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Table 3 Rot inhibition in tubers inoculated with six virulent fungi 48 h before the application of Q. phillyraeoides extract stored for 6 months

From: Efficacy of Oryza sativa husk and Quercus phillyraeoides extracts for the in vitro and in vivo control of fungal rot disease of white yam (Dioscorea rotundata Poir)

 

Tuber rot (%)

Fungus

Inoculated and exposed

Inoculated and covered

 

Sratch

Wound

Bore

Scratch

Wound

Bore

L. theobromae

9.9bc

14.0 cd

16.7bcd

13.8bc

17.1de

20.9de

Control

17.7a

29.8a

63.6a

19.5a

74.4a

69.8bc

R. solani

0.0e

11.5d

13.3d

10.5c

14.0cde

15.6e

Control

5.8 cd

16.5c

39.7abc

12.0bc

52.5 cd

45.2e

A. niger

7.5c

13.1 cd

19.6 cd

7.2 cd

20.6d

20.8de

Control

14.6b

25.6b

48.9bc

13.4bc

55.1c

78.3b

P. oxalicum

7.8c

10.7d

11.1de

8.3 cd

13.9cde

14.9e

Control

13.3b

22.3bc

32.4c

15.5b

48.2c

44.8 cd

S. rolfsii

4.7 cd

7.5e

11.3de

7.5 cd

17.3de

24.6d

Control

10.2bc

21.4bc

50.2b

19.8a

64.6b

81.7a

F. oxysporum

5.4 cd

11.5d

14.4d

10.5c

13.2cde

19.7de

Control

9.8bc

21.1c

47.6bc

16.6b

58.8bc

57.7abc

Std deviation

4.8

6.9

18.6

4.3

23.4

25.3

  1. Means with the same letter along a column are not significantly different (P = 0.05).