In freshly matured seeds, two small first true leaves
142.4 ± 16.9 mm in length were observed on the epicotyl plumule
(Fig. 3a), and they grew to a length of 430.9 ± 24.5 mm during 12
weeks of cold stratification (Fig. 3b). Many small lipid bodies and
some large protein bodies and vacuoles were observed in all cells in
the plumule apical meristem of fresh seeds (Fig. 3c). The number of
lipid and protein bodies was reduced greatly during cold stratifi-
cation for 12 weeks, and cell division resulted in formation of new