| Code | Definition | Number of Accessions |
| 1 | oval - oval shape to bolls. Widest point tends to the middle of the boll | 2598 |
| 2 | round - round shape to the bolls. Not necessarily perfectly round but length is close to width | 2334 |
| 3 | cone - bolls are wider at the base and overall shape tapers to the tip. Common in G. barbadense | 346 |
| 4 | cone oval - bolls show tapering from middle to the tip. The base and middle are comparable in length | 2399 |
| 9 | plot is segregating for this trait and a single score is not an accurate description or the variation is outside of the rating scale | 64 |