Cold Temperature Induced Phosphorus Deficiency

20130604-121047The picture shows a potato plant’s response to cold spring weather.
Note the purple leaves. These show phosphorus (P) deficiency due to the P not being readily taken up by the plant under low temperatures. There is also some frost bite after 3 nights of -1C temperatures. The potato is more hardy than maize (corn) because the potato is from the cold, high Andes of Peru.


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