Petiole canal leaf III
Leaf III is the third leaf counted from the last leaf (leaf I) produced before bunch emergence. Cut the petiole half way between the pseudostem and the leaf blade and examine the cross section. (See Figs. 4 and 6)
| Code | Term | Description |
|---|---|---|
| 1 | Open with margins spreading | |
| 2 | Wide with erect margins | |
| 3 | Straight with erect margins | |
| 4 | Margins curved inward | |
| 5 | Margins overlapping |