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Journal : Cropsaver : Journal of Plant Protection

Competition of biological agents of Streptomyces sp, Gliocladium sp, and Trichoderma harzianum to Fusarium oxysporum in Tomato Rhizophere Penta Suryaminarsih; Tri Mujoko
CROPSAVER Vol 3, No 1 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (233.69 KB) | DOI: 10.24198/cropsaver.v3i1.24173

Abstract

Fusarium oxysporum is a soil-borne fungus that attacks all stages of tomato plant from seedlings to mature plants. The disease occurrence on the tomato nursery can lead economically loss due to its fast and massive damage. Application of effective biological control agents is considered as promising control measure of the disease. The aim of this study was to evaluate the potential competitiveness of biological agents mixture consisting of Streptomyces sp., Gliocladium sp. and T. harzianum against F. oxysporum f. sp. lycopersici in the rhizosphere of the tomato plant. The experiment was arranged in completely randomized design with five treatment types of agents that a single biological agents Streptomyces sp. (S), a mixture of Streptomyces sp. and Gliocladium sp. (SG), a mixture of Streptomyces sp. and T. harzianum (ST), a mixture of Streptomyces sp., Gliocladium sp., and T. harzianum (SGT) and control without biological agents. Each treatment was replicated four times and consisted of 6 plants for observation purposes destructively. Descriptive analysis conducted on the pattern of colonization of the roots competition showed a growth pattern colonization of biological agents, Streptomyces sp, Gliocladium sp, T. harzianum and F. oxysporum pathogen (SGTF) was the same growth pattern of SGF and STF, where four of the microbes grew on the same side of roots as fungal pathogens, in all parts of the root sprouts. Given biological agent Streptomyces sp, Gliocladium sp., dan Trichoderma harzianum decreased fusarium wilt diseases severity of tomato. Weight root of tomato plants was applied by biological agents was 9.2 g greater than  plant without biological agents, which were 2.5 g. The observation on tomato indicated root colonization occurs, especially on the base of the stem-roots by a mixture of biological agents T. harzianum and Gliocladium sp.
Study of Streptomyces spp. to control purple blotch disease caused by Alternaria porri in shallot plant Risdiyanti, Rateh Lailatul; Rahmadhini, Noni; Suryaminarsih, Penta; Mujoko, Tri
CROPSAVER Vol 6, No 1 (2023)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v6i1.43647

Abstract

Alternaria porri is a fungal pathogen that causes purple blotch on shallots, this fungus can cause crop yield loss of 3 – 57%. A. porri was obtained from the Sumber Brantas onion farm and then isolated by planting infected tissue. Streptomyces spp. is a filamentous bacterium that is abundant in the soil and can be used as a biological agent, decomposer and plant growth promote. Streptomyces spp. was obtained one isolate from shallot land location in Pare, Kediri, East Java (BMP: Bawang Merah Pare) and three isolates from Sidera, Palu, Central Sulawesi (BMS: Bawang Merah Sidera) (BMS1, BMS2, BMS3). The purpose of this study was to determine the efficacy of Streptomyces spp. to control A porri consist of in vitro and In vivo antagonist test. Antagonist test was carried out by dual culture method and the Streptomyces spp. which can inhibit the development of A porri would be used antagonist test   in vivo. The study was designed using a Factorial Complete Randomized Design with two factors, candidate isolates of biological control agents and concentrations of Streptomyces spp. be diluted into 5%, 10%, and 15%, it will applied on shallot plant Bauji variety. The results of the In vitro test shown the highest inhibition zone from BMP 17.75% while BMS1 13.75%, BMS2 8,75%, and 8.50%. in vivo test shown lowest disease severity value in BMP 15% concentration was 1.13% while diseases severity of BMS1 was 1.27%, and BMS2 was 1.80%. Therefore, Streptomyces spp. has potency as an alternative pesticide for sustainable agriculture.
Effect of Fobio on Intensity of Moler Disease (Fusarium oxysporum) on Various Shallot Cultivars Elvira, Nolla Dwi; Wiyatiningsih, Sri; Suryaminarsih, Penta
CROPSAVER Vol 6, No 2 (2023)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v6i2.45747

