Pisum sativum L.
Legume Types
- Field (VE–R7)
- Fresh (VE–R4) Peas
Germination And Emergence Stages
VE • Epicotyl has emerged from soil
VS • Two small scale leaves appear on stem
Vegetative Stages (1 or more pairs of leaflets)
V1 • 1st true leaf unfolded at 1st node above VS, no tendril
V2 • 2nd true leaf unfolded at 2nd node, tendril present
V3 • 3rd true leaf unfolded at 3rd node, tendril present
Vn • nth true leaf unfolded at nth node, tendril present
Reproductive Growth Stages
R1 • Flower bud present at one or more nodes [Fig. 1]
R2 • First open flower at one or more nodes [Fig. 2]
R3 • First flat pod present at one or more nodes
R4 • Green seeds fill the pod cavity at one or more nodes [Fig. 3]
R5 • Leaves start yellowing and lower pods turn yellow to brown
R6 • Dry seeds fill the pod cavity at one or more nodes
R7 • Most pods are yellow to golden-brown
- http://legume.ipmpipe.org
- http://wiki.bugwood.org/PIPE:Legume
- http://www.apsnet.org/ - Compendium of Pea Diseases and Pests, 2nd Ed.
Courtesy of Sam Markell & Kevin McPhee (North Dakota State University), and Weidong Chen (USDA-ARS at Washington State University) [07/10]