Table 3.

Nodulation, nitrogenase activity and dry weight accumulation of Sesbania cannabina at 30 days after inoculation with rhizobial strains isolated from various Sesbania spp.

Strain	Original host	Number of nodules	ARA (μmol C2H4 per plant h−1)	Total dry weight (mg)
Rhizobium (Agrobacterium) IRBG74	S. cannabina	43 ± 6	18.57 ± 6.77	293 ± 59*
Azorhizobium doebereinereae Br5401T	S. virgata	Several small bumps	0	354 ± 32*
Mesorhizobium huakuii KFR647	S. sesban	7 ± 2	2.87 ± 1.23	153 ± 19
Rhizobium sp. DUS1110	S. exasperata	55 ± 5	3.55 ± 0.32	441 ± 27*
Ensifer saheli ORS609T	S. cannabina	52 ± 5	16.14 ± 1.27	360 ± 32*
Uninoculated		0	0	130 ± 11

Values are means ± SE (n = 6) and those marked with * are significantly greater than the uninoculated plants at P < 0.01 using analysis of variance.