Abstract

Fusarium oxysporum is the pathogen that causes moler disease which can reduce the productivity of shallot plants. The use of cultivars greatly affects the production. Control method that is more environmentally friendly is currently being pursued towards organic farming. Fobio is a biopesticide containing plant root microorganisms as biological control agents. This study aims to determine the effect of Fobio biopesticide on Fusarium wilt (moler) disease incidence and production of three shallot cultivars. The experiment was conducted in the shallot planting area of Sukorejo Village, Rejoso District, Nganjuk Regency, East Java. This experiment was arranged in the split plot design with two factors. The main plot of the concentration of the biopesticide formula (Fobio) consisted of 3 levels namely control (chemical fungicide), 5 ml/liter, and 10 ml/liter, and the subplot of shallot cultivar consisted of 3 types namely Tajuk, Biru Lanchor, and Super Philip. The observation in this study were the incubation period, disease symptoms, disease intensity, and shallot bulb yield. The results showed that Fobio biopesticide at the concentration of 10 ml/liter caused the same disease suppression as chemical fungicide (control) in the three shallot cultivars with the disease incidence of 18.78%. Fobio biopesticide concentration of 10 ml/liter had also the same effect as chemical fungicide on the production of those shallot cultivars, with the average wet weight of 2.25 kg/treatment and dry weight of 1.49 kg/treatment.
Co-Authors Abifah, Serlia Nur Agustin, Indah Sari Dwi Aisyah Lulu Hariyanto Alifta Wiranthi Anita, Tri Yuli Ardhia Pramesti Cahyani Arga Dwi Indrawan Arika Purnawati Chairunnisa Faza Nabillah Diah Budi Kusumawati Didin Julia Trisnawati Difa Eka Pranoto Dinda Rizka Rahayu Dita Megasari Dwi Lestari Ekayanti, Savira Aprilia Elly Syafriani Elvira, Nolla Dwi Erdiansyah, Mochamad Bima Erlangga Dwi Fachruddin Fadila Suryandika Ferdianto Eko Wicaksono Firdi Ihza Rochman Guniarti, Guniarti Gusdino Hasyidan Gusdino Hasyidan Harsiyanti, Harsiyanti Haryani, Wiwik Sri Hery Nirwanto Hery Nirwanto, Hery Ida Retno Moeljani Iis Purnamawati Ika Nur Fitriana Ika Nur Fitriana Indah Sari Dwi Agustin Indrawan, Arga Dwi Jati Laksono, Roy Juniawan Laksamana Agadhia Raharjo Lestari, Safira Rizka Maemunah Maemunah Maharani, Salsabilla Diva Mahfud, Nur Aini Maroeto Maroeto Moch Sodiq Nawaal, Najvania Nolla Dwi Elvira Noni Rahmadhini Nugraha Iqbal Avrianto Nur Syiami, Aning Pangesti Nugrahani Prasetyawati, Endang Triwahyu Prasetyawati, Endang Triwahyu Pratista, Ariq Dies Pribadi, Didik Utomo Putranto Sasikirono Ramdan Hidayat Raniah, Nabilla Nur Rateh Lailatul Risdiyanti Risdiyanti, Rateh Lailatul Rizky Ika Noviyanti Rosyiidah Sholihin, Alyaa Arwaa Sa'adah, Fatimah Lailatus Safira Rizka Lestari Salfi Mauludhiea Firli Serlia Nur Abifah Setyo Budi Santoso Siti Fatimatus Syahrok Sri Wiyatiningsih Sri Wiyatiningsih Syahrok, Siti Fatimatus Tri MUJOKO Ummah, Robithotul Wanti Mindari Wiludjeng Widajati Wiludjeng Widayati Wiludjeng Widiyati Windriyanti, Wiwin Wiwik Sri Harijani Wiwik Sri Harijani Yenny WURYANDARI