Plant growth-promoting effects of rhizospheric and endophytic bacteria associated with different tomato cultivars and new tomato hybrids

Chemical and Biological Technologies in Agriculture

Table 4 VAP test—total lateral root length

	Sample	Total lateral root length (cm)	Stdev	p-value comparing to the control
Rhizospheric strains	Control	12.50	3.38
	1	12.83	5.08	1.0
	2	14.20	1.89	1.0
	3	12.16	2.51	1.0
	4	10.07	2.45	0.94
	5	9.95	2.10	0.92
	6	6.12	1.84	0.054 ⁺
	7	15.44	4.21	0.84
	8	15.65	2.66	0.79
Root endophytes	Control	12.03	3.58
	9	8.15	2.03	0.67
	10	4.55	3.55	0.018 *
	11	8.97	2.59	0.89
	12	7.40	1.69	0.42
	13	8.23	2.47	0.7
	14	8.89	3.19	0.88
	15	5.59	2.20	0.069 ⁺
	16	5.63	3.23	0.072 ⁺
	17	10.73	5.37	1.0
	18	5.36	2.71	0.052 ⁺

Total lateral root length measurement after 8 days growth. Control: Arabidopsis thaliana VAPs not inoculated; Stdev standard deviation
Statistical analysis: significant differences *0.01 < p < 0.05, **0.001 < p < 0.01, ***p < 0.001; not significant but relevant differences ⁺0.05 < p < 0.1