Abstract: In this paper we used data of "the study of physiological--ecological rules on high-yielding culture of rice in the plateau", of which are obtained from the field plot experiments of rice grown at Yuanjiang (dry--heat river valley about 400 m altitude), Kunming (warm-cool plateau lake-shore about 1900 m altitude), Lijiang (cold-cool plateau area about 2400 m altitude), Yunnan, respectively, from 1983 to 1985. The total tendency of dry-matter production and partitioning in the aerial part of rice grown at different altitude localities was compared, based on the total mean value of six treatments in eighteen plots for three years, The main results are as followst.

Key words: Rice