TABLE 3.

Phenotypic parameters (mean ± SE) for one part of rice seedlings treated with biochar leacheates and grown at 28°C for 7 days.

Parameters	Biochar treatment concentrations
	Control (0%)	1%	3%	5%	10%
Plant height (cm)	15.89 ± 0.15	15.78 ± 0.2635	14.30 ± 0.13**	16.28 ± 0.25	15.54 ± 0.23
Root length (cm)	5.34 ± 0.31	5.17 ± 0.48	5.25 ± 0.27	5.47 ± 0.20	5.50 ± 0.27
Dry weight (mg)	0.0322 ± 0.0014	0.0312 ± 0.0019	0.0338 ± 0.0020	0.0395 ± 0.0016	0.0332 ± 0.0022

Asterisks indicate statistically significant differences from the control (n = 30, *P < 0.05, and **P < 0.01).