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Table 1 ANOVA for various eco-physiological traits measured in genotype 592 and 520 grown in a growth chamber (three blocks) and exposed to two experimental conditions: well-watered or drought

From: Genome-wide transcriptional and physiological responses to drought stress in leaves and roots of two willow genotypes

  

Source of variation

Traits

 

Block

Genotype (G)

Treatment (T)

G x T

Error

  

(d.f. = 2)

(d.f. = 1)

(d.f. = 1)

(d.f. = 1)

(d.f. = 52)

Total plant DWa (g)

MS

0.048

0.055

20.355

0.315

0.059

 

p-value

0.452

0.338

<0.001

0.025

 

Total leaf N pool (g)

MS

0.020

0.024

0.972

0.034

0.005

 

p-value

0.030

0.038

<0.001

0.014

 

RGRa (g g−1 wk−1)

MS

0.003

0.006

1.188

0.018

0.003

 

p-value

0.456

0.184

<0.001

0.025

 

Number of syll. shoots

MS

50

2269

1050

874

46

 

p-value

0.342

<0.001

<0.001

<0.001

 

Leaf DWa (g)

MS

0.343

0.857

31.523

0.057

0.302

 

p-value

0.328

0.098

<0.001

0.665

 

LW/W (%)

MS

108

2640

399

1465

220

 

p-value

0.614

<0.001

0.183

0.013

 

LARa (m2 g−1)

MS

2.87

97.30

13.57

1.39

0.92

 

p-value

0.052

<0.001

<0.001

0.223

 

SLAa (m2 kg−1)

MS

58.0

42.2

390.8

10.7

12.7

 

p-value

0.015

0.074

<0.001

0.363

 

Shoot DWa (g)

MS

0.018

0.077

22.310

0.042

0.067

 

p-value

0.768

0.289

<0.001

0.434

 

SW/W (%)

MS

441

1410

15

2190

223

 

p-value

0.149

0.015

0.787

0.003

 

LAPa (g m−2 wk−1)

MS

68

728

8080

5

40

 

p-value

0.191

<0.001

<0.001

0.729

 

SPADa (rel. units)

MS

3.6

844.1

46.9

2.3

8.1

 

p-value

0.645

<0.001

0.020

0.596

 

Root DWa (g)

MS

0.476

0.321

15.384

0.405

0.126

 

p-value

0.029

0.116

≤0.001

0.079

 

RW/W (%)

MS

2490

31

4997

643

114

 

p-value

<0.001

0.606

<0.001

0.021

 

No. of leaves

MS

546

2640

36803

1995

231

 

p-value

0.103

0.001

<0.001

0.005

 

Leaf temperature (°C)

MS

9.56

0.19

13.56

1.26

0.70

 

p-value

<0.001

0.607

<0.001

0.185

 

RWCa (%)

MS

105.1

86.7

818.2

132.0

199.3

 

p-value

0.595

0.513

0.048

0.420

 

Leaf Δ13C (‰)

MS

1.7

40.6

138.8

14.5

1.1

 

p-value

0.224

<0.001

<0.001

0.001

 

Leaf Δ18O (‰)

MS

0.16

0.12

59.12

5.94

0.27

 

p-value

0.555

0.503

<0.001

<0.001

 

Leaf Δ13C/Δ18O

MS

0.002

0.035

0.242

0.023

0.001

 

p-value

0.190

<0.001

<0.001

<0.001

 
  1. The ANOVA model included the main effects Block, Genotype and Treatment and the Genotype x Treatment interaction; Block was treated as random factor, and Genotype and Treatment were treated as fixed factors. MS = mean square. d.f. = degrees of freedom
  2. aTrait abbreviations: DW dry weight (biomass), RGR relative growth rate, LAR leaf area ratio, LAP leaf area productivity, SLA specific leaf area, SPAD values indicate leaf chlorophyll content (here assessed two days before the final harvest), RWC relative water content P-values ≤ 0.05 are shown in bold