Table 1. Pearson’s correlation coefficient analysis of traits measured from the RIL population.
| Trait | Shelf life | AO | Phenolics | CHL | CAR | Q-3MG-7Gc | K-3MG | CQA2 | CQA3 | 5-CoQA2 |
|---|---|---|---|---|---|---|---|---|---|---|
| Shelf life | 1 | |||||||||
| AO | 0.304* | 1 | ||||||||
| Phenolics | −0.115 | 0.199 | 1 | |||||||
| CHL | −0.254 | −0.414** | −0.298 | 1 | ||||||
| CAR | −0.275* | −0.402** | −0.277 | 0.987 | 1 | |||||
| Q-3MG-7Gc | 0.417* | 0.434* | 0.309 | −0.181 | −0.181 | 1 | ||||
| K-3MG | 0.433* | 0.409* | 0.042 | 0 | 0.002 | 0.648*** | 1 | |||
| CQA2 | 0.184 | 0.461** | 0.157 | −0.062 | −0.062 | 0.505** | 0.209 | 1 | ||
| CQA3 | 0.264 | 0.439* | 0.354 | −0.14 | −0.14 | 0.634*** | 0.396* | 0.911*** | 1 | |
| 5-CoQA2 | 0.005 | 0.384* | 0.471** | −0.162 | −0.165 | 0.504** | 0.475** | 0.416* | 0.49** | 1 |
Correlation of mean trait values measured in the glasshouse trial, with shelf life data taken from previous investigations on the same RIL subset, taken from Zhang et al. (ref. 32). ***P < 0.001; **P < 0.01 and *P < 0.05 levels. AO, antioxidant potential; CHL, total chlorophyll content; CAR, total carotenoid content. Correlations for all traits measured can be seen in Supplementary Table S3.