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Table 6 Additive main effect and multiplicative interaction (AMMI) analysis of variance for all the nodulation traits measured during seasons 2015A and 2015B

From: Genotype by environment effects on promiscuous nodulation in soybean (Glycine max L. Merrill)

Source

df

NN

NE

NFW

NDW

s.s.

m.s.

Explained (%)

s.s.

m.s.

Explained (%)

s.s.

m.s.

Explained (%)

s.s.

m.s.

Explained (%)

Total

224

50,829

  

71,425

  

42.571

  

2.1372

  

Genotypes

11

3071

279.2***

6.04

2787

253.3ns

3.90

1.945

0.1768***

4.57

0.0888

0.008***

4.15

Environments

11

39,346

3576.9***

77.41

9272

842.9*

12.98

33.721

3.0656***

79.21

1.7907

0.163***

83.79

Interactions

121

6320

52.2***

12.43

45,745

378.1***

64.05

5.189

0.0429***

12.19

0.1925

0.002***

9.01

 IPCA 1

21

2402

114.4***

56.80

22,441

1068.6***

69.86

2.123

0.1011***

61.13

0.0918

0.004***

72.11

 IPCA 2

19

1827

96.2***

43.20

9683

509.6***

30.14

1.35

0.071***

38.87

0.0355

0.002**

27.89

 Residuals

81

2092

25.8

 

13,621

168.2

 

1.716

0.0212

 

0.0652

0.0008

 
  1. df degree of freedom, s.s. sum of squares, m.s. mean square, NN number of nodules, NE percentage of effective nodules, NFW fresh weight of nodules, NDW dry weight of nodules
  2. * Significant at 0.05
  3. ** Significant at 0.01
  4. *** Significant at 0.001