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Table 3 Parameter estimates and p-values for ordinary least-squares regressions for all 75 genotypes each year of growth

From: Early selection of novel triploid hybrids of shrub willow with improved biomass yield relative to diploids

   Coefficients   P-value
Data set a b c d Height Area Specific gravity
1st year post-coppice −6.425 1.111 0.554 1.013 <0.0001 <0.0001 0.007
2nd year post-coppice −12.701 2.083 0.430 1.332 <0.0001 <0.0001 <0.0001
3rd year post-coppice −10.670 1.659 0.544 0.560 <0.0001 <0.0001 0.137
  1. a is a constant; b, c, and d are slopes of the parameters height, area, and diameter, respectively.