Table 2.
Pearson correlation between physiological parameters, productive parameters, disease incidence and severity of Safira and BRS Tangará wheat varieties in Pato Branco, Paraná, Brazil.
| P(1) | Pn | Ci | gs | E | WUE | CE | SM | LM | NSP | GPS | MTG | GY |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IPM | −0.81* | 0.78* | −0.68* | −0.64* | −0.78* | −0.82* | 0.07 | 0.00 | 0.23 | 0.33* | −0.61* | −0.45* |
| SPM | −0.66* | 0.68* | −0.57* | −0.42* | −0.70* | −0.69* | 0.02 | −0.08 | 0.02 | 0.18* | −0.46* | −0.37* |
| ILR | −0.84* | 0.89* | −0.59* | −0.54* | −0.86* | −0.87* | 0.04 | −0.02 | 0.26 | 0.42* | −0.70* | −0.17* |
| SLR | −0.51* | 0.42* | −0.50* | −0.50* | −0.46* | −0.49* | −0.33* | −0.35* | −0.13 | 0.24* | −0.50* | −0.29* |
| IYS | −0.56* | 0.63* | −0.34* | −0.24* | −0.63* | −0.59* | 0.12 | 0.03 | 0.09 | 0.20* | −0.42* | −0.10 |
| SYS | −0.13* | 0.26* | 0.06 | 0.17* | −0.29* | −0.17* | 0.07 | 0.08 | −0.12 | 0.38* | −0.30* | −0.12* |
| IBS | −0.24* | 0.36* | −0.13* | −0.15* | −0.23* | −0.28* | −0.02 | −0.10 | −0.10 | 0.05 | −0.26* | −0.09 |
| SBS | −0.14* | 0.19* | −0.06 | −0.17* | −0.11 | −0.16* | −0.04 | −0.12* | −0.13 | 0.42* | −0.42* | −0.42* |
| Pn | −0.91* | 0.89* | 0.83* | 0.95* | 0.99* | 0.19 | 0.27* | −0.07 | −0.33* | 0.80* | 0.44* | |
| Ci | −0.66* | −0.61* | −0.94* | −0.95* | −0.05 | −0.13* | 0.14 | 0.37* | −0.75* | −0.24* | ||
| gs | 0.93* | 0.76* | 0.84* | 0.35 | 0.40* | 0.16 | −0.11 | 0.63* | 0.62* | |||
| E | 0.64* | 0.78* | 0.42* | 0.52* | 0.13 | −0.09 | 0.64* | 0.70* | ||||
| WUE | 0.96* | 0.09 | 0.13 | −0.13 | −0.42* | 0.78* | 0.33* | |||||
| CE | 0.15 | 0.23* | −0.09 | −0.35* | 0.80* | 0.39* | ||||||
| SM | 0.91* | 0.70* | 0.45 | 0.21 | 0.45* | |||||||
| LM | 0.65* | 0.42 | 0.30 | 0.47* | ||||||||
| NSP | 0.41* | 0.00 | 0.23 | |||||||||
| GPS | −0.54* | −0.14* | ||||||||||
| MTG | 0.44* |
*Significance of the Pearson correlation coefficient was at p < 0.05. (1) P - parameters; IPM and SPM - incidence and severity of powdery mildew, respectively; ILR and SLR - incidence and severity of leaf rust, respectively; IYS and SYS - incidence and severity of yellow spot, respectively; IBS and SBS - incidence and severity of brown spot, respectively; Pn - CO2 net assimilation rate; WUE - water use efficiency; gs - stomatal conductance; Ci - intercellular CO2 concentration; E - transpiration; CE - carboxylation efficiency (Pn/Ci); SM - steam mass; LM - leaf mass; NSP - number of spikes; GPS - grains per spike; MTG - mass of thousand grains; GY - grain yield.