Iron Flashcards
1
Q
Iron deficiency symptoms
A
Young leaves are yellow white with green veins (intervening chlorosis).
Older leaves remain green as iron in immobile in plant.
In addition there will be poor growth and leaf loss.
2
Q
Cause of iron deficiency in plants
A
pH of above 7 (alkaline) will restrict the ability of the plant to take up iron.
Types of iron may not be suitable; dicotyledonous plants take up Fe2 but only Fe3+ maybe available.
3
Q
Treatment of deficiency
A
Add sulphuric to reduce pH.
Add chelates iron and magnesium (such as sequestrine ) around plant roots.
4
Q
Iron
Rôle in plant
A
Essential for synthesis of chlorophyll.
