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Table 2 The Effect of Virus Inoculum And Stage of Plant Growth at the Time of Inoculation on Growth and Yield of Cowpea Cultivar IT86D-719

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

21.8b

1.0c

0.0*

0.0

0.0

0.0

0.0

 

30

40.4a

10.0b

1.0b

0.0

0.0

0.0

0.0

CMeV

10

25.9b

5.2b

0.0

0.0

0.0

0.0

0.0

 

30

37.9ab

16.0a

3.0ab

0.0

0.0

0.0

0.0

SBMV

10

28.5b

14.0a

0.0

0.0

0.0

0.0

0.0

 

30

38.7ab

14.1a

6.3a

3.3ab

9.1a

6.7a

0.1b

CABMV+

10

33.5ab

14.2a

0.3bc

0.0

0.0

0.0

0.0

CMeV

30

37.8ab

6.0b

0.7bc

0.0

0.0

0.0

0.0

CABMV+

10

24.9b

3.3c

0.0

0.0

0.0

0.0

0.0

SBMV

30

36.1ab

6.9b

0.0

0.0

0.0

0.0

0.0

CMeV+

10

25.2b

8.8b

1.7b

0.0

0.0

0.0

0.0

SBMV

30

41.7a

24.6a

1.7b

0.0

0.0

0.0

0.0

CABMV+

10

19.8c

0.6c

0.0

0.0

0.0

0.0

0.0

CMeV+

30

25.7b

12.6a

0.0

0.0

0.0

0.0

0.0

SBMV

10

37.6ab

9.0b

4.3a

2.7b

7.9b

5.0b

0.2a

BUFFER

30

42.3a

13.0a

6.7a

4.0a

8.6a

5.0b

0.2a

  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.