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Optimization and diffusion of onion healthy seedling cultivation technology by vertical bed frame in response to strong winds and rainfall in Hengchun area

  1. Developed and evaluated four seed pelleting methods for onion plug seedling production on a vertical rack system, establishing an optimized seed pelleting protocol.
  2. Established one facility-based vertical rack system for onion plug seedling production and developed a standardized vertical seedling production model.
  3. Conducted a comprehensive evaluation of onion plug seedling production using the vertical rack system, validating seedling quality, growth performance, and the feasibility of technology dissemination and practical application.
Figure 1. Germination rate at 7 days after sowing of onion cultivar '708' following seed coating treatments with weight gain ratios of 250%, 500%, 750%, and 1000%.
▲Figure 1. Germination rate at 7 days after sowing of onion cultivar '708' following seed coating treatments with weight gain ratios of 250%, 500%, 750%, and 1000%.
  Figure 2. Germination rate at 12 days after sowing of onion cultivar '708' following seed coating treatments with weight gain percentages of 250%, 500%, 750%, and 1000%.
▲Figure 2. Germination rate at 12 days after sowing of onion cultivar '708' following seed coating treatments with weight gain percentages of 250%, 500%, 750%, and 1000%.
Figure3. Vertical rack system for facility-based onion plug seedling production.
▲Figure3. Vertical rack system for facility-based onion plug seedling production.
Figure 4. Plant height, pseudostem diameter, number of leaves, and survival rate of onion cultivar '708' (left), and the growth performance of the plants (right).
▲Figure 4. Plant height, pseudostem diameter, number of leaves, and survival rate of onion cultivar '708' (left), and the growth performance of the plants (right).