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Table 3 VAP test—primary root length

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

  Sample Primary root length (cm) Stdev p-value comparing to the control
Rhizospheric strains Control 6.94 0.46  
1 7.90 0.96 0.2
2 7.11 0.43 1.0
3 5.20 0.37 0.001 ***
4 6.88 0.32 1.0
5 5.03 0.75 0.001 ***
6 4.28 0.47 0.001 ***
7 7.12 0.58 1.0
8 6.83 0.47 1.0
Root endophytes Control 7.51 0.81  
9 6.19 0.22 0.048 *
10 3.77 0.85 0.001 ***
11 7.60 0.54 1.0
12 6.84 0.37 0.8
13 7.60 0.53 1.0
14 6.98 0.76 0.95
15 4.69 0.64 0.001 ***
16 6.02 0.52 0.02 *
17 6.33 0.70 0.1
18 6.20 0.50 0.053 +
  1. Primary root length measurement after 8 days growth. Control: Arabidopsis thaliana VAPs not inoculated; Stdev standard deviation
  2. 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