Citation
Chua L . S . L ., . The flowering phenology and floral biology on Nepenthes macfarlanei (Nepenthaceae) from Mt. Purun Peninsular Malaysia. pp. 377-387. ISSN 0128-1283
Abstract
The flowering phenology and floral biology of Nepenthes macfarlanei (Nepenthaceae) from Mt.Purun Peninsular Malaysia. The phenology and flower development from opening to senescence and fruit formation was observed in 44 mature plants of Nepenthes macfarlanei Hemsl. at Mt. Purun Pahang Peninsular Malaysia. These plants flowered continuously throughout the 23-month phenological observation. Of these 73 per cent plants were pistillate plants while the remaining 27 per cent were staminate plants. The sampled population produced 1588 pistillate and 3183 staminate flowers during the period. There was a distinct peak period where 57.7 per cent of the pistillate flowers and 74.6 per cent of staminate flowers reached anthesis synchronously. The staminate and pistillate inflorescences required 4-7 weeks after emergence from leaf sheaths for the first bud to reach anthesis. Stigma receptivity occured at any time of the day while anther dehiscence occured between 0630 and 1700 hours. Fertilised flowers developed into mature fruits in 20-26 weeks. The mature fruit produced an average of 136 seeds but only two-thirds of the seeds were mature. The sampled population was estimated to produce approximately 200 000 mature seeds during the phenological period. There was a high mortality of pistillate plants towards the end of the period.
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Abstract
The flowering phenology and floral biology of Nepenthes macfarlanei (Nepenthaceae) from Mt.Purun Peninsular Malaysia. The phenology and flower development from opening to senescence and fruit formation was observed in 44 mature plants of Nepenthes macfarlanei Hemsl. at Mt. Purun Pahang Peninsular Malaysia. These plants flowered continuously throughout the 23-month phenological observation. Of these 73 per cent plants were pistillate plants while the remaining 27 per cent were staminate plants. The sampled population produced 1588 pistillate and 3183 staminate flowers during the period. There was a distinct peak period where 57.7 per cent of the pistillate flowers and 74.6 per cent of staminate flowers reached anthesis synchronously. The staminate and pistillate inflorescences required 4-7 weeks after emergence from leaf sheaths for the first bud to reach anthesis. Stigma receptivity occured at any time of the day while anther dehiscence occured between 0630 and 1700 hours. Fertilised flowers developed into mature fruits in 20-26 weeks. The mature fruit produced an average of 136 seeds but only two-thirds of the seeds were mature. The sampled population was estimated to produce approximately 200 000 mature seeds during the phenological period. There was a high mortality of pistillate plants towards the end of the period.
Additional Metadata
| Item Type: | Article |
|---|---|
| Additional Information: | Summaries (En Ms) |
| AGROVOC Term: | NEPENTHACEAE |
| AGROVOC Term: | PLANTS |
| AGROVOC Term: | FLOWERING |
| AGROVOC Term: | FLOWERS |
| AGROVOC Term: | PHENOLOGY |
| AGROVOC Term: | BIOLOGY |
| AGROVOC Term: | HIGHLANDS |
| AGROVOC Term: | SEX RATIO |
| AGROVOC Term: | MORTALITY |
| AGROVOC Term: | SEED PRODUCTION |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:52 |
| URI: | http://webagris.upm.edu.my/id/eprint/17956 |
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