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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
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