Table II.
Morphology of, and root GA levels in, LE, le-1, and le-2 seedlings
| Characteristic | LE (205+) | le-1 (205−) | le-1 (Dippes gelbe Viktoria) | le-2 (M66A) |
|---|---|---|---|---|
| Shoot height (mm) | 184 ± 4 | 63 ± 2 | 114 ± 3 | 57 ± 1 |
| Taproot length (mm) | 258 ± 4 | 252 ± 5 | 283 ± 4 | 283 ± 5 |
| Length of the six longest lateral roots (mm) | 128 ± 5 | 124 ± 7 | 94 ± 4 | 91 ± 3 |
| GA level (pg g−1 fresh wt) | ||||
| GA20 | 48 ± 25 | 34 ± 34 | 344 ± 17 | 360 ± 3 |
| GA1 | 483 ± 2 | 448 ± 84 | 179 ± 18 | 176 ± 1 |
There were two pairs of isolines: LE and le-1 (205+/205−), and le-1 and le-2 (Dippes gelbe Viktoria/M66A). Morphological data are means ± se of 12 replicates; plants were grown in a growth chamber at 21°C. GAs were quantified from 40-mm taproot tips and plants were grown in a heated greenhouse. GA levels are shown as means ± se of two replicate harvests. All plants were 12 d old.