The International Institute of Tropical Agriculture (GRC) maintain a significant numbers of Soybean morphological characterization from day of planting to harvest. These descriptors are used to characterize 598 accessions of Soybean in Ibadan, in 2021.
AGPG:IBPGR/84/183
| Code | Term | Description |
|---|---|---|
| 3 | White | |
| 5 | Purple throat | |
| 7 | Purple |
| Code | Term | Description |
|---|---|---|
| 1 | Yellow | |
| 2 | Green |
Number of days from planting to 50% seedling emergence
| Code | Term | Description |
|---|---|---|
| 1 | White | |
| 2 | Yellow | |
| 3 | Red | |
| 4 | Purple |
| Code | Term | Description |
|---|---|---|
| 1 | Yellow | |
| 2 | Buff | |
| 3 | Brown | |
| 4 | Green | |
| 5 | Grey | |
| 6 | Imperfect black | ( = black with buff outer ring) |
| 7 | Black | |
| 8 | Others | (specify in the NOTES descriptor, 11) |
Recorded at the time when the primary leaves are expanded
| Code | Term | Description |
|---|---|---|
| 1 | Green | |
| 2 | Purple |
Judged from the ratio of length/width of fully developed terminal leaflet on the middle part of main stems
| Code | Term | Description |
|---|---|---|
| 3 | Narrow | (I/w of 2.2 or more) = 'lanceolate' |
| 5 | Intermediate | (I/w of 1.9 to 2.1) |
| 7 | Broad | (l/w of 1.8 or less) = 'ovate' |
Scored from leaning angle and lodging area
Legend:
None
Slight
Moderate
Severe
Very Severe
Legend:
Tan
Brown
Black
Details to be worked out at each center.May be relative to a standard check variety.
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| + | Present |
Actual measurement in cm as means of 20 randomly selected plants
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| + | Present |
| Code | Term | Description |
|---|---|---|
| 1 | Grey | |
| 2 | Light brown | |
| 3 | Brown = ' tawny ' |
Legend:
Sparse
Semi-sparse
Normal
Dense
| Code | Term | Description |
|---|---|---|
| 1 | Erect | |
| 2 | Semi-appressed | |
| 3 | Appressed | |
| 4 | Curly | |
| 5 | Retrorse tip |
| Code | Term | Description |
|---|---|---|
| 1 | Yellowish white | |
| 2 | Yellow | |
| 3 | Green | |
| 4 | Buff | |
| 5 | Reddish brown | |
| 6 | Grey | |
| 7 | Imperfect black (black shading to buff) | |
| 8 | Black |
| Code | Term | Description |
|---|---|---|
| 1 | Light hilum | |
| 2 | Dark hilum | |
| 3 | Saddle | |
| 4 | striped |
Legend:
Shiny
Intermediate
Dull
Heavy bloom
Legend:
Poor
Medium
Good
Assessed when the first trifoliolate leaf expanded
Legend:
Poor
Medium
Vigorus
Estimated percent of pod splitting and seed shattering at a comparable time after maturity to be specified
Legend:
No shattering
Slight shattering
Medium shattering
Shattering
Highly shattering
Legend:
Determinate
Semi—determinate
Indeterminate
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| + | Present |