Heavy rainfall in late summer and fall occasionally leads to flooding of soybean fields at or near crop maturity. The extent of crop damage depends on stage of maturity, depth of flood waters, period of flooding, amount of lodging caused by flowing water, and other environmental factors. This Field Facts will discuss fall flooding damage to soybeans.
Appendix 1. Soybean growth stages and approximate seed moisture, days to maturity and yield loss from plant damage or death that stops seed development before full maturity.
Stage R6 - Full Seed Stage
Stage R6.5 - Mid-way from Full Seed to Maturity
Stage R7 - Beginning Maturity Stage