A list of yam descriptors to characterize yam accessions conserved at NPGRL. We created the list based on IITA/IPGRI Dioscorea spp. descriptor list.
This is the unique identifier for accessions within a genebank, and is assigned when a sample is entered into the genebank collection
The NPGRL temporary accession number
Date of planting of the crop accessions
Site of planting in the field
Number of days between planting and emergence
Assessed at 20 days after emergence. Mean of 10 plants
Assessed at 20 days after emergence
Assessed at 20 days after emergence
| Code | Term | Description |
|---|---|---|
| 1 | Green | |
| 2 | Purplish green | |
| 3 | Brownish green | |
| 4 | Dark brown | |
| 5 | Purple | |
| 99 | Other |
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
Assessed at 20 days after emergence
| Code | Term | Description |
|---|---|---|
| 1 | Green | |
| 2 | Green with purple edges | |
| 3 | Purple | |
| 4 | Mixture | |
| 99 | Other (specify) |
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
Assessed at 30 days after emergence
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
Assessed at 30 days after emergence
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
| Code | Term | Description |
|---|---|---|
| 1 | Early | |
| 2 | Late |
Recorded at 30 days after emergence
| Code | Term | Description |
|---|---|---|
| 1 | Yellowish | |
| 2 | Pale green | |
| 3 | Dark green | |
| 4 | Purplish green | |
| 5 | Purple | |
| 99 | Other (specify) |
| Code | Term | Description |
|---|---|---|
| 1 | Yellowish | |
| 2 | Pale green | |
| 3 | Purple | |
| 4 | Purple green | |
| 5 | Pale purple | |
| 6 | Brownish | |
| 99 | Other |
| Code | Term | Description |
|---|---|---|
| 1 | Yellowish | |
| 2 | Green | |
| 3 | Pale purple | |
| 4 | Purple | |
| 5 | Purple green | |
| 6 | Brownish green | |
| 7 | Pale green | |
| 99 | Other (specify) |
| Code | Term | Description |
|---|---|---|
| 1 | All green with purple base | |
| 2 | All green with purple leaf junction | |
| 3 | All green with purple at both ends | |
| 4 | All purplish green with purple base | |
| 5 | All purplish green with purple leaf junction | |
| 6 | All purplish green with purple at both ends | |
| 7 | Green | |
| 8 | Purple | |
| 9 | Brownish green | |
| 10 | Brown | |
| 11 | Dark brown | |
| 99 | Other (specify) |
| Code | Term | Description |
|---|---|---|
| 1 | Green | |
| 2 | Green with purple edges | |
| 3 | Purple | |
| 99 | Other (specify) |
| Code | Term | Description |
|---|---|---|
| 0 | None | |
| 1 | Upper surface | |
| 2 | Lower surface | |
| 3 | Both |
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
| Code | Term | Description |
|---|---|---|
| 1 | Round | |
| 2 | Oval | |
| 3 | Oval-oblong | |
| 4 | Cylindrical | |
| 5 | Flattened | |
| 6 | Irreguar (not uniform) | |
| 7 | Elongated |
| Code | Term | Description |
|---|---|---|
| 1 | Greyish | |
| 2 | Light brown | |
| 3 | Dark brown |
| Code | Term | Description |
|---|---|---|
| 1 | Smooth | |
| 2 | Wrinkled | |
| 3 | Rough |
| Code | Term | Description |
|---|---|---|
| 1 | Light Purple | |
| 2 | Purple | |
| 3 | Purple with white | |
| 4 | White with purple | |
| 5 | Outer purple/inner yellowish | |
| 6 | Orange White | |
| 7 | Yellow Green | |
| 8 | Cream |
| Code | Term | Description |
