Citation
Marzalina M., . and Wan Tarmeze W. A., . and Staines H., . Dewinging dipterocarp seeds. pp. 377-383. ISSN 0128-1283
Abstract
When mass flowering season occurs every three to eight years in the tropics seeds ofmany forest species tend to mature at about the same time. They include the majority ofdipterocarp seeds that are winged and classified as recalcitrant. In order to secure as many planting materials as possible harvested seeds must be planted immediately. Previous studies indicated thatdewinging facilitates seed germination and is advantageous when sowing space is limited. Usually seed dewinging is processed manually which is labourintensive. time consumingbutcnticalinretainingthe qualityofrecalcitrantseeds. An experiment was carried out to reduce processing time using a prototype machine namely seed dewinger machine produced by the Forest Research Institute Malaysia. Mechanical dewinging of four dipterocarp species significantly reduced the processing time without affecting seed viability. The process ofdewinging was longer for seeds with greater wing length smaller wing waist and which were heavier. The best-fit model for the duration of processing was determined as time 0.65548 0.0297 (length) -0.379 (waist) 0.134 (weight).
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Abstract
When mass flowering season occurs every three to eight years in the tropics seeds ofmany forest species tend to mature at about the same time. They include the majority ofdipterocarp seeds that are winged and classified as recalcitrant. In order to secure as many planting materials as possible harvested seeds must be planted immediately. Previous studies indicated thatdewinging facilitates seed germination and is advantageous when sowing space is limited. Usually seed dewinging is processed manually which is labourintensive. time consumingbutcnticalinretainingthe qualityofrecalcitrantseeds. An experiment was carried out to reduce processing time using a prototype machine namely seed dewinger machine produced by the Forest Research Institute Malaysia. Mechanical dewinging of four dipterocarp species significantly reduced the processing time without affecting seed viability. The process ofdewinging was longer for seeds with greater wing length smaller wing waist and which were heavier. The best-fit model for the duration of processing was determined as time 0.65548 0.0297 (length) -0.379 (waist) 0.134 (weight).
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Flowering |
| AGROVOC Term: | Dipterocarps |
| AGROVOC Term: | Seeds |
| AGROVOC Term: | Tropics |
| AGROVOC Term: | Forest range |
| AGROVOC Term: | Seed harvesters |
| AGROVOC Term: | Seed quality |
| AGROVOC Term: | Seed germination |
| AGROVOC Term: | Seed moisture content |
| AGROVOC Term: | Germination |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 06:27 |
| URI: | http://webagris.upm.edu.my/id/eprint/22207 |
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