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Table 4 Effect of Streptomyces sp. on root and hypocotyl length of seedlings of cultivated rocket, lamb lettuce, lettuce and tomato in vitro

From: Selection of Streptomyces against soil borne fungal pathogens by a standardized dual culture assay and evaluation of their effects on seed germination and plant growth

 

Length (mm)

Seed treatment

Untreated control

S. anulatus CMJ58I

S. albidoflavus VT111I

S. cyaneus ZEA17I

Cultivated rocket

Radicle

15.52 ± 1.00a cb

46.83 ± 2.11 a

31.11 ± 1.79 b

29.77 ± 2.05 b

Hypocotyl

9.34 ± 0.31 b

11.53 ± 0.36 a

11.11 ± 0.34 a

11.75 ± 0.40 a

N

253

239

255

222

Lamb lettuce

Radicle

16.79 ± 0.51 b

26.35 ± 0.74 a

11.00 ± 0.33 c

9.08 ± 0.42 c

Hypocotyl

11.28 ± 0.37 b

14.55 ± 0.34 a

10.41 ± 0.30 bc

9.24 ± 0.37 c

N

266

272

261

255

Lettuce

Radicle

16.33 ± 0.68 d

39.22 ± 1.95 b

28.31 ± 1.50 c

58.59 ± 2.10 a

Hypocotyl

2.97 ± 0.06 b

2.77 ± 0.05 b

2.95 ± 0.06 b

3.51 ± 0.06 a

N

239

235

245

253

Tomato

Radicle

54.17 ± 1.09 b

59.33 ± 1.45 a

63.96 ± 1.55 a

63.41 ± 1.00 a

Hypocotyl

11.52 ± 0.26 c

13.41 ± 0.33 b

14.69 ± 0.32 a

14.79 ± 0.29 a

N

285

288

289

290

  1. a The mean value followed by standard error
  2. b Tukey post-hoc test; mean values in a row with the same letters are not significantly different (P = 0.05); ns not significant