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Journal : Cropsaver : Journal of Plant Protection

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.
Co-Authors Achmad Fiqri Agustin, Eva Tri Aldi Kurniansyah Amir, Faradila anggreini, riski ayu Anita, Tri Yuli Arga Dwi Indrawan Ari Wijayanti Arika Purnawati Arika Purnawati Barna Deta Cristin Naftaly Cantika, Gabriella Choerunnisa, Agustya Salma Damayanti, Alfa Dirsista Didik Utomo Pribadi Didik Utomo Pribadi Dita Megasari Djiwanata, Indra Elly Syafriani Elly Syafriani Erlyana Desy Rahmawati Fathirsyam, Kemal Fatimah Lailatus Saadah Fitri Wijayanti Habibah, Isnaini Ainun Haidar Fari Aditya Hasbulloh, Mu'arif Ihza Herry Nirwanto Hery Nirwanto, Hery Imanadi, Latief Indah Nathasya, Rachmawaty Karuniadin Mukti, Ahmad Novarda Laksamana Agadhia Raharjo Laksmi Diana Lestari, Safira Rizka Mahendra Kusuma, Ramadhani Marlina, U'ud Uda Mochammad Mirza Saputra Mubarok, Basroh Saepul Muhammad Arif Wahyudin Muhammad Arif Wahyudin Muhammad Qoyyimul Amri Musarofa, Musarofa Nugroho, Tito Ridho Okta Gegana Purwadi Penta SURYAMINARSIH Prasetyo, Dandy Putri, Fanny Etrisya Putri, Redwika Clarissa Putri, Vadila Mulia Ramadhani Mahendra Kusuma Ramdan Hidayat Retno Widya Ningrum Risdiyanti, Rateh Lailatul Safira Rizka Lestari Saputra, Mochammad Mirza Saputra, Mochammad Mirza Suharto Suputa Suputa Tri MUJOKO Trijanti A. Widinni Triwahyu, Endang Ukhrowi, Syerlina Titis Muawanah Widajati, Wiludjeng Widayati, Wiludjeng Wijayanto, Mohamad Adi Wiludjeng Widayati Windriyanti, Wiwin Wiwik Sri Harijani Wiwin Windriyanti Wiwin Windriyanti Yenny WURYANDARI YUDI NUR SUPRIADI Yulifada, Dede Angelina Zetta Rasullia Kamandang