Vermicompost Leach's Effect on Onion Seed Germination and Seedling Emergence in Response to Drought Stress
DOI:
https://doi.org/10.24925/turjaf.v13i2.279-284.6954Keywords:
Vermicomposting priming (VCP), polyethylene glycol (PEG), hydropriming, seedling vigor index (SVI), germination rate index (GRI), germination stress tolerance index (GSTI), Promptness IndexAbstract
The Seed Technology Division, BARI, Gazipur, Bangladesh carried out a lab experiment in 2020–2021 to find the best vermicompost treatment for enhancing seed germination and seedling emergence in an environment of drought stress. With 4 replications, the experiment used a 2-factorial completely randomized design. Five different amounts of priming were applied to onion seeds: hydropriming, 5% vermicompost priming (VCP), 10% VCP, 15% VCP, and untreated control. In addition, the onion seedlings were treated with 10% and 15% PEG, two different levels of drought stress. BARI Piaj-4 onion was the kind that was used. The findings demonstrated that, under drought-stressed situations, seed priming with vermicompost leach improved seed germination and seedling emergence percent. especially, the vermicompost leach at 10% under 10% PEG drought stress condition showed the best results in terms of promptness index (123), germination stress tolerance index (84.25%), seed germination (90%), seedling emergence percentage (81%), and seedling vigor index (614).
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