Table IV. Morphometric analysis of d5 treated with GA3.
| Parameter | Mock |
+GA3 |
||
|---|---|---|---|---|
| +/d5 | d5/d5 | +/d5 | d5/d5 | |
| n | 17 | 15 | 16 | 15 |
| Plant heighta | 242.6 ± 28.9 a | 38.8 ± 12.4 b | 301.9 ± 40.9 c | 313.3 ± 56.6 c |
| Days to tassela | 58.4 ± 3.6 a | 71.7 ± 6.7 b | 55.5 ± 6.9 a | 61.6 ± 3.8 c |
| Tillers per planta | 0 ± 0 a | 0.9 ± 0.9 b | 0 ± 0 a,c | 0.2 ± 0.4 c |
| Plants with tassel seedsb | 0 (0%) a | 0 (0%) a | 16 (100%) b | 15 (100%) b |
| Plants with anthers in ear floretsb | 0 (0%) a | 15 (100%) b | 0 (0%) a | 15 (100%) b |
| Tassel branchesa | 21.8 ± 6.1 a | 7.9 ± 5.7 b,c | 16.3 ± 12.0 a,c | 4.6 ± 3.2 b |
| Total nodesa | 14.1 ± 1.1 a | 14.5 ± 1.8 a | 14.3 ± 1.1 a | 13.5 ± 1.0 a |
| Node of top eara | 9.1 ± 0.6 a | 8.7 ± 1.0 a | 9.4 ± 0.7 a | 9.1 ± 1.0 a |
| Tassel lengtha | 61.2 ± 5.1 a | 29.7 ± 3.5 b | 56.3 ± 16.6 a,c | 46.1 ± 11.9 c |
| Angle of upper leafa | 47.1 ± 17.1 a | 47.0 ± 21.1 a | 48.4 ± 13.1 a | 50.7 ± 22.2 a |
| Length of upper leafa | 45.4 ± 5.5 a | 28.4 ± 9.2 b | 49.8 ± 10.8 a | 50.3 ± 10.9 a |
| Width of upper leafa | 5.7 ± 0.6 a | 7.3 ± 1.6 b | 4.4 ± 1.6 c | 3.6 ± 0.8 c |
| Angle of lower leafa | 47.9 ± 8.8 a | 59.3 ± 11.6 b | 47.8 ± 13.3 ab | 55.7 ± 11.0 a,b |
| Length of lower leafa | 105.9 ± 7.6 a | 50.7 ± 7.7 b | 100.0 ± 10.3 a | 92.5 ± 7.7 a |
| Width of lower leafa | 7.1 ± 0.7 a | 9.6 ± 1.2 b | 5.1 ± 1.2 a | 3.8 ± 0.7 c |
a
Data are presented as means with sd. Lowercase letters indicate connecting letter report as determined by ANOVA with posthoc analysis using the Holm-Sidak algorithm with P < 0.05.
b
Number of plants with tassel seeds or anthers in ear florets, with the percentage of plants in parentheses. Lowercase letters indicate connecting letter report as determined by Fisher’s exact test with P < 0.01.