You are here

Guide to Soybean Growth Stages

Filed Under:
Publication Number: P4028
View as PDF: P4028.pdf

 Vegetative Growth Stages

""
VE Cotyledons emerged through the soil surface.
""
VC Cotyledons and unifoliate leaves fully expanded.
""
V1 One node with fully developed trifoliate leaves.
""
V2 Two nodes with fully developed trifoliate leaves.
""
V3 Three nodes with fully developed trifoliate leaves.
""
V(n) (n) number of nodes with fully developed trifoliate leaves.

Reproductive Growth Stages

""
RFirst flower anywhere on the plant.
""
RA flower at one of the two uppermost nodes.
""
R3/16-inch-long pod in one of the upper four nodes.
""
R3/4-inch-long pod in one of the upper four nodes.
""
RBeginning of seed development with seed 1/8 inch long in a pod at one of the upper four nodes.
""
RFull seed with pod containing seed that completely fill the pod cavity at one of the upper four nodes.
""
R6.5 Pod containing seed that completely separate from the protective membrane of the pod wall at one of the upper four nodes.
""
ROne pod of mature color anywhere on the main stem.
""
RFull maturity: 95% of pods have reached mature pod color. Additional drying time needed before reaching seed moisture content desired for harvest.

Publication 4028 (POD-07-24)

By Trent Irby, PhD, Extension Associate Director and Professor; Brittany Elliott, Extension Associate II; Garrett Oswalt, Extension Associate II; and Paul O’Neal, Extension Technician, Plant and Soil Sciences.

Department: Plant and Soil Sciences
Print Friendly, PDF & Email

The Mississippi State University Extension Service is working to ensure all web content is accessible to all users. If you need assistance accessing any of our content, please email the webteam or call 662-325-2262.

Authors

Portrait of Dr. Trent Irby
Associate Director & Professor
Extension Associate II
Extension Associate II
Extension Technician

Your Extension Experts

Portrait of Dr. Trent Irby
Associate Director & Professor

Related News