Table 1 Mean squares from the three-way analysis of variance for the competitive ratio of susceptible (S) and herbicide-resistant blackgrass (R) calculated for the relative plant biomass (BCRb) and relative grain number (BCRgn).

From: Intra- and interspecies competition of blackgrass and wheat in the context of herbicidal resistance and environmental conditions in Poland

Source of variation

df

BCRb

BCRgn

Year

1

0.01

0.91**

Site

6

0.33***

0.81***

Year × site

6

0.27***

0.72***

Residual

60

0.06

0.13

  1. df degrees of freedom.
  2. *P < 0.05; **P < 0.01; ***P < 0.001.
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