The growth response of rice (Oryza sativa L. var. FARO 44) in vitro after inoculation with bacterial isolates from a typical ferruginous ultisol

Bulletin of the National Research Centre

Table 2 Germination parameters of rice inoculated with PSBs and control

Samples	Germination (%) on				APC (Hrs)	WUE (%)	GTM (Hrs)	SGM (%)
Samples	1st DAS	2nd DAS	3rd DAS	4th DAS	APC (Hrs)	WUE (%)	GTM (Hrs)	SGM (%)
A 10	90±5.7^a	100±2.3^a	100±2.1^a	100±2.1^a	24±0.5^a	61±2.1^a	30±0.2^a	9±0.5^a
A 7.5	85±2.8^a	90±2.8^a	95±2.4^a	100±2.4^a	30±0.5^b	60±5.7^a	30±0.2^a	8.5±0.6^a
A 5.0	60±2.3^b	70±2.5^ba	90±2.6^a	100±5.3^a	30±0.5cb	56±0.4^c	30±0.5^a	2±0.5^b
B 10	70±2.1^ab	75±5.3^c	80±5.1^a	90±5.7^a	42±0.5^d	51±2.1^d	30±5.3^a	7±0.5^a
B 7.5	85±5.7^a	85±5.4^ba	85±5.6^a	100±5.7^a	30±0.5eb	49±2.1^d	36±0.4^b	1±0.0^c
B 5.0	50±2.3^cb	50±2.4^d	60±2.4^b	65±5.7^b	48±0.5^f	43±3.0^f	36±0.2^b	2.5±0.2^d
C 10	85±2.1^a	85±2.1^a	100±5.7^a	100±2.8^a	30±0.5^gb	53±0.4^d	30±0.4^a	5.6±0.05^e
C 7.5	85±3.3^a	90±0.9^a	95±2.8^a	100±5.7^a	36±0.5^h	51±0.2^d	30±0.4^a	8.5±0.2^a
C 5.0	60±2.4^db	60±2.5^e	70±2.8^c	75±2.4^c	30±0.5^ib	51±0.3^d	30±0.4^a	6±0.5^f
D 10	55±3.4^eb	55±2.5^f	55±5.7^d	65±2.8^d	48±0.5^j	38±3.1^j	42±0.1^a	1±0.0^c

Results with similar alphabetic superscripts on same column did not differ from each other (p>0.05). Results were in mean and standard error of four replicates. DAS=Day after sowing, APC= Appearance of coleoptile, WUC= Water used efficiency, GTM= Germination time, SGM= Speed of germination. A10, A7.5 and A5.0 = 10 ml, 7.5 ml and 5.0 ml of Bacillus sp., respectively. B10, B7.5 and B5.0 = 10 ml, 7.5 ml and 5.0 ml Proteus sp. respectively. C10, C7.5 and C5.0 = 10 ml, 7.5 ml and 5.0 ml of Klebsiella sp., respectively. D10= 10 ml of control.