Heavy Metal

Species

Plant part

Critical toxicity (mg・kg⁻¹)

Reference

As

Glycine max (soybean)

Shoot

299

[109]

Helianthus annus (sunflower)

Shoot

100

[110]

Zn

Glycine max (soybean)

Leaves

229

[111]

Helianthus annus (sunflower)

Leaves

190

[112]

Ni

Glycine max (soybean)

Shoot

52

[113]

Helianthus annus (sunflower)

Leaves

40

[114]