Development and interaction between plant architecture and yield-related traits in winged bean (Psophocarpus tetragonolobus (L.) DC.)

Winged bean ( P. tetragonolobus (L.) DC.) is a leguminous crop that could contribute towards food security in tropical areas, but whose growth and development is still poorly understood. In order to develop improved individuals for increased green pod and seed productivity, we investigated the factors involved in winged bean plant architecture, development, and their link to a number of yield-related traits. An F 2 population was generated from the cross between M3 and FP15 Malaysian accessions and assessed under field conditions in Malaysia. The results showed stem length to be mainly influenced by internode length ( r s = .80; p