Table II.
Distribution of 14C in the treated leaf and tissues above the treated leaf of cv Excel and HCN27 plants 72 h after application of d,l-[14C]glufosinate or acetyl-l-[14C]glufosinate
| Plant Part |
d,l-[14C]Glufosinatea
|
Acetyl-l-[14C]Glufosinatea
|
||
|---|---|---|---|---|
| cv Excel | HCN27 | cv Excel | HCN27 | |
| % of applied | ||||
| Leaf wash | 13.0 (3.0) | 13.6 (2.5) | 2.8 (1.6) | 3.7 (1.5) |
| Treated leaf | 58.4 (2.4) | 37.5 (1.3) | 54.2 (3.5) | 43.9 (2.4) |
| Leaves above the treated leaf | 2.5 (0.5) | 5.4 (0.4) | 7.3 (0.6) | 5.9 (0.5) |
| Stem above treated leaf | 3.1 (0.6) | 10.9 (1.7) | 10.7 (1.1) | 12.3 (1.0) |
| Floral buds and flowers | 1.2 (0.2) | 3.0 (0.4) | 3.1 (0.5) | 3.3 (0.6) |
The plants were treated at the green-bud stage, i.e. when flower buds were first apparent at the apex of the main flowering stem. Foliar absorption ranged from 87% to 97% of the applied 14C. Not all plant parts were harvested; therefore, total recovery of 14C was not determined. Values are means, with se shown in parentheses.