Environmental Systems Research

Table 3 Nodule number per plant 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 number per plant
	Babillae		Fedis		Haramaya		Hirna
	Non inoculated	Inoculated	Non inoculated	Inoculated	Non inoculated	Inoculated	Non inoculated	Inoculated
Control	28.33b	82.33c	71.67bc	90.67a	109.33b	198.33a	216.67a	175.00a
20 kg N ha⁻¹	88.67a	161.67a	146.67a	64.33ab	282.00a	190.00ab	130.00bc	167.33ab
40 kg N ha⁻¹	65.00a	124.33b	106..67ab	46.67bc	109.33b	141.67abc	190.00ab	173.33a
60 kg N ha⁻¹	18.67b	26.00d	45.00 cd	27.33c	84.33b	116.33bc	128.33bc	106.67c
80 kg N ha⁻¹	31.00b	17.33d	45.00 cd	20.00c	70.33b	91.33 cd	94.67c	108.33bc
100 kg N ha⁻¹	22.33b	19.67d	20.00d	22.33c	46.00b	35.33d	90.00c	91.00c
Mean	42.33	71.89	72.50	45.22	116.89	128.83	141.61	136.94
F-value	21.57***	113.76***	29.92***	23.69***	17.24***	14.17***	9.02***	9.59***
LSD	28.73	27.26	40.62	27.30	96.56	77.88	81.10	59.59
CV (%)	24.74	13.83	20.43	22.10	30.12	22.04	20.88	15.87

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

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