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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Agro Bali: Agricultural Journal
Elkawakib Syam'un
Hasanuddin University
Agriculture, Biological Sciences & Forestry Engineering

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Breaking Dormancy of Shallot (Allium ascolonicum L.) Bulb Using Hydrogen Peroxide Nurfaida Nurfaida; Elkawakib Syam'un; Fachirah Ulfa; Katriani Mantja; Muhammad Faried
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.205-212

Abstract

Shallot bulbs have a dormancy period, so they must be stored for 3-4 months. This condition inhibits the acceleration of planting, which has a short time, so efforts are needed to accelerate the dormancy period by using hydrogen peroxide. This research was carried out from June to July 2023 at the Screen House, Teaching Farm, Faculty of Agriculture, Hasanuddin University. The study was arranged in a randomized block design with a two-factor factorial design. The first factor is the variety of Mentes, Rubaru, Violetta 2 Agrihorti, Kramat 1, and Ambassador 3 Agrihorti. The second factor is hydrogen peroxide concentration with three levels, namely 0%, 10% and 20%. The results showed that breaking the dormancy of shallot bulbs using hydrogen peroxide at a concentration of 20% effectively triggered the process of bulb growth in the various shallot varieties tested, marked by an increase in the percentage of rooted and sprouted bulbs. The Rubaru and Mentes varieties had an excellent response to 20% hydrogen peroxide immersion, indicated by a shorter rooting and sprouting time, compared to other varieties and concentrations of hydrogen peroxide. Therefore, hydrogen peroxide with a concentration of 20% can be used to break dormancy in shallot bulbs. However, further studies are needed on growth and production in the field and the quality and safety of shallot bulbs. Keywords: Bulb, Dormancy, Hydrogen peroxide, Shallot.
Effects of Dormancy-Breaking Agents and Vernalization Temperatures on Dormancy Release and Sprouting of Shallot Bulbs Masrinda Oktavia; Elkawakib Syam'un; Tigin Dariati
Agro Bali : Agricultural Journal Vol 9, No 2 (2026)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v9i2.2770

Abstract

Post-harvest dormancy in shallot (Allium cepa L. var. aggregatum) seed bulbs delays sprouting and disrupts planting schedules. While gibberellic acid (GA₃), hydrogen peroxide (H₂O₂), and vernalization each break dormancy, their combined effects have not been evaluated. The study, conducted in October 2025 at the Hasanuddin University Teaching Farm in Indonesia, is the first to evaluate the factorial effects of GA₃ or H₂O₂ combined with vernalization on dormancy breaking. Lokana shallot bulbs underwent vernalization for 14 days at room temperature, 5°C, or 10°C, followed by treatment with either no agent, GA₃ (100 mg L⁻¹, 6 h), or H₂O₂ (20%, 2 h), using a 3 × 3 randomized complete block design (27 plots, 1.215 plants). Data analysed using ANOVA followed by HSD at the 5% level and Pearson’s correlation. Significant interactions (p < 0.05) between dormancy-breaking agents and vernalization were observed for most germination rate and sprouting time parameters. The combination of H₂O₂ treatment with 5°C vernalization produced the fastest sprouting, achieving the highest sprouting rate index (SSI = 6.91) and rate coefficient (CVG = 12.78), the shortest mean sprouting time (MSpT = 7.86 days), and the lowest time to 50% sprouting (T50 = 7.06 days), outperforming both the control (SSI = 2.82; MSpT = 16.90 days; T50 = 16.86 days) and GA₃ treatments. Sprouting synchrony and uniformity remained unaffected. The combined application of H₂O₂ and short-duration cold vernalization represents a practical and cost-effective approach to reducing dormancy and expediting planting readiness in shallot seed production.
Co-Authors Fachirah Ulfa Katriani Mantja Masrinda Oktavia Muhammad Faried Nurfaida Nurfaida Tigin Dariati