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Ani Widiastuti
Universitas Gadjah Mada
Medicine & Pharmacology

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Identifikasi Cendawan Penyebab Penyakit Pascapanen pada Beberapa Buah di Yogyakarta Ani Widiastuti; Ovianne Hapsari Ningtyas; Achmadi Priyatmojo
Jurnal Fitopatologi Indonesia Vol 11 No 3 (2015)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (655.361 KB) | DOI: 10.14692/jfi.11.3.91

Abstract

In Indonesia, high yield losses due to post-harvest diseases are often difficult to measure because research focusing on such matter are still limited. This study aimed to determine the genera of fungi that cause rot on postharvest fruit, which can be used as a basis to determine the important pathogens in the current post-harvest commodities and for further disease management. The method used is sample collection, single spore isolation, microscopic observation and identification of fungal genera. Colletotrichum sp. was sucessfuly isolated from antrachnose of papaya. Pestalotia sp. was found in the fruit rot of avocado and star fruit. Lasiodiplodia sp. was found in mango, while Pestalotia sp. and Lasiodiplodia sp. was found in both sapodilla and banana. Alternaria sp. was found in the fruit rot of pears and apples. Aspergillus sp. was found in grapes, and Fusarium sp. was isolated from pineapple fruit rot.
Keragaman Rhizomikrobiom Bawang Merah dan Penekanan Penyakit Moler dengan Perlakuan Bacillus spp. dan Trichoderma asperellum Dini Sundari; Arif Wibowo; Tri Joko; Ani Widiastuti; Arlyna Budi Pustika
Jurnal Fitopatologi Indonesia Vol 19 No 4 (2023): Vol. 19 No. 4 (2023)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14692/jfi.19.4.156-165

Abstract

Twisted disease (Fusarium spp.) is an endemic disease that reduces shallot production in the coastal land area of Samas, Bantul, Yogyakarta. The application of Bacillus spp. can suppress the twisted disease by secreting secondary metabolites and enhancing soil suppressiveness. This study aimed to determine the effectiveness of adding spraying Bacillus spp. on the disease incidence, production of shallots, and their effect on the diversity of rhizomicrobiome by culture microbe approaches. Bacillus spp. with a density 108 cfu mL-1, Trichoderma asperellum 106 cfu mL-1 was applied by spraying to the shallot. Fungicide chlorothalonil, propiconazole, and prochloraz were used to control the disease. The diversity of rhizobacteria and fungi was analyzed using the ribosomal intergenic spacer analysis (RISA) method. Based on the analysis result, the addition of spraying B. velezensis B-27, combination B. velezensis B-27 and B. cereus RC76, and T. asperellum was unable to enhance the suppression of twisted disease, but it was able to enhance the production of shallot bulbs reaching 7.10, 7.80, and 8.43 ton ha-1. Furthermore, the result revealed the diversity of the rhizomicrobiome, spraying Bacillus sp. showed 39% differences in bacterial diversity with control while T. asperellum caused 43% difference in the diversity. Spraying Bacillus spp. has not been able to suppress the incidence of twisted diseases compared to control. However, the similar disease incidence on a spraying Bacillus spp. and control showed a higher production until 70% compared to control. This result showed that the addition of spraying Bacillus spp. able to increase the tolerance of shallot plants toward twisted disease.
Co-Authors Achmadi Priyatmojo Arif Wibowo Arlyna Budi Pustika Dini Sundari Ovianne Hapsari Ningtyas Tri Joko