TABLE 4.

Plant growth regulators assisted remediation of Cd-polluted soils.

Crop	Cd concentration in soil	PGR	Dose	Effect		References
				Control	PGR treated
Vicia faba	150 mg L–1	Jasmonic acid	0.01 mM	43.2 μmol g–1	17.3 μmol g–1	Ahmad et al., 2017
Mentha piperita L.	30 mg kg–1	Salicylic acid	10 μM	6 μmol g–1	7 μmol g–1	Ahmad et al., 2018
Mentha piperita L.	60 mg kg–1	Salicylic acid	10 μM	6 μmol g–1	14 μmol g–1
Mentha piperita L.	120 mg kg–1	Salicylic acid	10 μM	6 μmol g–1	34 μmol g–1
Zea mays L.	0.5 mM	Salicylic acid	0.5 mM	46.3 μmol g–1	14.7 μmol g–1	Gondor et al., 2016
Oryza sativa	50 μM	Salicylic acid	50 μM	166.7 μg g–1	90.6 μg g–1	Singh et al., 2018
Brassica napus (Zheshuang-72)	75.12 mg kg–1	Salicylic acid	50 μM	125 mg g–1	80 mg g–1	Ali et al., 2015
	150.12 mg kg–1	Salicylic acid	50 μM	185 mg g–1	125 mg g–1
	300.12 mg kg–1	Salicylic acid	50 μM	240 mg g–1	175 mg g–1
Brassica juncea L.	15.31 mg kg_1	Indole acetic acid	100 mg L–1	98.1 mg g–1	95.3 mg g–1	Chen et al., 2020
	15.31 mg kg_1		250 mg L–1	98.1 mg g–1	107.8 mg g–1
	15.31 mg kg_1		500 mg L–1	98.1 mg g–1	138.5 mg g–1
Brassica juncea L.	15.31 mg kg_1	Gibberellic acid	100 mg L–1	98.1 mg g–1	99.8 mg g–1	Chen et al., 2020
	15.31 mg kg_1		250 mg L–1	98.1 mg g–1	115.2 mg g–1
	15.31 mg kg_1		500 mg L–1	98.1 mg g–1	95.3 mg g–1
Brassica juncea L.	15.31 mg kg_1	24-Epibrassinolide	5 mg L–1	98.1 mg g–1	96.3 mg g–1	Chen et al., 2020
	15.31 mg kg_1		10 mg L–1	98.1 mg g–1	120.5 mg g–1
	15.31 mg kg_1		50 mg L–1	98.1 mg g–1	132.5 mg g–1
Amaranthus hybridus L.	30.15 mg kg–1	Diethyl aminoethyl hexanoate	10 μM	99 mg kg–1	125.7 mg kg–1	Li Y. et al., 2018
	30.15 mg kg–1		100 μM	99 mg kg–1	113.5 mg kg–1
Amaranthus hybridus L.	30.15 mg kg–1	6-Benzylaminopurine	10 μM	99 mg kg–1	110 mg kg–1	Li Y. et al., 2018
	30.15 mg kg–1		100 μM	99 mg kg–1	100 mg kg–1