Table 1: Summary of cultural characteristics of Alternaria solani isolates from Kirinyaga, Kiambu and Kajiado counties, Kenya.

Characteristic

Kirinyaga

n = 35

Kiambu

n = 30

Kajiado

n = 31

Overall

n = 96

Mean CD (mm ± SD)

78.60 ± 8.81a

75.09 ± 7.62ab

76.68 ± 8.58b

74.77 ± 7.59

Range/mm

66.0-85.0

66.5-83.5

65.5-84.0

 

Colony colour (Top)%

 

 

 

 

Green

17.1 (06)

26.7 (08)

45.2 (14)

29.2 (28)

Creamish white

 45.7 (16)

6.7 (02)

12.9 (04)

22.9 (22)

Greenish white

 37.1 (13)

63.3 (19)

41.9 (13)

46.9 (45)

Grey

0

3.3 (01)

0

1.0 (01)

Pigmentation (Down)%

 

 

 

 

Brown

2.8 (01)

66.7 (02)

6.4 (02)

5.2 (05)

Creamish white

60.0 (21)

33.3 (10)

58.1 (18)

51.0 (49)

Greenish brown

37.1 (13)

60 (18)

35.5 (11)

43.8 (42)

Nature of margin (%)

 

 

 

 

Irregular

85.7 (30)

33.3 (10)

74.2 (23)

55.2 (53)

Regular

14.3 (05)

66.7 (20)

25.8 (08)

44.8 (43)

Colony zonation (%)

 

 

 

 

Concentric zonation

40.0 (14)

86.7 (26)

64.5 (20)

62.5 (60)

No zonation

60.0 (21)

13.3 (04)

35.5 (11)

37.5 (36)

CD-Average colony diameter. SD-Standard deviation. Means with similar letters in rows are not significantly different. 

Figures in parentheses indicate frequencies of categorical variables