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Within-plant mobility of foliar-applied 10B
| Line | 10B Excess in Top Leaf | 10B Excess in Seed |
|---|---|---|
| S11 | 56.4 ± 9.4 | 156 ± 25 |
| SR1 | 1.4 ± 1.1 | 0.3 ± 1.1 |
| A4 | 3.5 ± 1.2 | −1.2 ± 1.5 |
Isotopically enriched boric acid (99.43% 10B:0.57% 11B) was applied to three mature leaves of each tobacco line. B mobility was determined as a percentage of 10B atom excess (ratio of 10B/11B in treatment minus ratio of 10B/11B in control × 100). Experimental details are as described in Table I.
