi Toding Tondok
Jurnal Fitopatologi Indonesia Vol 15 No 6 (2019)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Extract of Piper betle as An Inhibitor of Anthracnose Postharvest Disease on Chili Pepper Chili is a horticultural commodity that mostly needed by consumers in the fresh condition. However, there is an interval of time needed to deliver it from producers (farmers) to consumers. During the supply chain, deterioration of the quality of chilli fruit can occur by the presence of anthracnose disease caused by Colletotrichum spp. The use of syntetic fungicides to control anthracnose disease is not recommended because it will leave residues that are harmful to consumers. The alternative that can be done is to use botanical pesticides as fungicides. The aim of this research is to study the potential of Piper betle leaves extract (PLE) in inhibiting the development of the antracnose disease caused by Colletotrichum acutatum on the chili during storage. The sequences of this research were strarted with production of PLE by boiling method which was preceded by blanching, chopping, and without treatment of betel leaves, then bioassay of betel extract by measuring the diameter of fungus growth on PDA+ PLE. The third test was application of PLE on fresh chili fruits by spraying and soaking, continued by observed the antracnoseinsidence on chili during storage time (21 days). The results showed that the chopping method was the best betel leaf extraction method among other treatments, the use of 10% PLE concentration was the most effective concentration in inhibiting the growth of C. acutatum in vitro, spraying treatment using 10% EDS was the most effective in inhibited the insidence of anthracnose disease.

Eksplorasi Cendawan Endofit Asal Padi Sawah sebagai Agens Pengendali Penyakit Blas pada Padi Sawah Irwanto Sucipto; Abdul Munif; Yadi Suryadi; Efi Toding Tondok
Jurnal Fitopatologi Indonesia Vol 11 No 6 (2015)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Blast disease (Pyricularia oryzae) in Indonesia is initially known to cause problem on upland rice, but since 2000’s blast disease was also reported occurred on lowland rice. Application of endophytic fungi is very potential to be used as disease control method. This study was conducted to isolates endophytic fungi from lowland rice, and determine its capability to reduce blast disease severity. Isolation of endophytic fungi was done from root, tiller, and the leaves of lowland rice. Kencana Bali variety was used for in vivo inhibition test due to its most susceptible response against P. oryzae. Forty seven endophytic fungi isolates were obtained from Bogor, Sukabumi and Blitar. Based on colony morphology, endophytic fungi can be differentiated into 9 morphotype. Four out of fourteen endophytic fungi showed antibiosis activity in in vitro inhibition test against P. oryzae. Inhibition test conducted on Kencana Bali variety in the green house showed that four isolates was able to suppress blast disease development by 30-70%.

Co-Authors , Widodo . Giyanto Abdjad Asih Nawangsih ABDUL MUNIF Abdul Munif Ali Wafa Alisya Talita Papona Aloysius Rusae Ana Septiana Saputri Andika Septiana Suryaningsih Anis Mutirani Atit Kanti Atit Kanti Bonjok Istiaji Bonny Poernomo Wahyu Soekarno Bonny Poernomo Wahyu Soekarno Dede Maryana Desi Andini Desi Trisnawati Desy Nur Avifah devi ayu komalaningrat Diny Dinarti Dwi Andini Shiami Eka Wijayanti Evan P. Ramdan Fitri Kemala Sandra Fitrianingrum Kurniawati, Fitrianingrum Giyanto Giyanto Giyanto Hagia Sophia Khairani Heriyanto Syafutra Hermanu Triwidodo I Made Sudiana I Made Sudiana I Nyoman Sumerta Idris Idris Irwanto Sucipto Jean Nihana Manalu Kartini Budiastuti Kikin H Mutaqin Kustiariyah Tarman Kusumah, Yayi Munara Lilik Pujantoro Eko Nugroho Lilik Retnowati Maggy Thenawidjaja Suhartono Marianah, Lisa Masrukhin Masrukhin Meity Suradji Sinaga Meity Suradji Sinaga MEITY SURADJI SINAGA Meity Suradji Sinaga Melli Fitriani nFN Khaerati Nofiyanti, Sri Handayani Nurholis Nurholis Papona, Alisya Talita Parlindo, Fitra Paulus Woyen Pratiwi, Rizky Nomi Ramdan, Evan Purnama Rika Estria Gurusinga Rizky G S Purnama Sari, Rahmah Dian Sa’adah, Rima Nur Halimatu Siti Juariyah Slamet Widodo Slamet Widodo SRI HENDRASTUTI HIDAYAT Sukmana, Andra Sahab Supramana Surono Surono Suryo Wiyono Syam, Nur Asmasari Tanjung, Mei Rani Toga Pangihotan Napitupulu TRI ASMIRA DAMAYANTI Usman Ahmad Wawan Setiawan Widodo Widodo Widodo Widodo Widodo Widodo Yadi Suryadi Yayu Siti Nurhasanah Yunus Effendi

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