Lengthening the time in nursery might produce vigorous
palms that could ensure successful field establishment, and
that have the potential for high initial accumulated yield
than plants coming from traditional nurseries (Carlos et al.
2006). The use of CO2 enrichment may substitute for the
length of time in the nurseries. Basically, increasing CO2
level is able to enhance photosynthesis, reduce photorespiration
rate and produce extra photoassimilates that are
partitioned to plant organs for stimulation of growth (Eric
et al. 2000; Jaafar 2004). The latter is caused by enhanced
maximum photosynthesis (Amax) and quantum efficiency
(a) that is simultaneously followed by the reduction in dark
respiration rate (Jaafar et al. 2005; Loats and Rebbeck
1999).