Table 4

Combined analysis of variance (mean squares) for the effect of treatments on density and biomass of weeds, and yield indices of black cumin.

S.O.V df Weed density Weed dry mass 1000-grain weight Seed oil content percentage Oil yield
Year 1 184.0 ns 3650.2 ns 0.0003 ns 0.0030 ns 0.24ns
Block (Year) 6 552.5 * 1733.3 ns 0.0057 ns 0.0008 ** 466.24**
Treatments 5 6365.6** 147269.5** 0.0817** 14.720** 1311.34**
Year×Treat. 5 37.2 ns 431.6 ns 0.0005 ns 0.0004* 24.10ns
Error 30 217.9 2292.5 0.0028 0.0001 117.46

ns, * and **: non –significant, and significant at P ≤0.05 and P ≤0.01, respectively.

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