Chromium uptake and its effects on certain plant nutrients in maize (Zea mays L. cv. Ganga 5)

Abstract

The effects of chromium at 0.05,0.1,0.25,0.5 and 1.0 mM on iron, manganese, zinc and copper in maize (Zea mays L. cv. Ganga 5) were studied in controlled glass house conditions at ambient temperature after 56 days growth when plants started showing vein‐clearing and papery appearence in the leaves. No clear pattern of iron concentration and in general, the reductions in manganese, zinc and copper in response to chromium supply were observed. In stem and roots, an increase in zinc concentration due to chromium was found. Chromium uptake was maximum in roots as compared to other plant parts, at 1.0 mM chromium, the uptake was significant.

Key words:

• Chromium uptake
• plant nutrients
• maize