|---|---|---|
| 1 | One | |
| 2 | Few (2-5) | |
| 3 | Several (>5) |
| Code | Term | Description |
|---|---|---|
| 1 | Completely separate and distant | |
| 2 | Completely separate but close together | |
| 3 | Fused at neck |
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
| Code | Term | Description |
|---|---|---|
| 0 | No corm | |
| 3 | Small | |
| 5 | Intermediate | |
| 7 | Large |
| Code | Term | Description |
|---|---|---|
| 0 | No | |
| 1 | Yes |
| Code | Term | Description |
|---|---|---|
| 1 | Round | |
| 2 | Oval | |
| 3 | Oval-oblong | |
| 4 | Cylindrical | |
| 5 | Flattened | |
| 6 | Irregular | |
| 7 | Elongated |
| Code | Term | Description |
|---|---|---|
| 0 | Unbranched | |
| 3 | Slightly branched | |
| 5 | Branched | |
| 7 | Highly branched |
| Code | Term | Description |
|---|---|---|
| 1 | Upper third | |
| 2 | Middle | |
| 3 | Lower third |
| Code | Term | Description |
|---|---|---|
| 3 | Few | |
| 5 | Intermediate | |
| 7 | Many |
| Code | Term | Description |
|---|---|---|
| 1 | Lower | |
| 2 | Middle | |
| 3 | Upper | |
| 4 | Entire tuber |
| Code | Term | Description |
|---|---|---|
| 0 | Absent | |
| 1 | Present |
| Code | Term | Description |
|---|---|---|
| 1 | <1mm | |
| 2 | >1mm |
Tuber skin color beneath the bark
| Code | Term | Description |
|---|---|---|
| 1 | Light maroon | |
| 2 | Dark maroon | |
| 3 | Greyish | |
| 4 | Purple | |
| 5 | Light Purple | |
| 6 | Dark Purple | |
| 7 | White | |
| 8 | White with purple | |
| 9 | Yellow | |
| 10 | Yellow Orange | |
| 11 | Yellow Green | |
| 12 | Yellowish white | |
| 13 | Cream | |
| 14 | Light Green | |
| 15 | Brownish |
| Code | Term | Description |
|---|---|---|
| 1 | Hard | |
| 2 | Easy |
| Code | Term | Description |
|---|---|---|
| 1 | White | |
| 2 | Yellowish white to off white | |
| 3 | Yellow | |
| 4 | Orange | |
| 5 | Light purple | |
| 6 | Purple | |
| 7 | Purple with white | |
| 8 | White with purple | |
| 9 | Yellow with purple | |
| 10 | White with pink | |
| 11 | Outer purple/inner yellowish | |
| 12 | White with yellow | |
| 13 | Yellow orange |
| Code | Term | Description |
|---|---|---|
| 1 | White | |
| 2 | Yellowish white to off white | |
| 3 | Yellow | |
| 4 | Orange | |
| 5 | Light purple | |
| 6 | Purple | |
| 7 | Purple with white | |
| 8 | White with purple | |
| 9 | Yellow with purple | |
| 10 | White with pink | |
| 11 | Outer purple/inner yellowish | |
| 12 | White with yellow | |
| 13 | Yellow orange |
| Code | Term | Description |
|---|---|---|
| 1 | White | |
| 2 | Yellowish white to off white | |
| 3 | Yellow | |
| 4 | Orange | |
| 5 | Light purple | |
| 6 | Purple | |
| 7 | Purple with white | |
| 8 | White with purple | |
| 9 | Yellow with purple | |
| 10 | White with pink | |
| 11 | Outer purple/inner yellowish | |
| 12 | White with yellow | |
| 13 | Yellow orange |
| Code | Term | Description |
|---|---|---|
| 0 | No | |
| 1 | Yes |
| Code | Term | Description |
|---|---|---|
| 1 | Smooth | |
| 2 | Grainy | |
| 3 | Very grainy |
| Code | Term | Description |
|---|---|---|
| 1 | <1min | |
| 2 | 1-2min | |
| 3 | >2min |
| Code | Term | Description |
|---|---|---|
| 1 | Grey | |
| 2 | Purple | |
| 3 | Orange | |
| 4 | Brown | |
| 5 | Yellow | |
| 6 | Yellow to Brown | |
| 7 | White | |
| 8 | Pink |