Effects of Cropping System and Cowpea Variety on Symbiotic Potential and Yields of Cowpea (Vigna unguiculata L. Walp) and Pearl Millet (Pennisetum glaucum L.) in the Sudano-Sahelian Zone of Mali
Cowpea nodules number (nodules/plant) and efficiency as affected by cropping system and cowpea variety at flower buds stage at Cinzana Agronomic Research Station, 2007 and 2008.
Flower buds stage
Nodules number (nodules/plant)
Efficient nodules (%)
Year 1: 2007
Year 2: 2008
Millet/cowpea intercropping (1 row/1 row)
Millet/cowpea intercropping (2 hills/1 hill)
Cowpea sole crop
Cropping system (S)
Year × cropping system (Y × S)
Cowpea variety (V)
Year × variety (Y × V)
Cropping system × cowpea variety (S × V)
Year × cropping system × variety (Y × S × V)
Coefficient of variation (%)
Means followed by the same letters in the same column for each parameter are not significantly different (), according to Duncan test.
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