1997; Winkler et al., 1997). Apart from its high oil
content, physic nut is also capable of growing in
infertile soil (Heller, 1996; Ginting and Maryono,
2009), making it one of the ideal trees which should
be promoted for planting to provide oil for domestic
use.
However, one of its shortcoming trait is that
these seeds with high oil yield do not reach maturity
synchronously, contributing to a low yield of fresh
nut per plant during harvesting and requiring many