Abstract
The presence of the seed coat delays the early stages of germination of soybean embryos. This retardation seems to be due to the seed coat acting as a mechanical barrier to seedling. Although entire soybean seeds are insensitive to light, removal of the seed coat induces a light requiring condition. The early germination of naked seeds or isolated embryonic axes is enhanced by darkness. Red light produced a similar effect as white, providing evidence for the effective wavelength of the photo-inhibition. Far-red light acted similarly to darkness in promoting the early germination of the embryos. It is suggested that possibly light may act through phytochrome by the high irradiance system.
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Valio, I.F.M. The role of seed coat in early stages of soybean germination. Biol Plant 28, 258–264 (1986). https://doi.org/10.1007/BF02902289
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DOI: https://doi.org/10.1007/BF02902289