Table 4 List of the 17 pod traits analysed. The code assigned to each character is indicated in parentheses. * 1, measured from digital images; 2, manually measured

Pod section (PodS)

PodSectionPerimeter (PSP)

cm

1

Section measure of 10 randomly chosen green pods cut on the position of the second seed

PodSectionArea (PSA)

cm²

1

Section measure of 10 randomly chosen green pods cut between the position of the second and third seed

PodSectionWidth (PSW)

cm

1

Section measure of 10 randomly chosen green pods cut on the position of the second seed, perpendicular to suture

PodSectionHeight (PSH)

cm

1

Section measure of 10 randomly chosen green pods cut on the position of the second seed, parallel to suture

1

Relation between PSH/PSW

PodSection circular (PSC)

1

Fit a circular shape of the section

Pod length

(PodL)

PodLengthPerimeter (PLP)

cm

1

Longitudinal measure of 10 randomly chosen green pods

PodLengthArea (PLA)

cm²

1

Longitudinal measure of 10 randomly chosen green pods

PodLengthWidth (PLW)

cm

1

Longitudinal measure of 10 randomly chosen green pods at the mid-length

PodLength (PL)

cm

1

Longitudinal measure of 10 randomly chosen green pods

PodLengthCurved (PLC)

cm

1

Longitudinal measure along a curved line through the pod of 10 randomly chosen green pods

Pod Length index (PL/PLC)

1

Level of curvature measure as relation between PL/PLC

N. seed per pod (NSP)

N. seed per pod (NSP)

seeds

2

Measure of 10 randomly chosen dry pods

Pod color (PodCol)

PodColor_L* (L*)

–

1

Measure of 10 randomly chosen green pod

PodColor_a* (a*)

–

1

Measure of 10 randomly chosen green pods

PodColor_b* (b*)

–

1

Measure of 10 randomly chosen green pods

PodColor (PCol)

2

Classified as green, yellow, purple, mottled green, and mottled yellow