Fig. 3
From: A novel rind puncture technique to measure rind thickness and diameter in plant stalks
A demonstration of the key points of the load–extension curve and how each relates to the physical features of the stalk cross section. Labeled points are: A—Point of initial contact, B—Midpoint, C—Point of reengagement, D—Exit (zero) plane. Diameter is calculated as the distance between points A and D whereas the rind thickness is calculated as the distance between points C and D