Magnesium deficiency-Sugar Beet

症状
Magnesium deficiency symptoms are visible on older leaves first. They show intercostal chlorosis beginning from the leaf margins and leaf tips and spreading over the whole leaf. A green margin remains around the veins. Yellowing is followed by necrotic spots which appear in the chlorotic zones.

原因
Magnesium deficiency. Mg deficiency can be easily mixed up with K deficiency as both show chloroses beginning on older leaves, followed by necroses. With K deficiency, the leaves have a more blue-green color and the leaf blade is more crinkled. Mn deficiency also shows similar symptoms, but those start on younger leaves. An infestation with beet yellow virus (BYV) or beet mild yellow virus (BMYV) causes similar symptoms to Mg deficiency, but in this case chlorosis starts from the leaf tips and the veins do not remain green.

症状
Magnesium deficiency symptoms are visible on older leaves first, they show intercostal chlorosis beginning from the leaf margins and leaf tips and spreading over the whole leaf area. A green margin remains around the veins. Chlorosis is followed by necrotic spots which appear in the chlorotic zones.

原因
Magnesium deficiency. Magnesium deficiency can be easily mixed up with potassium deficiency because this also shows leaf chlorosis beginning on older leaves and followed by necrosis. With potassium deficiency, the leaves have a more blue-green color and the leaf blade is more crinkled. Mn deficiency also shows similar symptoms, but these start on younger leaves. An infestation with beet yellow virus (BYV) or beet mild yellow virus (BMYV) causes similar symptoms to Mg deficiency, but in this case chlorosis starts from the leaf tips and the veins do not remain green.

症状
Magnesium deficiency symptoms are visible on older leaves first, they show intercostal chlorosis beginning from the leaf margins and leaf tips and spreading over the whole leaf area. A green margin remains around the veins. Chlorosis is followed by necrotic spots which appear in the chlorotic zones. Leaf margins are curled up.

原因
Magnesium deficiency. Magnesium deficiency can be easily mixed up with potassium deficiency because this also shows leaf chlorosis beginning on older leaves and followed by necrosis. With potassium deficiency, the leaves have a more blue-green color and the leaf blade is more crinkled. Mn deficiency also shows similar symptoms, but these start on younger leaves. An infestation with beet yellow virus (BYV) or beet mild yellow virus (BMYV) causes similar symptoms to Mg deficiency, but in this case chlorosis starts from the leaf tips and the veins do not remain green.

症状
Magnesium deficiency symptoms are visible on older leaves first, they show intercostal chlorosis beginning from the leaf edges and leaf tips and spreading over the whole leaf area. A green margin remains around the veins. Chlorosis is followed by necrotic spots which appear in the chlorotic zones. The leaf edges blacken and can break away.

原因
Magnesium deficiency. Magnesium deficiency can be easily mixed up with potassium deficiency because this also shows leaf chlorosis beginning on older leaves and followed by necrosis. With potassium deficiency, the leaves have a more blue-green colour and the leaf blade is more crinkled. Mn deficiency also shows similar symptoms, but these start on younger leaves.