Abstract: In this paper, accumulation of total dry matter of a single plant and parti-tioning of dry matter in various organs of winter wheat (Triticum sativum L. c.v.Fengmai 13") grown at an altitude of 840 m (lowland) are compared with those of the same wheat grown at 2150 m (highland). The results showed that the low temperature at high-altitude localities made slower the accumulation rate of the dry matter at early stages of winter wheat grown at,thase localities than at lowland, and its total accumulation level is less too. After the beginning of filling, however, more dry matter was accumulated.

Key words: response, winter, climate, altitude, matter of aerial