Outplanting Performance of the Bornean Tropical Indigenous Species Shorea macrophylla (de Vriese) P. S. Ashton in relation to Seedling Age

Planting high-quality seedlings with desirable growth attributes are associated successful survival and performance following outplanting. Considering that most tree species from the Dipterocarpaceae family on IUCN Red List of Threatened Species, proper conservation such is necessary. Very little known no clear consensus regarding whether increasing seedling production period enhances outplanting potential tropical dipterocarp planted under enrichment planting in Malaysia. In this study, one Bornean indigenous species, Shorea macrophylla (de Vriese) P.S. Ashton, was produced Universiti Malaysia Sarawak nursery outplanted at Sampadi Forest Reserve, Sarawak. Different periods (3, 6, 9, 24 months) were tested for time as well subsequent after 12, 24, 42 months The findings revealed older (9- 24-month-old) S. morphologically larger younger (3- 6-month-old) seedlings. Nonetheless, overall pooled mean rates declined 61.7 to 44.6% For 42-month period, rate 9-month-old significantly higher than 3-, 6-, 24-month-old Notwithstanding, relative stem diameter 3- 6- Thus, maintaining plant material 3, 9 age would be beneficial initiation transplantation restoration programmes will also useful, especially during irregular flowering unpredictable fruiting intervals. A further experimental study other environmental factors could influence forest area Sarawak, Malaysia,