Symbiotic Efficiency of Native Rhizobia Nodulating Common Bean (Phaseolus vulgaris L.) in Soils of Western Kenya

Table 4

Effect of isolate inoculation on root dry weight, shoot dry weight, N concentration, N content, and SE under controlled experiments in MMUST, Kenya.

Isolate	RDW; (g plant^−1)	SDW; (g plant^−1)	N concentration; (mg plant^−1)	N content; (mg plant^−1)	Symbiotic efficiency (%)
MUST003	0.89ab	1.76a	1.32b	2.33b	100.0b
MUST004	0.80b	1.78a	1.41b	2.48b	107.0b
MUST005	1.08a	1.85a	2.02a	3.80a	164.0a
MUST006	1.07a	1.73a	1.06b	1.80bc	78.0bc
Strain 446	1.07a	1.69a	1.51ab	2.56b	110.0b
CIAT 899	0.56c	1.50a	1.08b	1.55bc	67.0bc
PCNTL	1.07a	1.68a	1.37b	2.32b	100.0b
NCTL	1.00ab	1.63a	0.46c	0.75c	—
LSD (5%)	0.24	0.39	0.56	1.13	49.0

NCTL: negative control; PCNTL: positive control; LSD is the least significant difference of means; Strain 446 and CIAT 899 are reference commercial inoculants; means within a column followed by the same letter(s) are not significantly different at < 0.05.