Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : Cropsaver : Journal of Plant Protection

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.
Bioencapsulation of Streptomyces sp. with Sodium Alginate for Control Fusarium sp. in Shallot Plants Widyananda, Kanaya Syafina; Purnawati, Arika; Wiyatiningsih, Sri
CROPSAVER - Journal of Plant Protection Vol 8, No 2 (2025)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v8i2.67882

Abstract

This study investigated the effects of Streptomyces sp. encapsulated in sodium alginate beads on the growth and health of shallot (Allium cepa L.) plants. Different sodium alginate concentrations (2%, 2.5%, and 3%) and application timings (7 days before transplanting and at transplanting) were tested. The mass and diameter of the beads showed slight decreases over storage time, indicating some shrinkage but maintaining structural integrity to protect the bacteria. Encapsulation efficiency was highest at 3% sodium alginate, which also correlated    with    increased    bead     stability.     Viability     tests     revealed that Streptomyces maintained high colony-forming units (CFU) across the treatments, confirming the protective effect of the encapsulation. Application of beads significantly reduced Fusarium wilt disease intensity and improved bulb weight. Treatments with higher sodium alginate concentrations and earlier application times showed the most pronounced benefits. These findings demonstrate that beads using optimal sodium alginate concentration and timing enhance microbial viability and biological control efficacy, contributing to healthier and more productive shallot cultivation.
Biodegradation Potential of Streptomyces sp. Against propineb-Based 70% Fungicide Under In Vitro Conditions Sari, Nadya Naurah; Mujoko, Tri; Wiyatiningsih, Sri
CROPSAVER - Journal of Plant Protection Vol 8, No 2 (2025)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v8i2.66871

Abstract

The intensive use of propineb-based fungicides in agriculture can negatively affect the environment due to toxic and persistent residues in soil. An environmentally friendly approach to reduce these impacts is bioremediation using microorganisms such as Streptomyces sp. This study aimed to examine the tolerance and biodegradation potential of Streptomyces sp. toward 70% propineb fungicide under in vitro conditions. The research was conducted at the Plant Health 1 Laboratory, Universitas Pembangunan Nasional “Veteran” East Java, from June to August 2025. The experiments were carried out in two stages: (1) a tolerance assay on Glucose Nutrient Agar containing propineb at 0; 0,50; 1,00; 1,50; and 2,00 g/L, and (2) a degradation assay using a dual-culture method with Colletotrichum sp. as a bioindicator. Observation variables included Total Plate Count (TPC) of Streptomyces sp., colony diameter of Colletotrichum sp., and the relative inhibition level (THR). Results showed that Streptomyces sp. was able to grow at all fungicide concentrations. The highest population was found in P0 (0 g/L) with 1,42×1013 CFU/mL with growth decreasing as propineb concentration increased, reaching the lowest level of 3,22×10¹⁰ CFU/mL in P4 (2.00 g/L). In the degradation assay, Colletotrichum sp. colony diameter decreased from 3,38 cm in P0 (0 g/L)  to 2,24 cm in P4 (2,00 g/L). Meanwhile, THR values increased consistently with fungicide concentration, rising from 3,17% in P0 (0 g/L)  to 35,48% in P4 (2,00 g/L).
Co-Authors Agustin, Indah Sari Dwi Alfia Rofika Sari Arika Purnawati Armadianty, Fany Risma Boleng, Maya Stolastika Deviyanti, Nur Qomariyah Dewi Anggraini Diasi, Ananta Rizki Didik Utomo Pribadi Dinda Rizka Rahayu Dita Megasari Dwi Afrian Dwi Afrian Dwi Suci Rahayu Eben, Philipus Wahyu Baskoro Eko Setiyo Wawan Elvira, Nolla Dwi Endang Triwahyu Prasetya Endang Triwahyu Prasetyawati Ersyaf, Ihza Muhammad F. Deru Dewanti Fajri Rizky Saptono Faradila Amir Farisa Fitri Wijayanti Fitriya Pebriana Gusdino Hasyidan Gusdino Hasyidan Harijani, Wiwik Sri Haykal, Arkan Hendra Wahyudi Ariyono Hendra Wahyudi Ariyono Herry Nirwanto Hery Nirwanto, Hery Ika Nur Fitriana Indah Anita Sari Izza, Salsa Bila Ari Nur Kurniawan, Muhammad Izza Laila, Nita Nur Larrisa, Damasa Ines Lia Iswindari Mukaromah Maroeto ., Maroeto Maroeto Maroeto Moch Nur Yudha Moch. Arifin Mohamad Hipti Nabila Alysia Multazam Nauval Zakqy Nia Rulinggar Putri M Pangesti Nugrahani Penta SURYAMINARSIH Penta Suryaminarsih Pratama Wirya Atmaja Pribadi, Didik Utomo Ramadhani Mahendra Kusuma Rani, Sasiska Ratna Arifiani Sukmaningrum Retno Sulistiyowati Riko Setya Wijaya Robithotul Ummah Rosyiidah Sholihin, Alyaa Arwaa Santoso, Wahyu Sarah Hikmah Marieska Sarah Hikmah Marieska Sari, Nadya Naurah Sentoso, Wahyu Septikahady, Hani Shafa, Yola Salsabila Shavira Dwi Livita Reza Sigit Dwi Nugroho Sisko Budianto Siti Fatimatus Syahrok Surya Ari Widya Suryandika, Fadila Suwandi Syahrok, Siti Fatimatus Tri Mujoko Tri MUJOKO Tri Wahyu Prasetyawati, Endang Wahyu Santoso Wahyu Santoso Wahyu Santoso Wanti Mindari Widyananda, Kanaya Syafina Wijaya, Riko Setya Wiludjeng Widajati Wiludjeng Widayati Wiludjeng Widiyati Windriyanti, Wiwin Wiwik Sri Harijani Wiwik Sri Harijani Yenny WURYANDARI