Table 3.

Effects of different concentrations of water extracts from the leaves of Flaveria bidentis on the fresh and dry weights of three plants.

Plant species	Concentration (g/mL)	Fresh weight (g)	RI of the fresh weight	Dry weight (g)	RI of the dry weight
Shanghai green	0	0.71 ± 0.07a		0.07 ± 0.02a
	0.025	0.39 ± 0.04b	− 0.45	0.03 ± 0.01ab	− 0.57
	0.050	0.06 ± 0.01c	− 0.91	0.01 ± 0.01b	− 0.82
	0.075	0.02 ± 0.00c	− 0.97	0.01 ± 0.01b	− 0.85
	0.100	0.01 ± 0.00c	− 0.99	0.00 ± 0.00c	− 0.95
Wheat	0	1.50 ± 0.12a		0.42 ± 0.02a
	0.025	1.02 ± 0.07ab	− 0.32	0.37 ± 0.02a	− 0.13
	0.050	1.01 ± 0.08b	− 0.33	0.29 ± 0.03b	− 0.31
	0.075	0.43 ± 0.08c	− 0.71	0.20 ± 0.01c	− 0.54
	0.100	0.31 ± 0.02c	− 0.79	0.19 ± 0.02c	− 0.56
Barnyard grass	0	0.67 ± 0.03a		0.14 ± 0.02a
	0.025	0.23 ± 0.04b	− 0.66	0.09 ± 0.02b	− 0.36
	0.050	0.19 ± 0.02b	− 0.72	0.06 ± 0.01bc	− 0.57
	0.075	0.10 ± 0.01c	− 0.86	0.03 ± 0.00c	− 0.82
	0.100	0.01 ± 0.00d	− 0.98	0.01 ± 0.00d	− 0.93

Data are shown as the mean ± standard deviation. Different letters in the same column for each treatment indicate significant differences at the P < 0.05 level, while the same letter indicates no significant difference at the P < 0.05 level.