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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.