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Table 4 Nodule dry weight of common bean var. Dursitu obtained from selected areas of eastern Ethiopia with and without Rhizobium leguminosarum. bv. vicieae inoculation

From: Rhizobium leguminosarum bv. viciae sp. inoculation improves the agronomic efficiency of N of common bean (Phaseolus vulgaris L.)

Treatments

Nodule dry weight (g/plant)

Babillae

Fedis

Haramaya

Hirna

Non inoculated

Inoculated

Non inoculated

Inoculated

Non inoculated

Inoculated

Non inoculated

Inoculated

Control

0.1217ab

0.3063ab

0.1920b

0.2533a

0.2183b

0.6185ab

0.6630a

0.8182a

20 kg N ha−1

0.1880a

0.3900a

0.4097a

0.2010a

0.3873a

0.7446a

0.2926b

0.6776ab

40 kg N ha−1

0.1263ab

0.3207a

0.3963a

0.0897b

0.1669bc

0.4334bc

0.3262b

0.4610bc

60 kg N ha−1

0.0437bc

0.1530bc

0.1727b

0.0516b

0.1259bcd

0.2676 cd

0.1341c

0.4052c

80 kg N ha−1

0.1033abc

0.0287c

0.1610b

0.0340b

0.0757 cd

0.2064d

0.1636c

0.2766c

100 kg N ha−1

0.0193c

0.0210c

0.0160c

0.0279b

0.0418d

0.0827d

0.1502c

0.3421c

Mean

0.1004

0.2033

0.2246

0.1096

0.1693

0.3922

0.2883

0.4968

F-value

8.53***

23.96***

31.90***

24.54***

29.82***

40.79***

93.16***

13.93***

LSD

0.0992

0.1537

0.1276

0.0911

0.1078

0.1890

0.0985

0.2658

CV (%)

36.03

27.58

20.71

30.32

23.22

17.57

12.46

19.51

  1. Means in the same column followed by the same letter are not significantly different at the 5% probability level by Tukey’s test.
  2. NS non significant.
  3. * Significant at 0.05; ** significant at 0.01; *** significant at 0.001.