. 2023 Sep 26;14:1187250. doi: 10.3389/fmicb.2023.1187250

Table 2.

Analysis of variance showing the effect of nitrogen-fixation bacteria strains on nodulation and nitrogen fixation of BGN genotypes in both seasons (Ibadan and Ikenne).

Source	DF	Nodule number	Nodule weight (g)	Nitrogen fixed (kg/ha)
Genotypes	9	629.24**	19.55**	217.84*
strains	5	97.38^**	3.59^ns	15336.58**
season	1	204.68*	797.11**	5548.10**
location	1	22.63^ns	25.07**	823.69**
Genotypes*strains	45	40.51^ns	1.89^ns	126.58^ns
Genotypes*season	9	168.21**	18.14**	287.71**
Genotypes*location	9	72.31^ns	3.42^ns	151.19^ns
strains*season	5	52.73^ns	2.51**	348.06**
season*location	1	1393.73**	79.67**	6.19^ns
strains*location	5	66.09^ns	1.66^ns	156.95^ns
Genotypestrainlocat*season	131	32.38^ns	1.94^ns	111.66^ns
Rep	2	47.83^ns	29.57**	116.09^ns

Key: DF-Degree of freedom, **p < 0.01 Significant, *p < 0.05 highly significant, ns-not significant.