Table 1. Substitution effects on R¹, R² and R⁵.

Compound No.	R1	R2	R5	Dose (g a.i./ha)	Growth inhibition rate (%)
					ECHCG	SETVI	AMARE	ABUTH	ZEAMX
9	Cl		R5-a	7	90	50	70	40	0
10	Me		R5-a	7	95	95	90	75	0
11	Me		R5-a	7	80	70	60	60	0
12	Me		R5-a	7	95	90	80	90	0
13	Me		R5-a	7	90	80	100	80	0
14	Me		R5-a	7	75	30	70	70	0
15	Me		R5-a	7	95	95	80	65	0
16	Me		R5-a	7	75	80	98	80	0
17	Me		R5-a	7	90	70	60	60	0
18	Me		R5-a	7	70	70	98	80	0
19	Me		R5-a	31	30	0	10	0	10
20	Me		R5-a	7	20	20	60	30	0
21	Me		R5-a	7	60	95	95	98	0
22	Me		R5-b	7	98	100	100	95	0