Seed dewinger machine-an answer to processing Dipterocarp seeds: some preliminary results
2003
Marzalina, M.
The majority of dipterocarps do not flower regularly. Consequently, when mast flowering and fruiting occur once in three to eight years, dipterocarps tend to produce hundreds of kilograms of seeds. Most of these winged seeds are classified as recalcitrant in nature. Seeds are sensitive to drying to low moisture content and low storage temperature. This leaves no choice to the nursery man, whereby most of the seeds need to be planted right away. Although some may consider that dewinging of seeds does not have much effect on the seed germination, the process may be necessary when the space for seed germination is limited. Usually these seeds are processed manually. Such technique appears to be labour intensive, time consuming and yet critical to retain the quality of the recalcitrant seeds. The Seed Technology Section of the Forest Research Institute Malaysia has come out with a prototype Seed Dewinger Machine to reduce processing time for dewinging. Preliminary studies indicated that the dewinging of seeds from four dipterocarp species using this machine was much faster than processing them manually while at the same time maintaining their quality.
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