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Table 6.Effects of densities and varieties of cowpea on phenology of sole and intercropped
maize.
Treatments Days to 50% tasseling Days to 90% maturity
Cowpea plant density
50% 68.67 a 104.6 a
75% 69.44 ab 104.3 a
100% 70.44 b 104.1 a
LSD(P<0.05) 2.016 NS
Cowpea verities
Kenketi 69.11 a 104.0 a
Black eye bean 69.22 a 104.3 a
Bole 70.22 a 104.7 a
LSD(P<0.05) NS NS
CV% 1.67 1.41
Cropping system
Sole maize 71.67 a 105.0 a
Intercropped maize 69.52 b 104.3 a
LSD(P<0.05) 1.70 NS
CV% 1.96 1.22
NS = non-significant, CV (%) = coefficient of variation in %, LSD = least significant difference
at 5% level of significance , Means in column and followed by the same letters are not significantly
different at 5% level of significance according to LSD test.
4.2.2. Effect on Growth parameters of maize
Plant height (cm)
The result of study indicated that planting density had highly significant (P<0.01) effect on plant
height of maize unlike to cowpea varieties, interactions (variety and density) as well as cropping
system that showed non-significant effect (Appendix Table 2). The tallest (120.5 cm) plants were
recorded at planting density of 100% which was at par with 75% and shortest (111.0 cm) plants
were recorded from 50% maize-cow pea intercrop (Table 7). In general, as the planting density of
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