Winged bean international trials

Of the 190 accessions evaluated after one year s growth in Florida, 38 showed tuber formation. Tender leaves are incorporated in the food preparations in the South Asian region. Leaf protein concentrate (crude protein 51.9%) prepared from leaves yielded a PER value of 2.2 in comparison to 2.7 for corn-soy control. International Winged Bean Trials conducted in 19 countries recommend 5 varieties as having the best yield potential under varying environmental conditions. 

After the First International Winged Bean Symposium held at Los Banos, Philippines in 1978, the first international winged bean trials were launched. According to the report of Khan (79), who served as the coordinator of the trials, the aims of the trials were to ... 

Khan, T.N. Speijers, J. Edwards, C.S. "Adaptation of Winged Bean Report on the First International Winged Bean Trials", International Council for Development of Underutilized Plants, Calif., 1984. 

Protein quality studies evaluating various edible portions of the winged bean plant and the results of recent International Field Trials are reviewed. Research efforts have been focused upon the mature seed (protein content 20.7-45.9% in 240 accessions), which is occasionally eaten in parts of Indonesia and Papua, New Guinea. Autoclaved seed meal and wet heat treated seed meal provided a corrected PER value of 1.76 and 1.72 respectively, in comparison to casein control of 2.50. 

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