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Table 3 Influence of non-aflatoxigenic and aflatoxigenic ratios of A. flavus. on reduction of aflatoxins produced by aflatoxigenic isolates of A. flavus (ZMW 0127)

From: Bio-competitive exclusion: efficacy of non-aflatoxigenic Aspergillus section Flavi-L morphotypes in control of aflatoxigenic Aspergillus flavus in groundnuts (Arachis hypogaea L.)

 

Aflatoxin B (B1 + B2) (μgg−1)s

R (%)t

Treatment efficiency (TE)

Non-aflatoxigenic r

(2:1)

(4:1)

(2:1)

(4:1)

(2:1)

(4:1)

CHv 1051

49a

69a

51.0

34.9

1.02a

1.72b

CHr 1701

44a

72b

56.4

32.1

1.13ab

1.61b

GWe 2274

46b

79b

54.5

25.5

1.09a

1.26a

CHp 1019

40a

80b

60.4

24.5

1.21c

1.23a

GKw 2471

48c

59ab

52.5

44.3

1.05a

2.22c

MRn 9932

46bc

68a

54.5

35.8

1.09a

1.79bc

MTd 0208

40a

56c

60.4

47.2

1.21c

2.36c

NRRL 21882

42a

54c

58.4

49.1

1.17ab

2.46c

ZMW 0127

101d

106d

. . .

. . .

. . .d

. . .d

  1. rNRRL 21882: Afla-Guard active ingredient. ZMW 0127 produces aflatoxins and it represents the positive control
  2. sAtoxigenic and toxigenic isolates were co-inoculated at 1 × 106 total conidia ml−1 in two ratios of concentrations: 100% toxigenic and 50% atoxigenic (2:1) and 80% toxigenic and 20% atoxigenic (4:1)
  3. tAflatoxin B reduction (%) = [1 – (total aflatoxin content in groundnut seed co-inoculated with both toxigenic and atoxigenic isolates of Aspergillus flavus/total aflatoxin content in groundnut seed inoculated with ZMW 0127)] × 100
  4. Mean values with the same superscript letter within a column are not significantly different @ 5% significance level