Symptoms
Chlorosis starts near the centre vein from the tip of the leaves and spreads between the veins. A narrow area on each side of the main and the subsidiary veins remains green.
This deficiency appears initially on the older leaves.
Reasons
Magnesium deficiency
Tobacco - Chlorosis
Symptoms
This deficiency shows initially on the older leaves. Chlorosis starts near the centre vein from the tip of the leaves and spreads between the veins. At progressing deficiency, whitish necrotic blotches occur in the chlorotic area. A narrow seam on each side of the main and the subsidiary veins remains green.
Reasons
Magnesium deficiency
Tobacco - Chlorosis
Symptoms
This deficiency shows initially on the older leaves. A chlorosis starts near the centre vein from the tip of the leaves and spreads between the veins. At progressing deficiency, whitish necrotic blotches occur in the chlorotic area. A narrow seam on each side of the main and the subsidiary veins remains green.
Reasons
Magnesium deficiency
Tobacco - Chlorosis
Symptoms
This deficiency shows initially on the older leaves. A chlorosis starts near the centre vein from the tip of the leaves and spreads between the veins. At progressing deficiency, whitish necrotic blotches occur in the chlorotic area. A narrow seam on each side of the main and the subsidiary veins remains green.
Reasons
Magnesium deficiency
Magnesium deficiency made worse by
Sandy soils
Acidic soils
Potassium rich soils
Soils receiving high potash applications
Cold wet periods
Magnesium is important for
Increases photosynthetic activity maintaining good growth for high yields
