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Tuesday 23 August 2016

Flowering Predictions Based on 20 Years of Phenological Observations of Neobalanocarpus heimii (King) Ashton

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Flowering Predictions Based on 20 Years of Phenological Observations of Neobalanocarpus heimii (King) Ashton

  • Author 
  • Marzalina Mansor
  • Jayanthi Nadarajan
  • Ang Khoon Cheng

  • Abstract 
  • This study focuses on the phenological behavior of Neobalanocarpus heimii, a tree species with a high reputation as a ‘primary hardwood’. Twenty years of monthly phenological observations were made on this species at Forest Research Institute Malaysia (FRIM), Pasoh Forest Reserve (Pasoh FR), Ulu Gombak Forest Reserve (Ulu Gombak FR) and Ampang Forest Reserve (Ampang FR). The data indicates that there is a high probability (> 95%) of an onset of flowering following the end of a dry period. Flowering occurs in most years (either annually or biannually). The event can either peaks during March-May and maybe followed by a second peak during Sept.-Nov. in all four phenological plots. Based on the percentage of each month that flowers, it can be concluded that the flowering patterns can be predicted for at least in three of the forest areas. This indicates that some dipterocarp species do not show ‘masting’ behavior and such species can be very useful for reforestation programs.

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