Copper deficiency-Lettuce

症状
Plants seem to be wilted and flabby. Along leaf tips and margins chlorotic mottling arises, which proceeds from old to younger leaves. Grey-brown necrotic areas develop in the chlorotic zones. Starting on the tips, leaves turn yellow and fade. Sometimes veins show light red or pink discoloration. Furthermore copper deficiency leads to inhibited growth and small, light heads.

原因
Copper deficiency on lettuce

症状
Along leaf tips and margins chlorotic mottling arises, which proceeds from old to younger leaves. Grey-brown necrotic areas develop in the chlorotic zones. Starting on the tips, leaves turn yellow and fade.

原因
Copper deficiency on leaves

症状
Along leaf tips and margins chlorotic mottling arises, which proceeds from old to younger leaves. Grey-brown necrotic areas develop in the chlorotic zones. Starting on the tips, leaves turn yellow and fade. In addition copper deficiency leads to inhibited growth and small, light heads. With severe deficiency no heads are formed.

原因
Copper deficiency on leaves

症状
Copper deficiency leads to inhibited growth and small, light heads. With severe deficiency no heads are formed. In addition along leaf tips and margins chlorotic mottling arises, which proceeds from old to younger leaves. Grey-brown necrotic areas develop in the chlorotic zones. Starting on the tips, leaves turn yellow and fade.

原因
Copper deficiency (on the right) compared to optimum supply (on the left)

症状
Copper deficiency leads to inhibited growth and small, light heads. With severe deficiency no heads are formed. In addition along leaf tips and margins chlorotic mottling arises, which proceeds from older to younger leaves. Grey-brown necrotic areas develop in the chlorotic zones. Starting on the tips, leaves turn yellow and fade. Development of root is slightly restricted. Secondary roots are long, thin and white.

原因
Copper deficiency on roots and leaves