Representatives of the genus Euonymus L. accumulate fatty oil in their seeds and arils and are of interest as high-oil-bearing plants. Studying fruit formation and the accumulation of dry matter and crude fat is important. The fruits of E. macropterus Rupr. have the highest dry matter content in the pericarp. Dry matter accumulation follows a broken curve similar to a sigmoid curve. Dry matter accumulation in seeds and arils occurs in parallel along a double-sigmoid curve or is nearly linear; in arils it is faster but in smaller quantities. The dynamics of crude fat accumulation in arils and seeds are described by a sigmoid curve. The maximum value in arils exceeds that in seeds, but is reached 1–2 weeks later.

Trusov N.A.