Michigan State University Extension
Michigan Soybean Information - 00000006
11/16/00
Soybean Growth & Development - Germination and Emergence
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Germination begins when the soybean seed absorbs about
50% of its weight in moisture. The radicle or primary
root begins to extend downward within the next 12 to 24
hours. Shortly thereafter, the hypocotyl (the small stem
section between the cotyledonary node and the primary
root) begins to elongate upward, pulling the cotyledons
with it. Emergence of the cotyledons usually occurs
within three to six days after planting under ideal
environmental conditions. The time required for emergence
depends on soil moisture, temperature, seed vigor,
variety, and planting depth. Lateral root development
begins at emergence and becomes extensive by flowering.
This information is for educational purposes only. References
to commercial products or trade names does not imply
endorsement by MSU Extension or bias against those not
mentioned. This information becomes public property upon
publication and may be printed verbatim with credit to MSU
Extension. Reprinting cannot be used to endorse or advertise
a commercial product or company.
This file was generated from data base S1 on 11/16/00.
Data base S1 was last revised on 11/16/00.
For more information about this data base or its contents please contact
reinholt@michigansoybean.org . Please read our
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