Plant Health parameters RK3 RK4 Consortium C1 Control Germination Percentage (%) 15 DAS 35 ± 0.5 26.5 ± 0.11 58.3 ± 0.5 18 ± 0.91 70 ± 0.66 30 DAS 51.5 ± 1.5 50 ± 0.8 67 ± 1.2 38 ± 1.6 91.5 ± 0.97 Chlorophyll Content index 45 DAG 0.19 ± 0.05 0.14 ± 0.043 0.22 ± 0.043 0.04 ± 0.043 0.24±0.026 90 DAG 0.24 ± 0.04 0.17 ± 0.052 0.28 ± 0.030 0.038 ± 0.027 0.33 ± 0.11 Plant height(cm) Day after Germination (DAG 30 DAG 1.42 ± 0.20 1.73 ± 0.20 2.4 ± 0.48 1.48 ± 0.21 6.03 ± 0.12 60 DAG 4.076 ± 0.24 1.91 ± 0.06 7.25 ± 0.75 1.80 ± 0.30 8.38 ± 0.49 90 DAG 7.21 ± 0.61 3.5 ± 0.5 9.63 ± 0.71 2.17 ± 0.59 11.62 ± 1.26 Root length(cm) Day after germination (DAG) 30 DAG 1.65 ± 0.32 1.4 ± 0.36 3.76 ± 0.55 1.25 ± 0.28 5.54 ± 0.45 60 DAG 4.47 ± 0.88 1.71 ± 0.36 6.03 ± 0.25 1.26 ± 0.25 7.45 ± 1.05 90 DAG 6.45 ± 0.63 2.83 ± 0.80 10.62 ± 1.02 1.64 ± 0.23 12.79 ± 0.44 RK3, Withania somnifera + culture RK 3 + Petrol oil+ soil ; RK4, Withania somnifera + culture RK 4 + Petrol oil +soil ; Consortium, Withania somnifera + consortium of RK3 and RK4 + Petrol oil +soil ; C1, Withania somnifera + No culture + Petrol oil+ soil ; Control, Withania somnifera + No culture+ No petrol oil+ soil.

Table 3: Health parameters of Withania somnifera in petrol engine oil contaminated soil Day after germination (DAG), Results are mean of three replicates with standard deviation (Means ± S.D, n=3) and differences were considered significant at p<0.05.