Figure 1

Mean take-all disease severity on the roots in the spring (a) and summer (b) and grain yield (c) of the eight winter wheat cultivars sown as a second wheat crop after the low TAB cultivar Cadenza and high TAB cultivar Hereward were sown in the first year of wheat cropping. Error bars in panels (a) and (c) show the standard error of the difference between the means for comparisons in each year. In panel (b) the back-transformed means on the take-all index scale are shown (Logit of the take-all index: 2010, Cadenza = −1.432, Hereward = −0.873, SED = 0.183; 2011, Cadenza = −1.151, Hereward = −0.931, SED = 0.094; 2012, Cadenza = 0.550, Hereward = 1.578, SED = 0.114; 2013, Cadenza = −0.823, Hereward = −0.232, SED = 0.054). *Significantly different from zero at the 0.05 level of probability, **Significantly different from zero at the 0.01 level of probability, ***Significantly different from zero at the 0.001 level of probability.