Table 4. GENSTAT output for data from Table 2. Estimates of regression coefficient Estimate SE t Constant (site I block 1) 1672 257 6.51 Site 1 block 2 0 296 0.00 Site 2 block 1 500 296 1.69 Site 2 block 2 117 296 0.39 Site 3 block 1 629 270 2.33 Site 3 block 2 540 270 2.00 A 851 159 5.36 B 121 159 0.76 C 211 159 1.33 D 541 159 3.41 Analysis of Variance Summary df SS MS Regression 9 14266827 1585203 Residual 32 8382935 261967 Total 41 22649762