Table 2.

Leaf symptoms of Cd toxicity of tow tomato cultivars under five Cd levels

Days of Cd exposure	Cd treatment (μmol/L)	Leaf symptoms
		Hezuo 903	Jiangshu 14
7	0	V	V
	0.1	V	V
	1	IV	IV
	5	III	III
	10	II	II
14	0	V	V
	0.1	V	V
	1	IV	IV
	5	III	III
	10	II	II
21	0	V	V
	0.1	V	V
	1	IV	IV
	5	III	III
	10	I	I
33	0	V	V
	0.1	V	V
	1	IV	IV
	5	III	III
	10	I	I

Leaf symptoms of Cd toxicity (necrotic patches on leaf blade) for Cd treatments: I–very severe; II–severe; III–mild; IV–slight; V–very slight/absent