Table 4 The analysis of variances for the RSA-related and associated traits under low-nitrogen stress.

From: Unravelling root system architecture plasticity in response to abiotic stresses in maize

Source

DF

Mean Sum of Square

TRL

SA

AD

RV

TN

Genotype

19

664023.00***

13891.00***

0.009***

2.24***

828650.00***

Block

2

2650.00

156.00

0.003*

0.06

73815.00

Residuals

38

24265.00

313.00

0.001

0.07

40217.00

Total

59

690938.00

14360.00

0.013

2.37

942682.00

Source

DF

Mean Sum of Square

RL

SL

SFW

RFW

SDW

Genotype

19

295.78***

9.27***

6.85***

3.92***

0.017***

Block

2

32.45

5.73*

2.31*

1.27

0.006*

Residuals

38

30.69

1.42

0.68

0.43

0.002

Total

59

358.92

16.41

9.84

5.63

0.025

Source

DF

Mean Sum of Square

RDW

SPADBS

SPADLP

SRL

RLDp5

Genotype

19

0.010***

23.23***

11.63***

16155567.00***

0.011***

Block

2

0.005*

5.61

1.64

1005134.00

0.004

Residuals

38

0.001

6.23

1.20

1956908.00

0.002

Total

59

0.016

35.07

14.47

19117609.00

0.018

  1. Note: DF-degrees of freedom, TRL-total root length (cm), SA-surface area (cm2, AD-average diameter (mm), RV-root volume (cm3, TN-total number of roots (N), RL-root length (cm), SL-shoot length (cm), SFW-shoot fresh weight (g), RFW-Root fresh weight (g), SDW-shoot dry weight (g), RDW-root dry weight (g), SPADBS-SPAD value before stress imposition, SPADLP-SPAD value at 15th day after stress imposition, SRL-specific root length, RLDp5-The relative root length distribution of roots having a diameter < 0.5 mm. * and *** represent significant differences at the 0.05 and 0.001 probability levels, respectively.
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