Fig. 5

Relationships between Tetracladium spp. OTU mean relative abundance with variety and rotation. A The mean relative abundance of OTU 19 and 1088 in different OSR varieties in the roots. Error bars represent ± standard error of the mean. B Linear regression line fitted between OTU relative abundance and rotation length across the three compartments with significance values. OTU relative abundances and yield are normalised in a way to accommodate for fields that never had oilseed rape planted before. These virgin fields are represented as 0 while the shortest rotation length is represented by 0.5. The shaded region represents the 95% confidence limits for the estimated prediction