Growth and development of components of sorghum/cowpea intercrop in northern Nigeria
2008
Mohammed, I.B. | Olufajo, O.O. | Singh, B.B. | Miko, S. | Mohammed, S.G.
The objective of the study was to evaluate the growth and dry matter production of components of sorghum/cowpea intercrop at Kano , Nigeria . The treatments consisted of thirty cowpea genotypes differing in maturity periods and growth habits which were intercropped with local sorghum in 1:1 or single alternate row arrangement. The results revealed that plant height, number of days to maturity and dry matter of sorghum was not affected by cowpea genotype. The percent plant count after emergence and at harvest of the genotypes was not affected by sorghum intercropping; the mean values were 91% and 86%, respectively. The early maturing genotypes flowered (36-39 days) and matured (70-75 days) earlier than the medium genotypes which took (36-39 days) and (70-75 days) to flower and mature, respectively. The late maturing genotypes took longer time to flower (42-81 days) and some matured in 79-80 days while Kanannado and IT95K-1133-2 which flowered, did not attain maturity due possibly to insect damage. Generally the early maturing genotypes had narrower canopy spread (65-97 cm) than the medium and late maturing genotypes most of which were at par with IT96D-738 having the widest width (165 cm). Plant height of cowpea was not affected by cowpea genotype. Medium maturing genotypes IT96D-740 recorded the highest dry matter but which was at par with few other medium and late maturing genotypes while lower values were recorded by the early maturing group.
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