Table V.
Root, shoot, and nodule DWs, nodule numbers per plant, and root and shoot DW and root levels of IAA and GA1 of 30-d-old graft combinations of LKB and lkb mutants.
Plants were grafted 6 d after sowing and inoculated with R. leguminosarum at 10 d. Results are means ± se (n = 8) for physiological traits and means ± se of two replicates, each consisting of six root systems, for hormone analysis. Values for each trait followed by an * are significantly different from the LKB/LKB graft combination at the 0.01 level.
| Graft Type
|
DW
|
Number of Nodules
|
Hormone Level
|
||||||
|---|---|---|---|---|---|---|---|---|---|
| Shoot | Root | Nodule Total | Nodule Average | Per Plant | Per Milligram Shoot DW | Per Milligram Root DW | IAA | GA1 | |
| mg | mg | mg | mg | ng g−1fresh weight | ng g−1fresh weight | ||||
| LKB/LKB | 410 ± 35 | 130 ± 15 | 65 ± 9.5 | 0.57 ± 0.085 | 136 ± 26 | 0.35 ± 0.03 | 1.09 ± 0.20 | 3.93 ± 0.69 | 0.022 ± 0.0005 |
| LKB/lkb | 420 ± 25 | 180 ± 23 | 75 ± 11.5 | 0.83 ± 0.252 | 129 ± 26 | 0.34 ± 0.09 | 0.94 ± 0.36 | 3.23 ± 0.32 | 0.020 ± 0.0020 |
| lkb/LKB | 310 ± 39 | 120 ± 12 | 48 ± 9.5 | 0.98 ± 0.239 | 56 ± 5* | 0.20 ± 0.03 | 0.48 ± 0.06* | 3.08 ± 0.06 | 0.020 ± 0.0025 |
| lkb/lkb | 430 ± 43 | 200 ± 15* | 69 ± 10.6 | 1.58 ± 0.236* | 46 ± 7* | 0.11 ± 0.01* | 0.23 ± 0.03* | 3.16 ± 0.19 | 0.024 ± 0.0005 |