Table 8 Germination of stored grains treated with binary combinations of Hymenocardia acida wood ash with Plectranthus glandulosus leaf powder and infested, and non-infested by Sitophilus zeamais under laboratory conditions (temp.: 22.76 ± 2.02 °C; r.h. = 69.87 ± 9.93%)

0

94.33 ± 1.36^a

94.33 ± 1.36^a

94.33 ± 1.36^a

21.67 ± 2.15^d

21.67 ± 2.15^d

21.67 ± 2.15^c

5

91.08 ± 0.21^a

90.83 ± 1.50^a

94.83 ± 1.90^a

84.67 ± 0.83^c

81.67 ± 3.19^c

78.33 ± 0.96^b

10

92.00 ± 0.79^a

94.50 ± 1.83^a

92.83 ± 0.88^a

88.33 ± 1.67^bc

84.17 ± 2.50^bc

83.33 ± 1.36^ab

20

92.17 ± 0.74^a

94.17 ± 1.50^a

93.42 ± 1.64^a

92.33 ± 0.83^ab

93.33 ± 1.36^a

86.67 ± 2.36^ab

40

91.17 ± 0.32^a

92.08 ± 0.79^a

92.20 ± 1.73^a

97.50 ± 1.60^a

95.00 ± 1.67^a

90.00 ± 2.36^a

F _{(4; 15)}

2.72^ns

1.30^ns

0.41^ns

430.01***

180.43***

218.78***