*Department of Soil Science, Faculty of Agriculture, Universitiy Pertanian Malaysia, 43400 UPM Serdang, Selangor, D.E., Malaysia
Department of Agronomy and Horticulture, Universitiy Pertanian Malaysia, 43400 UPM Serdang, Selangor, D.E., Malaysia
The accumulation of dry matter and seed yield in winged bean (Psophocarpus tetragonolobus L. DC.) under different support and unsupport systems revealed that plants grown with 2 m support height produced highest dry matter and seed yield. There was a 6.85 times higher seed yield for support height of 2 m compared with unsupported plants. Seed yield was positively and significantly correlated with number of pods per plant, leaf dry matter (LDM) and total dry matter (TDM). Plants grown with 2 m support height gained significantly higher LDM (52%) at vegetative stages compared with other treatments.