Plant seeds benefit from being buried in the soil
Plant seeds generally benefit from being buried in soil, as light covering protects against predators and provides optimal conditions for germination and emergence, though excessive depth can hinder growth.
Multiple studies demonstrate that seeds benefit from being buried at shallow depths (1-3 cm) rather than remaining entirely on the surface or being buried too deeply, as burial protects seeds and promotes successful germination and emergence.
ASTHA GUPTA, RAMAKANT TEWARI, S. L. MEENA. EFFECT OF SOIL MEDIA AND DEPTH OF SEED SOWING ON SEED GERMINATION AND SEEDLING GROWTH OF BAHERA, TERMINALA BELLERICA. 2017. https://doi.org/10.33451/florafauna.v23i1pp53-62
Demonstrates that sowing seeds at a shallow depth (e.g., 2.0 cm) successfully yields high germination rates.
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Yuan-Yuan Tao, Tian-Cui Shang, Jun-Jie Yan, Yun-Xia Hu, Yu Zhao, Ying Liu. Effects of sand burial depth on Xanthium spinosum seed germination and seedling growth.. 2022. https://doi.org/10.1186/s12870-022-03424-z
Shows that optimal sand burial (1-3 cm) supports seedling emergence and growth compared to surface conditions.
Martin Søndergaard Jørgensen, Rodrigo Labouriau, Birgit Olesen. Seed size and burial depth influence Zostera marina L. (eelgrass) seed survival, seedling emergence and initial seedling biomass development.. 2019. https://doi.org/10.1371/journal.pone.0215157
Indicates that seed burial in sediment protects against predation and aids successful seedling establishment.
Muhammad Mansoor Javaid, Athar Mahmood, Dalal S Alshaya, Muneera D F AlKahtani, Hasnain Waheed, Allah Wasaya, Sher Aslam Khan, Maria Naqve, Imran Haider, Muhammad Adnan Shahid, Muhammad Ather Nadeem, Saira Azmat, Bilal Ahmad Khan, Rashad Mukhtar Balal, Kotb A Attia, Sajid Fiaz. Influence of environmental factors on seed germination and seedling characteristics of perennial ryegrass (Lolium perenne L.).. 2022. https://doi.org/10.1038/s41598-022-13416-6
Finds that shallow burial (1 cm) yields 90% emergence compared to no emergence directly on the soil surface.
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