Table 3. Percent1 inhibition of R. solani radial growth by T. harzianum mutant and wild strains recovered from soils type A and B stored at 5ºC (a) and at 22ºC (a).

(a)

Days

Mutant Strains

Wild Strains

Th 12A 10.1

Th 11A 80.1

Th 11C 40.1

Th650-NG 7

Th 12

Th 11

Th 650

Type B soil    Type A soil

02

52.55 a

53.89 a

54.75 a

50.32 a

52.96 a

48.55 a

54.92 a

90

52.49 a

54.42 a

54.81 a

49.51 a

53.51 a

47.58 a

55.25 a

120

52.74 a

54.56 a

55.07 a

50.95 a

53.57 a

48.03 a

55.37 a

180

53.15 a

54.09 a

54.86 a

51.00 a

52.56 a

49.09 a

54.75 a

02

50.21 a

52.32 a

51.45 a

47.87 a

50.98 a

48.51 a

54.80 a

90

50.41 a

52.46 a

50.95 a

49.47 a

52.68 a

47.71 a

55.30 a

120

49.54 a

52.38 a

50.95 a

50.92 a

51.83 a

48.27 a

54.50 a

180

49.82 a

50.80 a

51.86 a

48.78 a

53.93 a

49.09 a

56.79 a

(b)

Days

Mutant Strains

Wild Strains

Th 12A 10.1

Th 11A 80.1

Th 11C 40.1

Th650-NG 7

Th 12

Th 11

Th 650

Type A soil

02

50.21 a

50.22 a

52.35 a

51.14 a

51.42 a

52.20 a

51.88 a

90

49.96 a

50.34 a

50.64 a

50.74 a

50.94 a

51.81 a

52.94 a

120

49.53 a

50.24 a

54.49 a

50.78 a

51.94 a

51.45 a

51.94 a

180

52.69 a

49.77 a

53.88 a

50.32 a

50.34 a

50.73 a

53.72 a

Type B soil

02

52.80 a

55.98 a

58.64 a

53.42 a

56.65 a

54.38 a

59.74 a

90

53.81 a

56.28 a

59.87 a

54.38 a

58.15 a

52.95 a

60.20 a

120

54.03 a

56.55 a

57.12 a

54.19 a

57.29 a

51.85 a

58.56 a

180

54.06 a

56.57 a

57.47 a

54.44 a

55.97 a

55.44 a

56.73 a

1/Data in percent were obtained using the Dennis and Webster (1971) formula and the angular Bliss transformation. Identical letters in columns mean that there are no significant differences after statistical analysis using ANDEVA.
2/Controls of % inhibition of R. solani radial growth by mutant and wild T. harzianum strains were run after inoculation of vials and before storage.

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