Abstract
A study was undertaken to define more clearly the role of the early loss of apical dominance on yield of cowpea [Vigna unguiculata (L.) Walp. cv. Vita-5]. Decapitation at the fifth leaf stage resulted in an increase in branching components, yields and harvest indices, while vegetative d. wt accumulation was reduced. Foliar-applied sprays of 6-benzyladenine had no effect on branching unless combined with decapitation and no significant effects on yield over that of controls were observed. However, harvest indices were increased by 50 per cent.
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