Table 2. Means and standard deviations (in parentheses) of above ground biomass (B) during the main growth period and grain yield of winter wheat, grown in monoculture (Mono) and with various preceding crops (Flax, Rape, Ley) in two years (2013 and 2014 growing seasons) in a long-term field experiment.
| Trait* | Year 1 |
Year 2 |
|||
|---|---|---|---|---|---|
| Mono | Flax | Mono | Rape | Ley | |
| B at BBCH 31 (g m−2) | 24.4 (12.6) | 25.2 (5.8) | 38.1 (13.8) | 37.0 (3.3) | 38.8 (10.0) |
| B at BBCH 61 (g m−2) | 144 (53) | 276 (17) | 919 (55) | 899 (50) | 1008 (168) |
| RG (week−1) | 0.26 (0.13) | 0.35 (0.04) | 0.35 (0.04) | 0.35 (0.01) | 0.36 (0.04) |
| Grain yield (g m−2) | 323 (113) | 299 (117) | 656 (72) | 684 (25) | 721 (84) |
RG relative growth rate between start of stem elongation (BBCH 31) and anthesis (BBCH 61).
*P values for significant differences between preceding crops and years were mostly <0.05, except for <0.01 in the cases of treatment differences for B at BBCH 61 (year 1), and year differences (only data from monoculture considered) for grain yield and B at BBCH 61.