Fig. 2. Change in shoot dry weight (A) and phenological stages of main culms (B) with thermal time from emergence for tillering and uniculm plants. Data are presented for tillering (closed symbols) and uniculm (open symbols) plants, grown at densities of two (circles), four (upward pointing triangles), eight (squares) and 16 (downward pointing triangles) plants m^–2. In B, phenological stages were floral initiation, ligule appearance of the final leaf, anthesis and grain maturity. Vertical lines in A and horizontal lines in B represent s.e.m. of three replications.