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Fig. 4. Effect of chlormequat chloride (CCC) and ethephon on number of green leaves (bars) and total number of emerged leaves per plant produced by the main shoot, and T1, T2, T3, and T4 tillers of oat at 14- and 18-h daylengths in Exp. 1 (DAT is days after treatment). The proportion of leaves produced by the main shoot is shown as the uppermost part of the bar, T1 tiller as the second uppermost, T2 tiller as the third uppermost, and so on. At each measurement date, the same letters indicate no significant difference at P 
0.05; ns is not significant.
