Table 1.
Coefficients of correlation (r) between plant productivity (spike DM and total DM per plant) and concentrations of grain protein (GPC) and mineral nutrients in a collection of 73 wild emmer wheat accessions tested across two years
| Spike DM | Total DM | GPC | Zn | Fe | Cu | Mn | Ca | Mg | K | P | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total DM | 0.94*** | ||||||||||
| 0.96*** | |||||||||||
| GPC | 0·09 | 0·09 | |||||||||
| 0·28* | 0·23 | ||||||||||
| Zn | 0·28* | 0·31** | 0·41*** | ||||||||
| 0·25* | 0·29* | 0·41*** | |||||||||
| Fe | 0·16 | 0·12 | 0·38** | 0·67*** | |||||||
| 0·55*** | 0·49*** | 0·61*** | 0·40*** | ||||||||
| Cu | 0·14 | 0·19 | 0·50*** | 0·42*** | 0·08 | ||||||
| 0·13 | 0·13 | 0·29* | 0·59*** | 0·43*** | |||||||
| Mn | 0·24* | 0·30** | 0·45*** | 0·45*** | 0·37** | 0·44*** | |||||
| 0·44*** | 0·46*** | 0·45*** | 0·52*** | 0·52*** | 0·35** | ||||||
| Ca | −0·16 | −0·05 | −0·01 | 0·36** | 0·29* | 0·05 | 0·14 | ||||
| −0·05 | −0·05 | 0·07 | 0·13 | 0·09 | 0·06 | −0·09 | |||||
| Mg | −0·07 | −0·05 | 0·59*** | 0·35** | 0·37** | 0·25* | 0·27* | 0·30** | |||
| −0·01 | 0·00 | 0·65*** | 0·25* | 0·40*** | 0·16 | 0·17 | 0·39*** | ||||
| K | 0·00 | −0·01 | 0·19 | 0·27* | 0·34** | 0·04 | 0·09 | 0·22 | 0·45*** | ||
| −0·23 | −0·24* | 0·05 | −0·08 | −0·07 | −0·12 | −0·16 | 0·24* | 0·34** | |||
| P | −0·10 | −0·09 | 0·54*** | 0·43*** | 0·44*** | 0·13 | 0·23 | 0·33** | 0·80*** | 0·58*** | |
| 0·00 | 0·02 | 0·50*** | 0·29* | 0·33** | 0·17 | 0·24* | 0·39*** | 0·78*** | 0·60*** | ||
| S | −0·01 | 0·00 | 0·66*** | 0·45*** | 0·41*** | 0·19 | 0·17 | 0·41*** | 0·74*** | 0·33** | 0·75*** |
| 0·17 | 0·20 | 0·64*** | 0·46*** | 0·49*** | 0·36** | 0·30** | 0·40*** | 0·66*** | 0·26* | 0·67*** |
The upper and lower numbers refer to the 2007 and 2008 experiments, respectively.
Asterisks indicate significance at *P < 0·05, **P < 0·01 and ***P < 0·001.