Diversity of Rhizobium leguminosarum from Pea Fields in Washington State

Table 4

Mean values of biomass due to nitrogen (N) fixation, quantity (𝑄) of N per plant, and quantity of N fixed by strains (𝑛=30).

Strains	Biomass due to N fixation (g N)	𝑄 of N/plant (mg N)	𝑄 of N fixed (mg N)
Oak1	0.14^a	15.22^a	0.13^a
Col1	0.21^a	17.13^a	2.03^ab
Sh2	0.71^ab	28.92^ab	13.83^bc
SP1	1.06^b	40.99^b	25.9^c
P value	0.009	0.009	0.003

Letters that are the same within a column are not significantly different at 𝑃≤0.05.