In WorldVeg we use the IBPGR descriptors for soyabean published in 1984 (https://cgspace.cgiar.org/handle/10568/72944). Individual descriptors are modified to better match the needs and conditions of WorldVeg.
WorldVeg GRSU Characterization Record Sheet for Glycine spp. (soybean). 2015. World Vegetable Center
recorded at the time when the primary leaves are expanded
| Code | Term | Description |
|---|---|---|
| 1 | Green | |
| 2 | Purple | |
| 999 | Mixture |
| Code | Term | Description |
|---|---|---|
| 3 | Determinate | |
| 5 | Semi-determinate | |
| 7 | Indeterminate |
| Code | Term | Description |
|---|---|---|
| 1 | 3 | |
| 5 | 4-6 | |
| 7 | 7 or more |
recorded with length (cm) x width (cm)
| Code | Term | Description |
|---|---|---|
| 3 | Small (70 cm2 or less) | |
| 5 | Medium (71 to 149 cm2) | |
| 7 | Large (150 cm2 and more) |
| Code | Term | Description |
|---|---|---|
| 3 | Narrow (1/w 2.2 or more) = ‘lanceolate’ | |
| 5 | Intermediate (1/w 1.9.2.1) | |
| 7 | Broad (1/W 1.8 or less) = ‘ovate’ |
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 3 | Sparse | |
| 5 | Semi- sparse | |
| 7 | Normal | |
| 9 | Dense | |
| 999 | Mixture |
| Code | Term | Description |
|---|---|---|
| 1 | Grey | |
| 2 | Light brown | |
| 3 | Brown = ‘tawny’ | |
| 999 | Mixture |
| Code | Term | Description |
|---|---|---|
| 1 | Erect | |
| 2 | Semi-appressed | |
| 3 | Appressed | |
| 4 | Curly | |
| 5 | Retrorse tip |
actual measurement in cm as mean of 20 randomly selected plants
actual measurement in cm as mean of 20 randomly selected plants
mean of 20 randomly selected plants
scored from leaning angle and lodging area (see table 1)
| Code | Term | Description |
|---|---|---|
| 0 | None | |
| 3 | Slight | |
| 5 | Moderate | |
| 7 | Severe | |
| 9 | Very severe |
number of days from planting to 50% of plants with at least one open flower
| Code | Term | Description |
|---|---|---|
| 3 | White | |
| 5 | Purple throat | |
| 7 | Purple | |
| 999 | Mixture |
| Code | Term | Description |
|---|---|---|
| 3 | Tan | |
| 5 | Brown | |
| 7 | Black | |
| 999 | Mixture |
mean of 20 randomly selected plants
mean of 20 randomly selected plants
estimated percent of pod splitting and seed shattering at a comparable time after maturity
| Code | Term | Description |
|---|---|---|
| 1 | No shattering | |
| 2 | Slight shattering | |
| 5 | Medium shattering | |
| 7 | Shattering | |
| 9 | Highly shattering |
actual percent
| Code | Term | Description |
|---|---|---|
| 1 | Yellowish white | |
| 2 | Yellow | |
| 3 | Green | |
| 4 | Light brown | |
| 5 | Brown | |
| 6 | Grey | |
| 7 | Imperfect black (black shading to buff) | |
| 8 | Black | |
| 9 | Other (specify) | |
| 999 | Mixture |
| Code | Term | Description |
|---|---|---|
| 1 | Light hilum | |
| 2 | Dark hilum | |
| 3 | Saddle | |
| 4 | Striped | |
| 999 | Mixture |
| Code | Term | Description |
|---|---|---|
| 1 | Yellow | |
| 2 | Buff | |
| 3 | Brown | |
| 4 | Green | |
| 5 | Grey | |
| 6 | Imperfect black (= black with buff outer ring) | |
| 7 | Black | |
| 8 | Other (specify) | |
| 999 | Mixture |
| Code | Term | Description |
|---|---|---|
| 3 | Shiny | |
| 5 | Intermediate | |
| 7 | Dull | |
| 9 | Heavy bloom | |
| 999 | Mixture |
measure in gm
| Code | Term | Description |
|---|---|---|
| 1 | Yellow | |
| 2 | Green |
percent on dry seed weight basis
percent on dry seed weight basis