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All Journal Jurnal Fitopatologi Indonesia Research Journal of Life Science Plantropica: Journal of Agricultural Science Journal of Tropical Plant Protection
Maknunin, Lu'lu'il
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology

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Pathogenicity Test and Molecular Characterization of Colletotrichum spp. Fungi Causing Apple Fruit Rot Disease in Malang Regency Maknunin, Lu'lu'il; Abadi, Abdul Latief; Syib'li, Muhammad Akhid
Research Journal of Life Science Vol 10, No 3 (2023)
Publisher : Direktorat Riset dan Pengabdian Masyarakat, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rjls.2023.010.03.4

Abstract

Apple (Malus sylvestris Mill) is a key commodity in Malang Regency, Indonesia, because of its role in promoting the agrotourism sector. But fruit rot caused by Colletotrichum spp. poses significant threats to production and its existence. This study aims to identify the causal agents of fruit rot in apple orchards in Pujon District, Malang, using morphological and molecular approaches. Four isolates suspected to be Colletotrichum spp. were obtained from symptomatic apple fruits and characterized through macroscopic, microscopic, and molecular methods, including ITS sequencing. Pathogenicity tests revealed that all isolates induced symptoms on healthy apples, with Colletotrichum siamense confirmed as the primary pathogen via BLAST analysis. These findings emphasize the need for accurate morphological and molecular identification to develop effective management strategies. Further research is recommended to examine the diversity of Colletotrichum species in Malang Regency to inform broader disease control strategies.
RETRACTED : The Role of Trichoderma sp. as a Biocontrol Agent in Suppression of Root Rot Disease and Soybean Plant Biostimulants Maknunin, Lu'lu'il; Abadi, Abdul Latief; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 6 No. 1 (2025)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2025.006.1.2

Abstract

This article has been retracted at the request of the author. The author has published the article in the Jurnal Fitopatologi Indonesia (JFI).
Exploration of Pathogenic Microbes and Antagonistic Agents in Apple Production Centers in Malang Regency Abadi, Abdul Latief; Choliq, Fery Abdul; Trianti, Irisa; Maknunin, Lu'lu'il; Yulianti, Novi Dwi
Plantropica: Journal of Agricultural Science Vol. 9 No. 1 (2024)
Publisher : Department of Agronomy, Faculty of Agriculture, Brawijaya University

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Abstract

The apple farming group is one of the built of Department of Plant Pests and Diseases, Agricultural Faculty, Brawijaya University. In 2019, this departmen received a request from apple farmers in Madiredo Village, Pujon District to held an assistance programs of apple cultivation and environmentally pest control. This is related with the increasing of fruit rot and other diseases which is caused a decrease of apple production especially in Malang Regency. In general, apple farmers still rely on disease control using chemical fungicides which can have a negative impact on the environment and create resistance to pathogenic fungi. Therefore, this research was carried out to explore and study the potential of biological agents in apple production centers in Malang Regency, specifically in Poncokusumo, Pujon, and Batu District on conventional fields and mixed fields. This research was held observationally through fields surveys and farmer interviews, took soil samples and disease samples then then isolating, identifying and testing for antagonism at laboratory. Based on interviews and observation of symptomology, two dominant diseases were found, namely fruit rot disease (Gloeosporium sp.) and marsonina leaf spot disease (Marssonina coronaria). The results of exploration of the rhizospheric apple plants obtained isolates on conventional fields in Kec. Pujon has the highest abundance of fungal colonies compared to other regions. Based on the results of the antagonism test for pathogenic fungi and biological agents, it was found that the isolate codes KH.C, KK.A, JK.B, JK.J, and BK.B had the highest percentage of inhibition or the most effective in controlling the pathogen Gloeosporium sp. So in the next, the species can be identified molecularly.
Peran Trichoderma spp. sebagai Agen Biokontrol pada Penyakit Rebah Semai dan Biostimulan Kedelai: The Role of Trichoderma spp. as a Biocontrol Agent of Damping Off Disease and Soybean Biostimulant Maknunin, Lu'lu'il; Abdul Latief Abadi; Fery Abdul Choliq
Jurnal Fitopatologi Indonesia Vol. 20 No. 6 (2024): November 2024 - IN PROGRESS
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.20.6.304-314

Abstract

The Role of Trichoderma spp. as a Biocontrol Agent of Damping Off Disease and Soybean Biostimulant   Domestic demand for soybeans in Indonesia continues to increase each year, yet the average production has declined. To meet national needs, the government must even import soybeans. One of the causes of low soybean production is damage from plant pests and diseases, particularly damping-off caused by Sclerotium rolfsii, which can lead to total plant death under severe infection. One promising, environmentally friendly, and cost-effective approach to disease management is the use of biological control agents such as Trichoderma spp., which function not only as biocontrol agents but also as biostimulants. This research was conducted at the Plant Pest and Disease Laboratory, Faculty of Agriculture Brawijaya University and Central Laboratory of BALITKABI for in vitro experiments and in vivo study located at a greenhouse of Agriculture Experimental Land Brawijaya University, Jatimulyo, Lowokwaru, Malang. A completely randomized design was used with five treatments and five replications. Applications of Trichoderma harzianum and T. asperellum, either individually or in combination, successfully reduced the incidence and severity of damping-off disease by 14% to 26.6% under field conditions. These treatments also increased the total phenolic content of the plants, indicating enhanced resistance, thus supporting the role of Trichoderma as an effective biocontrol agent. In addition, the combined application of Trichoderma species significantly increased the number of soybean leaves, indicating a biostimulant effect.
Co-Authors Abdul Latief Abadi Fery Abdul Choliq Irisa Trianti Syib'li, Muhammad Akhid Yulianti, Novi Dwi