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Table 3 The Effects of Virus Inoculum and Stage of Plant Growth at the Time of Inoculation on Growth and Yield of Cowpea Cultivar "OLOYIN" Cultivar

From: Interactions of viruses in Cowpea: effects on growth and yield parameters

INOCULUM

API

Plant height(cm)

No. of Leaves

No. of Flowers

No. of Pods

Pod length(cm)

Seed no./pod

Seed Weight(g)

CABMV

10

24.9b

11.1b

0.0*

0.0

0.0

0.0

0.0

 

30

33.8ab

20.9b

3.7b

3.0b

9.6a

6.7a

0.09b

CMeV

10

23.1b

6.9c

0.0

0.0

0.0

0.0

0.0

 

30

27.7b

17.1b

3.3b

2.0b

7.1b

2.0b

0.01c

SBMV

10

28.2b

17.2b

0.0

0.0

0.0

0.0

0.0

 

30

40.4a

18.0b

2.3b

1.3b

10.2a

6.7a

0.1b

CABMV+

10

11.9c

5.7c

0.0

0.0

0.0

0.0

0.0

CMeV

30

26.7b

13.6b

1.3b

1.0b

5.2b

3.3ab

0.06b

CABMV+

10

12.4c

17.9b

0.0

0.0

0.0

0.0

0.0

SBMV

30

30.4b

22.1a

2.0b

1.7b

4.1b

2.7b

0.05b

CMeV+

10

7.8c

12.8b

0.0

0.0

0.0

0.0

0.0

SBMV

30

23.8b

23.4a

3.0b

2.0b

4.0b

1.7b

0.09b

CABMV+

10

8.1c

9.3c

0.0

0.0

0.0

0.0

0.0

C MeV+

30

12.2c

14.4b

1.0b

0.0

0.0

0.0

0.0

SBMV

10

29.7b

18.9b

6.0a

5.3a

9.3a

4.3a

0.145a

BUFFER

30

42.7a

25.0a

7.0a

6.3a

10.0a

5.3a

0.145a

  1. API-Age of plant at inoculation; CABMV-Cowpea aphid-borne mosaic virus, CMeV-Cowpea mottle virus, SBMV-Southern bean mosaic virus.
  2. Each value is the mean of 3 replicates. In each column means followed by the same letter are not significantly different (P < 0.05) according to Duncan's multiple range test.
  3. *All zero (0) values carry the letter c according to Duncan's multiple range test.