Stability of Sources of Resistance to Cowpea Aphid (Aphis craccivora Koch, Hemiptera: Aphididae) across Major Cowpea Production Zones in Ghana

Table 3

Effect of aphid infestation on mean seedling mortality and vigour of cowpea cultivars/genotypes.

Cultivar/genotype	Seedling mortality (%)	Seedling vigour score
Apagbaala	96.17 ± 0.311 a	1.17 ± 0.029 d
SARC1-57-2	3.70 ± 0.221 d	3.80 ± 0.031 a
SARC1-91-1	7.99 ± 0.268 c	3.44 ± 0.039 b
IT97K-499-35	96.54 ± 0.304 a	1.17 ± 0.029 d
Zaayura	85.56 ± 0.345 b	1.87 ± 0.026 c
Mean	58.0	2.3
value	<0.001	<0.001

Note. Data are means ± standard error of means; means in a column followed by different letters are significantly different at 5% probability level.