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Table 1 Screening the effects of 17 bacterial isolates from vermicompost and earthworm on the nematode indices of Meloidogyne javanica in the roots of tomato plants in a glasshouse

From: Biocontrol potential of bacterial isolates from vermicompost and earthworm against the root-knot nematode Meloidogyne javanica infecting tomato plants

Bacterial isolatesa Galls/g root Egg masses/g root Eggs/g root J2s/pot soil Root fresh weight (g) Final population (Pf) Reproduction factor (Rf) Rf reduction (%)b
C1 183 b 100 d–g 4238 cd 5700 g 6.00 b–f 33,031 cd 5.5 cd 66.0
C2 158 bc 122 c–g 7744 b–d 18,000 a–d 8.12 ab 82,417 ab 13.7 ab 15.3
C3 151 bc 67 gf 2663 d 11,100 b–g 5.67 b–f 26,424 b–d 4.4 b–d 72.8
C6 123 bc 184 b–d 7200 b–d 22,500 a 5.95 b–f 65,865 a–c 10.9 a–c 32.3
C8 107 bc 164.5 b–e 12,338 ab 21,450 ab 6.00 b–f 97,487 a 16.2 a 0.0
C9 148 bc 149 c–f 9225 bc 13,500 a–g 8.12 ab 86,058 a 14.3 a 11.6
LV1 128 bc 50 g 3300 d 9975 d–g 5.02 c–f 27,930 cd 4.6 cd 71.3
LV2 110 bc 200 a–c 9375 bc 17,100 a–f 5.15 b–f 58,271 a–c 9.7 a–c 40.1
LV3 131 bc 140 c–f 7650 b–d 17,700 a–e 7.95 a–c 81,350 ab 13.5 ab 16.4
LV5 113 bc 172.5 b–e 6694 cd 15,900 a–g 6.80 a–d 62,962 a–c 10.4 a–c 35.3
LV6 158 bc 154 b–e 6038 cd 15,750 a–g 4.40 d–f 41,249 cd 6.8 cd 57.3
LV8 131 bc 235 ab 8275 b–d 16,275 a–g 6.62 a–e 59,056 a–c 9.8 a–c 39.3
VW2 175 bc 205 a–c 6435 cd 19,200 a–d 3.65 ef 43,931 b–d 7.3 b–d 54.8
VW3 122 bc 92 e–g 5025 cd 10,275 d–g 4.90 d–f 36,393 cd 6.0 cd 62.6
VW4 95 c 41 g 3225 d 6900 e–g 5.77 b–f 25,751 cd 4.2 cd 73.5
VW5 110 bc 196.5 a–c 6875 b–d 21,150 a–c 9.15 a 85,636 a 14.2 a 12.0
VW6 161 bc 121 e–g 3075 d 6390 f–g 3.55 f 17,895 d 2.9 d 81.6
Water 328 a 275 a 16,650 a 20,475 a–d 4.35 d–f 97,404 a 16.2 a
  1. Data are the means of 4 replicates. Values in the same column followed by the same letter(s) are not significantly different (P ≤ 0.05), according to Duncan’s multiple range test
  2. aBacterial isolates from the coelomic fluid of earthworm (C), Liquid vermicompost (LV), and Vermiwash (VW)
  3. bPercentage of the nematode reproduction factor (Rf) reduction compared to the control