Table 3.

Simulated N contents (% of DW) in seeds and yield (t ha⁻¹) with the tested scenarios. S0, control; S1, total N content of nodes 11–21 equal to 1 % at leaf abscission; S2, delayed abscission of nodes 11–21 (at 1604 °Cd) with a total N content equal to 1 %; S3, delayed abscission of nodes 11–21 (at 1604 °Cd) with a total N content equal to 1 % in all leaves

	N contents (% of DW) with a constant yield of			Yields (t ha-1) with a constant N content of
	3·6 t ha−1	8·2 t ha−1	3·18 %	3·18 %
S0	3·18	3·18	3·6	8·7
S1	3·49	3·34	3·95	9·17
S2	3·37	3·28	3·82	9·03
S3	3·64	3·40	4·12	9·34