Seeds have a maximum soil burial depth beyond which they cannot successfully emerge
Multiple studies across various plant species confirm that seedling emergence declines or is completely suppressed beyond a maximum soil burial depth.
The retrieved papers consistently demonstrate that seed emergence is depth-dependent, with increased burial depths beyond an optimal threshold leading to reduced or completely inhibited successful seedling emergence.
Abu-Nassar J, Matzrafi M. Comparative study of seed germinations and phenology of population of the invasive weed Solanum rostratum Dunal in Israel.. 2025. https://doi.org/10.1038/s41598-025-29564-4
The study demonstrates that seedling emergence of Solanum rostratum declines as soil burial depth increases.
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Dar BA, Assaeed AM, Malik JA, Abd-ElGawad AM. Interactive effect of soil types, seed source, and burial depths on seedling emergence, survival, and growth of Haloxylon salicornicum: implications for habitat-specific adaptations.. 2026. https://doi.org/10.1186/s12870-026-08393-1
The study finds that seedling emergence, survival, and growth of Haloxylon salicornicum are depth-dependent, dropping at deeper levels.
Huang M, Yang P, Xiang J, Niu M, Lin J, Chen J. From Seed to Seedling: Constraints Imposed by Warming, UV-B, and Burial Depth on Alpine Cushion Plant Recruitment.. 2026. https://doi.org/10.1002/ece3.72814
Research shows that deep seed burial exceeding 1 cm significantly suppresses seedling emergence in alpine cushion plants.
Zare A, Elahifard E. Germination ecology and environmental influences on prickly golden fleece (Urospermum picroides) and implications for weed management.. 2025. https://doi.org/10.1038/s41598-025-17501-4
The study notes that maximum seedling emergence of Urospermum picroides occurs at an optimal shallow burial depth.
Nguyen N, Bickel T, Kalaipandian S, Adkins S. Seed Germination Ecology and Longevity of the Invasive Aquatic Plant <i>Sagittaria platyphylla</i>.. 2025. https://doi.org/10.3390/plants14203138
The experiment shows that Sagittaria platyphylla seedlings emerge only from surface-sown seeds with no emergence from buried seeds.
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
The study on Bahera indicates that seedling emergence and plant growth decrease as the depth of sowing increases.
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