The Phenology of Parah Tree (Elateriospermum tapos) at the Nature Trail with Different Terrain in Khao Nan National Park, Nakhon Si Thammarat Province

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Juthamas Suppapan
Phatthanaporn Rinthajak
Verakiat Supmee
Worawitoo Meesook

Abstract

Parah (Elateriospermum tapos) is native to Southern Thailand. The seeds can be used for several kinds of processed food. The phenology of parah features seasonal changes with the main factor of light exposure around their buds affecting budbursts and leaf color. The purpose of this study was to analyze the phenology of parah in Nopphitam district and Tha Sala district, Nakhon Si Thammarat province, which both districts have different conditions of light exposure. The samples of parah were collected in Huai Lek Nature Trail (285 meters above sea level, 30 degrees average slope) and Hin Thor Waterfall Nature Trail (455 meters above sea level, 45 degrees average slope). Forty trees of parah were the representative for each site, and then the phenological analysis was conducted monthly for twelve months consisting of leaf color, flower, and seed weight. The results showed that the different geographical conditions of the two sites affected light exposure of the budbursts having an impact on the phenology of parah. The two sites had different phenological periods of one month. Instead of seed production of parah in both sites, there were no differences in terms of production. This study suggested that a period of seed harvest for each area should be determined for the benefits of sustainability from parah. Therefore, there should be further analysis including measuring light exposure around budbursts to uncover additional data.

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Section
บทความวิจัย (Research Articles)

References

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