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Table 2 Average survival, DBH, and height (H) comparison of the eight cultivars analysed in 5- and 6-year cycles

From: Biomass productivity of selected poplar (Populus spp.) cultivars in short rotations in northern Poland§

Cultivar

After 5 years

After 6 years

Survival rate (%)

DBH (mm)

Arithmetic mean

±SE

H (m)

Arithmetic mean

±SE

Survival rate (%)

DBH (mm)

Arithmetic mean

±SE

H (m)

Arithmetic mean

±SE

‘AF-8’

89

62.6e

1.2

7.55d

0.09

89

74.6e

1.4

8.40g

0.09

‘AF-2’

88

93.7bc

1.8

9.39b

0.12

87

110.5bc

1.8

10.17e

0.09

‘Albelo’

98

72.0d

1.1

8.26c

0.09

98

86.2d

1.1

9.61f

0.07

‘Degrosso’

99

98.1b

1.6

9.63b

0.10

99

114.9b

1.5

10.17de

0.08

‘Polargo’

99

90.1c

1.3

9.36b

0.09

99

105.4c

1.4

10.70c

0.09

‘Koster’

97

95.8bc

1.8

9.56b

0.12

97

111.1bc

1.9

10.54cd

0.11

‘Fritzi Pauley’

96

105.6a

1.5

10.18a

0.10

96

124.1a

1.6

13.16a

0.08

‘NE-42’

99

110.7a

1.5

10.44a

0.09

99

124.9a

1.4

12.04b

0.11

Quadratic mean (global)

95.3

 

9.48

  

110.5

 

10.80

 

Arithmetic mean (global)

91.4

 

9.32

  

106.8

 

10.63

 
  1. The same superscript letters indicate statistically homogenous groups (Tukey’s HSD test, α = 0.05)