Phosphorus deficiency in Maize

Symptoms
Young plants are dwarfed and thin with dark green leaves. Leaf margins, veins and stems show purple tints which may spread over the whole leaf blade. Older leaves of the young plants are affected first. The reddish discoloration is usually visible in the juvenile stage only.

Reasons
Phosphorus deficiency Some maize hybrids show reddish leaves in younger development stages although P supply is sufficient.

Symptoms
Cob size is severely reduced.

Reasons
Phosphorus deficiency on cob (right)

Symptoms
Leaf blades are dark green, while margins, veins and stems show a dull, purple tint which may spread over the whole leaf blade. Older leaves are affected first. The reddish discoloration is usually visible in the juvenile stage only.

Reasons
Phosphorus deficiency Some maize hybrids show reddish leaves in younger development stages although P supply is sufficient.

Symptoms
Tissue on the leaf base and along the main vein is dark green, while the marginal, interveinal area towards the leaf tip shows a distinct purple tint. By the time, the discoloration spreads over the entire leaf blade. Older leaves are affected first. The reddish discoloration is usually visible in the juvenile stage only.

Reasons
Phosphorus deficiency Some maize hybrids show reddish leaves in younger development stages although P supply is sufficient.

Symptoms
Leaf blades are dark green, while margins and veins show a dull, purple tint which may spread over the whole leaf blade. Older leaves are affected first. The reddish discoloration is usually visible in the juvenile stage only.

Reasons
Phosphorus deficiency Some maize hybrids show reddish leaves in younger development stages although P supply is sufficient.

Symptoms
Tissue on the leaf base and along the main vein is dark green, while the marginal, interveinal area towards the leaf tip shows a distinct purple tint. By the time, the discoloration spreads over the entire leaf blade. Older leaves are affected first. The reddish discoloration is usually visible in the juvenile stage only.

Reasons
Phosphorus deficiency Some maize hybrids show reddish leaves in younger development stages although P supply is sufficient.

Symptoms
Tissue on the leaf base and along the main vein is dark green, while the marginal, interveinal area towards the leaf tip shows a distinct purple tint. By the time, the discoloration spreads over the entire leaf blade. Older leaves are affected first. The reddish discoloration is usually visible in the juvenile stage only.

Reasons
Phosphorus deficiency Some maize hybrids show reddish leaves in younger development stages although P supply is sufficient.