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<p>True shallot seed is an alternate source of seeds that is projected to increase the supply of high-quality shallot seeds. The seed-to-seed approach is interesting to develop because it can speed up the multiplication of shallot seeds in Indonesia. The aim of this study was to refine TSS (True Shallot Seed) production through a seed-to-seed technique, while also documenting its growth cycle in tropical conditions. To achieve this, a structured investigation was undertaken in three stages to identify optimal practices in fertilization, growth regulator application, and vernalization to boost TSS yields using the seed-to-seed method. A phenological study was also carried out to supplement the three stages of the study. The initial phase examined the fertilization and growth regulator treatments through a factorial design, pinpointing treatments P2 (600&#xa0;kg/Ha of NPK 16–16–16 + 5&#xa0;kg/Ha KCl) and H2 (soaking the seedlings in coconut water) as notably effective. Subsequent experimentation focused on assessing vernalization methods through a Randomized Complete Block Design (RCBD), where it was discovered that treatment V1 (5-day vernalization at 5&#xa0;°C) notably enhanced plant growth, bloom initiation, and TSS yield. A third stage of research appraised four comprehensive TSS production packages that integrated the most successful elements from the earlier investigations with considerations of plant spacing. From these, the technology package ‘C’, which encompassed 15&#xa0;cm × 15&#xa0;cm plant spacing, the P2 fertilization scheme, seedlings soaking in coconut water, and the V1 vernalization technique, was found to support superior plant development, flowering, and highest TSS production. The phenological aspect of the study revealed a duration of 130 to 147 days from the planting to TSS harvest. This phenological data, in tandem with the optimized seed-to-seed TSS production protocol identified, suggests significant potential for replication in similar agro-ecological contexts, paving the way for enhanced TSS cultivation.</p>

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Enhancing botanical seed yields via seed-to-seed techniques and understanding botanical seed phenology in shallots

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月2日

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  • Rini Rosliani,
  • Tri Handayani,
  • Mathias Prathama,
  • Rini Murtiningsih,
  • Ineu Sulastrini,
  • Asma Sembiring,
  • Retno Pangestuti,
  • Ade Dahlan Santosa,
  • Muhammad Prama Yufdy

摘要

True shallot seed is an alternate source of seeds that is projected to increase the supply of high-quality shallot seeds. The seed-to-seed approach is interesting to develop because it can speed up the multiplication of shallot seeds in Indonesia. The aim of this study was to refine TSS (True Shallot Seed) production through a seed-to-seed technique, while also documenting its growth cycle in tropical conditions. To achieve this, a structured investigation was undertaken in three stages to identify optimal practices in fertilization, growth regulator application, and vernalization to boost TSS yields using the seed-to-seed method. A phenological study was also carried out to supplement the three stages of the study. The initial phase examined the fertilization and growth regulator treatments through a factorial design, pinpointing treatments P2 (600 kg/Ha of NPK 16–16–16 + 5 kg/Ha KCl) and H2 (soaking the seedlings in coconut water) as notably effective. Subsequent experimentation focused on assessing vernalization methods through a Randomized Complete Block Design (RCBD), where it was discovered that treatment V1 (5-day vernalization at 5 °C) notably enhanced plant growth, bloom initiation, and TSS yield. A third stage of research appraised four comprehensive TSS production packages that integrated the most successful elements from the earlier investigations with considerations of plant spacing. From these, the technology package ‘C’, which encompassed 15 cm × 15 cm plant spacing, the P2 fertilization scheme, seedlings soaking in coconut water, and the V1 vernalization technique, was found to support superior plant development, flowering, and highest TSS production. The phenological aspect of the study revealed a duration of 130 to 147 days from the planting to TSS harvest. This phenological data, in tandem with the optimized seed-to-seed TSS production protocol identified, suggests significant potential for replication in similar agro-ecological contexts, paving the way for enhanced TSS cultivation.