Table 4.
Pearson correlation coefficients among B tolerance metrics measured in a pot experiment (Pot exp.) and two hydroponic experiments (Hydro. exp. 1 & 2) and B tolerance rankings from DEDJTR data and breeders’ advice, as described in the methods
| Hydro. exp. 1 | Hydro. exp. 2 | Pot exp. | |||||
|---|---|---|---|---|---|---|---|
| Imm. PGS | Mat. | Imm. PGS | Mat. | Score | Shoot BM | Root BM | |
| Hydro. exp. 1 | |||||||
| Imm. PGS | – | ||||||
| Mat. | 0.98*** | – | |||||
| Hydro. exp. 2 | |||||||
| Imm. PGS | 0.81* | 0.82* | – | ||||
| Mat. | 0.89** | 0.90** | 0.94*** | – | |||
| Pot exp. | |||||||
| Score | 0.93*** | 0.94*** | 0.70* | 0.66+ | – | ||
| Shoot BM | 0.50 | 0.54 | 0.25 | 0.20 | 0.76* | – | |
| Root BM | 0.44 | 0.41 | 0.47 | 0.40 | 0.62+ | 0.74* | – |
| DEDJTR data | 0.87* | 0.84* | 0.68+ | 0.65 | 0.50 | 0.21 | 0.51 |
Pot exp. metrics include leaf symptom scores (Score) and shoot and root biomass (BM) reduction relative to a control treatment. Hydroponic metrics were leaf symptom scores on plants grown from immature precociously germinated seed (Imm. PGS) or mature (Mat.) seed. DEDJTR data were converted to numerical categories as described in the methods. Symbols after correlation coefficients indicate significance levels (+ P ≤ 0.1; * P ≤ 0.05; ** P ≤ 0.01; *** P ≤ 0.001)